Ex Parte LESIEUR - Page 6




          Appeal No. 2002-0249                                                         
          Application No. 09/321,390                                                   


          Accordingly, we affirm only those Section 103 rejections for                 
          substantially the reasons set forth in the Answer and below.                 


                          35 U.S.C. § 112, Second Paragraph                            
                    As the court stated in In re Moore, 439 F.2d 1232,                 
          1235, 169 USPQ 236, 238 (CCPA 1971), the determination of whether            
          the claims of an application satisfy the requirements of the                 
          second paragraph of Section 112 is                                           
               merely to determine whether the claims do, in fact, set                 
               out and circumscribe a particular area with a                           
               reasonable degree of precision and particularity.  It                   
               is here where the definiteness of language employed                     
               must be analyzed -- not in a vacuum, but always in                      
               light of the teachings of the prior art and of the                      
               particular application disclosure as it would be                        
               interpreted by one possessing the ordinary level of                     
               skill in the pertinent art. [Emphasis ours; footnote                    
               omitted.]                                                               
          The purpose of the second paragraph of Section 112 is to                     
          basically insure, with a reasonable degree of particularity, an              
          adequate notification of the metes and bounds of what is being               
          claimed.  See In re Hammack, 427 F.2d 1378, 1382, 166 USPQ 204,              
          208 (CCPA 1970).                                                             
               Here, the examiner criticizes the use of the terminology                
          “the fuel gas” and “the processed fuel gas stream,” but does not             
          explain why one of ordinary skill in the art would not understand            

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