Ex Parte CHANG - Page 2




                  A.    Background                                                                     
                                            The parties                                                
                        1.    The junior party is Wen-Lung Chang (hereinafter                          
            "Chang"), who is involved in the interference on the basis of his                          
            Patent 5,828,034.                                                                          
                        2.    The senior party is Kenneth B. Winer (hereinafter                        
            "Winer"), who is involved in the interference on the basis of his                          
            application 08/769,467.                                                                    
                        3.    The Winer application was filed on 20 December                           
            1996.                                                                                      
                        4.    The application which matured into the Chang                             
            patent was filed on 3 January 1997.                                                        
                        5.    Thus, Winer is senior party by fourteen (14) days.                       

                                          Burden of proof                                              
                        6.    Chang, as junior party, has a burden of                                  
            establishing priority by a preponderance of the evidence.  37 CFR                          
            § 1.657(b).                                                                                

                                                Count                                                  
                        7.    There is only one count.                                                 
                        8.    Count 1 reads:                                                           
                  An apparatus for use with a computer system comprising:                              
                  an input device having a housing and an electric                                     
                  heating element disposed within said housing of said                                 
                  input device and thermally coupled to a heat conductive                              
                  top portion of said input device for conduction of heat                              
                  from said heating element to said heat conductive top                                
                  portion.                                                                             
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