Ex parte ZHEN et al. - Page 8


            Appeal No. 1996-2530                                                      
            Application 08/246,324                                                    



            Specification, p. 9.  Appellants seek to make "ceramic                    
            powders for use as starting powders for high technology                   
            ceramics" (spec. p. 2).  Read in light of this                            
            disclosure, the claimed process produces and recovers                     
            powders composed of small particles.  Looking now at                      
            Wood, it discloses rigid ceramic foam structures usable                   
            as                                                                        
                 nuclear reactor components, filters, acoustical                      
                 insulators, electrical insulators and thermal                        
                 insulators, noise suppressors or mufflers,                           
                 components of aircraft and missiles, radomes,                        
                 circuit bases, wave guides, combustion ports, rocket                 
                 nozzles and vanes, base support structure for                        
                 ablation materials, heat exchangers for vehicle                      
                 afterburners and the like.                                           
            Column 7, line 65 to column 8, line 4.  Comparing the two                 
            - the small particle powder of the claims and the                         
            structures of Wood - there is no question that they refer                 
            to two completely different things.  For this reason, we                  
            are unpersuaded by Examiner's argument to the contrary.                   
                 Examiner's second argument is equally without merit.                 
            Common sense dictates that a structure of the type Wood                   
            is making (e.g., filters, components of aircraft, etc.)                   
            is not                                                                    








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