Ex parte PHAN et al. - Page 6




          Appeal No. 1997-3730                                                        
          Application No. 08/095,147                                                  


          (1988); Ashland Oil, Inc. v. Delta Resins & Refractories,                   
          Inc.,                                                                       
          776 F.2d 281, 293, 227 USPQ 657, 664 (Fed. Cir. 1985), cert.                
          denied, 475 U.S. 1017 (1986); ACS Hosp. Sys., Inc. v.                       
          Montefiore Hosp., 732 F.2d 1572, 1577, 221 USPQ 929, 933 (Fed.              
          Cir. 1984).  These showings by the Examiner are an essential                
          part                                                                        
          of complying with the burden of presenting a prima facie case               
          of                                                                          
          obviousness.  Note In re Oetiker, 977 F.2d 1443, 1445, 24                   
          USPQ2d                                                                      
          1443, 1444 (Fed. Cir. 1992).                                                
               With respect to the Examiner’s obviousness rejection of                
          independent claims 1 and 7, Appellants assert (Brief, page 19)              
          that the Examiner has failed to establish a prima facie case                
          of obviousness since none of the references suggest any reason              
          why they might be combined.  Further, Appellants assert that,               
          even if the references could be combined, the resulting                     
          combination would not meet the requirements of the claimed                  
          invention.                                                                  


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