Interference No. 101,981
There is also no dispute that the parties’ applications
teach the following other properties recited in the count
relative the AB2Cu3Oy superconductive composition:
Crystalline
Batlogg – p. 4, line 3
Beyers – p. 4, line 7
Qadri – p. 6, line 8
Essentially single phase
Batlogg – p.5, line 21
Beyers – p. 4, line 7
Qadri – p. 5, line 4
Having a perovskite-like structure
Batlogg – p. 5, line 27
Beyers – p. 4, line 7
Qadri – see Figure 2 discussed at p. 7, line 23; compare with
similar illustration of “oxygen-defect perovskite YBa 2Cu3Ox”
in Grant et al, “Superconductivity above 90K in the compound
YBa2Cu3Ox: Structural, transport, and magnetic properties”,
Physical Review B, Vol. 35, Number 13, 1 May 1987, p. 7242
(copy attached to paper no. 40)
Exhibiting zero electrical resistance at a temperature of 70°K or
higher
Batlogg – Table at p. 11a, see examples 1 and 3 (measured at,
for instance, TcR=0; see discussion at p. 11, lines 18-20)
Beyers – p. 4, line 7 (e.g., “demonstrated bulk
superconductivity”)
Qadri – p. 4, line 20 (e.g., “having a transition temperature
above 85K”)
90% Purity
The last remaining property required by the count is:
“having a purity of at least 90%”. Unlike the aforementioned
properties, this phrase does not appear verbatim in any of the
parties’ specifications and therefore raises a question of
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