Interference No. 103,029
18 USPQ2d 1016, 1021 (Fed. Cir. 1989), cert. denied, 502 U.S.
856 (1991)(no conception of chemical compound based solely on
its biological activity). The conception analysis necessarily
turns on the inventor's ability to describe his invention with
particularity. Until he can do so, he cannot prove possession
of the complete mental picture of the invention. These rules
ensure that patent rights attach only when an idea is so far
developed that the inventor can point to a definite,
particular invention. Burroughs, 40 F.3d at 1228, 32
USPQ2d at 1919.
Neither conception nor reduction to practice may be
established by the uncorroborated testimony of the inventor.
See Tomecek v. Stimpson, 513 F.2d 614, 619, 185 USPQ 235, 239
(CCPA
1975). The inventor's testimony, standing alone, is
insufficient
to prove conception--some form of corroboration must be shown.
See Price, 988 F.2d at 1194, 26 USPQ2d at 1036. While the
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