Ex Parte YERXA et al - Page 3


                Appeal No.  2002-1121                                                     Page 3                  
                Application No.  09/171,169                                                                       

                                                  DISCUSSION                                                      
                       Claims 14-22, 24, 25 and 30 stand rejected under 35 U.S.C. § 103(a) as                     
                being rendered obvious by the Jacobus patent.                                                     
                       According to the rejection, Jacobus teaches the use of nucleoside                          
                phosphates, such as those required by the instantly claimed methods, “to hydrate                  
                retained mucous secretions and stimulate ciliary beat frequency which promotes                    
                the drainage of sinuses.”  Examiner’s Answer, page 4.  The rejection states:                      
                              Jacobus [ ] does not teach a method of treating corneal                             
                       injury per se; although a further method of treating corneal injury is                     
                       claimed, the treatment set forth in the instant claims is targeted to                      
                       lacrimal tissues.  As Jacobus [ ] teach[es] the use of nucleoside                          
                       phosphates to promote fluid/secretion drainage of the sinuses, and                         
                       sinus structures such as the sclera venus sinus or canal of                                
                       Schlemm- a venous channel that encircles the eye in the angle at                           
                       the sclera-cornea junction, which would be viewed as a part of the                         
                       cornea, the nexus between the differences in the prior art and the                         
                       invention as claimed are adequately bridged.                                               
                                                      * * * *                                                     
                              A person of ordinary skill in the art would have been                               
                       motivated to use nucleoside phosphates . . . to treat lacrimal                             
                       tissues since the prior art has taught the effectiveness of                                
                       nucleoside phosphates in promoting fluid/secretion drainage in                             
                       sinus structures present in the eye and nasal cavity.  Moreover, as                        
                       ciliary processes are also present in the eye and are part of the                          
                       network of drainage associated with structures in the eye such as                          
                       the cornea, and the prior art teaches that nucleoside phosphates                           
                       increase the cilial beat frequency and therefore promote drainage,                         
                       one of skill in the art would have been provided with a reasonable                         
                       expectation of success in treating lacrimal tissues with nucleoside                        
                       phosphates.                                                                                
                Examiner’s Answer, pages 4-5.                                                                     











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