Appeal No. 1996-3433 Application No. 08/198,955 claims. Since no prima facie case of obviousness has been established, we need not address the propriety of the evidence of nonobviousness proffered by appellant, including the “expert opinion” affidavit of record. See In re Piasecki, 745 F.2d 1468, 1472, 223 USPQ 785, 788 (Fed. Cir. 1984). 7Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007