Appeal No. 2000-0713 Application 08/864,726 both planar and non-planar shapes, the examiner has not identified, nor do we find, any teaching of a preform having both opposing convex curved surfaces and a perimeter with concave shape edges as required by claim 16. Therefore, the rejection under 35 U.S.C. § 102(b) is reversed. Claims 16-20 were rejected, in the alternative, under 35 U.S.C. § 103 as obvious over Prud'Homme. The initial burden of presenting a prima facie case of obviousness rests on the examiner. In re Oetiker, 977 F.2d 1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992). In determining whether an invention is obvious, the examiner must consider (1) the scope and content of the prior art; (2) the differences between the prior art and the claimed invention; (3) the level of ordinary skill in the art; (4) any objective considerations that may be present. Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 466-67 (1966). ?The question under 35 U.S.C. § 103 is not merely what the references expressly teach but what they would have suggested to one of ordinary skill in the art at the time the invention was made." In re Lamberti, 545 F.2d 747, 750, 192 USPQ 278, 280 (CCPA 1976). Even where a single prior art reference is relied upon show obviousness, there must be a showing of a suggestion or motivation to modify the teaching of that reference to achieve the claimed invention. In re Kotzab, 217 F.3d 1365, 1370, 55 USPQ2d 1313, 1316 (Fed. Cir. 2000). The suggestion or motivation to modify a reference may be implicit from the prior art as a whole rather than expressly stated. Id. However, regardless of whether the 6Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007