Ex Parte Reddy et al - Page 8

            Appeal No. 2002-2318                                                      
            Application 09/652,520                                                    
            Pirolli with Pouschine.  On Page 5 of the answer, the                     
            examiner suggests that Pouschine’s teaching essentially                   
            invites one of ordinary skill in the art to “investigat[e]                
            techniques for deciding what to pre-calculate.”  Thus, the                
            examiner seems to suggest that it would have been obvious to              
            try various techniques in the system of Pouschine so that                 
            one of ordinary skill in the art could decide what to pre-                
            compute [answer, page 5].  However, it is well settled that               
            the "obvious to try" standard does not constitute                         
            obviousness.  In re Deuel, 51 F.3d 1552, 1559, 34 USPQ2d                  
            1210, 1216 (Fed. Cir. 1995)(“A general incentive does not                 
            make obvious a particular result, nor does the existence of               
            techniques by which those efforts can be carried out.”).                  
            Merely because Pouchine’s modeling system does not require                
            pre-calculation of all data cells is hardly an adequate                   
            reason why the skilled artisan would rely on Pirolli’s                    
            teaching of using a threshold to determine the most visited               
            web pages.  We are compelled to find that the only                        
            motivation for combining Pirolli with Pouschine stems from                
            impermissible hindsight by reconstructing the invention                   
            using the claims as a template.                                           
                 We recognize that “[a]ny judgment on obviousness is in               
            a sense necessarily a reconstruction based upon hindsight                 
            reasoning.”  Ex parte Rodgers, 27 USPQ2d 1738, 1748 (Bd.                  
            Pat. App. & Int’f 1992).  However, such a reconstruction                  
            must not include knowledge gleaned solely from appellants’                


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