Appeal No. 2002-1882 Application 09/756,383 claim a method for feeding a gasoline composition containing rhodium acetylacetonate and a fuel-soluble organoplatinum compound to an engine so as to renew or improve the performance of a three-way catalytic converter operated on the engine. Claim 1, directed toward the composition, is illustrative: 1. A composition for adding to gasoline for the purpose of maintaining or improving the performance of a three-way catalytic converter, comprising a blend of rhodium acetylacetonate and a fuel-soluble organo-platinum compound. THE REFERENCES Bowers et al. (Bowers) 4,891,050 Jan. 2, 1990 Epperly et al. (Epperly) 5,034,020 Jul. 23, 1991 THE REJECTION Claims 1-20 stand rejected under 35 U.S.C. § 103 over Bowers and over Bowers in view of Epperly. OPINION We affirm the aforementioned rejections. The appellants state that the claims do not stand or fall together (brief, page 4). The appellants, however, do not provide a substantive argument as to why the claims are believed to be separately patentable. Accordingly, we limit our discussion to one claim, i.e., claim 1. See In re Ochiai, 71 F.3d 1565, 1566 n.2, 37 USPQ2d 1127, 1129 n.2 (Fed. Cir. 1995); 37 CFR § 1.192(c)(7)(1997). 2Page: Previous 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007