Ex Parte Naumann et al - Page 5


             Appeal No. 2006-2423                                                              Page 5                
             Application No. 10/297,871                                                                              

                    Appellants argued that prima facie obviousness had not been established                          
             because Lindenbaum was not analogous art to the claimed subject matter since it                         
             taught formulations for enhancing hair or nail growth, not hair dyes.  Brief, pages 5-6.                
             They also contended that “the Lindenbaum reference teaches away from addition to a                      
             dye composition since it restores the natural color of the hair.”  Id., page 8.                         
                    A prerequisite to a finding of obviousness is a determination of what constitutes                
             “prior art” to the claimed subject matter. In re Clay, 966 F.2d 656, 658, 23 USPQ2d                     
             1058, 1060 (Fed. Cir. 1992).  This inquiry, “frequently couched in terms of whether the                 
             art is analogous or not,” is necessary in order to ascertain whether “the differences                   
             between the subject matter sought to be patented and the prior art are such that the                    
             subject matter as a whole would have been obvious at the time the invention was made                    
             to a person having ordinary skill in the art.”  35 U.S.C. § 103; Clay, 966 F.2d at 658,                 
             23 USPQ2d at 1060.  “Two criteria have evolved for determining whether prior art is                     
             analogous: (1) whether the art is from the same field of endeavor, regardless of the                    
             problem addressed, and (2) if the reference is not within the field of the inventor’s                   
             endeavor, whether the reference still is reasonably pertinent to the particular problem                 
             with which the inventor is involved.  In re Deminski, 796 F.2d 436, 442, 230 USPQ 313,                  
             315 (Fed.Cir.1986); In re Wood, 599 F.2d 1032, 1036, 202 USPQ 171, 174                                  
             (CCPA 1979).”  Clay, 966 F.2d at 658-59, 23 USPQ2d at 1060.                                             
                    We agree with Appellants that Gast and Lindenbaum are not properly                               
             combinable because they are not analogous prior art.  As argued by Appellants, Gast is                  
             concerned with changing the natural color of hair by applying a hair dye.  Lindenbaum,                  
             on the hand, describes a formulation for growing hair that has the “unexpected result” of               





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