Ex parte RUOTTU - Page 7




          Appeal No. 96-1003                                                           
          Application No. 08/115,791                                                   


               Accordingly, we will sustain the examiner's rejection of                
          claims 24 and 26-31 under 35 U.S.C. § 112, second paragraph.                 
               We now turn to the examiner's rejection of the appealed                 
          claims under 35 U.S.C. § 103.  Upon careful consideration of                 
          the opposing arguments presented on appeal, we find ourselves                
          in agreement with appellant that the applied prior art fails                 
          to establish a prima facie case of obviousness for the claimed               
          subject matter.  Accordingly, we will not sustain the                        
          examiner's § 103 rejection.                                                  
               Patel, the primary reference, discloses a gasification                  
          process that does not include three of the presently claimed                 
          features.  In particular, Patel fails to disclose (1)                        
          returning separated carbonaceous material to the oxidation                   
          zone below the point of introduction of the feed carbonaceous                
          material, (2) the presence of inert material in the fluidized                
          bed reactor, and (3) recycling the separated inert material to               
          the oxidation zone of the reactor.  Although Patel discloses a               
          recycle of carbonaceous fines in line 84, the examiner is                    
          mistaken in stating that the recycled fines are introduced                   
          into the oxidation zone of the reactor.  Patel discloses that                



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