Ex Parte GERRITSEN et al - Page 4



         Appeal No. 2000-0697                                                       
         Application No. 09/049938                                                  

         The examiner has not established, however, the specific                    
         similarity between the Riley and claimed process to support the            
         conclusion that one of ordinary skill in the art would have                
         reasonably expected that the Riley process is adaptable and                
         suitable for feedstocks other than those disclosed by Riley.  For          
         example, the examiner has not cited any reference which                    
         demonstrates that processes similar to that disclosed in Riley             
         have been used to treat feedstocks of the type claimed.                    
              Regarding the claimed amount of silica in the carrier of the          
         second catalyst, "it is the examiner's position that the minor             
         amount of silica [disclosed by Riley] can be interpreted as 1, 2,          
         3, or 4 wt.%" (page 5 of Answer, first paragraph).  Again,                 
         however, the examiner has not presented the requisite factual              
         basis for this conclusion.  For instance, the examiner has not             
         demonstrated that it was known in the art to employ catalytic              
         carriers comprising the claimed amount of silica in processes              
         similar to the one claimed.  The examiner places the cart before           
         the horse in stating that "the applicant does not show that a              
         catalyst that contains 3 wt.% of silica is better than a catalyst          
         that contains about 1 or 2 wt.% of silica" (id.).  It is the               
         examiner's burden, in the first instance, to establish a prima             
         facie case of obviousness for the claimed amount of silica in the          

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