Interference No. 102,755 224 USPQ at 862 (quoting Fields v. Knowles, [37 C.C.P.A. 1211], 183 F.2d 593, 601, 86 USPQ 373, 379 (CCPA 1950)). However, "there is no final single formula that must be followed in proving corroboration." Berry v. Webb, [56 C.C.P.A. 1272], 412 F.2d 261, 266, 162 USPQ 170, 174 (CCPA 1969). Rather, the sufficiency of corroborative evidence is determined by the "rule of reason." Price [v. Symsek], 988 F.2d [1187,] at 1195, 26 USPQ2d [1031,] at 1037 [(Fed. Cir. 1993)]; Berry, 412 F.2d at 266, 162 USPQ at 173. Accordingly, a tribunal must make a reasonable analysis of all of the pertinent evidence to determine whether the inventor's testimony is credible. Price, 988 F.2d at 1195, 26 USPQ at 1037. The tribunal must also bear in mind the purpose of corroboration, which is to prevent fraud, by providing independent confirmation of the inventor's testimony. See Berry, 412 F.2d at 266, 162 USPQ at 173 ("The purpose of the rule requiring corroboration is to prevent fraud."); Reese v. Hurst, 661 F.2d 1222, 1125, 211 USPQ 936, 940 (CCPA 1981) ("[E]vidence of corroboration must not depend solely on the inventor himself."). Stimson argues that Nedelk's case for conception fails because it was not supported by any documentary evidence: Not a single piece of paper has been introduced to establish conception of the invention prior to February 16, 1988, Senior Party's filing date. Not a single piece of paper has been introduced to establish conception of the invention by Nedelk prior to August 17, 1988[,] the date Nedelk submitted an information disclosure statement to the corporate Patent Screening Committee. - 9 -Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 NextLast modified: November 3, 2007