Barton et al or Fischhoff et al v. Adang et al. - Page 136




          Interference 103,781                                                        

                         b) removing ATTTA sequences contained in said                
                    wild-type gene while retaining a sequence which                   
                    encodes said protein.                                             
          Claim 3 of Fischhoff’s involved application comprises modifying             
          the structural gene sequence of a native Bt gene encoding                   
          insecticidal protein by both (1) removing polyadenylation signals           
          from the structural gene sequence while retaining a sequence                
          encoding insecticidal protein, and (2) removing ATTTA sequences             
          from the structural gene sequence while retaining a sequence                
          encoding insecticidal protein.                                              
               Initially, we presume that the preponderance of the evidence           
          before us supports Adang’s allegation that it was first to                  
          conceive the invention defined by Claim 3 of Fischhoff’s involved           
          application, which alternatively defines the invention of                   
          Count 2.  Thus, we proceed to the question of Adang’s reasonable            
          diligence towards reduction of the invention of Claim 3 to                  
          practice.  We fail to see how Adang’s various experiments and               
          tests designed to determine the cause of premature termination of           
          transcription and inefficient expression of native Bt genes                 
          encoding insecticidal protein in plants transformed by said                 
          native Bt genes and the region and the regions most responsible             
          for those problems and most easily fixed show that Adang                    
          exercised reasonable diligence towards reducing the invention               
          of Claim 3 of Fischhoff’s involved application to practice                  

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