Ex Parte Snow - Page 5

                Appeal 2006-1966                                                                                  
                Application 10/246,506                                                                            

                particular, the Supreme Court emphasized that “the principles laid down in                        
                Graham reaffirmed the ‘functional approach’ of Hotchkiss, 11 How. 248.”                           
                KSR, 127 S.Ct. at 1739, 82 USPQ2d at 1395 (citing Graham v. John Deere                            
                Co., 383 U.S. 1, 12 (1966) (emphasis added)), and reaffirmed principles                           
                based on its precedent that “[t]he combination of familiar elements                               
                according to known methods is likely to be obvious when it does no more                           
                than yield predictable results.”  Id.  The Court explained:                                       
                              When a work is available in one field of endeavor,                                  
                              design incentives and other market forces can                                       
                              prompt variations of it, either in the same field or a                              
                              different one.   If a person of ordinary skill can                                  
                              implement a predictable variation, §103 likely bars                                 
                              its patentability.   For the same reason, if a                                      
                              technique has been used to improve one device,                                      
                              and a person of ordinary skill in the art would                                     
                              recognize that it would improve similar devices in                                  
                              the same way, using the technique is obvious                                        
                              unless its actual application is beyond his or her                                  
                              skill.                                                                              
                Id. at 1740, 82 USPQ2d at 1396.  The operative question in this “functional                       
                approach” is thus “whether the improvement is more than the predictable use                       
                of prior art elements according to their established functions.”  Id.                             
                                                  ANALYSIS                                                        
                       We agree with the examiner that the combined teachings of                                  
                MacKenzie and Schlueter would have rendered the subject matter of the                             
                claims prima facie obvious.  In our view, the claimed subject matter is                           
                merely a combination of familiar elements according to known methods and                          
                would likely have been obvious to one of ordinary skill in the art as yielding                    
                a mere predictable result.                                                                        

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