Appeal No. 1998-0870 Application No. 08/325,015 teachings of the applied references would have suggested to one of ordinary skill in the art; nonobviousness cannot be established by attacking references individually when the rejection is based on a combination of references. In re Merck & Co., 800 F.2d 1091, 1097, 231 USPQ 375, 380 (Fed. Cir. 1986); Cable Elec. Prods., Inc. v. Genmark, Inc., 770 F.2d 1015, 1025, 226 USPQ 881, 886-87 (Fed. Cir. 1985); In re Keller, 642 F.2d 413, 425, 208 USPQ 871, 881 (CCPA 1981). As we discussed above, we find that the combined teachings of the applied references would have led one of ordinary skill in the art to substitute the carbon black with polypyrrole, because the references show that these materials are interchangeable as black electrically conductive fine powders called for in Kinoshita. Thus, we conclude that the applied prior art references would have provided ample motivation or suggestion to one of ordinary skill in the art to arrive at appellants’ claimed subject matter. It also appears that appellants are alleging that Armes and Wessling constitute non-analogous art. We are not persuaded by this argument. As correctly stated by the 17Page: Previous 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 NextLast modified: November 3, 2007