Ex Parte Chandrasekaran - Page 6

               Appeal 2006-0959                                                                             
               Application 10/075,914                                                                       

               reinforcement to prevent collapse.                                                           
               Our review of the specification uncovers no disclaimer or disavowal of the                   
               ordinary and customary meaning of the term “patency.”  In fact, the use of                   
               the term in Appellant’s specification is consistent with the ordinary and                    
               customary meaning.  In re Paulsen, 30 F.3d 1475, 1480, 31 USPQ2d 1671,                       
               1674 (Fed. Cir. 1994)(“An inventor may choose to be his own lexicographer                    
               if he defines the specific terms used to describe the invention ‘with                        
               reasonable clarity, deliberateness, and precision.’”).  Our reviewing court                  
               counsels us that the PTO should avoid the temptation to limit broad claim                    
               terms solely on the basis of specification passages and tells us that, absent                
               claim language carrying a narrow meaning, the PTO should only limit the                      
               claim based on the specification when those sources expressly disclaim the                   
               broader definition.  In re Bigio, 381 F.3d 1320, 1324-25, 72 USPQ2d 1209,                    
               1210-11 (Fed. Cir. 2004).  During prosecution, Appellant is free to amend                    
               the claims to include language carrying a narrower meaning.  “As an initial                  
               matter, the PTO applies to the verbiage of the proposed claims the broadest                  
               reasonable meaning of the words in their ordinary usage as they would be                     
               understood by one of ordinary skill in the art, taking into account whatever                 
               enlightenment by way of definitions or otherwise that may be afforded by                     
               the written description contained in the applicant's specification.”  In re                  
               Morris, 127 F.3d 1048, 1053-54, 44 USPQ2d 1023, 1026-1028 (Fed. Cir.                         
               1997).  We, therefore, determine that “maintaining patency” encompasses                      
               maintaining the stent open, expanded, and unblocked by any method                            
               including by preventing endothelial cell growth or accumulation of debris in                 
               the lumen.  Ragheb discloses that blockages due to restenosis and occlusion                  
               occur due to the stent implantation as further found by the Examiner                         
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