Interference 104,002
v. L’Oreal, S.A., 129 F.3d 588, 592, 44 USPQ2d 1610, 1613 (Fed. Cir. 1997) that
. . . an inventor must establish that he “‘actually prepared the
composition and knew it would work.’” Hahn v. Wong, 892 F.2d
1028, 1032, 13 USPQ2d 1313, 1317 (Fed. Cir. 1989) (quoting
Mikus v. Wachtel [II], 542 F.2d 1157, 1159, 191 USPQ 571, 573
(CCPA 1976)); see also Burroughs Wellcome Co. v. Barr Lab., Inc.,
40 F.3d 1223, 1228, 32 USPQ2d 1915, 1919 (Fed. Cir. 1994)
(reduction to practice requires “the discovery that an invention
actually works” (emphasis added)): see also Standard Oil Co.
(Indiana) v. Montedison, S.p.A., 494 F. Supp. 370, 206 USPQ 676
(D. Del. 1980), aff’d, 664 F.2d 356, 212 USPQ 327 (3d Cir. 1981)
(reduction to practice requires a showing of three elements: (i)
production of a composition of matter satisfying the limitations of
the count, (ii) recognition of the composition of matter, and (iii)
recognition of a specific practical utility for the composition).
Godiska, as the junior party, has the burden of proving their case for priority by
a preponderance of the evidence. 37 C.F.R. § 1.657 (b). See also, Bosies v. Benedict,
27 F.3d 539, 541-42, 30 USPQ2d 1862, 1864 (Fed. Cir. 1994); Peeler v. Miller, 535
F.2d 647, 651 n.5, 190 USPQ 117, 120 n.5 (CCPA 1976); Linkow v. Linkow, 517 F.2d
1370, 1373, 186 USPQ 223, 225 (CCPA 1975).
Godiska argues that Dr. Godiska worked under the direction of Dr. Gray to
isolate and characterize clones obtained from a human macrophage cDNA library.
GB, p. 125. Godiska further argues that on December 12, 1994, Dr. Godiska gave
several isolated clones from said library to Ms. Christa Wood, a research associate at
Icos Corporation, for DNA sequence analysis. Id., p. 126; GR 121, para. 14. Ms. Wood
sequenced the clones using an Applied biosystems automated DNA sequencer, model
373A, and gave the results to Dr. Godiska on December 15, 1994. Id., p. 127; GR 75,
para. 55; GR 122, para. 16. Dr. Godiska is said to have analyzed the three potential
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