Ex Parte RUFF 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              The opinion in support of the decision being entered today was not written for publication and is not binding precedent of the Board.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. 29            
                        UNITED STATES PATENT AND TRADEMARK OFFICE                                             
                                                 ____________                                                 
                             BEFORE THE BOARD OF PATENT APPEALS                                               
                                          AND INTERFERENCES                                                   
                                                 ____________                                                 
                               Ex parte ERIC J. RUFF and ROBERT S. RAYMOND                                    
                                                 ____________                                                 
                                             Appeal No. 2002-2176                                             
                                           Application No. 08/948,931                                         
                                                 ____________                                                 
                                                   ON BRIEF                                                   
                                                 ____________                                                 
            Before BARRETT, BARRY, and LEVY, Administrative Patent Judges.                                    
            BARRY, Administrative Patent Judge.                                                               


                                            DECISION ON APPEAL                                                
                   A patent examiner rejected claims 1, 3-9, 17-26, and 31-36.  The appellants                
            appeal therefrom under 35 U.S.C. § 134(a).  We reverse.                                           


                                               BACKGROUND                                                     
                   The invention at issue on appeal detects and removes computer viruses.                     
            Computer viruses can cause unrecoverable errors, delete files, create intermittent                
            problems, and otherwise cause frustration and damage. (Spec. at 1.)  According to the             
            appellants, a stealth virus hides its presence by altering the path between a computer's          
            application programs and its storage media.  In an IBM-compatible computer using the              






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