Appeal No. 95-2011 Application No. 07/959,011 the epoxy resin to produce a crosslinked polymer product. According to claim 1, the monomers in both the core and shell do not contain amino functional groups. Ting discloses a two-stage process for producing graft polymers using the same or similar reactants as recited in claim 1. The examiner correctly points out that claim 1 is a product-by-process claim (Answer, p. 5). Manifestly, the patentability of a product in a product-by-process claim does not depend on its method of production, but rather patentability is based on the product itself. In re Thorpe, 777 F.2d 695, 697-98, 227 USPQ 964, 966 (Fed. Cir. 1985). Appellants point out (Brief, p. 3): It must be noted that while the claims are described in product by process form, they are defined by several structural features which distinguish them from Ting. First, the product claimed is directed to a core-shell polymer where the epoxy is present in the core which is encapsulated by the shell (i.e., shell formed on the core). [Emphasis in original.] However, according to the examiner (Answer, p. 6): 6Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007