Appeal No. 96-1805 Application 08/200,432 The rejections are explained in the Examiner's Answer. The opposing viewpoints of the appellants are set forth in the Brief. OPINION The examiner has presented two rejections under 35 U.S.C. § 103, each of which relies on the combined teachings of at least four references in order to support the conclusion that the claimed subject matter would have been obvious. The guidance provided us by our reviewing court for evaluation of such rejections is that the test for obviousness is what the combined teachings of the prior art would have suggested to one of ordinary skill in the art. See In re Keller, 642 F.2d 413, 425, 208 USPQ 871, 881 (CCPA 1981). In establishing a prima facie case of obviousness, it is incumbent upon the examiner to provide a reason why one of ordinary skill in the art would have been led to modify a prior art reference or to combine reference teachings to arrive at the claimed invention. See Ex parte Clapp, 227 USPQ 972, 973 (BPAI 1985). To this end, the requisite motivation must stem from some teaching, suggestion or inference in the prior art as a whole or from the knowledge generally available to one of 4Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007