Appeal No. 97-3030 Application No. 08/254,181 that a heating resistance or some source of heat should be used adjacent a fragrance bar and those skilled in that art would have been expected to be familiar with such elements. Those seeking to modify the heating element of Pons Pons would be expected to look to the heating arts. Although Yamamoto is not directed to electrically heated air fresheners, it is directed, somewhat, to heating elements in its use of a porcelain enamel metal substrate. So while Yamamoto does not appear to be within appellants’ field of endeavor, i.e., heated air fresheners, it is, in our view, reasonably pertinent to the particular problem with which appellants were concerned, i.e., heating. Having said that, although we have determined that Yamamoto does constitute analogous art, we hold that the instant claimed subject matter would not have been obvious, within the meaning of 35 U.S.C. § 103, based on any combination of Pons Pons, Yamamoto, Napierski, Hawkins, Hung and Maury. Only Yamamoto is alleged to provide the teaching of the claim limitation, "a porcelain enamel metal substrate." While Yamamoto does, indeed, disclose such, the porcelain enamel metal substrate disclosed therein is not used as a heat 6Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007