Ex Parte Sakashita et al - Page 9

                   Appeal 2006-1581                                                                                                
                   Application 10/2006-1581                                                                                        
                   claims which the evidence is offered to support.  In re Clemens, 622 F.2d                                       
                   1029, 1035, 206 USPQ 289, 296 (CCPA 1980); In re Greenfield, 571 F.2d                                           
                   1185, 1189, 197 USPQ 227, 230 (CCPA 1978); In re Lindner, 457 F.2d 506,                                         
                   508, 173 USPQ 356, 358 (CCPA 1972); In re Tiffin, 448 F.2d 791, 792, 171                                        
                   USPQ 294, 294 (CCPA 1971).                                                                                      
                          We also note that the law is replete with cases in which the difference                                  
                   between the claimed invention and the prior art is some range or other                                          
                   variable within the claims. See, e.g., Gardner v. TEC Sys., Inc., 725 F.2d                                      
                   1338, 220 USPQ 777 (Fed. Cir.), cert. denied, 469 U.S. 830 [ 225 USPQ                                           
                   232 ] (1984); In re Boesch, 617 F.2d 272, 205 USPQ 215 (CCPA 1980); In                                          
                   re Ornitz, 351 F.2d 1013, 147 USPQ 283 (CCPA 1965); In re Aller, 220                                            
                   F.2d 454, 105 USPQ 233 (CCPA 1955).  These cases have consistently held                                         
                   that in such a situation, the applicant must show that the particular range                                     
                   is critical, generally by showing that the claimed range achieves unexpected                                    
                   results relative to the prior art range. Gardner, 725 F.2d at 1349, 220 USPQ                                    
                   at 786 (obviousness determination affirmed because dimensional limitations                                      
                   in claims did not specify a device which performed and operated differently                                     
                   from the prior art); Boesch, 617 F.2d at 276, 205 USPQ at 219; Ornitz, 351                                      
                   F.2d at 1016-17, 147 USPQ at 286; Aller, 220 F.2d at 456, 105 USPQ at                                           
                   235.  Appellants have made no such showing in the present case.                                                 
                          In view of the above, we therefore affirm each of the Examiner’s 35                                      
                   U.S.C.  102(b)/103(a) rejections.  See, e.g., In re Thorpe, 777 F.2d 695, 697-                                  
                   98, 227 USPQ 964, 966 (Fed. Cir. 1985), wherein the examiner's rejection of                                     
                   product-by-process claims under §102/103, based on similarity of reactants,                                     
                   reaction conditions, and properties, amounted to a prima facie case of                                          
                   unpatentability.                                                                                                

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