KEITH et al. V. COELHO - Page 15




          Interference No. 103,270                                                    



                    Luer adapter can be removed and the balloon                       
                    remains inflated.                                                 
                    As mentioned above, these pages are signed by Enger               
          and dated "12-2-88."  Enger testified as to CX-65 and 66 (CR-               
          158):                                                                       
                    4.  Exhibits 65 and 66 are copies of two                          
                    notebook pages from Mr. Coelho's notebook                         
                    that I read, understood and then signed and                       
                    dated on December 2, 1988.  It is my                              
                    recollection that when Mr. Coelho showed me                       
                    the notebook entries and requested me to                          
                    witness them, I was already aware of his                          
                    ideas as he had already disclosed them to                         
                    me.  Mr. Coelho had previously explained                          
                    his idea for the catheter exchange                                
                    procedure and had explained to me that one                        
                    such mechanism used in the procedure to                           
                    freeze the position of the guidewire could                        
                    be in the form of a balloon within the                            
                    guide catheter.                                                   
                    5.  As part of my responsibility at                               
                    USCI, I was requested from time to time to                        
                    review                                                            
                    and witness laboratory notebook entries of                        
                    others.  It was at all times, and still is,                       
                    my practice to read the notebook entry to                         
                    make sure that I understand it.  Only then                        
                    do I sign and date that laboratory notebook                       
                    entry.                                                            
                    It is fundamental that to establish conception it                 
          must be shown by corroborated evidence that the party had                   
          possession of every feature recited in the count, and                       
                                          15                                          





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