Ex parte CHOU et al. - Page 3




          Appeal No. 1998-0556                                                        
          Application No. 08/367,418                                                  

               We refer to the brief and to the answer for a thorough                 
          discussion of the opposing viewpoints expressed by the                      
          appellants and by the examiner concerning the above noted                   
          rejection.                                                                  


                                       OPINION                                        
               This rejection cannot be sustained.                                    
               On the third and fourth pages of the answer, the examiner              
          expresses his basic position as follows:                                    
                    It would have been obvious to one having                          
               ordinary skill in the art at the time the invention                    
               was made to have modified the process of Ward by                       
               utilizing a zeolite beta catalyst as suggested by                      
               LaPierre in place of the zeolite catalysts disclosed                   
               by Ward because higher liquid and lower gas yields                     
               result.                                                                
                    It also would have been obvious to one having                     
               ordinary skill in the art at the time the invention                    
               was made to have optimized the Ward process as                         
               modified by  LaPierre by optimizing amounts of                         
               ammonia added, optimizing the number of points of                      
               additions, optimizing noble metal amounts, and                         
               optimizing operating temperature ranges because such                   
               optimization has been held to be within the level of                   
               ordinary skill in the art where, as here, the                          
               general conditions of the claims are disclosed.                        
               (See In re Aller, 105 USPQ 233, 235 (CCPA 1955)).                      
               In order to establish a prima facie case of obviousness,               
          the applied prior art must provide a suggestion to modify the               

                                          3                                           





Page:  Previous  1  2  3  4  5  6  7  8  9  Next 

Last modified: November 3, 2007