Ex Parte COWAN et al - Page 1




               The opinion in support of the decision being entered today was not written for publication and is not binding precedent of the Board.
                                                                                          Paper No. 23             
                         UNITED STATES PATENT AND TRADEMARK OFFICE                                                 
                                                   ____________                                                    
                              BEFORE THE BOARD OF PATENT APPEALS                                                   
                                            AND INTERFERENCES                                                      
                                                   ____________                                                    
             Ex parte THOMAS E. COWAN, RICHARD H. HOWELL, and CARLOS A. COLMENARES                                 
                                                   ____________                                                    
                                               Appeal No. 2002-2110                                                
                                             Application No. 09/224,748                                            
                                                   ____________                                                    
                                                     ON BRIEF                                                      
                                                   ____________                                                    
             Before HAIRSTON, BARRY, and SAADAT, Administrative Patent Judges.                                     
             BARRY, Administrative Patent Judge.                                                                   


                                              DECISION ON APPEAL                                                   
                    A patent examiner rejected claims 1, 2, 4-13, 17, and 18.  The appellants appeal               
             therefrom under 35 U.S.C. § 134(a).  We affirm-in-part.                                               


                                                 BACKGROUND                                                        
                    The invention at issue on appeal uses positron emission tomography ("PET") to                  
             detect cracks and other surface anomalies in metallic or mechanical parts.  During                    
             manufacturing and long-term storage of such parts, cracks, voids, and porous regions                  
             need to be detected.  This is of particular concern in maintaining nuclear stockpiles.                
             (Spec. at 1.)                                                                                         






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