Interference No. 103,379 Decision on Reconsideration insufficient to prove diligence because "[n]one of these documents have been introduced into evidence, let alone with authenticating testimony by someone other than Dance. Furthermore, the preparation of these documents is not corroborated by Dennis or anyone else." (Decision at 17.) Dance argues that the sequence of acts listed in the Dance Declaration, since they are nowhere rebutted, must be taken as established for purposes of this proceeding. Clearly, to the extent corroboration is needed, the filing date of the Dance application is corroborated. Since Seifert in no way challenged the sufficiency of the assertions of the Dance Declaration on any basis[,] the Board is asked to recognize that diligence, to the extent it is needed, has been established as not having been objected to or otherwise disproved by Seifert. [Request at 3.] This argument places the burden of proof on the wrong party. It is Dance, as the party seeking to establish a date of invention prior to Seifert's filing date, who bears the burden of proving diligence, 37 CFR § 1.657(a) and § 1.657(b), which like conception must be corroborated. Price v. Symsek, 988 F.2d 1187, 1196, 26 USPQ2d 1031, 1038 (Fed. Cir. 1993). Seifert was not required prior to filing his brief to identify the perceived weaknesses in Dance's priority evidence, with - 3 -Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007