Ex parte DAHN et al. - Page 3




          Appeal No. 1999-0769                                       Page 3           
          Application No. 08/661,532                                                  


          wherein x = 0 to 1.25, y=0.82 to 31 and x+y is greater than or              
          equal to 0.82 and less than or equal to 31 and wherein lithium              
          ions are incorporated therein.                                              




               20.  In a method of making a rechargeable lithium ion                  
          battery, the improvement comprising making an anode by a                    
          process comprising:                                                         
               (A) pyrolyzing a composition comprising a polysilane to                
          form a ceramic material; and                                                
               (B) introducing lithium ions into the ceramic material to              
          form an anode.                                                              

               The sole prior art reference of record relied upon by the              
          examiner as evidence of obviousness is:                                     
          Xue et al., “An Epoxy Silane Approach to Prepare Anode                      
          Materials for Rechargeable Lithium Ion Batteries,” J.                       
          Electrochem Soc., Vol. 142, No. 9, September 1995 (Xue)                     
               Appellants cite the following reference of record:                     
          Noll, Chemistry and Technology of Silicones, Academic Press,                
          1968, p. 13 (translated 2d Ger. Ed.)                                        
               Claims 1-16 and 18-20 stand rejected under 35 U.S.C. §                 
          103 as being unpatentable over Xue.                                         


                                       OPINION                                        









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