Ex parte FLEISCHER et al. - Page 4




          Appeal No. 1996-0841                                                        
          Application No. 07/928,443                                                  

          through 24 and 30 above, and further in view of Smith and                   
          Matsuura; and                                                               
          (6) Claim 33 under 35 U.S.C. § 103 as unpatentable over                     
          Clifford and Firth as applied to claims 1 through 3, 5 through              
          24 and 30 above, and further in view of Micheli and Forster.                
               Having carefully reviewed the claims, specification and                
          applied prior art, including all of the arguments advanced by               
          both the examiner and appellants, we agree with appellants                  
          that the examiner has not established a prima facie case of                 
          obviousness regarding the claimed subject matter.  Therefore,               
          we reverse each of the foregoing § 103 rejections for                       
          essentially those reasons set forth by appellants in their                  
          Brief and Reply Briefs.  We add the following primarily for                 
          emphasis.                                                                   
               The appealed subject matter as represented by the                      
          broadest claim on appeal, claim 1, is directed to an improved               
          gas sensor array composed of a plurality of individual sensor               
          elements for detecting individual gas constituents in a gas                 
          mixture.  The improvement lies in using                                     
               at least one of the individual sensor elements                         
               comprising a catalytically inactive $-Ga O  thin film                  
                                                       2 3                            
               being provided with a catalytically active material,                   
               and with all the individual sensor elements being                      
                                          4                                           





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