Appeal No. 94-4429 Application 07/910,967 1127, 1133 (Fed. Cir. 1995), “reliance on per se rules of obviousness is legally incorrect and must cease.” The court further stated: Mere citation of Durden, Albertson, or any other case as a basis for rejecting process claims that differ from the prior art by their use of different starting materials is improper, as it sidesteps the fact-intensive inquiry mandated by section 103. In other words, there are not “Durden obviousness rejections” or “Albertson obviousness rejections,” but rather only section 103 obviousness rejections. 71 F.3d at 1570, 37 USPQ2d at 1132. When an examiner is determining whether a claim should be rejected under 35 U.S.C. § 103, the claimed subject matter as a whole must be considered. See Ochiai, 71 F.3d at 1569, 37 USPQ2d at 1131. The subject matter as a whole of process claims includes the starting materials and product made. When the starting and/or product materials of the prior art differ from those of the claimed invention, the examiner has the burden of explaining why the prior art would have motivated one of ordinary skill in the art to modify the materials of the prior art process so as to arrive at the claimed invention. See Ochiai, 71 F.3d at 1570, 37 USPQ2d at 1131. In the present case, the examiner has not carried this burden. The examiner further argues that appellant’s specification includes some of the prior art aldehydes (answer, page 5). This 4Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007