Ex Parte McCullough - Page 4

               Appeal 2007-3874                                                                            
               Application 10/288,027                                                                      

               and does not otherwise specify any additional structure.  See, e.g., Corning                
               Glass Works v. Sumitomo Elect. U.S.A., Inc., 868 F.2d 1251, 1257, 9                         
               USPQ2d 1962, 1966 (Fed. Cir. 1989); In re Stencel, 828 F.2d 751, 754-55, 4                  
               USPQ2d 1071, 1073 (Fed. Cir. 1987).                                                         
                      With respect to the ground of rejection under § 112, first paragraph,                
               written description requirement, the Examiner contends the claim language                   
               “thermally conductive filler material uniformly distributed throughout said                 
               base polymer matrix” is without basis in the Specification which “does not                  
               explicitly disclose this language” and “without an explicit disclosure . . . one            
               of ordinary skill in the art would have no guidance of the type of filler                   
               material distribution, since different types of distributions achieve different             
               desired heat transfer characteristics.”  (Answer 3 and 6.)  Appellant contends              
               “[i]t is well known and accepted within the relevant art that a filled polymer              
               is a polymer that includes a filler material that is well dispersed throughout              
               the matrix of the polymer material.”  (Br. 4.)                                              
                      We agree with Appellant.  The determination of the optimum                           
               distribution of thermally conductive filler in a resin used to mold a heat sink             
               is within the ordinary skill in this art and need not be specifically set forth in          
               the Specification.  See, e.g., In re Howarth, 654 F.2d 103, 105, 210 USPQ                   
               689, 691 (CCPA 1981) (“An inventor need not . . . explain every detail [of                  
               the invention] since he is speaking to those skilled in the art. What is                    
               conventional knowledge will be read into the disclosure.”).  Thus, the                      
               Examiner has not shown that the claims encompass an embodiment outside                      
               of the scope of the written description in the Specification and, therefore, has            
               not established a prima facie case of non-compliance with this statutory                    


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