Ex parte SCHOEMAKER et al. - Page 5



                Appeal No.  1999-1434                                                                         
                Application No. 08/307,044                                                                    

                      Here, the specification discloses that the claimed method can be practiced              
                with “[m]urine antibody against 17-1A antigen” generally.  See page 4, last                   
                paragraph.  That method is presumed to be enabled by the specification; the                   
                burden is on the examiner to show otherwise.                                                  
                      “When rejecting a claim under the enablement requirement of section 112,                
                the PTO bears an initial burden of setting forth a reasonable explanation as to               
                why it believes that the scope of protection provided by that claim is not                    
                adequately enabled by the description of the invention provided in the                        
                specification of the application; this includes, of course, providing sufficient              
                reasons for doubting any assertions in the specification as to the scope of                   
                enablement.  If the PTO meets this burden, the burden then shifts to the                      
                applicant to provide suitable proofs indicating that the specification is indeed              
                enabling.”  In re Wright, 999 F.2d 1557, 1561-62, 27 USPQ2d 1510, 1513 (Fed.                  
                Cir. 1993).  “[It] is incumbent upon the Patent Office, whenever a rejection on this          
                basis is made, to explain why it doubts the truth or accuracy of any statement in             
                a supporting disclosure and to back up assertions of its own with acceptable                  
                evidence or reasoning which is inconsistent with the contested statement.                     
                Otherwise, there would be no need for the applicant to go to the trouble and                  
                expense of supporting his presumptively accurate disclosure.”                                 
                Marzocchi, 439 F.2d at 224, 169 USPQ at 370.                                                  
                      In this case, the examiner has pointed to no evidence in support of her                 
                position that undue experimentation would be required to practice the claimed                 


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