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Full text of "USPTO Patents Application 08479810"

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In claims 3-11, line 1, delete, "composition"; replace therefor -superconducting 
apparatus- 



4. (Amended) [A method including the steps oy forming] An apparatus comprising: 

a transition metal oxide having a phase ther^n which exhibits a superconducting state 
at a critical temperature in excess of 26°K,y 

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



means for passing an electrical supercurrent through said transition metal oxide while 
it is in said superconducting state. 



In claim 25- line 1, delete "method"; replace therefor -apparatus-- 



27. (Amended) A superconducting apparatus comprising a composition having a 
transition temperature m excess of 26°K, said composition being a substituted Cu-oxide 
including a superconducting phase having a structure substantially close to the 
orthorhombic-tetragonal phase transition of said composition means for maintaining 
said composition at a temperature greater than said transition temperature to put said 
composition in a superconductyg state; and means for passing current through said 
composition while in said superconducting state . 



In claims 28-31, line 1, delete "composition"; replace therefor -superconducting 
apparatus--. 



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33. (Amended) A superconducting apparatus comprising a composition having a 
superconducting onset temperature in excess of 26°K., the composition being comprised 
of a copper oxide doped with a\alkaline earth element where the concentration of said 
alkaline earth element is near to th^concentration of said alkaline earth element where 
the superconducting copper oxide phas^n said composition undergoes an orthorhombic 
to tetragonal structural phase transition. 



In claim 34, line 1, after "superconducting", insert -apparatus comprising a-. 



In claim 35, line 1, delete "composition"; replace therefor -superconducting apparatus- 



40 - (Amended) [A] An apparatus comprising a superconductor exhibiting a 
superconducting onset at [a] an o^set temperature in excess of 26°K, said 



^ superconductor being comprised of at least four elements, none of which is itself 
superconducting , means for maintaining said superconductor at an operating 
temperature in excess of said onset temperature to maintain said superconductor in a 
superconducting state and mezfns for passing current through said superconductor while 
in said superconducting state . 



In claims 41-45, delete "superconductor"; replace therefor -apparatus-. 



In claim 46, line 1, delete "A"; replace therefor -An apparatus comprising- 



<^^(^^^a86. (Amended) [A method] An apparatus comprising [the steps of]:[forming] a 

V composition including a transition metal, a rare earth or rare earth-like element, an 
I alkaline earth element, and oxygen, where said composition is a mixed transition metla 



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A 




oxide having a non-stoichiometric amount of oxygen therein and exhibiting a 
superconducting state at a temperature /greater than 26°K, 

means for maintaining said composition in said superconducting state at a temperature 
greater than 26° K, and 



means for passing an electrical currpnt through said composition while said composition 
is in said superconducting state. 



96. (Arhended) A superconductive [method] apparatus for causing electric-current flow 
in a superconductive state at a temperature in excess of 26 K, comprising: 



) [providing] a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a copper-oxide compound having 
a layer-type perovskite-likescrystal structure, the composition having a superconductor 
transition temperature T c of gr&ater than 26 K; 




(b) means for maintaining the superconductor element at a temperature above 26 K and 
below the superconductor transition temperature T c of the superconductive composition; 
and 



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

103. (Amended) A superconductor [rnfcthod] apparatus for conducting an electric 
current essentially without resistive losses, comprising: 



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A 



(a) [providing] a superconductor element made of a superconductive composition, the 
superconductive composition consisting essentially of a coppe^oxide compound having 
a layer-type perovskite-like crystal structure, the copper-o?ode compound including at 
least one rare-earth or rare-earth-like element and at teast one alkaline-earth element, 
the composition having a superconductive/resistive/iransition defining a 
superconductive/resistive-transition temperature'range between an upper limit defined 
by a transition-onset temperature T c and a hzfwer limit defined by an 
effectively-zero-bulk- resistivity intercept temperature T p ^ 0 » the transition-onset 
temperature T c being greater than 26 



f (b) means for maintaining the superconductor element at a temperature below the 
effectively<^o-bulk-resistivityintercept temperature T p=s0 of the superconductive 
composition; and 



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



Respectful 




fniel P. Mdrris 
Reg. No. 32,053 



IBM Corporation 

Intellectual Property Law Dept. 

P.O. Box 218 

Yorktown Heights, N.Y. 10598 
(914) 945-3217 



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