Ex Parte LANG et al - Page 6




          Appeal No. 2003-0465                                                        
          Application No. 09/424,119                                                  

          claim 18 is enabled by the relatively narrow range of                       
          compositions exemplified in their specification disclosure.3                
               With further regard to the issues of motivation and                    
          reasonable expectation of success, the appellants concede that              
          Clausen expressly teaches in the paragraph bridging columns 2 and           
          3 the use of his diaminopyrazole oxidation bases in combination             
          with conventional direct-dyeing dyestuffs but argue that the                
          specific examples of such dyestuffs listed in this paragraph                
          define a class of direct dyes which does not include the direct             
          dyes of Lang.  This argument is not well taken.  It is                      
          significant that the specific dyes listed in this paragraph are             
          characterized by Clausen as examples of conventional direct-                
          dyeing dyestuffs for use in combination with his diaminopyrazole            
          oxidation bases.  This fact would have suggested to an artisan              
          that the types of dyes specifically listed in Clausen’s paragraph           
          are merely exemplary, rather than exhaustive as the appellants              
          would have us believe, of the dye types which may be used in                


               3 It is here appropriate to stress that we see no basis for            
          considering the unpredictable nature of this art to support a               
          determination that an artisan would not be able to practice the             
          here claimed invention just as we see no basis for considering              
          the unpredictable nature of this art to support a determination             
          that an artisan would have no reasonable expectation of success             
          concerning the examiner’s proposed combination of Lang and                  
          Clausen.                                                                    
                                          6                                           





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