Ex Parte RING - Page 3





                                                                                                 Interference No. 105,048                         
                 cc: (via Federal Express)                                                                                                        
                 Attorney for GENENTECH:                                                                                                          
                 Steven B. Kelber, Esq.                                                                                                           
                 Piper Rudnick LLP                                                                                                                
                 1200 Nineteenth St., N.W.                                                                                                        
                 Washington, D.C. 20036-2430                                                                                                      
                 Tel.: 202-861-3900                                                                                                               
                 Fax: 202-223-2085                                                                                                                

                 Attorney for CHIRON:                                                                                                             
                 Thomas E. Ciotti                                                                                                                 
                 MORRISON & FOERSTER LLP                                                                                                          
                 755 Page Mill Road                                                                                                               
                 Palo Alto, CA 94304                                                                                                              
                 Tel.: 650-813-5600                                                                                                               
                 Fax: 650-494-0792                                                                                                                



















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Last modified: November 3, 2007