PARINS et al. V. SLATER - Page 32




          Interference No. 104,190                                                    



          the estoppel argument, an  explanation of which is only found               
          in the reply brief.                                                         


          Decision on Motion Under 37 CFR § 1.634                                     
                    Parins' renewed motion to add Rydell as an                        
          additional inventor in the involved Parins patent has been                  
          deferred to this final decision.  Slater has opposed on two                 
          grounds, viz., the invention of Rydell in December 1991 is not              
          within the scope of the count, and there was no collaboration,              
          whatsoever, between  Parins and Poppe on the one hand and                   
          Rydell on the other.                                                        
                    As has already been determined with respect to                    
          conception and reduction to practice, it was our conclusion                 
          that the subject matter invented by Rydell in December 1991                 
          was not within the scope of the count in interference.  This                
          determination alone is enough for us to deny the motion.                    
                    We, herein, further determine that Slater’s second                
          opposition to the motion also has merit.  Parins argues in the              
          junior party’s main brief that different claims can have                    
          different inventive entities.  We agree.  However, in the                   


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