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IN THE CLAIMS 



CLAIM 1 (Currently Amended) A superconducting apparatus comprising a composition 
having a transition temperature greater than or equal to 26°K, the composition including 
a rare earth or rare earth-like element, a transition metal element capable of exhibiting 
multivalent states and oxygen, including at least one phase that exhibits 
superconductivity at temperature greater than or equal to 26°K, a m e ans temperature 
controller for maintaining said composition at said temperature to exhibit said 
superconductivity and m e an a current source for passing an electrical superconducting 
current through said composition while exhibiting said superconductivity. 

CLAIM 2 (Previously Presented) The superconducting apparatus of claim 1 , further 
including an alkaline earth element substituted for at least one atom of said rare earth or 
rare earth-like element in said composition. 

CLAIM 3 (Previously Presented) The superconducting apparatus of claim 2, where said 
transition metal is Cu. 

CLAIM 4 (Previously Presented) The superconducting apparatus of claim 3, where said 
alkaline earth element is selected from the group consisting of B, Ca, Ba, and Sr. 

CLAIM 5 (Previously Presented) The superconducting apparatus of claim 1 , where said 
transition metal element is selected from the group consisting of Cu, Ni, and Cr. 

CLAIM 6 (Previously Presented) The superconducting apparatus of claim 2, where said 
rare earth or rare earth-like element is selected from the group consisting of La, Nd, and 
Ce. 

CLAIM 7 (Previously Presented) The superconducting apparatus of claim 1 , where said 
phase is crystalline with a perovskite-like structure. 



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CLAIM 8 (Previously Presented) The superconducting apparatus of claim 2, where said 
phase is crystalline with a perovskite-like structure. 

CLAIM 9 (Previously Presented) The superconducting apparatus of claim 1 , where said 
phase exhibits a layer-like crystalline structure. 

CLAIM 10 (Previously Presented) The superconducting apparatus of claim 1 , where 
said phase is a mixed copper oxide phase. 

CLAIM 1 1 (Previously Presented) The superconducting apparatus of claim 1 f where 
said composition is comprised of mixed oxides with alkaline earth doping. 

CLAIM 12 (Currently Amended) A superconducting combination, comprising a 
superconductive oxide having a transition temperature greater than or equal to 26°K, 

meaas a current source for passing a superconducting electrical current through said 
composition while said composition is at a temperature greater than or equal to 26°K 
and less than said transition temperature, and 

cooling m ea n s a temperature controller for cooling said composition to a 
superconducting state at a temperature greater than or equal to 26°K. 

CLAIM 13 (Original) The combination of claim 12, where said superconductive 
composition includes a transition metal oxide. 

CLAIM 14 (Original) The combination of claim 12, where said superconductive 
composition includes Cu-oxide. 

CLAIM 15 (Original) The combination of claim 12, where said superconductive 
composition includes a multivalent transition metal, oxygen, and at least one additional 
element. 



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CLAIM 16 (Original) The combination of claim 15, where said transition metal is Cu. 

CLAIM 17 (Original) The combination of claim 15, where said additional element is a 
rare earth or rare earth-like element. 

CLAIM 18 (Original) The combination of claim 15, where said additional element is an 
alkaline earth element 

CLAIM 19 (Original) The combination of claim 12, where said composition includes a 
perovskite-like superconducting phase. 

CLAIM 20 (Original) The combination of claim 12, where said composition includes a 
substituted transition metal oxide. 

CLAIM 21 (Original) The combination of claim 20, where said substituted transition 
metal oxide includes a multivalent transition metal element. 

CLAIM 22 (Original) The combination of claim 20, where said substituted transition 
metal oxide is an oxide of copper. 

CLAIM 23 (Original) The combination of claim 20, where said substituted transition 
metal oxide has a layer-like structure. 

CLAIM 24 (Currently Amended) An apparatus comprising: 

a transition metal oxide having a phase therein which exhibits a superconducting state 
at a critical temperature greater than or equal to of 26°K, 

m ea ns a temperature controller for lowering the temperature of said material at least to 
said critical temperature to produce said superconducting state in said phase, and 



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m ea n s a current source for passing an electrical superconducting current through said 
transition metal oxide while it is in said superconducting state. 

CLAIM 25 (Previously Presented) The apparatus of claim 24, where said transition 
metal oxide is comprised of a transition metal capable of exhibiting multivalent states. 

CLAIM 26 (Previously Presented) The apparatus of claim 24, where said transition 
metal oxide is comprised of a Cu oxide. 

CLAIM 27 (Currently Amended) A superconducting apparatus comprising a 
composition having a transition temperature greater than or equal to 26°K, said 
composition being a substituted Cu-oxide including a superconducting phase having a 
structure which is structurally substantially similar to the orthorhombic-tetragonal phase 
of said composition, means a temperature controller for maintaining said composition at 
a temperature greater than or equal to said transition temperature to put said 
composition in a superconducting state; and m ea ns a current source for passing 
current through said composition while in said superconducting state. 

CLAIM 28 (Previously Presented) The superconducting apparatus of claim 27, where 
said substituted Cu-oxide includes a rare earth or rare earth-like element. 

CLAIM 29 (Previously Presented) The superconducting apparatus of claim 27, where 
said substituted Cu-oxide includes an alkaline earth element. 

CLAIM 30 (Previously Presented) The superconducting apparatus of claim 29, where 
said alkaline earth element is atomically large with respect to Cu. 

CLAIM 31 (Previously Presented) The superconducting apparatus of claim 27, where 
said composition has a crystalline structure which enhances electron-phonon 



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interactions to produce superconductivity at a temperature greater than or equal to 
26°K. . 

CLAIM 32 (Previously Presented) The superconducting apparatus of claim 31, where 
said crystalline structure is layer-like, enhancing the number of Jahn-Teller polarons in 
said composition. 

CLAIM 33 (Previously Presented) A superconducting apparatus comprising a 
composition having a superconducting onset temperature greater than or equal to 26°K, 
the composition being comprised of a copper oxide doped with an alkaline earth 
element where the concentration of said alkaline earth element is near to the 
concentration of said alkaline earth element where the superconducting copper oxide 
phase in said composition undergoes an orthorhombic to tetragonal structural phase 
transition. 

CLAIM 34 (Currently Amended) A superconducting apparatus having a superconducting 
onset temperature greater than or equal to 26°K, the composition being comprised of a 
mixed copper oxide doped with an element chosen to result in Cu 3+ ions in said 
composition and a means current source for passing a superconducting current 
through said superconducting composition. 

CLAIM 35 (Previously Presented) The superconducting apparatus of claim 34, where 
said doping element includes an alkaline earth element. 

CLAIM 36 (Currently Amended) A combination comprising: 

a composition having a superconducting onset temperature greater than or equal to 
26°K, said composition being comprised of a substituted copper oxide exhibiting mixed 
valence states and at least one other element in its crystalline structure, 



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meaf*s-a current source for passing a superconducting electrical current through said 
composition while said composition is at a temperature greater than or equal to 26°K 
and less than said superconducting onset temperature, and 

coo l ing moans a temperature controller f or cooling said composition to a 
superconducting state at a temperature greater than or equal to 26°K. 

CLAIM 37 (Original) The combination of claim 36, where said at least one other element 
is an alkaline earth element. 

CLAIM 38 (Previously Presented) The combination of claim 36, where said at least one 
other element is an element which results in Cu 3+ ions in said composition. 

CLAIM 39 (Previously Presented) The combination of claim 36, where said at least one 
other element is an element chosen to result in the presence of both Cu 2 * and Cu 3+ ions 
in said composition. 

CLAIM 40 (Currently Amended) An apparatus comprising a superconductor exhibiting a 
superconducting onset at an onset temperature greater than or equal to 26°K, said 
superconductor being comprised of at least four elements, none of which is itself 
superconducting at a temperature greater than or equal to 26°K, me a ns a temperature 
controller for maintaining said superconductor at an operating temperature in excess of 
said onset temperature to maintain said superconductor in a superconducting state and 
meaf*s a current source for passing current through said superconductor while in said 
superconducting state. 

CLAIM 41 (Previously Presented) The apparatus of claim 40, where said elements 
include a transition metal and oxygen. 

CLAIM 42 (Currently Amended) A appar a tus An apparatus having a superconducting 
onset temperature greater than or equal to 26°K, said superconductor being a doped 



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transition metal oxide, where said transition metal is itseff non-superconducting and 
means a current source for passing a superconducting electric current through said 
composition. 

CLAIM 43 (Previously Presented) The apparatus of claim 42, where said doped 
transition metal oxide is multivalent in said superconductor. 

CLAIM 44 (Previously Presented) The apparatus of claim 42, further including an 
element which creates a mixed valent state of said transition metal. 

CLAIM 45 (Previously Presented) The apparatus of claim 43, where said transition 
metal is Cu 

CLAIM 46 (Currently Amended) An apparatus having a superconductor having a 
superconducting onset temperature greater than or equal to 26°K, said superconductor 
being an oxide having multivalent oxidation states and including a metal, said oxide 
having a crystalline structure which is oxygen deficient and a meaBS a current source 
for passing a superconducting electric current through said superconductor. 

CLAIM 47 (Previously Presented) The apparatus of claim 46, where said transition 
metal is Cu. 

CLAIM 48 (Previously Presented) A superconductive apparatus comprising a 
superconductive composition comprised of a transition metal oxide having substitutions 
therein, the amount of said substitutions being sufficient to produce sufficient electron- 
phonon interactions in said composition that said composition exhibits a 
superconducting onset at temperatures greater than or equal to 26°K, and a source of 
current for passing a superconducting electric current through said superconductor. 

CLAIM 49 (Previously Presented) The superconductive apparatus of claim 48, where 
said transition metal oxide is multivalent in said composition. 



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CLAIM 50 (Previously Presented) The superconductive apparatus of claim 48, where 
said transition metal is Cu 

CLAIM 51 (Previously Presented) The superconductive apparatus of claim 48, where 
said substitutions include an alkaline earth element. 

CLAIM 52 (Previously Presented) The superconductive apparatus of claim 48, where 
said substitutions include a rare earth or rare earth-like element. 

CLAIM 53 (Previously Presented) A superconductive apparatus comprised of a copper 
oxide having a layer-like crystalline structure and at least one additional element 
substituted in said crystalline structure, said structure being oxygen deficient and 
exhibiting a superconducting onset temperature greater than or equal to 26°K. 

CLAIM 54 (Original) The superconductor of claim 53, where said additional element 
creates a mixed valent state of said copper oxide in said superconductor. 

CLAIM 55 (Currently Amended) A combination, comprising: 

a transition metal oxide having an superconducting onset temperature greater than 
about 26°K and having an oxygen deficiency, said transition metal being non- 
superconducting at said superconducting onset temperature and said oxide having 
multivalent states, 

m e ans a current source for passing an electrical superconducting current through said 
oxide while said oxide is at a temperature greater than or equal to 26°K, and 

coo l ing m e ans a temperature controller for cooling said oxide in a superconducting state 
at a temperature greater than or equal to 26°K. 



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CLAIM 56 (Original) The combination of claim 55, where said transition metal is Cu. 
CLAIM 57 (Currently Amended) A combination including; 

a superconducting oxide having a superconducting onset temperature greater than or 
equal to 26°K and containing at least 3 elements which are non-superconducting at said 
onset temperature, 

means a current source for passing a superconducting current through said oxide while 
said oxide is maintained at a temperature greater than or equal to 26°K, and 

m e ans a temperature controller for maintaining said oxide in a superconducting state at 
a temperature greater than or equal to 26°K and less than said superconductive onset 
temperature. 

CLAIM 58 (Currently Amended) A combination, comprised of: 

a copper oxide superconductor having a superconductor onset temperature greater 
than about 26°K including an element which results in a mixed valent state in said 
oxide, said oxide being crystalline and having a layer-like structure, 

means a current source for passing a superconducting current through said copper 
oxide while it is maintained at a temperature greater than or equal to 26°K and less than 
said superconducting onset temperature, and 

m ea n s a temperature controller for cooling said copper oxide to a superconductive state 
at a temperature greater than or equal to 26°K and less than said superconducting 
onset temperature. 

CLAIM 59 (Currently Amended) A combination, comprised of: 



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a ceramic-like material having an onset of superconductivity at an onset temperature 
greater than or equal to 26°K, 

m ea ns a current source for passing a superconducting electrical current through said 
ceramic-like material while said material is maintained at a temperature greater than or 
equal to 26°K and less than said onset temperature, and 

m e an s a temperature controller for cooling said superconducting ceramic-like material 
to a superconductive state at a temperature greater than or equal to 26°K and less than 
said onset temperature, said material being superconductive at temperatures below 
said onset temperature and a ceramic at temperatures above said onset temperature. 

CLAIM 60 (Previously Presented) An apparatus comprised of a transition metal oxide, 
and at least one additional element, said superconductor having a distorted crystalline 
structure characterized by an oxygen deficiency and exhibiting a superconducting onset 
temperature greater than or equal to of 26°K, a source of current for passing a 
superconducting electric current in said transition metal oxide, and a cooling apparatus 
for maintaining said transition metal oxide below said onset temperature at a 
temperature greater than or equal to 26°K. 

CLAIM 61 (Previously Presented) The apparatus of claim 60, where said transition 
metal is Cu 

CLAIM 62 (Previously Presented) An apparatus comprised of a transition metal oxide 
and at least one additional element, said superconductor having a distorted crystalline 
structure characterized by an oxygen excess and exhibiting a superconducting onset 
temperature greater than or equal to 26°K, a source of current for passing a 
superconducting electric current in said transition metal oxide, and a cooling apparatus 
for maintaining said transition metal oxide below said onset temperature and at a 
temperature greater than or equal to of 26°K. 



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CLAIM 63 (Previously Presented) The apparatus of claim 62, where said transition 
metal is Cu 

CLAIM 64 (Currently Amended) A combination, comprising: 

a mixed copper oxide composition having enhanced polaron formation, said 
composition including an element causing said copper to have a mixed valent state in 
said composition, said composition further having a distorted octahedral oxygen 
environment leading to a T c greater than or equal to 26°K, 

means -a current source for providing a superconducting current through said 
composition at temperatures greater than or equal to 26°K and less than said T Cl and 

cooling means a temperature controller for cooling said composition to a temperature 
greater than or equal to 26°K and less than said T c : 

CLAIM 65 (Previously Presented) An apparatus comprising a composition exhibiting 
superconductivity at temperatures greater than or equal to 26°K, said composition being 
a ceramic-like material in the RE-AE-TM-0 system, where RE is a rare earth or near 
rare earth element, AE is an alkaline earth element, TM is a multivalent transition metal 
element having at least two valence states in said composition, and O is oxygen, the 
ratio of the amounts of said transition metal in said two valence states being determined 
by the ratio RE : AE, a source of current for passing a superconducting electric current 
in said transition metal oxide, and a cooling apparatus for maintaining said transition 
metal oxide below said onset temperature and at a temperature greater than or equal to 
26°K. 

CLAIM 66 (Previously Presented) An apparatus comprising a superconductive 
composition having a transition temperature greater than or equal to 26°K, the 
composition including a multivalent transition metal oxide and at least one additional 
element, said composition having a distorted orthorhombic crystalline structure, a 



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source of current for passing a superconducting electric current in said transition metal 
oxide, and a cooling apparatus for maintaining said transition metal oxide below said 
onset temperature and at a temperature greater than or equal to 26°K. 

CLAIM 67 (Previously Presented) The apparatus of claim 66, where said transition 
metal oxide is a mixed copper oxide. 

CLAIM 68 (Previously Presented) The apparatus of claim 67, where said one additional 
element is an alkaline earth element 

CLAIM 69 (Currently Amended) A superconductive combination, comprising: 

a superconducting composition exhibiting a superconducting transition temperature 
greater than or equal to 26°K, said composition being a transition metal oxide having a 
distorted orthorhombic crystalline structure, and 

m e ans a current source for passing a superconducting electrical current through said 
composition while said composition is at a temperature greater than or equal to 26°K 
and less than said superconducting transition temperature. 

CLAIM 70 (Original) The combination of claim 69, where said transition metal oxide is a 
mixed copper oxide. 

CLAIM 71 (Original) The combination of claim 70, where said mixed copper oxide 
includes an alkaline earth element. 

CLAIM 72 (Original) The combination of claim 71, where said mixed copper oxide 
further includes a rare earth or rare earth-like element. 



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CLAIM 73 (Previously Presented) An apparatus comprising a composition of matter 
comprising a superconducting onset temperature greater than or equal to 26°K, said 
composition of matter made by a method comprising the steps of: 

preparing powders of oxygen-containing compounds of a rare earth or rare earth-like 
element, an alkaline earth element, and copper, 

mixing said compounds and firing said mixture to create a mixed copper oxide 
composition including said alkaline earth element and said rare earth or rare earth-like 
element, and 

annealing said mixed copper oxide composition at an elevated temperature less than 
about 950°C in an atmosphere including oxygen to produce a superconducting 
composition having a mixed copper oxide phase exhibiting a superconducting onset 
temperature greater than or equal to 26°K ) said superconducting composition having a 
layer-like crystalline structure after said annealing step. 

CLAIM 74 (Original) The method of claim 73, where the amount of oxygen incorporated 
into said composition is adjusted by said annealing step, the amount of oxygen therein 
affecting the critical temperature T c of the superconducting composition. 

CLAIM 75 (Previously Presented) An apparatus comprising a composition of matter for 
carrying a superconductive current comprising a superconducting onset temperature 
greater than or equal to 26°K I said superconductor being comprised of a rare earth or 
rare earth-like element (RE), an alkaline earth element (AE), copper (CU), and oxygen 
(0) and having the general formula RE-AE-CU-O, said composition being made by a 
method including the steps of combining said rare earth or rare earth-like element, said 
alkaline earth element and said copper in the presence of oxygen to produce a mixed 
copper oxide including said rare earth or rare earth-like element and said alkaline earth 
element therein, and 



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heating said mixed copper oxide to produce a superconductor having a crystalline layer- 
like structure and exhibiting a superconducting onset temperature greater than or equal 
to 26°K the critical transition temperature of said superconductor being dependent on 
the amount of said alkaline earth element therein. 

CLAIM 76 (Previously Presented) The apparatus of claim 75, where said heating step is 
done in an atmosphere including oxygen. 

CLAIM 77 (Currently Amended) A combination, comprising: 

a mixed copper oxide composition including an alkaline earth element (AE) and a rare 
earth or rare earth-like element (RE), said composition having a layer-like crystalline 
structure and multi-valent oxidation states, said composition exhibiting a substantially 
zero resistance to the flow of electrical current therethrough when cooled to a 
superconducting state at a temperature greater than or equal to 26°K, said mixed 
copper oxide having a superconducting onset temperature greater than or equal to 
26°K, and 

el e ctr i ca l m ea ns a current source for passing an electrical superconducting current 
through said composition when said composition exhibits substantially zero resistance 
at a temperature greater than or equal to 26°K and less than said onset temperature. 

CLAIM 78 (Original) The combination of claim 77, where the ratio (AE.RE) : Cu is 
substantially 1:1 

CLAIM 79 (Original) The combination of claim 77, where the ratio (AE.RE) : Cu is 
substantially 1:1. 

CLAIM 80 (Original) The combination of claim 77, wherein said crystalline structure is 
perovskite-like. 



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CLAIM 81 (Original) The combination of claim 77, where said mixed copper oxide 
composition has a non-stoichiometric amount of oxygen therein. 

CLAIM 82 (Previously Presented) An apparatus comprising a superconductor 
comprising a superconducting onset temperature greater than or equal to 26°K, said 
superconductor being comprised of a rare earth or rare earth-like element (RE), an 
alkaline earth element (AE), a transition metal element (TM), and Oxygen (0) and 
having the general formula RE-AE-TM-O, said superconductor being made by a method 
including the steps of combining said rare earth or rare earth-like element, said alkaline 
earth element and said transition metal element in the presence of oxygen to produce a 
mixed transition metal oxide including said rare earth or rare earth-like element and said 
alkaline earth element therein, and 

heating said mixed transition metal oxide to produce superconductor having a 
crystalline layer-like structure and exhibiting a superconducting onset temperature 
greater than or equal to 26°K, said superconductor having a non-stoichiometric amount 
of oxygen therein. 

CLAIM 83 (Previously Presented) The apparatus of claim 82, where said transition 
metal is copper. 

CLAIM 84 (Currently Amended) A superconducting combination, comprising: 

a mixed transition metal oxide composition containing a non-stoichiometric amount of 
oxygen therein, a transition metal and at least one additional element, said composition 
having substantially zero resistance to the flow of electricity therethrough when cooled 
to a superconducting state at a temperature greater than or equal to 26°K, said mixed 
transition metal oxide has a superconducting onset temperature greater than or equal to 
26°K, and 



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e l e ctrica l moans current source for passing an electrical superconducting current 
through said composition when said composition is in said superconducting state at a 
temperature greater than or equal to 26°K, and less than said superconducting onset 
temperature. 

CLAIM 85 (Original) The combination of claim 84, where said transition metal is copper. 

CLAIM 86 (Currently Amended) An apparatus comprising: 

a composition including a transition metal, a rare earth or rare earth-like element, an 
alkaline earth element, and oxygen, where said composition is a mixed transition metal 
oxide having a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting onset temperature greater than or equal to 26°K, 

m e ans a temperature controller for maintaining said composition to said 
superconducting state at a temperature greater than or equal to 26°K and less than said 
superconducting onset temperature, and 

m ea ns a current source for passing an electrical current through said composition while 
said composition is in said superconducting state. 

CLAIM 87 (Previously Presented) The apparatus of claim 86, where said transition 
metal is copper. 

CLAIM 88 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K, 

a cooler for cooling said composition to a temperature greater than or equal to 26°K at 
which temperature said composition exhibits said superconductive state, and 



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a current source for passing an electrical current through said composition while said 
composition is in said superconductive state. 

CLAIM 89 (Previously Presented) The apparatus of claim 88, where said composition is 
comprised of a metal oxide. 

CLAIM 90 (Previously Presented) The apparatus of claim 88, where said composition is 
comprised of a transition metal oxide. 

CLAIM 91 (Currently Amended) A combination, comprising: 

a composition exhibiting the onset of a DC substantially zero resistance state at an 
onset temperature in excess of 30 o K, and 

means a current source for passing an electrical current through said composition while 
it is in said substantially zero resistance state. 

CLAIM 92 (Previously Presented) The combination of claim 91 , where said composition 
is a copper oxide. 

CLAIM 93 (Currently Amended) An apparatus, comprising: 

a mixed copper oxide material exhibiting an onset of superconductivity at an onset 
temperature greater than or equal to 26°K ( and 

m ea ns a current source for producing an electrical current through said copper oxide 
material while it is in a superconducting state at a temperature greater than or equal to 
26°K. 



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CLAIM 94 (Previously Presented) The apparatus of claim 93, where said copper oxide 
material exhibits a layer-like crystalline structure. 

CLAIM 95 (Previously Presented) The apparatus of claim 93, where said copper oxide 
material exhibits a mixed valence state. 

CLAIM 96 (Currently Amended) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition comprising a copper-oxide compound having a layer-type 
perovskite-like crystal structure, the composition having a superconductor transition 
temperature T c of greater than or equal to 26°K; 

(b) means a current source for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) means a temperature controller for causing an electric current to flow in the 
superconductor element. 

CLAIM 97 (Previously Presented) The superconductive apparatus according to claim 96 
in which the copper-oxide compound of the superconductive composition includes at 
least one rare-earth or rare-earth-like element and at least one alkaline-earth element. 

CLAIM 98 (Previously Presented) The superconductive apparatus according to claim 97 
in which the rare-earth or rare-earth-like element is lanthanum. 

CLAIM 99 (Previously Presented) The superconductive apparatus according to claim 97 
in which the alkaline-earth element is barium. 



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CLAIM 100 (Previously Presented) The superconductive apparatus according to claim 
96 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 101 (Previously Presented) The superconductive apparatus according to claim 

100 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 

CLAIM 102 (Previously Presented) The superconductive apparatus according to claim 

101 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 

CLAIM 103 (Currently Amended) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the copper-oxide compound including at 
least one rare-earth or rare-earth-like element and at least one alkaline-earth element, 
the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T q = 0l the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) m e ans a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T q = 0 of the 
superconductive composition; and 



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(c) m e ans a current source for causing an electric current to flow in the superconductor 
element. 

CLAIM 104 (Previously Presented) The superconductive apparatus according to claim 
103 in which the rare-earth or rare-earth-like element is lanthanum. 

CLAIM 105 (Previously Presented) The superconductive apparatus according to claim 
103 in which the alkaline-earth element is barium. 

CLAIM 106 (Previously Presented) The superconductive apparatus according to claim 
103 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 107 (Previously Presented) The superconductive apparatus according to claim 

106 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 

CLAIM 108 (Previously Presented) The superconductive apparatus according to claim 

107 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 

CLAIM 109 (Currently Amended) A superconductive apparatus comprising a 
composition having a transition temperature greater than or equal to 26°K, the 
composition including a rare earth or alkaline earth element, a transition metal element 
capable of exhibiting multivalent states and oxygen, including at least one phase that 
exhibits superconductivity at temperature greater than or equal to 26°K, means a_ 
temperature controller for maintaining said composition at said temperature to exhibit * 
said superconductivity and means a current source for passing an electrical 
superconducting current through said composition while exhibiting said 
superconductivity. . 



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CLAIM 110 (Previously Presented) The combination of claim 15, where said additional 
element is rare earth or alkaline earth element. 

CLAIM 1 1 1 (Previously Presented) A device comprising a superconducting transition 
metal oxide having a superconductive onset temperature greater than or equal to 26°K, 
said superconducting transition metal oxide being at a temperature less than said 
superconducting onset temperature and having a superconducting current flowing 
therein. 

CLAIM 112 (Previously Presented) A device comprising a superconducting copper 
oxide having a superconductive onset temperature greater than or equal to 26°K, said 
superconducting copper oxide being at a temperature less than said superconducting 
onset temperature and having a superconducting current flowing therein. 

CLAIM 113 (Previously Presented) A device comprising a superconducting oxide 
composition having a superconductive onset temperature greater than or equal to 26°K f 
said superconducting copper oxide being at a temperature less than said 
superconducting onset temperature and having a superconducting current flowing 
therein, said composition comprising at least one each of rare earth, an alkaline earth, 
and copper. 

CLAIM 114 (Previously Presented) A device comprising a superconducting oxide 
composition having a superconductive onset temperature greater than or equal to 26°K, 
said superconducting copper oxide being at a temperature less than said 
superconducting onset temperature and having a superconducting current flowing 
therein, said composition comprising at least one each of a group IIIB element, an 
alkaline earth, and copper. 

CLAIM 1 15 (Previously Presented) A device comprising a transition metal oxide having 
a T c greater than or equal to 26°K carrying a superconducting current said transition 
metal oxide is maintained at a temperature less than said T c . 



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CLAIM 116 (Previously Presented) An apparatus comprising a transition metal oxide 
having a T c greater than or equal to 26°K carrying a superconducting current said 
transition metal oxide is maintained at a temperature less than said T c . 

CLAIM 117 (Previously Presented) A structure comprising a transition metal oxide 
having a T c greater than or equal to 26°K carrying a superconducting current. 

CLAIM 118 (Previously Presented) An apparatus comprising a transition metal oxide 
having a T c greater than or equal to 26°K carrying a superconducting current. 

CLAIM 119 (Previously Presented) A device comprising a copper oxide having a T c 
greater than or equal to 26°K carrying a superconducting current said copper oxide is 
maintained at a temperature less than said T c . 

CLAIM 120 (Previously Presented) An apparatus comprising a copper oxide having a T c 
greater than or equal to 26°K carrying a superconducting current said copper oxide is 
maintained at a temperature less than said T c . 

CLAIM 121 (Previously Presented) A device comprising a copper oxide having a T c 
greater than or equal to 26°K carrying a superconducting current. 

CLAIM 122 (Previously Presented) An apparatus comprising a copper oxide having a T c 
greater than or equal to 26°K carrying a superconducting current. 

CLAIM 123 (Currently Amended) A superconductive apparatus comprising: 

a composition of the formula BaxLax-sCusOy wherein x is from about 0.75 to about 1 and 
y is the oxygen deficiency resulting from annealing said composition at temperatures 
from about 540°C to about 950°C and for times of about 15 minutes to about 12 hours, 



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said composition having a metal oxide phase which exhibits a superconducting state at 
a critical temperature greater than or equal to 26°K; 

a m e ans temperature controller for maintaining the temperature of said composition at a 
temperature less than 

said critical temperature to induce said superconducting state in said metal oxide phase; 
and 

a means current source for passing an electrical current through said composition while 
said metal oxide phase is in said superconducting state. 

CLAIM 124 (Previously Presented) A device comprising a composition of matter having 
a T c greater than or equal to 26°K carrying a superconducting current, said composition 
comprising at least one each of a 1MB element, an alkaline earth, and copper oxide said 
device is maintained at a temperature less than said T c . 

CLAIM 125 (Previously Presented) An apparatus comprising a composition of matter 
having a T c greater than or equal to 26°K carrying a superconducting current, said 
composition comprising at least one each of a rare earth, an alkaline earth, and copper 
oxide. 

CLAIM 126 (Previously Presented) A device comprising a composition of matter having 
a T c greater than or equal to 26°K carrying a superconducting current, said composition 
comprising at least one each of a rare earth, and copper oxide. 

CLAIM 127 (Previously Presented) A device comprising a composition of matter having 
a T c greater than or equal to 26°K carrying a superconducting current, said composition 
comprising at least one each of a IIIB element, and copper oxide. 

CLAIM 128 (Previously Presented) A transition metal oxide device comprising a T c _ 
greater than or equal to 26°K and carrying a superconducting current. 



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CLAIM 129 (Previously Presented) A copper oxide device comprising a Tc greater than 
or equal to 26°K and carrying a superconducting current. 

CLAIM 1 30 (Currently Amended) A superconductive apparatus comprising a 
composition having a transition temperature greater than or equal to 26°K, the 
composition including a rare earth or Group III B element, a transition metal element 
capable of exhibiting multivalent states and oxygen, including at least one phase that 
exhibits superconductivity at temperature greater than or equal to 26°K, a m e ans 
temperature controller for maintaining said composition at said temperature to exhibit 
said superconductivity and m e an s a current source for passing an electrical 
superconducting current through said composition which exhibiting said 
superconductivity. 

CLAIM 131 (Previously Presented) The combination of claim 15, where said additional 
element is a rare earth or Group NIB element. 

CLAIM 132 (Previously Presented) The combination of claim 12, where said 
composition includes a substantially perovskite superconducting phase. 

CLAIM 133 (Previously Presented) The superconducting apparatus of claim 27, where 
said substituted Cu-oxide includes a rare earth or Group III B element. 

CLAIM 134 (Previously Presented) The combination of claim 71, where said mixed 
copper oxide further includes a rare earth or Group III B element. 

CLAIM 135 Currently Amended) A combination, comprising: 

a mixed copper oxide composition including an alkaline earth element (AE) and a rare 
earth or Group III B element (RE), said composition having a substantially layered 
crystalline structure and multi-valent oxidation states, said composition exhibiting a 



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substantially zero resistance to the flow of electrical current therethrough when in a 
superconducting state at a temperature greater than or equal to 26°K, said mixed 
copper oxide having a superconducting onset temperature greater than or equal to 26°K 
and, 

e le ctr i ca l m e ans a current source for passing an electrical superconducting current 
through said composition when said composition exhibits substantially zero resistance 
at a temperature greater than or equal to 26°K and less than said onset temperature. 

CLAIM 136 (Previously Presented) The combination of claim 77, where said crystalline 
structure is substantially perovskite. 

CLAIM 137 (Currently Amended) An apparatus comprising: 

a composition including a transition metal, a rare earth or Group III B element, an 
alkaline earth element, and oxygen, where said composition is a mixed transition metal 
oxide having a non-stoichimetric amount of oxygen therein and exhibiting a 
superconducting state at a temperature greater than or equal to 26°K, 

m ea n s a temperature controller for maintaining said composition in said 
superconducting state at a temperature greater than or equal to 26°K, and less than 
said superconducting onset temperature, and 

m e ans a current source for passing an electrical current through said composition while 
said composition is in said superconducting state. 

CLAIM 138 (Previously Presented) The apparatus of claim 93, where said copper oxide 
material exhibits a substantially layered crystalline structure. 



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CLAIM 139 (Currently Amended) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the composition having a 
superconductor transition temperature T c of greater than or equal to 26°K; 

(b) m ea ns a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) means a current source for causing an electric current to flow in the superconductor 
element 

CLAIM 140 (Currently Amended) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the copper-oxide compound 
including at least one rare-earth or Group III B element and at least one alkaline-earth 
element, the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature* range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature Tn=o, the transition-onset temperature T c being 
greater than or equal to 26°K; 



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(b) m e ans a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk- resistivity intercept temperature T r=0 of the 
superconductive composition; and 

(c) m oa ns a current source for causing an electric current to flow in the superconductor 
element. 

CLAIM 141 (Previously Presented) An apparatus comprising a transition metal oxide 
having a phase therein which exhibits a superconducting state at a critical temperature 
greater than or equal to 26°K, 

a temperature controller maintaining the temperature of said material at a temperature 
less than said critical temperature to produce said superconducting state in said phase, 
and 

a current source passing an electrical supercurrent through said transition metal oxide 
while it is in said superconducting state. 

CLAIM 142 (Previously Presented) The apparatus of claim 141, where said transition 
metal oxide is comprised of a transition metal capable of exhibiting multivalent states. 

CLAIM 143 (Previously Presented) The apparatus of claim 141, where said transition 
metal oxide is comprised of a Cu oxide. 

CLAIM 144 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, a rare earth or rare earth-like element, an 
alkaline earth element, and oxygen, where said composition is a mixed transition metal 
oxide having a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting state at a temperature greater than or equal to 26°K, 



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a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K, and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 145 (Previously Presented) The apparatus of claim 144, where said transition 
metal is copper. 

CLAIM 146 (Previously Presented) An apparatus: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K, 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state, and 

a current source passing an electrical current through said composition while said 
composition is in said superconductive state. 

CLAIM 147 (Previously Presented) The apparatus of claim 146, where said composition 
is comprised of a metal oxide. 

CLAIM 148 (Previously Presented) The apparatus of claim 146, where said composition 
is comprised of a transition metal oxide. 

CLAIM 149 (Previously Presented) A superconductive apparatus for causing electric 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-Iike crystal structure, the composition having a superconductor 
transition temperature T c of greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) causing an electric current to flow in the superconductor element. 

CLAIM 150 (Previously Presented) The superconductive apparatus according to claim 

149 in which the copper-oxide compound of the superconductive composition includes 
at least one rare-earth or rare-earth-like element and at least one alkaline-earth 
element. 

CLAIM 1 51 (Previously Presented) The superconductive apparatus according to claim 

150 in which the rare-earth or rare-earth-like element is lanthanum. 

CLAIM 152 (Previously Presented) The superconductive apparatus according to claim 
150 in which the alkaline-earth element is barium. 

CLAIM 153 (Previously Presented) The superconductive apparatus according to claim 
149 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 154 (Previously Presented) The superconductive apparatus according to claim 
153 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 



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CLAIM 155 (Previously Presented) The superconductive apparatus according to claim 
154 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 

CLAIM 156 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the copper-oxide compound including at 
least one rare-earth or rare-earth-like element and at least one alkaline-earth element, 
the composition having a superconductive/resistive-transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p=0 , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 157 (Previously Presented) The superconductive apparatus according to claim 
156 in which the rare-earth or rare-earth-like element is lanthanum. 

CLAIM 158 (Previously Presented) The superconductive apparatus according to claim 
156 in which the alkaline-earth element is barium. 



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CLAIM 159 (Previously Presented) The superconductive apparatus according to claim 
156 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 160 (Previously Presented) The superconductive apparatus according to claim 

159 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 

CLAIM 161 (Previously Presented) The superconductive apparatus according to claim 

160 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 

CLAIM 162 (Previously Presented) An apparatus comprising copper oxide having a 
phase therein which exhibits a superconducting state at a critical temperature greater 
than or equal to 26°K; 

a temperature controller maintaining the temperature of said material at a temperature 
less than said critical temperature to produce said superconducting state in said phase; 

a current source passing an electrical supercurrent through said copper oxide while it is 
in said superconducting state; 

said copper oxide includes at least one element selected from the group consisting of a 
Group II A element, a rare earth element and a Group III B element. 

CLAIM 163 (Previously Presented) An apparatus comprising: 

a composition comprising copper, oxygen and any element selected from the group . 
consisting of a Group II A element, a rare earth element and a Group III B element, 
where said composition is a mixed copper oxide having a non-stoichiometric amount of 



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oxygen therein and exhibiting a superconducting state at a temperature greater than or 
equal to 26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 164 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state; 

a current source passing an electrical current through said composition while said 
composition is in said superconductive state; and 

said composition including a copper oxide and an element selected from the group 
consisting of Group II A element, a rare earth element and a Group III B element. 

CLAIM 165 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the composition having a superconductive 
transition temperature T c of greater than or equal to 26°K, said superconductive 



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composition includes at least one element selected from the group consisting of a 
Group II A element, a rare earth element; and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 166 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the copper-oxide compound including at 
least one element selected from the group consisting of a Group II A element, a rare 
earth element and a Group III B element, the composition having a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p = 0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 
CLAIM 167 (Previously Presented) An apparatus comprising: 



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a copper oxide having a phase therein which exhibits a superconducting state at a 
critical temperature greater than or equal to 26°K; 

a temperature controller maintaining the temperature of said material at a temperature 
less than said critical temperature to produce said superconducting state in said phase; 

a current source passing an electrical supercurrent through said copper oxide while it is 
in said superconducting state; 

said copper oxide includes an element selected from the group consisting of a Group II 
A element and at least one element selected from the group consisting of a rare earth 
element and a Group III B element. 

CLAIM 168 (Previously Presented) An apparatus comprising; 

a composition including copper, oxygen and an element selected from the group 
consisting of at least one Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group III B element, where said 
composition is a mixed copper oxide having a non-stoichiometric amount of oxygen 
therein and exhibiting a superconducting state at a temperature greater than or equal to 
26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 169 (Previously Presented) An apparatus comprising: 



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a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state; 

a current source passing an electrical current through said composition while said 
composition is in said superconductive state; and 

said composition including a copper oxide and at least one element selected from the 
group consisting of Group II A and at least one element selected from the group 
consisting of a rare earth element and a Group 1MB element. 

CLAIM 170 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the composition having a superconductive 
transition temperature T c of greater than or equal to 26°K, said superconductive 
composition includes at least one element selected from the group consisting of a 
Group II A element and at least one element selected from the group consisting of a 
rare earth element and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 171 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the copper-oxide compound including at 
least one element selected from the group consisting of a Group II A element and at 
least one element selected from the group consisting of a rare earth element and a 
Group III B element, the composition having a superconductive/resistive transition 
defining a superconductive-resistive-transition temperature range between an upper 
limit defined by a transition-onset temperature T c and a lower limit defined by an 
effectively-zero-bulk-resistivity intercept temperature T p=0 , the transition-onset 
temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p =oof the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 
CLAIM 172 (Previously Presented) An apparatus comprising: 

a transition metal oxide having a phase therein which exhibits a superconducting state 
at a critical temperature greater than or equal to 26°K; 

a temperature controller maintaining the temperature of said material at a temperature 
less than said critical temperature to produce said superconducting state in said phase; 

a current source passing an electrical supercurrent through said copper oxide while it is 
in said superconducting state; 



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said transitional metal oxide includes at least one element selected from the group 
consisting of a Group II A element and at least one element selected from the group 
consisting of a rare earth element and a Group III B element. 

CLAIM 173 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, oxygen and an element selected from the 
group consisting of a Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group III B element, where said 
composition is a mixed transitional metal oxide formed from said transition metal and 
said oxygen, said mixed transition metal oxide having a non-stoichiometric amount of 
oxygen therein and exhibiting a superconducting state at a temperature greater than or 
equal to 26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 174 (Previously Presented) An apparatus: 

forming a composition exhibiting a superconductive state at a temperature greater than 
or equal to 26°K; 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state; 



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a current source passing an electrical current through said composition while said 
composition is in said superconductive state; and 

said composition including a transitional metal oxide and at least one element selected 
from the group consisting of Group II A element and at least one element selected from 
the group consisting of a rare earth element and a Group III B element. 

CLAIM 175 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound having a layer-type perovskite-like crystal structure, the composition having 
a superconductive transition temperature T c of greater than or equal to 26°K, said 
superconductive composition includes an element selected from the group consisting of 
a Group II A element and at least one element selected from the group consisting of a 
rare earth element and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition T c of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 176 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound having a layer-type perovskite-like crystal structure, the transition metal- 



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oxide compound including at least one element selected from the group consisting of a 
Group II A element and at least one element selected from the group consisting of a 
rare earth element and a Group III B element, the composition having a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T ps =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element, 

CLAIM 177 (Previously Presented) An apparatus comprising: 

a copper oxide having a phase therein which exhibits a superconducting state at a 
critical temperature greater than or equal to 26°K; 

a temperature controller maintaining the temperature of said material at a temperature 
less than said critical temperature to produce said superconducting state in said phase; 

a current source passing an electrical supercurrent through said copper oxide while it is 
in said superconducting state; 

said copper oxide includes at least one Group II A element, and at least one element 
selected from the group consisting of a rare earth element and a Group NIB element. 

CLAIM 178 (Previously Presented) An apparatus comprising: 



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a composition including copper, oxygen, a Group II A element and at least one element 
selected from the group consisting of a rare earth element and a Group 1MB element, 
where said composition is a mixed copper oxide having a non-stoichiometric amount of 
oxygen therein and exhibiting a superconducting state at a temperature greater than or 
equal to 26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 179 (Previously Presented) A structure comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state; 

a current source passing an electrical current through said composition while said 
composition is in said superconductive state; and 

said composition including a copper oxide, a Group II A element, at least one element 
selected from the group consisting of a rare earth element and a Group III B element. 

CLAIM 180 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the composition having a superconductive 
transition temperature T c of greater than or equal to 26°K, said superconductive 
composition includes a Group II A element, and at least one element selected from the 
group consisting of a rare earth element and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 181 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-like crystal structure, the copper-oxide compound including 
Group II A element, and at least one element selected from the group consisting of a 
rare earth element and a Group III B element, the composition having a 
superconductive-resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p *o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 182 (Previously Presented) An apparatus comprising a composition having a 
transition temperature greater than or equal to 26°K ( the composition including a rare 
earth or alkaline earth element, a transition metal element capable of exhibiting 
multivalent states and oxygen, including at least one phase that exhibits 
superconductivity at temperature greater than or equal to 26°K, a temperature controller 
maintaining said composition at said temperature to exhibit said superconductivity and a 
current source passing an electrical superconducting current through said composition 
with said phrase exhibiting said superconductivity. 

CLAIM 183 (Previously Presented) An apparatus comprising a superconducting 
transition metal oxide having a superconductive onset temperature greater than or 
equal to 26°K, a temperature controller maintaining said superconducting transition 
metal oxide at a temperature less than said superconducting onset temperature and a 
current source flowing a superconducting current therein. 

CLAIM 184 (Previously Presented) An apparatus comprising a superconducting copper 
oxide having a superconductive onset temperature greater than or equal to 26°K, a 
temperature controller maintaining said superconducting copper oxide at a temperature 
less than said superconducting onset temperature and a current source flowing a 
superconducting current in said superconducting oxide. 

CLAIM 185 (Previously Presented) An apparatus comprising a superconducting oxide 
composition having a superconductive onset temperature greater than or equal to 26°K f 
a temperature controller maintaining said superconducting copper oxide at a 
temperature less than said superconducting onset temperature and a current source 
flowing a superconducting current therein, said composition comprising at least one 
each of rare earth, an alkaline earth, and copper. 

CLAIM 186 (Previously Presented) An apparatus comprising a superconducting oxide 
composition having a superconductive onset temperature greater than or equal to 26°K, 



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a temperature controller maintaining said superconducting copper oxide at a 
temperature less than said superconducting onset temperature and a current source 
flowing a superconducting electrical current therein, said composition comprising at 
least one each of a Group III B element, an alkaline earth, and copper. 

CLAIM 187 (Previously Presented) An apparatus comprising a superconducting 
electrical current in a transition metal oxide having a T c greater than or equal to 26°K 
and maintaining said transition metal oxide at a temperature less than said T c . 

CLAIM 188 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting current in a copper oxide having a T c greater than or equal to 26°K and 
a temperature controller maintaining said copper oxide at a temperature less than said 
T c . 

CLAIM 189 (Previously Presented) An apparatus comprising: 

a composition of the formula BaLas-xCusOs^y), wherein x is from about 0.75 to about 1 
and y is the oxygen deficiency resulting from annealing said composition at 
temperatures from about 540°C to about 950°C and for times of about 1 5 minutes to 
about 12 hours, said composition having a metal oxide phase which exhibits a 
superconducting state at a critical temperature greater than or equal to 26°K; 

a temperature controller maintaining the temperature of said composition at a 
temperature less than said critical temperature to induce said superconducting state in 
said metal oxide phase; and 

a current source passing an electrical current through said composition while said metal 
oxide phase is in said superconducting state. 

CLAIM 190 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a composition of matter having a T c greater than or 



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equal to 26°K, said composition comprising at least one each of a Group III B element, 
an alkaline earth, and copper oxide and a temperature controller maintaining said 
composition of matter at a temperature less than T c . 

CLAIM 191 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a composition of matter having a T c greater than or 
equal to 26°K, said composition comprising at least one each of a rare earth, alkaline 
earth, and copper oxide and a temperature controller maintaining said composition of 
matter at a temperature less than said T c . 

CLAIM 192 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a composition of matter having a T c greater than or 
equal to 26°K, said composition comprising at least one each of a rare earth, and 
copper oxide and a temperature controller maintaining said composition of matter at a 
temperature less than said T c . 

CLAIM 193 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a composition of matter having a T c greater than or 
equal to 26°K carrying, said composition comprising at least one each of a Group III B 
element, and copper oxide and a temperature controller maintaining said composition of 
matter at a temperature less than said T c . 

CLAIM 194 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a transition metal oxide comprising a T c greater 
than or equal to 26°K and a temperature controller maintaining said transition metal 
oxide at a temperature less than said T c . 

CLAIM 195 (Previously Presented) An apparatus comprising a current source flowing a 
superconducting electrical current in a copper oxide composition of matter comprising a 
T c greater than or equal to 26°K and a temperature controller maintaining said copper 
oxide composition of matter at a temperature less than said T c . 



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CLAIM 196 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, a Group III B element, an alkaline earth 
element, and oxygen, where said composition is a mixed transition metal oxide having a 
non-stoichiometric amount of oxygen therein and exhibiting a superconducting state at a 
temperature greater than or equal to 26°K, 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or, equal to 26°K, and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state, 

CLAIM 197 (Previously Presented) The apparatus of claim 196, where said transition 
metal is copper. 

CLAIM 198 (Previously Presented) A superconductive apparatus for causing electric 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the composition having a 
superconductor transition temperature T c of greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 199 (Previously Presented) The superconductive apparatus according to claim 

198 in which the copper-oxide compound of the superconductive composition includes 
at least one element selected from the group consisting of a rare-earth element, a 
Group III B element and an alkaline-earth element. 

CLAIM 200 (Previously Presented) The superconductive apparatus according to claim 

199 in which the rare-earth is lanthanum. 

CLAIM 201 (Previously Presented) The superconductive apparatus according to claim 
199 in which the alkaline-earth element is barium. 

CLAIM 202 (Previously Presented) The superconductive apparatus according to claim 
198 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 203 (Previously Presented) The superconductive apparatus according to claim 

202 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 

CLAIM 204 (Previously Presented) The superconductive apparatus according to claim 

203 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 

CLAIM 205 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the copper-oxide compound 
including at least one element selected from the group consisting of a rare-earth 



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element, a Group III B element and an alkaline-earth element, the composition having a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 206 (Previously Presented) The superconductive apparatus according to claim 
205 in which said at least one element is lanthanum. 

CLAIM 207 (Previously Presented) The superconductive apparatus according to claim 
205 in which the alkaline-earth element is barium. 

CLAIM 208 (Previously Presented) The superconductive apparatus according to claim 
205 in which the copper-oxide compound of the superconductive composition includes 
mixed valent copper ions. 

CLAIM 209 (Previously Presented) The superconductive apparatus according to claim 

208 in which the copper-oxide compound includes at least one element in a 
nonstoichiometric atomic proportion. 

CLAIM 210 (Previously Presented) The superconductive apparatus according to claim 

209 in which oxygen is present in the copper-oxide compound in a nonstoichiometric 
atomic proportion. 



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CLAIM 21 1 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the composition having a 
superconductive transition temperature T c of greater than or equal to 26°K, said 
superconductive composition includes at least one element selected from the group 
consisting of a Group II A element, a rare earth element; and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 212 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the copper-oxide compound 
including at least one element selected from the group consisting of a Group II A 
element, a rare earth element and a Group III B element, the composition having a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 



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(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 213 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the composition having a 
superconductive transition temperature T c of greater than or equal to 26°K t said 
superconductive composition includes a Group II A element and at least one element 
selected from the group consisting of a rare earth element and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 214 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a substantially layered perovskite crystal structure, the copper-oxide compound 
including a Group II A element and at least one element selected from the group 
consisting of a rare earth element and a Group III B element, the composition having a 



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superconductive/resistive transition defining a superconductive-resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
Tpro, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p =oOf the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 215 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound having a substantially layered perovskite crystal structure, the composition 
having a superconductive transition temperature T c of greater than or equal to 26°K, 
said superconductive composition includes a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition T c of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element, 

CLAIM 216 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound having a substantially layered perovskite crystal structure, the transition 
metal-oxide compound including a Group II A element and at least one element 
selected from the group consisting of a rare earth element and a Group III B element, 
the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p =o, the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 217 (Previously Presented) An apparatus according to claim 182 wherein said 
composition comprises a substantially layered perovskite crystal structure. 

CLAIM 218 (Currently Amended) An apparatus according to claim 183 wherein said 
superconducting tr a ns i stor transition metal oxide comprises a substantially layered 
perovskite crystal structure. 

CLAIM 219 (Previously Presented) An apparatus according to claim 184 wherein said 
superconducting copper oxide comprises a substantially layered perovskite crystal 
structure. 



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CLAIM 220 (Previously Presented) An apparatus according to claim 185 wherein said 
superconducting oxide composition comprises a substantially layered perovskite crystal 
structure. 

CLAIM 221 (Previously Presented) An apparatus according to claim 186 wherein said 
superconducting oxide composition comprises a substantially layered perovskite crystal 
structure. 

CLAIM 222 (Currently Amended) An apparatus according to claim 187 wherein said 
tr a ns i stor transition metal oxide comprises a substantially layered perovskite crystal 
structure. 

CLAIM 223 (Previously Presented) An apparatus according to claim 188 wherein said 
copper oxide comprises a substantially layered perovskite crystal structure. 

CLAIM 224 (Previously Presented) An apparatus according to claim 189 wherein said 
composition comprises a substantially layered perovskite crystal structure. 

CLAIM 225 (Previously Presented) An apparatus according to claim 190 wherein said 
composition of matter comprises a substantially layered perovskite crystal structure. 

CLAIM 226 (Previously Presented) An apparatus according to claim 191 wherein said 
composition of matter comprises substantially layered perovskite crystal structure. 

CLAIM 227 (Previously Presented) An apparatus according to claim 192 wherein said 
composition of matter comprises a substantially layered perovskite crystal structure. 

CLAIM 228 (Previously Presented) An apparatus according to claim 193 wherein said 
composition of matter comprises substantially layered perovskite crystal structure. 



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CLAIM 229 (Currently Amended) An apparatus according to claim 194 wherein said 
tr a n sis tor transition metal oxide comprises substantially layered perovskite crystal 
structure. 

CLAIM 230 (Previously Presented) An apparatus according to claim 195 wherein said 
copper oxide composition comprises substantially layered perovskite crystal structure. 

CLAIM 231 (Previously Presented) An apparatus comprising a composition of matter 
having a T c greater than or equal to 26°K carrying a superconducting current, said 
composition comprising at least one each of a rare earth, an alkaline earth, and copper 
oxide. 

CLAIM 232 (Previously Presented) An apparatus comprising: 

a transition metal oxide comprising a phase therein which exhibits a superconducting 
state at a critical temperature greater than or equal to 26°K, 

a temperature controller for maintaining the temperature of said material at a 
temperature less than said critical temperature to produce said superconducting state in 
said phase, and 

a source of an electrical supercurrent through said transition metal oxide while it is in 
said superconducting state. 

CLAIM 233 (Previously Presented) An apparatus according to claim 232, where said 
transition metal oxide is comprised of a transition metal capable of exhibiting multivalent 
states. 

CLAIM 234 (Previously Presented) An apparatus according to claim 232, where said 
transition metal oxide is comprised of a Cu oxide. 



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CLAIM 235 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, a rare earth or rare earth-like element, an 
alkaline earth element, and oxygen, where said composition is a mixed transition metal 
oxide comprising a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting state at a temperature greater than or equal to 26°K, 

a temperature controller for maintaining said composition in said superconducting state 
at a temperature greater than or equal to 26°K, and 

a source of an electrical current through said composition while said composition is in 
said superconducting state. 

CLAIM 236 (Previously Presented) An apparatus according to claim 235, where said 
transition metal is copper. 

CLAIM 237 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K, a temperature controller for maintaining said composition at a 
temperature greater than or equal to 26°K at which temperature said composition 
exhibits said superconductive state, and 

a source of an electrical current through said composition while said composition is in 
said superconductive state. 

CLAIM 238 (Previously Presented) An apparatus according to claim 237, where said 
composition is comprised of a metal oxide. 

CLAIM 239 (Previously Presented) An apparatus according to claim 238, where said 
composition is comprised of a transition metal oxide. 



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CLAIM 240 (Previously Presented) An apparatus capable of carrying electric current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the composition comprising a 
superconductor transition temperature T c of greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 241 (Previously Presented) An apparatus according to claim 240 in which the 
copper-oxide compound of the superconductive composition includes at least one rare- 
earth or rare-earth-like element and at least one alkaline-earth element. 

CLAIM 242 (Previously Presented) An apparatus according to claim 241 in which the 
rare-earth or rare-earth-like element is lanthanum. 

CLAIM 243 (Previously Presented) An apparatus according to claim 241 in which the 
alkaline^earth element is barium. 

CLAIM 244 (Previously Presented) An apparatus according to claim 240 in which the 
copper-oxide compound of the superconductive composition includes mixed valent 
copper ions. 



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CLAIM 245 (Previously Presented) An apparatus according to claim 244 in which the 
copper-oxide compound includes at least one element in a nonstoichiometric atomic 
proportion. 

CLAIM 246 (Previously Presented) An apparatus according to claim 245 in which 
oxygen is present in the copper-oxide compound in a nonstoichiometric atomic 
proportion. 

CLAIM 247 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the copper-oxide compound 
including at least one rare-earth or rare-earth-like element and at least one alkaline- 
earth element, the composition comprising a superconductive/resistive transition 
defining a superconductive/resistive-transition temperature range between an upper 
limit defined by a transition-onset temperature T c and a lower limit defined by an 
effectively-zero-bulk-resistivity intercept temperature T p =o , the transition-onset 
temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 248 (Previously Presented) An apparatus according to claim 247 in which the 
rare-earth or rare-earth-like element is lanthanum. 



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CLAIM 249 (Previously Presented) An apparatus according to claim 247 in which the 
alkaline-earth element is barium. 

CLAIM 250 (Previously Presented) An apparatus according to claim 247 in which the 
copper-oxide compound of the superconductive composition includes mixed valent 
copper ions. 

CLAIM 251 (Previously Presented) An apparatus according to claim 250 in which the 
copper-oxide compound includes at least one element in a nonstoichiometric atomic 
proportion. 

CLAIM 252 (Previously Presented) An apparatus according to claim 251 in which 
oxygen is present in the copper-oxide compound in a nonstoichiometric atomic 
proportion. 

CLAIM 253 (Previously Presented) An apparatus comprising: 

a copper oxide comprising a phase therein which exhibits a superconducting state at a 
critical temperature greater than or equal to 26°K; 

a temperature controller for maintaining the temperature of said material at a 
temperature less than said critical temperature to produce said superconducting state in 
said phase; 

a source of an electrical supercurrent through said copper oxide while it is in said 
superconducting state; 

said copper oxide includes at least one element selected from the group consisting of a 
Group II A element, a rare earth element and a Group III B element 

CLAIM 254 (Previously Presented) An apparatus comprising: 



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a composition including copper, oxygen and an element selected from the group 
consisting of a Group II A element, a rare earth element and a Group III B element, 
where said composition is a mixed copper oxide comprising a non-stoichiometric 
amount of oxygen therein and exhibiting a superconducting state at a temperature 
greater than or equal to 26°K; 

a temperature controller for maintaining said composition in said superconducting state 
at a temperature greater than or equal to 26°K; and 

a source of an electrical current through said composition while said composition is in 
said superconducting state. 

CLAIM 255 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature controller for maintaining said composition at a temperature greater than 
or equal to 26°K at which temperature said composition exhibits said superconductive 
state; 

a source of an electrical current through said composition while said composition is in 
said superconductive state; and 

said composition including a copper oxide and an element selected from the group 
consisting of Group II A element, a rare earth element and a Group III B element. 

CLAIM 256 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the composition comprising a 
superconductive transition temperature T c of greater than or equal to 26°K, said 
superconductive composition includes at least one element selected from the group 
consisting of a Group II A element, a rare earth element; and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 257 (Previously Presented) An apparatus capable of carrying an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the copper-oxide compound 
including at least one element selected from the group consisting of a Group II A 
element, a rare earth element and a Group III B element, the composition comprising a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 



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(c) a source of an electric current to flow in the superconductor element. 

CLAIM 258 (Previously Presented) An apparatus comprising; 

a copper oxide comprising a phase therein which exhibits a superconducting state at a 
critical temperature greater than or equal to 26°K; 

a temperature controller for maintaining the temperature of said material at a 
temperature less than said critical temperature to produce said superconducting state in 
said phase; 

a source of an electrical supercurrent through said copper oxide while it is in said 
superconducting state; 

said copper oxide includes at least one element selected from the group consisting of a 
Group II A element and at least one element selected from the group consisting of a 
rare earth element and a Group III B element. 

CLAIM 259 (Previously Presented) An apparatus comprising: 

a composition including copper, oxygen and an element selected from the group 
consisting of at least one Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group III B element, where said 
composition is a mixed copper oxide comprising a non-stoichiometric amount of oxygen 
therein and exhibiting a superconducting state at a temperature greater than or equal to 
26°K; 

a temperature for maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 



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a source of an electrical current through said composition while said composition is in 
said superconducting state. 

CLAIM 260 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature for maintaining said composition at a temperature greater than or equal 
to 26°K at which temperature said composition exhibits said superconductive state; 

a source of an electrical current through said composition while said composition is in 
said superconductive state; and 

said composition including a copper oxide and at least one element selected from the 
group consisting of Group II A and at least one element selected from the group 
consisting of a rare earth element and a Group 1MB element. 

CLAIM 261 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K 1 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the composition comprising a 
superconductive transition temperature T c of greater than or equal to 26°K, said 
superconductive composition includes at least one element selected from the group 
consisting of a Group II A element and at least one element selected from the group 
consisting of a rare earth element and a Group III B element; 



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(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 262 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the copper-oxide compound 
including at least one element selected from the group consisting of a Group II A 
element and at least one element selected from the group consisting of a rare earth 
element and a Group III B element, the composition comprising a 
superconductive/resistive transition defining a superconductive-resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
Tp^o, the transition-onset terrlperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 263 (Previously Presented) An apparatus comprising: 

a transition metal oxide comprising a phase therein which exhibits a superconducting 
state at a critical temperature greater than or equal to 26°K; 



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a temperature controller for maintaining the temperature of said material at a 
temperature less than said critical temperature to produce said superconducting state in 
said phase; 

a source of an electrical supercurrent through said transition metal oxide while it is in 
said superconducting state; 

said transitional metal oxide includes at least one element selected from the group 
consisting of a Group II A element and at lest one element selected from the group 
consisting of a rare earth element and a Group III B element. 

CLAIMS 264 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, oxygen and an element selected from the 
group consisting of at least one Group II A element and at least one element selected 
from the group consisting of a rare earth element and a Group III B element, where said 
composition is a mixed transitional metal oxide formed from said transition metal and 
said oxygen, said mixed transition metal oxide comprising a non-stoichiometric amount 
of oxygen therein and exhibiting a superconducting state at a temperature greater than 
or equal to 26°K; 

a temperature controller for maintaining said composition in said superconducting state 
at a temperature greater than or equal to 26°K; and 

a source of an electrical current through said composition while said composition is in 
said superconducting state. 

CLAIM 265 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 



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a temperature controller for maintaining said composition at a temperature greater than 
or equal to 26°K at which temperature said composition exhibits said superconductive 
state; 

a source of an electrical current through said composition while said composition is in 
said superconductive state; and 

said composition including a transitional metal oxide and at least one element selected 
from the group consisting of Group II A element and at least one element selected from 
the group consisting of a rare earth element and a Group NIB element. 

CLAIM 266 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound comprising a layer-type perovskite-like crystal structure, the composition 
comprising a superconductive transition temperature T c of greater than or equal to 26°K> 
said superconductive composition includes at least one element selected from the 
group consisting of a Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition T c of 
the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 267 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a layer-type perovskite-like crystal structure, the transition metal- 
oxide compound including at least one element selected from the group consisting of a 
Group II A element and at least one element selected from the group consisting of a 
rare earth element and a Group III B element, the composition comprising a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p * 0) the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 
CLAIM 268 (Previously Presented) An apparatus comprising: 

a copper oxide comprising a phase therein which exhibits a superconducting state at a 
critical temperature greater than or equal to 26°K; 

a temperature controller for maintaining the temperature of said material at a 
temperature less than said critical temperature to produce said superconducting state in 
said phase; 

a source for an electrical supercurrent through said copper oxide while it is in said 
superconducting state; 



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said copper oxide includes at least one element selected from group consisting of a 
Group II A element, at least one element selected from the group consisting of a rare 
earth element and at least one element selected from the group consisting of a Group III 
B element. 

CLAIM 269 (Previously Presented) An apparatus comprising: 

a composition including copper, oxygen and an element selected from the group 
consisting of at least one Group II A element and at least one element selected from the 
group consisting of a rare earth element at least one element selected from the group 
consisting of a Group III B element, where said composition is a mixed copper oxide 
comprising a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting state at a temperature greater than or equal to 26°K; 

a temperature controller for maintaining said composition in said superconducting state 
at a temperature greater than or equal to 26°K; and 

a source of an electrical current through said composition while said composition is in 
said superconducting state. 

CLAIM 270 (Previously Presented) An apparatus comprising: 

a composition exhibiting a superconductive state at a temperature greater than or equal 
to 26°K; 

a temperature controller for maintaining said composition at a temperature greater than 
or equal to 26°K at which temperature said composition exhibits said superconductive 
state; 



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a source of an electrical current through said composition while said composition is in 
said superconductive state; and 

said composition including a copper oxide and at least one element selected from the 
group consisting of Group II A element, at least one element selected from the group 
consisting of a rare earth element and at least one element selected from the group 
consisting of a Group III B element. 

CLAIM 271 (Previously Presented) An apparatus for causing an electric-current flow in 
a superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the composition comprising a 
superconductive transition temperature T c of greater than or equal to 26°K, said 
superconductive composition includes at least one element selected from the group 
consisting of a Group II A element, at least one element selected from the group 
consisting of a rare earth element and at least one element selected from the group 
consisting of a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 272 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 



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comprising a layer-type perovskite-like crystal structure, the copper-oxide compound 
including at least one element selected from the group consisting of a group II A 
element, at least one element selected from the group consisting of a rare earth 
element and at least one element selected from the group consisting of a Group III B 
element, the composition comprising a superconductive-resistive transition temperature 
defining a superconductive/resistive-transition temperature range between an upper 
limit defined by a transition-onset temperature T c and a lower limit defined by an 
effectively-zero-bulk-resistivity intercept temperature T p=0 < the transition-onset 
temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 273 (Previously Presented) An apparatus comprising a composition comprising 
a transition temperature greater than or equal to 26°K, the composition including a rare 
earth or alkaline earth element, a transition metal element capable of exhibiting 
multivalent states and oxygen, including at least one phase that exhibits 
superconductivity at temperature greater than or equal to 26°K, a temperature controller 
for maintaining said composition at said temperature to exhibit said superconductivity 
and a source of an electrical superconducting current through said composition with 
said phrase exhibiting said superconductivity. 

CLAIM 274 (Previously Presented) An apparatus comprising providing a 
superconducting transition metal oxide comprising a superconductive onset temperature 
greater than or equal to 26°K, a temperature controller for maintaining said 
superconducting transition metal oxide at a temperature less than said superconducting 
onset temperature and a source of a superconducting current therein. 



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CLAIM 275 (Previously Presented) An apparatus comprising a superconducting copper 
oxide comprising a superconductive onset temperature greater than or equal to 26°K, a 
temperature controller for maintaining said superconducting copper oxide at a 
temperature less than said superconducting onset temperature and a source of a 
superconducting current in said superconducting oxide. 

CLAIM 276 (Previously Presented) An apparatus comprising a superconducting oxide 
composition comprising a superconductive onset temperature greater than or equal to 
26°K , a temperature controller for maintaining said superconducting copper oxide at a 
temperature less than said superconducting onset temperature and a source of a 
superconducting current therein, said composition comprising at least one each of rare 
earth, ah alkaline earth, and copper, 

CLAIM 277 (Previously Presented) An apparatus comprising a superconducting oxide 
composition comprising a superconductive onset temperature greater than or equal to 
26°K, a temperature controller for maintaining said superconducting copper oxide at a 
temperature less than said superconducting onset temperature and a source of a 
superconducting electrical current therein, said composition comprising at least one 
each of a Group III B element, an alkaline earth, and copper. 

CLAIM 278 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a transition metal oxide comprising a T c greater 
than or equal to 26°K and a temperature controller for maintaining said transition metal 
oxide at a temperature less than said T c , 

CLAIM 279 (Previously Presented) An apparatus comprising a source of a 
superconducting current in a copper oxide comprising a T c greater than or equal to 26°K 
and a temperature controller for maintaining said copper oxide at a temperature less 
than said T c . 

CLAIM 280 (Previously Presented) An apparatus comprising: 



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a composition of the formula Ba x Lax-5, Cu 5 Oy, wherein x is from about 075 to about 1 
and y is the oxygen deficiency resulting from annealing said composition at 
temperatures from about 540°C to about 950°C and for times of about 15 minutes to 
about 12 hours, said composition comprising a metal oxide phase which exhibits a 
superconducting state at a critical temperature greater than or equal to 26°K; 

a temperature controller for maintaining the temperature of said composition at a 
temperature less than said critical temperature to induce said superconducting state in 
said metal oxide phase; and 

a source of an electrical current through said composition while said metal oxide phase 
is in said superconducting state. 

CLAIM 281 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a composition of matter comprising a T c greater 
than or equal to 26°K, said composition comprising at least one each of a III B element, 
an alkaline earth, and copper oxide and a temperature controller for maintaining said 
composition of matter at a temperature less than T c . 

CLAIM 282 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a composition of matter comprising a T c greater 
than or equal to 26°K, said composition comprising at least one each of a rare earth, 
alkaline earth, and copper oxide and a temperature controller for maintaining said 
composition of matter at a temperature less than said T c . 

CLAIM 283 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a composition of matter comprising a T c greater 
than or equal to 26°K, said composition comprising at least one each of a rare earth, 
and copper oxide and a temperature controller for maintaining said composition of 
matter at a temperature less than said T c . 



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CLAIM 284 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a composition of matter comprising a T c greater 
than or equal to 26°K carrying, said composition comprising at least one each of a III B 
element, and copper oxide and a temperature controller for maintaining said 
composition of matter at a temperature less than said T c . 

CLAIM 285 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a transition metal oxide comprising a T c greater 
than or equal to 26°K and a temperature controller for maintaining said transition metal 
oxide at a temperature less than said T c . 

CLAIM 286 (Previously Presented) An apparatus comprising a source of a 
superconducting electrical current in a copper oxide composition of matter comprising a 
T c greater than or equal to 26°K and a temperature controller for maintaining said 
copper oxide composition of matter at a temperature less than said T c . 

CLAIM 287 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, a group IIIB element, an alkaline earth 
element, and oxygen, where said composition is a mixed transition metal oxide 
comprising a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting state at a temperature greater than or equal to 26°K, 

a temperature controller for maintaining said composition in said superconducting state 
at a temperature greater than or equal to 26°K, and 

a source of an electrical current through said composition while said composition is in 
said superconducting state. 



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CLAIM 288 (Previously Presented) An apparatus according to claim 287, where said 
transition metal is copper. 

CLAIM 289 (Previously Presented) An apparatus for causing electric current flow in a 
superconductive state at a temperature greater than or equal to 26°K> comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the composition 
comprising a superconductor transition temperature T c of greater than or equal to 26°K; 

b) a temperature controller for maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 290 (Previously Presented) An apparatus according to claim 289 in which the 
copper-oxide compound of the superconductive composition includes at least one 
element selected from the group consisting of a rare-earth element and a Group III B 
element and at least one alkaline-earth element. 

CLAIM 291 (Previously Presented) An apparatus according to claim 290 in which the 
rare-earth or element is lanthanum. 

CLAIM 292 (Previously Presented) An apparatus according to claim 290 in which the 
alkaline-earth element is barium. 

CLAIM 293 (Previously Presented) An apparatus according to claim 289 in which the 
copper-oxide compound of the superconductive composition includes mixed valent 
copper ions. 



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CLAIM 294 (Previously Presented) An apparatus according to claim 293 in which the 
copper-oxide compound includes at least one element in a nonstoichiometric atomic 
proportion. 

CLAIM 295 (Previously Presented) An apparatus according to claim 294 in which 
oxygen is present in the copper-oxide compound in a nonstoichiometric atomic 
proportion. 

CLAIM 296 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the copper-oxide 
compound including at least one element selected from the group consisting of a rare- 
earth element and a Group 1MB element and at least one alkaline-earth element, the 
composition comprising a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p=0) the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 297 (Previously Presented) An apparatus according to claim 296 in which said 
at least one element is lanthanum. 



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CLAIM 298 (Previously Presented) An apparatus according to claim 296 in which the 
alkaline-earth element is barium, 

CLAIM 299 (Previously Presented) An apparatus according to claim 296 in which the . 
copper-oxide compound of the superconductive composition includes mixed valent 
copper ions. 

CLAIM 300 (Previously Presented) An apparatus according to claim 299 in which the 
copper-oxide compound includes at least one element in a nonstoichiometric atomic 
proportion. 

CLAIM 301 (Previously Presented) An apparatus according to claim 300 in which 
oxygen is present in the copper-oxide compound in a nonstoichiometric atomic 
proportion. 

CLAIM 302 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the composition 
comprising a superconductive transition temperature T c of greater than or equal to 26°K t 
said superconductive composition includes at least one element selected from the 
group consisting of a Group II A element, a rare earth element; and a Group III B 
element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 303 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the copper-oxide 
compound including at least one element selected from the group consisting of a Group 
II A element, a rare earth element and a Group III B element, the composition 
comprising a superconductive/resistive transition defining a superconductive/resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 
temperature T p = 0 , the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p *o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 304 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the composition 
comprising a superconductive transition temperature T c of greater than or equal to 
26°K, said superconductive composition includes at least one element selected from the 
group consisting of a Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group III B element; 



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(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 305 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a substantially layered perovskite crystal structure, the copper-oxide 
compound including at least one element selected from the group consisting of a Group 
II A element and at least one element selected from the group consisting of a rare earth 
element and a Group III B element, the composition comprising a 
superconductive/resistive transition defining a superconductive-resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature Tc 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p =o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 306 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 



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compound comprising a substantially layered perovskite crystal structure, the 
composition comprising a superconductive transition temperature T c of greater than or 
equal to 26°K, said superconductive composition includes at least one element selected 
from the group consisting of a Group II A element and at least one element selected 
from the group consisting of a rare earth element and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition T c of 
the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 307 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a substantially layered perovskite crystal structure, the transition 
metal-oxide compound including at least one element selected from the group 
consisting of a Group II A element and at least one element selected from the group 
consisting of a rare earth element and a Group III B element, the composition 
comprising a superconductive/resistive transition defining a superconductive/resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 
temperature T p =o, the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 



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(c) a source of an electric current to flow in the superconductor element. 

CLAIM 308 (Previously Presented) An apparatus according to claim 273 wherein said 
composition comprises a substantially layered perovskite crystal structure. 

CLAIM 309 (Currently Amended) An apparatus according to claim 274 wherein said 
superconducting trans is tor transition metal oxide comprises a substantially layered 
perovskite crystal structure, 

CLAIM 310 (Previously Presented) An apparatus according to claim 275 wherein said 
superconducting copper oxide comprises a substantially layered perovskite crystal 
structure. 

CLAIM 31 1 (Previously Presented) An apparatus according to claim 276 wherein said 
superconducting oxide composition comprises a substantially layered perovskite crystal 
structure. 

CLAIM 312 (Previously Presented) An apparatus according to claim 277 wherein said 
superconducting oxide composition comprises a substantially layered perovskite crystal 
structure. 

CLAIM 313 (Currently Amended) An apparatus according to claim 278 wherein said 
trans i stor transition metal oxide comprises a substantially layered perovskite crystal 
structure. 

CLAIM 314 (Previously Presented) An apparatus according to claim 279 wherein said 
copper oxide comprises a substantially layered perovskite crystal structure. 

CLAIM 315 (Previously Presented) An apparatus according to claim 280 wherein said 
composition comprises a substantially layered perovskite crystal structure. 



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CLAIM 316 (Previously Presented) An apparatus according to claim 281 wherein said 
composition of matter comprises a substantially layered perovskite crystal structure. 

CLAIM 317 (Previously Presented) An apparatus according to claim 282 wherein said 
composition of matter comprises substantially layered perovskite crystal structure. 

CLAIM 318 (Previously Presented) An apparatus according to claim 283 wherein said 
composition of matter comprises a substantially layered perovskite crystal structure. 

CLAIM 319 (Previously Presented) An apparatus according to claim 284 wherein said 
composition of matter comprises substantially layered perovskite crystal structure. 

CLAIM 320 (Currently Amended) An apparatus according to claim 285 wherein said 
transistor transition metal oxide comprises substantially layered perovskite crystal 
structure. 

CLAIM 321 (Previously Presented) An apparatus according to claim 286 wherein said 
copper oxide composition comprises substantially layered perovskite crystal structure. 

CLAIM 322 (Previously Presented) A superconductive combination according to anyone 
of claims 84 or 85, wherein said mixed transition metal oxide can be made according to 
known principles of ceramic science. 

CLAIM 323 (Previously Presented) An apparatus according to anyone of claims 86, 87, 
144, 146, 147, 163, 164, 168, 169, 173, 174, 178, 182, 189, 196, 197, 214, 224, 235, 
236, 237, 239, 254, 255, 259, 260, 264, 265 or 273, wherein said composition can be 
made according to known principles of ceramic science. 

CLAIM 324 (Previously Presented) A combination according to anyone of claims 91 , 92 
or 36 to 39, wherein said composition can be made according to known principles of 
ceramic science. 



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CLAIM 325 (Previously Presented) A superconductive apparatus according to anyone . 
of claims 1 to 11, 33 to 35, 66 to 68, 109, 130, 361-366 or 370, wherein said composition 
can be made according to known principles of ceramic science. 

CLAIM 326 (Previously Presented) An apparatus according to anyone of claims 93 to 
95 or 138, wherein said mixed copper oxide can be made according to known principles 
of ceramic science. 

CLAIM 327 (Previously Presented) A combination according to anyone of claims 64 or 
135, wherein said mixed copper oxide can be made according to known principles of 
ceramic science. 

CLAIM 328 (Previously Presented) A superconductive apparatus according to anyone 
of claims 48 to 52, 96 to 108, 198 to 204, 371 , 383 or 384, wherein said 
superconductive composition can be made according to known principles of ceramic 
science. 

CLAIM 329 (Previously Presented) A superconductive combination according to anyone 
of claims 12 to 23, 110, 131, 132 or 367-370, wherein said superconductive composition 
can be made according to known principles of ceramic science. 

CLAIM 330 (Previously Presented) An apparatus according to anyone of claims 185 or 
220, wherein said superconductive composition can be made according to known 
principles of ceramic science. 

CLAIM 331 (Previously Presented) A device according to claim 111, wherein said 
superconductive transition metal oxide can be made according to known principles of 
ceramic science. 



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CLAIM 332 (Previously Presented) An apparatus according to anyone of claims 183, 
217, 218, 274 or 309, wherein said superconductive transition metal oxide can be made 
according to known principles of ceramic science. 

CLAIM 333 (Previously Presented) A device according to claim 112, wherein said 
superconductive copper oxide can be made according to known principles of ceramic 
science. 

CLAIM 334 (Previously Presented) An apparatus according to anyone of claims 275, 
276, 310 or 31 1 , wherein said superconductive copper oxide can be made according to 
known principles of ceramic science. 

CLAIM 335 (Previously Presented) A device according to claim 113, wherein said 
superconductive oxide composition can be made according to known principles of 
ceramic science. 

CLAIM 336 (Previously Presented) An apparatus according to anyone of claims 186, 
221, 272, 312 or 413, wherein said superconductive oxide composition can be made 
according to known principles of ceramic science. 

CLAIM 337 (Previously Presented) A device according to anyone of claims 1 14 or 1 17, 
wherein said transition metal oxide can be made according to known principles of 
ceramic science. 

CLAIM 338 (Previously Presented) An apparatus according to anyone of claims 24 to 
26, 60 to 63, 1 16, 141 to 143, 172, 187, 222, 232 to 234, 263, 278, 285, 287, 288, 313 
or 320, wherein said transition metal oxide can be made according to known principles 
of ceramic science. 



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CLAIM 339 (Previously Presented) A superconductive apparatus according to anyone 
of claims 27-32, 132 or 370, wherein said transition metal oxide can be made according 
to known principles of ceramic science. 

CLAIM 340 (Previously Presented) An invention according to claim 118, wherein said 
transition metal oxide can be made according to known principles of ceramic science. 

CLAIM 341 (Previously Presented) A transition metal oxide device according to claim 
128, wherein said transition metal oxide can be made according to known principles of 
ceramic science. 

CLAIM 342 (Previously Presented) An apparatus according to anyone of claims 40 to 
45, wherein said superconductor can be made according to known principles of ceramic 
science. 

CLAIM 343 (Previously Presented) A device according to anyone of claims 1 1 9 or 1 21 , 
wherein said copper oxide can be made according to known principles of ceramic 
science. 

CLAIM 344 (Previously Presented) An apparatus according to claim 120, wherein said 
copper oxide can be made according to known principles of ceramic science. 

CLAIM 345 (Previously Presented) An invention according to claim 122, wherein said 
copper oxide can be made according to known principles of ceramic science. 

CLAIM 346 (Previously Presented) A superconductive apparatus according to claim 
123, wherein said copper oxide can be made according to known principles of ceramic 
science. 



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CLAIM 347 (Previously Presented) A copper oxide device according to claim 129, 
wherein said copper oxide can be made according to known principles of ceramic 
science. 

CLAIM 348 (Previously Presented) An apparatus according to anyone of claims 162, 
167, 177, 188, 223, 253, 258, 268, 269, 270, 279 or 314, wherein said copper oxide can 
be made according to known principles of ceramic science. 

CLAIM 349 (Previously Presented) A combination according to claim 57, wherein said 
superconductive oxide can be made according to known principles of ceramic science. 

CLAIM 350 (Previously Presented) A combination according to anyone of claims 58 or 
373, wherein said copper oxide conductor can be made according to known principles 
of ceramic science. 

CLAIM 351 (Previously Presented) A combination according to claim 59, wherein said 
ceramic-like material can be made according to known principles of ceramic science. 

CLAIM 352 (Previously Presented) A superconductive combination according to anyone 
of claims 69 to 71 or 134, wherein said superconductive composition can be made 
according to known principles of ceramic science. 

CLAIM 353 (Previously Presented) A superconductive apparatus according to anyone 
of claims 139, 140, 149 to 155, 156 to 161, 170, 171, 175, 176, 180, 181, 205 to 216, 
387-393, or 396-401 , wherein said superconductive composition can be made 
according to known principles of ceramic science. 

CLAIM 354 (Previously Presented) An apparatus according to anyone of claims 165, 
166, 185, 220, 240 to 246, 247 to 252, 261 , 262, 289, 290 to 301 , 394, 395, 402^06, 
409 or 410, wherein said superconductive composition can be made according to 
known principles of ceramic science. 



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CLAIM 355 (Previously Presented) A combination according to anyone of claims 77 to 
81, 186 T 379 or 380, wherein said mixed copper oxide composition can be made 
according to known principles of ceramic science. 

CLAIM 356 (Previously Presented) A device according to anyone of claims 124 to 127, 
wherein said composition of matter can be made according to known principles of 
ceramic science. 

CLAIM 357 (Previously Presented) An apparatus according to anyone of claims 190 to 
194, 225 to 229, 231, 256, 257, 266, 267, 271, 272, 281 to 284, 31 7 to 319, 407, or 411 
to 413, wherein said composition of matter can be made according to known principles 
of ceramic science. 

CLAIM 358 (Previously Presented) An apparatus according to anyone of claims 186 or 
221, wherein said superconductive oxide composition can be made according to known 
principles of ceramic science. 

CLAIM 359 (Previously Presented) An apparatus according to anyone of claims 1 95 or 
230, wherein said copper oxide composition can be made according to known principles 
of ceramic science. 

CLAIM 360 (Previously Presented) An apparatus according to anyone of claims 286 or 
321 , wherein said copper oxide composition can be made according to known principles 
of ceramic science. 

CLAIM 361 (Currently Amended) A superconducting apparatus comprising a 
composition having a transition temperature greater than or equal to 26°K, the 
composition including a rare earth or an element comprising a rare earth characteristic, 
a transition metal element capable of exhibiting multivalent states and oxygen, including 
at least one phase that exhibits superconductivity at temperature greater than or equal 



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to 26°K, a means -temperature controller for maintaining said composition at said 
temperature to exhibit said superconductivity and m e an s a current source for passing 
an electrical superconducting current through said composition while exhibiting said 
superconductivity. 

CLAIM 362 (Previously Presented) The superconducting apparatus of claim 361 , further 
including an alkaline earth element substituted for at least one atom of said rare earth or 
element comprising a rare earth characteristic in said composition. 

CLAIM 363 (Previously Presented) The superconducting apparatus of claim 362, where 
said rare earth or element comprising a rare earth characteristic is selected from the 
group consisting of La, Nd, and Ce. 

CLAIM 364 (Previously Presented) The superconducting apparatus of claim 361 , where 
said phase is crystalline with a structure comprising a perovskite characteristic. 

CLAIM 365 (Previously Presented) The superconducting apparatus of claim 362, where 
said phase is crystalline with a structure comprising a perovskite characteristic. 

CLAIM 366 (Previously Presented) The superconducting apparatus of claim 361 , where 
said phase exhibits a crystalline structure comprising a layered characteristic. 

CLAIM 367 (Previously Presented) The combination of claim 15, where said additional 
element is a rare earth or an element comprising a rare earth characteristic. 

CLAIM 368 (Previously Presented) The combination of claim 12, where said 
composition includes a superconducting phase comprising a perovskite characteristic. 

CLAIM 369 (Previously Presented) The combination of claim 20, where said substituted 
transition metal oxide has a structure comprising a layered characteristic. 



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CLAIM 370 (Previously Presented) The superconducting apparatus of claim 31 1 where 
said crystalline structure comprises a layered characteristic, enhancing the number of 
Jahn-Teller polarons in said composite. 

CLAIM 371 (Previously Presented) The superconductive apparatus of claim 48, where 
said substitutions include a rare earth or an element comprising a rare earth 
characteristic. 

CLAIM 372 (Previously Presented) A superconductive apparatus comprised of a copper 
oxide comprising a crystalline structure comprising a layered characteristic and at least 
one additional element substituted in said crystalline structure, said structure being 
oxygen deficient and exhibiting a superconducting onset temperature greater than or 
equal to 26°K. 

CLAIM 373 (Currently Amended) A combination, comprised of: 

a copper oxide superconductor having a superconductor onset temperature greater 
than about 26°K including an element which results in a mixed valent state in said 
oxide, said oxide being crystalline and comprising a structure comprising a layered 
characteristic, 

meafis a current source for passing a superconducting current through said copper 
oxide while it is maintained at a temperature greater than or equal to 26°K and less than 
said superconducting onset temperature, and 

m ea ns a temperature controller for cooling said copper oxide to a superconductive state 
at a temperature greater than or equal to 26°K and less than said superconducting 
onset temperature, 

CLAIM 374 (Currently Amended) A combination, comprised of: 



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a material comprising a ceramic characteristic comprising an onset of superconductivity 
at an onset temperature greater than or equal to 26°K, 

m e ans a current source for passing a superconducting electrical current through said 
material comprising a ceramic characteristic while said material is maintained at a 
temperature greater than or equal to 26°K and less than said onset temperature, and 

m e ans a temperature controller for cooling said superconducting material having a 
ceramic characteristic to a superconductive state at a temperature greater than or equal 
to 26°K and less than said onset temperature, said material being superconductive at 
temperatures below said onset temperature and a ceramic at temperatures above said 
onset temperature. 

CLAIM 375 (Previously Presented) An apparatus comprising a composition exhibiting 
superconductivity at temperatures greater than or equal to 26°K, said composition being 
a material comprising a ceramic characteristic in the RE-AE-TM-0 system, where RE is 
a rare earth or near rare earth element, AE is an alkaline earth element, TM is a 
multivalent transition metal element having at least two valence states in said 
composition, and O is oxygen, the ratio of the amounts of said transition metal in said 
two valence states being determined by the ratio RE : AE, a source of current for 
passing a superconducting electric current in said transition metal oxide, and a cooling 
apparatus for maintaining said transition metal oxide below said onset temperature and 
at a temperature greater than or equal to 26°K. 

CLAIM 376 (Previously Presented) The combination of claim 71 , where said mixed 
copper oxide further includes a rare earth or an element comprising a rare earth 
characteristic. 

CLAIM 377 (Previously Presented) An apparatus comprising a superconductor having 
a superconducting onset temperature greater than or equal to 26°K, said 
superconductor being made by a method including the steps of: 



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preparing powders of oxygen-containing compounds of a rare earth or rare earth-like 
element, an alkaline earth element, and copper, 

mixing said compounds and firing said mixture to create a mixed copper oxide 
composition including said alkaline earth element and said rare earth or rare earth-like 
element, and 

annealing said mixed copper oxide composition at an elevated temperature less than 
about 950°C in an atmosphere including oxygen to produce a superconducting 
composition having a mixed copper oxide phase exhibiting a superconducting onset 
temperature greater than or equal to 26°K, said superconducting composition 
comprising a crystalline structure comprising a layered characteristic after said 
annealing step. 

CLAIM 378 (Previously Presented) An apparatus comprising a superconductor having a 
superconducting onset temperature greater than or equal to 26°K, said superconductor 
being comprised of a rare earth or an element (RE) comprising a rare earth 
characteristic, an alkaline earth element (AE), copper (CU), and oxygen (O) and having 
the general formula RE-AE-CU-O, said superconductor being made by a method 
comprising the steps of combining said rare earth or element comprising a rare earth 
characteristic, said alkaline earth element and said copper in the presence of oxygen to 
produce a mixed copper oxide including said rare earth or rare earth-like element and 
said alkaline earth element therein, and 

heating said mixed copper oxide to produce a superconductor having a crystalline 
structure comprising a layered characteristic and exhibiting a superconducting onset 
temperature greater than or equal to 26°K the critical transition temperature of said 
superconductor being dependent on the amount of said alkaline earth element therein. 

CLAIM 379 (Currently Amended) A combination, comprising: 



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a mixed copper oxide composition including an alkaline earth element (AE) and a rare 
earth or element (RE) comprising a rare earth characteristic, said composition 
{ comprising a crystalline structure comprising a layered characteristic and multivalent 
oxidation states, said composition exhibiting a substantially zero resistance to the flow 
of electrical current therethrough when cooled to a superconducting state at a 
temperature greater than or equal to 26°K, said mixed copper oxide having a 
superconducting onset temperature greater than or equal to 26°K, and 

e l e ctrica l m e an s a current source for passing an electrical superconducting current 
through said composition when said composition exhibits substantially zero resistance 
at a temperature greater than or equal to 26°K and less than said onset temperature. 

CLAIM 380 (Previously Presented) The combination of claim 379, wherein said 
crystalline structure comprises a perovskite characteristic. 

CLAIM 381 (Previously Presented) An apparatus comprising a superconductor having a 
superconducting onset temperature greater than or equal to 26°K, said superconductor 
being comprised of a rare earth or an element (RE) comprising a rare earth 
characteristic, an alkaline earth element (AE), a transition metal element (TM), and 
Oxygen (0) and having the general formula RE-AE-TM-O, said superconductor being 
made by a method comprising the steps of combining said rare earth or element 
comprising a rare earth characteristic, said alkaline earth element and said transition 
metal element in the presence of oxygen to produce a mixed transition metal oxide 
including said rare earth or element comprising a rare earth characteristic and said 
alkaline earth element therein, and 

heating said mixed transition metal oxide to produce superconductor having a 
crystalline structure comprising a layered characteristic and exhibiting a 
superconducting onset temperature greater than or equal to 26°K, said superconductor 
having a non-stoichiometric amount of oxygen therein. 



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CLAIM 382 (Previously Presented) The apparatus of claim 93, where said copper oxide 
material exhibits a crystalline structure comprising a layered characteristic. 

CLAIM 383 (Currently Amended) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition comprising a copper-oxide compound having a crystal 
structure comprising a perovskite characteristic and a layered characteristic, the 
composition having a superconductor transition temperature T c of greater than or equal 
to 26°K; 

(b) m ea ns a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) m e ans a current source for causing an electric current to flow in the superconductor 
element 

CLAIM 384 (Previously Presented) The superconductive apparatus according to claim 

383 in which the copper-oxide compound of the superconductive composition includes 
at least one rare-earth or element comprising a rare earth characteristic and at least one 
alkaline-earth element. 

CLAIM 385 (Previously Presented) The superconductive apparatus according to claim 

384 in which the rare-earth or element comprising a rare earth characteristic is 
lanthanum. 



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CLAIM 386 (Currently Amended) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one rare-earth or element 
comprising a rare earth characteristic and at least one alkaline-earth element, the 
composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T q = 0l the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) m e ans a temperature controller for maintaining the superconductor element at a 
temperature below the effect ively-zero-bu Ik-resistivity intercept temperature of the 
superconductive composition; and 

( C ) m e ans a current source for causing an electric current to flow in the superconductor 
element. 

CLAIM 387 (Previously Presented) The superconductive apparatus according to claim 
386 in which the rare-earth or an element comprising a rare earth characteristic is 
lanthanum. 

CLAIM 388 (Previously Presented) An apparatus comprising: 

a composition including a transition metal, a rare earth or an element comprising a rare 
earth characteristic, an alkaline earth element, and oxygen, where said composition is a 
mixed transition metal oxide having a non-stoichiometric amount of oxygen therein and 
exhibiting a superconducting state at a temperature greater than or equal to 26°K, 



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a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K, and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 389 (Previously Presented) A superconductive apparatus for causing electric 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition having a superconductor transition temperature T c of 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) causing an electric current to flow in the superconductor element. 

CLAIM 390 (Previously Presented) The superconductive apparatus according to claim 

389 in which the copper-oxide compound of the superconductive composition includes 
at least one rare-earth or an element comprising a rare earth characteristic and at least 
one alkaline-earth element. 

CLAIM 391 (Previously Presented) The superconductive apparatus according to claim 

390 in which the rare-earth or an element comprising a rare earth characteristic is 
lanthanum. 



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CLAIM 392 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one rare-earth or rare- 
earth-like element and at least one alkaline-earth element, the composition having a 
superconductive/resistive-transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
T p = 0l the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T P z 0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 393 (Previously Presented) The superconductive apparatus according to claim 
392 in which the rare-earth or an element comprising a rare earth characteristic is 
lanthanum. 

CLAIM 394 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition having a superconductive transition temperature T c of 



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greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element, a rare earth 
element; and a Group 1MB element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 395 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one element selected from 
the group consisting of a Group II A element, a rare earth element and a Group NIB 
element, the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p = 0l the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 396 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition having a superconductive transition temperature T c of 
greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 397 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one element selected from 
the group consisting of a Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group 1MB element, the composition 
having a superconductive/resistive transition defining a superconductive-resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 



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temperature T p=0 , the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 398 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite characteristic, the composition having a superconductive transition 
temperature T c of greater than or equal to 26°K, said superconductive composition 
includes an element selected from the group consisting of a Group II A element and at 
least one element selected from the group consisting of a rare earth element and a 
Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition T c of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 399 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite characteristic, the transition metal-oxide compound including at least one 
element selected from the group consisting of a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element, the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p = 0 , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 400 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition having a superconductive transition temperature T c of 
greater than or equal to 26°K, said superconductive composition includes a Group II A 
element, and at least one element selected from the group consisting of a rare earth 
element and a Group III B element; 



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(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 401 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including Group II A element, and at least 
one element selected from the group consisting of a rare earth element and a Group III 
B element, the composition having a superconductive-resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p = 0 , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 402 (Previously Presented) An apparatus capable of carrying electric current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 



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(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition comprising a superconductor transition temperature T c of 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 403 (Previously Presented) An apparatus according to claim 402 in which the 
copper-oxide compound of the superconductive composition includes at least one rare- 
earth or an element comprising a rare earth characteristic and at least one alkaline- 
earth element. 

CLAIM 404 (Previously Presented) An apparatus according to claim 403 in which the 
rare-earth or element comprising a rare earth characteristic is lanthanum. 

CLAIM 405 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a layer-type perovskite-like crystal structure, the copper-oxide compound 
comprising at least one rare-earth or element comprising a rare earth characteristic and 
at least one alkaline-earth element, the composition comprising a 
superconductive/resistive transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 



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and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
Tp=o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 406 (Previously Presented) An apparatus according to claim 405 in which the 
rare-earth or element comprising a rare earth characteristic is lanthanum. 

CLAIM 407 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K t 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition comprising a superconductive transition temperature T c 
of greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element, a rare earth 
element; and a Group 1MB element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition;, and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 408 (Previously Presented) An apparatus capable of carrying an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one element selected from 
the group consisting of a Group II A element, a rare earth element and a Group III B 
element, the composition comprising a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature Tp^o, the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effect ively-zero-bu Ik-resistivity intercept temperature Tpo of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 409 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the composition comprising a superconductive transition temperature T c 
of greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element and at least one 



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element selected from the group consisting of a rare earth element and a Group 1MB 
element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 410 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one element selected from 
the group consisting of a Group II A element and at least one element selected from the 
group consisting of a rare earth element and a Group NIB element, the composition 
comprising a superconductive/resistive transition defining a superconductive-resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 
temperature T p=0 , the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 41 1 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite characteristic, the composition comprising a superconductive transition 
temperature T c of greater than or equal to 26°K, said superconductive composition 
includes at least one element selected from the group consisting of a Group II A 
element and at least one element selected from the group consisting of a rare earth 
element and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition T c of 
the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 412 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite characteristic, the transition metal-oxide compound including at least one 
element selected from the group consisting of a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element, the composition comprising a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 



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bulk-resistivity intercept temperature T p = 0] the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 413 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
characteristic, the copper-oxide compound including at least one element selected from 
the group consisting of a group II A element, at least one element selected from the 
group consisting of a rare earth element and at least one element selected from the 
group consisting of a Group III B element, the composition comprising a 
superconductive-resistive transition temperature defining a superconductive/resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 
temperature T p =o, the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 414 (Previously Presented) A superconducting apparatus according to anyone 
of claims 361-365 or 366, wherein said composition can be made according to known 
principles of ceramic science. 

CLAIM 415 (Previously Presented) A superconducting combination according to anyone 
of claims 367, 368 or 369, wherein said composition can be made according to known 
principles of ceramic science. 

CLAIM 416 (Previously Presented) A superconducting apparatus according to anyone 
of claims 370 or 371 , wherein said composition can be made according to known 
principles of ceramic science. 

CLAIM 417 (Previously Presented) A superconducting apparatus according to claim 
372, wherein said copper oxide can be made according to known principles of ceramic 
science. 

CLAIM 418 (Previously Presented) A combination according to claim 373, wherein said 
copper oxide can be made according to known principles of ceramic science. 

CLAIM 419 (Previously Presented) A combination according to claim 374, wherein said 
material can be made by known principles of ceramic science. 

CLAIM 420 (Currently Amended) A apparatu s An apparatus according to claim 375, 
wherein said composition can be made by known principles of ceramic science. 

CLAIM 421 (Previously Presented) A combination according to claim 376, wherein said 
mixed copper oxide can be made by known principles of ceramic science. 

CLAIM 422 (Previously Presented) A combination according to anyone of claims 379 or 
380, wherein said mixed copper oxide can be made by known principles of ceramic 
science. 



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CLAIM 423 (Currently Amended) A apparatu s An apparatus according to claim 382, 
wherein said copper oxide material can be made by known principles of ceramic 
science. 

CLAIM 424 (Previously Presented) A superconductive apparatus according to anyone 
of claims 383, 384, 385, 386, 387 and 389, wherein said composition can be made by 
known principles of ceramic science. 

CLAIM 425 (Currently Amended) A apparatus An apparatus according to claim 388, 
wherein said composition can be made according to known principles of ceramic 
science. 

CLAIM 426 (Previously Presented) A superconductive apparatus according to anyone 
of claims 389 to 400 or 401 , wherein said superconductive composition can be made by 
known principles of ceramic science. 

CLAIM 427 (Currently Amended) A appar a tus An apparatus according to anyone of 
claims 402 to 412 or 413, wherein said superconductive composition can be made by 
known principles of ceramic science. 

CLAIM 428 (Previously Presented) An apparatus capable of carrying electric current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

a superconductive element comprising a superconductive composition, said 
superconductive composition comprising O and at least one element selected from the 
group consisting of Be, Mg, Ca, Sr, Ba, Ra, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, 
Dy, Ho, Er, Tm, Yb, and Lu; and 



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said composition comprising a superconductor transition temperature T c of greater than 
or equal to 26°K. 

CLAIM 429 (Previously Presented) An apparatus according to claim 428, further 
including: 

a temperature controller for maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

a source of an electric current to flow in the superconductor element. 

CLAIM 430 (Previously Presented) An apparatus according to claim 428, wherein said 
composition comprises a substantially layered structure. 

CLAIM 431 (Previously Presented) An apparatus according to claim 429, wherein said 
composition comprises a substantially layered structure. 

CLAIM 432 (Previously Presented) An apparatus according to anyone of claims 428 to 
430 or 431 , wherein said composition comprises a substantially perovskite crystal 
structure. 

CLAIM 433 (Previously Presented) An apparatus according to any one of claims 428 to 
430 or 431 , wherein said composition comprises a perovskite-like structure. 

CLAIM 434 (Previously Presented) An apparatus according to any one of claims 428 to 
430 or 431, wherein said composition comprises a perovskite characteristic. 

CLAIM 435 (Previously Presented) An apparatus according to any one of claims 428 to 
430 or 431 , wherein said composition comprises a perovskite related structure. 



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CLAIM 436 (Previously Presented) An apparatus according to anyone of claims 428 to 
431 or 432, wherein said composition can be made according to known principals of 
ceramic science. 

CLAIM 437 (Previously Presented) An apparatus according to claim 88 wherein said 
composition is an oxide. 

CLAIM 438 (Currently Amended) An apparatus comprising: a means for conducting a 
superconducting current at a temperature greater than or equal to 26°K and a m e ans 
current source for providing an electric current to flow in said means for conducting a 
superconducting current. 

CLAIM 439 (Previously Presented) An apparatus according to claim 438, wherein said 
means for conducting a superconductive current comprises a T c greater than or equal to 
26°K. 

CLAIM 440 (Previously Presented) An apparatus according to claim 438, further 
including a temperature controller for maintaining said means for conducting a 
superconducting current at a said temperature. 

CLAIM 441 (Previously Presented) An apparatus according to anyone of claims 438, 
439 or 440, wherein said means for conducting a superconducting current comprises 
oxygen. 

CLAIM 442 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
one or more of the groups consisting of Be, Mg, Ca t Sr, Ba, Ra, Sc, Y, La, Ce, Pr, Nd, 
Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu 

CLAIM 443 (Previously Presented) An apparatus according to anyone of claims 438, 
439 or 440, wherein said means for conducting a superconducting current comprises 



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one or more of Be, Mg, Ca, Sr, Ba and Ra and one or more of Sc, Y, La, Ce, Pr, Nd, 
Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 444 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a layered structure. 

CLAIM 445 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a substantially perovskite structure. 

CLAIM 446 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a perovskite-like structure. 

CLAIM 447 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a perovskite related structure. 

CLAIM 448 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a structure having a perovskite characteristic. 

CLAIM 449 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a transition metal. 

CLAIM 450 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a copper oxide. 



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CLAIM 451 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
oxygen in a nonstoichiomeric amount. 

CLAIM 452 (Previously Presented) An apparatus according to anyone of claims 438, 
439 and 440, wherein said means for conducting a superconducting current comprises 
a multivalent transition metal. 

CLAIM 453 (Previously Presented) An apparatus according to anyone of claims 438, 
439 or 440, wherein said means for conducting a superconducting current can be made 
according to known principles of ceramic science. 

CLAIM 454 (Previously Presented) An apparatus according to claim 441 , wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 455 (Previously Presented) An apparatus according to claim 442, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 456 (Previously Presented) An apparatus according to claim 443, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 457 (Previously Presented) An apparatus according to claim 444, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 458 (Previously Presented) An apparatus according to claim 445, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 



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CLAIM 459 (Previously Presented) An apparatus according to claim 446, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 460 (Previously Presented) An apparatus according to claim 447, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 461 (Previously Presented) An apparatus according to claim 448, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 462 (Previously Presented) An apparatus according to claim 449, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 463 (Previously Presented) An apparatus according to claim 450, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 464 (Previously Presented) An apparatus according to claim 451, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceram ic science. 

CLAIM 465 (Previously Presented) An apparatus according to claim 452, wherein said 
means for conducting a superconducting current can be made according to known 
principles of ceramic science. 

CLAIM 466 (Currently Amended) An apparatus comprising: 



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a superconductive current carrying element comprising a-T G — 2&- K TV greater than or 
equal to 26°K ; 

said superconductive current carrying element comprises a property selected from one 
or more of the group consisting of a mixed valent oxide, a transition metal, a mixed 
valent transition metal, a perovskite structure, a perovskite-like structure, a perovskite 
related structure, a layered structure, a stoichiomeric or nonstoichiomeric oxygen 
contents and a dopant. 

CLAIM 467 (Currently Amended) An apparatus according to claim 466, wherein said 
superconductive current carrying element is at a temperature greater than or equal to- 
26-~ K26°K . 

CLAIM 468 (Previously Presented) ,An apparatus according to claim 466, further 
including a temperature controller for maintaining said superconductive current carrying 
element at a temperature less than said T c . 

CLAIM 469 (Previously Presented) An apparatus according to anyone of claims 466, 
467 or 468, wherein said superconductive current carrying element comprises one or 
more of the group consisting of Be, Mg, Ca, Sr, Ba, Ra, Sc, Y, La, Ce, Pr, Nd t Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 470 (Previously Presented) An apparatus according to anyone of claims 466, 
467 or 468, wherein said superconductive current carrying element comprises one or 
more of Be, Mg, Ca, Sr, Ba and Ra and one or more of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 471 (Previously Presented) An apparatus according to claim 469, wherein said 
superconductive current carrying element comprises a transition metal. 



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CLAIM 472 (Previously Presented) An apparatus according to claim 470, wherein said 
superconductive current carrying element comprises a transition metal 

CLAIM 473 (Currently Amended) An apparatus according to anyone of claims 466, 
467, or 468, wherein said superconduct i ng superconductive current carrying element 
can be made according to known principles of ceramic science. 

CLAIM 474 (Currently Amended) An apparatus according to of claim 471, wherein said- 
superconduct i ng superconductive current carrying element can be made according to 
known principles of ceramic science. 

CLAIM 475 (Currently Amended) An apparatus according to of claim 472, wherein said- 
s uperconducting superconductive current carrying element can be made according to 
known principles of ceramic science. 

CLAIM 476 (Currently Amended) An apparatus comprising: 

a superconductive current carrying element comprising a-T G — 26— K TV greater than or 
eoual to 26°K ; 

said superconductive current carrying element comprises an oxide, a layered perovskite 
structure or a layered perovskite-like structure and comprises a stoichiomeric or 
nonstoichiomeric oxygen content. 

CLAIM 477 (Currently Amended) An apparatus according to claim 476, wherein said 
superconductive current carrying element is at a temperature greater than or equal to- 
2&- K 26°K . 

CLAIM 478 (Previously Presented) An apparatus according to claim 476, further 
including a temperature controller for maintaining said superconductive current carrying 
element at a temperature less than said T c . 



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CLAIM 479 (Previously Presented) An apparatus according to anyone of claims 476, 
477 or 478, wherein said superconductive current carrying element comprises one or 
more of the group consisting of Be, Mg, Ca, Sr, Ba t Ra, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 480 (Previously Presented) An apparatus according to anyone of claims 476, 
477 or 478, wherein said superconductive current carrying element comprises one or 
more of Be, Mg, Ca, Sr, Ba and Ra and one or more of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 481 (Previously Presented) An apparatus according to claim 479, wherein said 
superconductive current carrying element comprises a transition metal. 

CLAIM 482 (Previously Presented) An apparatus according to claim 480, wherein said 
superconductive current carrying element comprises a transition metal. 

CLAIM 483 (Previously Presented) An apparatus according to claim 476, wherein said 
superconductive current carrying element comprises copper oxide. 

CLAIM 484 (Previously Presented) An apparatus according to anyone of claims 476, 
477 or 478, wherein said superconductive current carrying element can be made 
according to known principles of ceramic science. 

CLAIM 485 (Previously Presented) An apparatus according to claim 479, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 486 (Previously Presented) An apparatus according to claim 480, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 



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CLAIM 487 (Previously Presented) An apparatus according to claim 481 , wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 488 (Previously Presented) An apparatus according to claim 482, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 489 (Previously Presented) An apparatus according to claim 483, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 490 (Previously Presented) An apparatus according to claim 484, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 491 (Previously Presented) An apparatus according to claim 485, wherein said 
superconductive current carrying element can be made according to known principles of 
ceramic science. 

CLAIM 492 (Previously Presented) The superconducting apparatus of claim 361 , where 
said phase is crystalline with a structure comprising a perovskite related structure. 

CLAIM 493 (Previously Presented) The superconducting apparatus of claim 362, where 
said phase is crystalline with a structure comprising a perovskite related structure. 

CLAIM 494 (Previously Presented) The combination of claim 12, where said 
composition includes a superconducting phase comprising a perovskite related 
structure. 



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CLAIM 495 (Previously Presented) The combination of claim 379, wherein said 
crystalline structure comprises a perovskite related structure. 

CLAIM 496 (Currently Amended) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition comprising a copper-oxide compound having a crystal 
structure comprising a perovskite related structure and a layered characteristic, the 
composition having a superconductor transition temperature T c of greater than or equal 
to 26°K; 

(b) -means a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) m e ans a current source for causing an electric current to flow in the superconductor 
element. 

CLAIM 497 (Currently Amended) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one rare-earth or 
element comprising a rare earth characteristic and at least one alkaline-earth element, 
the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 



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bulk-resistivity intercept temperature T q = 0 , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) m e ans a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-buik-resistivity intercept temperature T qJSO of the 
superconductive composition; and 

(c) m ea ns a current source for causing an electric current to flow in the superconductor 
element. 

CLAIM 498 (Previously Presented) A superconductive apparatus for causing electric 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition having a superconductor transition temperature T c of 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) causing an electric current to flow in the superconductor element. 

CLAIM 499 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 



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comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one rare-earth or rare- 
earth-like element and at least one alkaline-earth element, the composition having a 
superconductive/resistive-transition defining a superconductive/resistive-transition 
temperature range between an upper limit defined by a transition-onset temperature T c 
and a lower limit defined by an effectively-zero-bulk-resistivity intercept temperature 
Tp^o, the transition-onset temperature T c being greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p = 0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 500 (Previously Presented) An apparatus for causing electric-current flow in a 
superconductive state at a temperature greater than or equal to 26°K, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition having a superconductive transition temperature T c of 
greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element, a rare earth 
element; and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 501 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one element selected 
from the group consisting of a Group II A element, a rare earth element and a Group III 
B element, the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p=0 , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 502 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition having a superconductive transition temperature T c of 
greater than or equal to 26°K, said superconductive composition includes at least one 
element selected from the group consisting of a Group II A element and at least one 



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element selected from the group consisting of a rare earth element and a Group III B 
element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 503 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one element selected 
from the group consisting of a Group II A element and at least one element selected 
from the group consisting of a rare earth element and a Group III B element, the 
composition having a superconductive/resistive transition defining a superconductive- 
resistive-transition temperature range between an upper limit defined by a transition- 
onset temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity 
intercept temperature T p =o , the transition-onset temperature T c being greater than or 
equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p = 0 of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 



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CLAIM 504 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite related structure, the composition having a superconductive transition 
temperature T c of greater than or equal to 26°K, said superconductive composition 
includes an element selected from the group consisting of a Group II A element and at 
least one element selected from the group consisting of a rare earth element and a 
Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition T c of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 505 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite related structure, the transition metal-oxide compound including at least one 
element selected from the group consisting of a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element, the composition having a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 



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bulk-resistivity intercept temperature Tp=o, the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk- resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 506 (Previously Presented) A superconductive apparatus for causing electric- 
current flow in a superconductive state at a temperature greater than or equal to 26°K ) 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition having a superconductive transition temperature T c of 
greater than or equal to 26°K, said superconductive composition includes a Group II A 
element, and at least one element selected from the group consisting of a rare earth 
element and a Group III B element; 

(b) a temperature controller maintaining the superconductor element at a temperature 
greater than or equal to 26°K and below the superconductor transition temperature T c of 
the superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 507 (Previously Presented) A superconductive apparatus for conducting an 
electric current essentially without resistive losses, comprising; 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 



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comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including Group II A element, and at least 
one element selected from the group consisting of a rare earth element and a Group III 
B element, the composition having a superconductive-resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p =o, the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller maintaining the superconductor element at a temperature 
below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a current source causing an electric current to flow in the superconductor element. 

CLAIM 508 (Previously Presented) An apparatus capable of carrying electric current 
flow in a superconductive state at a temperature greater than or equal to 26°K t 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition comprising a superconductor transition temperature 
T c of greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 



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CLAIM 509 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition comprising a superconductive transition temperature 
T c of greater than or equal to 26°K, said superconductive composition includes at least 
one element selected from the group consisting of a Group II A element, a rare earth 
element; and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 510 (Currently Amended) An apparatus capable of carrying an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one element selected 
from the group consisting of a Group II A element, a rare earth element and a Group III 
B element, the composition comprising a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature Tp^o, the transition-onset temperature T c being 
greater than or equal to 26°K; 



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(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p=0 of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 51 1 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising; 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the composition comprising a superconductive transition temperature 
T c of greater than or equal to 26°K, said superconductive composition includes at least 
one element selected from the group consisting of a Group II A element and at least 
one element selected from the group consisting of a rare earth element and a Group. Ill 
B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition 
temperature T c of the superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 512 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 



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related structure, the copper-oxide compound including at least one element selected 
from the group consisting of a Group II A element and at least one element selected 
from the group consisting of a rare earth element and a Group III B element, the 
composition comprising a superconductive/resistive transition defining a 
superconductive-resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p =o , the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 51 3 (Previously Presented) An apparatus capable of carrying an electric-current 
flow in a superconductive state at a temperature greater than or equal to 26°K, 
comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite related structure, the composition comprising a superconductive transition 
temperature T c of greater than or equal to 26°K, said superconductive composition 
includes at least one element selected from the group consisting of a Group II A 
element and at least one element selected from the group consisting of a rare earth 
element and a Group III B element; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature greater than or equal to 26°K and below the superconductor transition T c of 
the superconductive composition; and 



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(c) a source of an electric current to flow in the superconductor element. 

CLAIM 514 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a transition metal-oxide 
compound comprising a crystal structure comprising a layered characteristic and a 
perovskite related structure, the transition metal-oxide compound including at least one 
element selected from the group consisting of a Group II A element and at least one 
element selected from the group consisting of a rare earth element and a Group III B 
element, the composition comprising a superconductive/resistive transition defining a 
superconductive/resistive-transition temperature range between an upper limit defined 
by a transition-onset temperature T c and a lower limit defined by an effectively-zero- 
bulk-resistivity intercept temperature T p=0) the transition-onset temperature T c being 
greater than or equal to 26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p =o of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 515 (Previously Presented) An apparatus for conducting an electric current 
essentially without resistive losses, comprising: 

(a) a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound 
comprising a crystal structure comprising a layered characteristic and a perovskite 
related structure, the copper-oxide compound including at least one element selected 
from the group consisting of a group II A element, at least one element selected from 



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the group consisting of a rare earth element and at least one element selected from the 
group consisting of a Group III B element, the composition comprising a 
superconductive-resistive transition temperature defining a superconductive/resistive- 
transition temperature range between an upper limit defined by a transition-onset 
temperature T c and a lower limit defined by an effectively-zero-bulk-resistivity intercept 
temperature T p =o, the transition-onset temperature T c being greater than or equal to 
26°K; 

(b) a temperature controller for maintaining the superconductor element at a 
temperature below the effectively-zero-bulk-resistivity intercept temperature T p5 r 0 of the 
superconductive composition; and 

(c) a source of an electric current to flow in the superconductor element. 

CLAIM 516 (Previously Presented) An apparatus of claim 146 wherein said means for 
carrying a superconductive current is comprised of an oxide. 

CLAIM 517 (Currently Amended) An apparatus comprising: 

a superconductive current carrying element comprising — 26 K 
Tn greater than or equal to 26°K ; 

said superconductive current carrying element comprises a metallic, oxygen-deficient, 
perovskite-like, mixed valent copper compound. 

CLAIM 518 (Currently Amended) An apparatus according to claim 517, wherein said 
superconductive current carrying element is at a temperature greater than or equal to- 
26-K to 26°K. 



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CLAIM 519 (Previously Presented) An apparatus according to claim 517, further 
including a temperature controller for maintaining said superconductive current carrying 
element at a temperature less than said T c . 

CLAIM 520 (Previously Presented) An apparatus according to anyone of claims 517, 
518 or 519, wherein said superconductive current carrying element comprises one or 
more of the group consisting of Be, Mg, Ca, Sr, Ba t Ra, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho Er, Tm, Yb and Lu. 

CLAIM 521 (Previously Presented) An apparatus according to anyone of claims 517, 
518 or 519, wherein said superconductive current carrying element comprises one or 
more of Be, Mg, Ca, Sr, Ba and Ra and one or more of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 522 (Currently Amended) An apparatus comprising: 

a superconductive current carrying element comprising a-T^ — 36— K T g greater than or 
equal to 26°K : 

said superconductive current carrying element comprises a composition that can be 
made according to known principles of ceramic science. 

CLAIM 523 (Currently Amended) An apparatus according to claim 522, wherein said 
superconductive current carrying element is at a temperature greater than or equal to- 
2S- K 26°K . 

CLAIM 524 (Previously Presented) An apparatus according to claim 523, further 
including a temperature controller for maintaining said superconductive current carrying 
element at a temperature less than said T c . 



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CLAIM 525 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises one or 
more of the group consisting of Be, Mg t Ca t Sr, Ba t Ra, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 

CLAIM 526 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises one or 
more of Be, Mg, Ca, Sr, Ba and Ra and one or more of Sc, Y t La, Ce, Pr, Nd, Pm, Sm, 
Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb.and Lu. 

CLAIM 527 (Previously Presented) An apparatus according to claim 525, wherein said 
superconductive current carrying element comprises a transition metal 

CLAIM 528 (Previously Presented) An apparatus according to claim 526, wherein said 
superconductive current carrying element comprises a transition metal. 

CLAIM 529 (Previously Presented) An apparatus according to claim 522, wherein said 
superconductive current carrying element comprises copper oxide. 

CLAIM 530 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element is substantially 
perovskite. 

CLAIM 531 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises a 
perovskite-like structure. 

CLAIM 532 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises a 
perovskite related structure. 



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CLAIM 533 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises a 
nonstoichiometric amount of oxygen. 

CLAIM 534 (Previously Presented) An apparatus according to anyone of claims 522, 
523 or 524, wherein said superconductive current carrying element comprises a layered 
structure. 

CLAIM 535 (Currently Amended) An apparatus comprising a superconductor exhibiting 
a superconducting onset at an onset temperature greater than or equal to 26°K, said 
superconductor being comprised of at least four elements, none of which is a means for 
carrying a superconducting current at a temperature greater than or equal to 26°K, 
means a temperature controller for maintaining said superconductor at an operating 
temperature in excess of said onset temperature to maintain said superconductor in a 
superconducting state and means a current source for passing current through said 
superconductor while in said superconducting state. 

CLAIM 536 (Previously Presented) An apparatus comprising: 

a means for carrying a superconductive current exhibiting a superconductive state at a 
temperature greater than or equal to 26°K, 

a cooler for cooling said composition to a temperature greater than or equal to 26°K at 
which temperature said means for carrying a superconductive current exhibits said 
superconductive state, and 

a current source for passing an electrical current through said composition while said 
composition is in said superconductive state. 

CLAIM 537 (Previously Presented) An apparatus comprising: 



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a metallic, oxygen-deficient, perovskite-like, mixed valent transition metal composition 
exhibiting a superconductive state at a temperature greater than or equal to 26°K, 

a temperature controller maintaining said composition at a temperature greater than or 
equal to 26°K at which temperature said composition exhibits said superconductive 
state, and 

a current source passing an electrical current through said composition while said 
composition is in said superconductive state. 

CLAIM 538 (Previously Presented) The apparatus of claim 537, where said means for 
carrying a superconductive current is comprised of a metal oxide. 

CLAIM 539 (Previously Presented) The apparatus of claim 537, where said means for 
carrying a superconductive current is comprised of a transition metal oxide. 

CLAIM 540 (Previously Presented) An apparatus comprising: 

a composition comprising oxygen exhibiting a superconductive state at a temperature 
greater than or equal to 26°K, a temperature controller for maintaining said composition 
at a temperature greater than or equal to 26°K at which temperature said composition 
exhibits said superconductive state, and 

a source of an electrical current through said composition while said composition is in 
said superconductive state. 

CLAIM 541 (Previously Presented) An apparatus according to claim 540, where said 
composition is comprised of a metal oxide. 

CLAIM 542 (Previously Presented) An apparatus according to claim 541, where said 
composition is comprised of a transition metal oxide. 



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CLAIM 543 (Currently Amended) A combination, comprising: 

an oxygen containing composition exhibiting the onset of a DC substantially zero 
resistance state at an onset temperature in excess of 3Q°K, and 

m ea n s a current source for passing an electrical current through said composition while 
it is in said substantially zero resistance state. 

CLAIM 544 (Previously Presented) An apparatus according to claim 535, wherein said 
superconductor can be made according to known principles of ceramic science. 

CLAIM 545 (Previously Presented) An apparatus according to claim 536, wherein said 
means for carrying a superconductive current can be made according to known 
principles of ceram ic science. 

CLAIM 546 (Previously Presented) An apparatus according to any one of claims 537, 
538 or 539 wherein said composition can be made according to known principles of 
ceramic science. 

CLAIM 547 (Previously Presented) An apparatus according to any one of claims 540, 
541 or 542 wherein said composition can be made according to known principles of 
ceramic science. 

CLAIM 548 (Previously Presented) A combination according to claim 543, wherein said 
composition can be made according to known principles of ceramic science. 

CLAIM 549 (Previously Presented) An apparatus according to anyone of claims 496 to 
514 or 515, wherein said superconductive element can be made according to known 
principles of ceramic science. 



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CLAIM 550 (Previously Presented) An apparatus according to claim 516, wherein said 
means for carrying a superconductive current can be made according to known 
principles of ceramic science. 

CLAIM 551 (Previously Presented) An apparatus according to anyone of claims 517 to 
520 or 521 , wherein said superconductive current carrying element can be made 
according to known principles of ceramic science. 

CLAIM 552 (New) An apparatus comprising: 

a composition comprising a transition metal, oxygen and any element selected from the 
group consisting of a Group II A element, a rare earth element and a Group III B 
element, where said composition is a mixed copper oxide having a non-stoichiometric 
amount of oxygen therein and exhibiting a superconducting state at a temperature 
greater than or equal to 26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 

a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 

CLAIM 553 (New). An apparatus comprising: 

a composition comprising a transition metal, oxygen and (1) a rare earth element or a 
rare earth-like element or a group III B element, and/or (2) an alkaline earth element or 
a group IIA element 0 /©, where said composition exhibits a superconducting state at a 
temperature greater than or equal to 26°K; 

a temperature controller maintaining said composition in said superconducting state at a 
temperature greater than or equal to 26°K; and 



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a current source passing an electrical current through said composition while said 
composition is in said superconducting state. 



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