NEMERSON et al. V. EDGINGTON et al. V. LAWN et al. - Page 18


                Interference No. 103,203                                                                                                      

                         First, we direct attention to our discussion, supra, that the burden is on Edgington et                              
                al. to establish that the Lawn et al. co-inventors possessed a best mode for practicing the                                   
                claimed invention at the time their application was filed, and that the teachings of the                                      
                involved ‘989 Application fail to disclose Lawn et al.’s best mode of making and using the                                    
                subject matter described in the claims corresponding to the count.  Reiffin v. Microsoft                                      
                Corp., 214 F.3d at 1346, 54 USPQ2d at 1918.  For purposes of determining the                                                  
                patentability of said claims under the first paragraph of § 112, the earlier-filed applications                               
                are irrelevant.                                                                                                               
                         Second, as to Edgington et al.’s argument with respect to the disclosure in the ‘989                                 
                Application to extract tissue factor protein from cells, we again direct attention to the                                     
                subject matter encompassed by claims 9, 11 through 14, 30 and 32 through 38,                                                  
                corresponding to the count.  Not one of said claims is directed to the human tissue factor                                    
                protein.  It is well established, and recently reiterated by the court in Eli Lily & Co. v. Barr                              
                Laboratories, __ F.3d ___, ___, 55 USPQ2d at 1616, “[i]t is concealment of the best                                           
                mode of practicing the claimed invention that section 112, ¶ 1 is designed to                                                 


                prohibit.”   Since all of the claims corresponding to Count 2 in the involved ‘989                                            
                Application are directed to a DNA sequence encoding human tissue factor, and since                                            
                Edgington et al. have not explained why the method of extracting the tissue factor protein is                                 
                necessary for one skilled in the art to carry out the best mode of making the claimed                                         
                invention, we do not find that they [Edgington et al.] have sustained their burden of                                         
                establishing that the Lawn et al. disclosure violates the best mode requirement of § 112,                                     
                first paragraph.  Eli Lily & Co. v. Barr Laboratories, 2000 U.S. App. LEXIS at 19021, 55                                      

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