Ex parte HEMPRECHT - Page 9




          Appeal No. 1997-2195                                                        
          Application 08/102,752                                                      



          1127, 1133 (Fed. Cir. 1995), “reliance on per se rules of                   
          obviousness is legally incorrect and must cease.”   The court               
          further stated:                                                             
                    Mere citation of Durden, Albertson, or any other                  
                    case as a basis for rejecting process claims that                 
                    differ from the prior art by their use of                         
                    different starting materials is improper, as it                   
                    sidesteps the fact-intensive inquiry mandated by                  
                    section 103.  In other words, there are not                       
                    “Durden obviousness rejections” or “Albertson                     
                    obviousness rejections,” but rather only section                  
                    103 obviousness rejections.                                       
          Ochiai, 71 F.3d at 1570, 37 USPQ2d at 1132.                                 
               When an examiner is determining whether a claim should be              
          rejected under 35 U.S.C. § 103, the claimed subject matter as a             
          whole must be considered.  See Ochiai, 71 F.3d at 1569, 37 USPQ2d           
          at 1131.  The subject matter as a whole of process claims                   
          includes the starting materials and product made.  When the                 
          starting and/or product materials of the prior art differ from              
          those of the claimed invention, the examiner has the burden of              
          explaining why the prior art would have motivated one of ordinary           
          skill in the art to modify the materials of the prior art process           
          so as to arrive at the claimed invention.  See Ochiai, 71 F.3d              
          at 1570, 37 USPQ2d at 1131.  The examiner has not provided such             

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