Ex Parte BENAZZI et al - Page 3




           Appeal No. 2001-0771                                                                      
           Application No. 09/103,528                                                                

                 Claims 1-17 stand rejected under 35 U.S.C. § 103 for                                
           obviousness in view of Casci taken in combination with Kuehl.1                            
                 We have carefully considered the issues in this case in                             
           light of the evidentiary record and the positions advanced by the                         
           appellants and the examiner.  Having done so, we conclude that                            
           the examiner has established a prima facie case of obviousness                            
           which is not outweighed by the evidence of nonobviousness adduced                         
           by the appellants.  Accordingly, we shall affirm the rejection at                         
           issue.                                                                                    
                 We agree with the examiner that the Kuehl disclosure would                          
           have provided the requisite motivation under 35 U.S.C. § 103 to                           
           subject the EU-1 zeolite of Casci to “dealumination” (removal of                          
           aluminum) in order to enhance its catalytic activity, as                                  
           suggested by Kuehl (col. 2, ll. 54-68; col. 12, ll. 59-63).                               
                 Appellants argue that the reasoning advanced by the examiner                        
           is an oversimplification of the Kuehl disclosure.  According to                           
           the appellants, Kuehl attributes enhanced catalytic activity not                          
           to the removal of aluminum, per se, but to the resultant high                             

           1The final rejection included another ground of rejection based                           
           upon the application of Casci alone, alternatively under either                           
           35 U.S.C. § 102(b) or 35 U.S.C. § 103.  That rejection has been                           
           withdrawn by the examiner as being overcome by evidence submitted                         
           by appellants on Nov. 29, 1999 (Martino Declaration).                                     
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