Ex Parte KLIPPEL et al - Page 13




             Appeal No. 2001-1378                                                                                    
             Application No. 08/832,571                                                                              

                    We disagree.  The examiner has failed to provide evidence to support the                         
             statement that expressing the two subunits as a fusion protein in vivo overcomes the                    
             problem of inactivity which occurs when the two units are produced separately.   We                     
             note that the examiner does not rely on Hu, as a basis for this rejection.                              
                    After evidence or argument is submitted by the applicant in response to an                       
             obviousness rejection, "patentability is determined on the totality of the record, by a                 
             preponderance of evidence with due consideration to persuasiveness of the argument."                    
             In re Oetiker,  977 F.2d 1443, 1445,  24 USPQ2d 1443, 1444 (Fed. Cir. 1992);  see In                    
             re Piasecki,  745 F.2d 1468, 1471-72,  223 USPQ 785, 787 (Fed. Cir. 1984) ("All                         
             evidence on the question of obviousness must be  considered, both that supporting and                   
             that rebutting the prima facie case.").    On balance, we believe that the totality of the              
             evidence presented by the examiner and appellants weighs in favor of finding the                        
             claimed invention nonobvious over Klippel 93 and 94 in view of Kapeller, Varticovski                    
             and Aronheim.  The rejection is reversed.                                                               


                                                  CONCLUSION                                                         
                    The rejection of claims 1-9, 15-16, 22-30 and 33-34 under 35 U.S.C. § 103(a) as                  
             obvious over Hu in view of Kapeller, Varticovski and Aronheim is affirmed.  The                         
             rejection of claims 1-9, 15-16, 22-30 and 33-34 under 35 U.S.C. § 103(a) as obvious                     
             over Klippel 93 and 94 in view of Kapeller, Varticovski and Aronheim is reversed.                       


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