Ex Parte Zhang et al - Page 9

             Appeal No. 2007-0179                                                          Page 9              
             Application No. 10/601,856                                                                        

                   For the foregoing reasons and the reasons set forth in the Answer, we affirm                
             the rejection of claim 1.  Because claim 3 was not separately argued, it falls with               
             claim 1.                                                                                          

             Rejection over Jokura in view of Takada                                                           
                   Claim 6 stands rejected under 35 U.S.C. § 103(a) as obvious over Jokura in                  
             view of Takada.                                                                                   
                   Jokura was discussed above.  “[E]xample 3 teaches a sunscreen lotion                        
             comprising an organic acid, 0.5% of an organic acid salt, and 2% 4-tert-butyl-4-                  
             methoxybenzoyl-methane, among other components.”  Answer 6.  Takada teaches                       
             4-[1,1-dimethlyethyl)-4’-methoxydibenzoylmethane as a sunscreen to protect skin                   
             against ultraviolet radiation.  Takada at 1.  The latter “is also known as 4,4-t-                 
             butylmethoxydibenzoylmethane as recited in dependent claim 6.”  Answer 6.  The                    
             methoxydibenzoylmethane compound is formulated with organic acids to prevent                      
             its discoloration and reduction in UV absorbance over time.  Takada at 2.  Malonic                
             acid is listed among 13 specifically named organic acids as useful to protect the                 
             methoxydibenzoylmethane compound.  Id.                                                            
                   The Examiner argues:                                                                        
                          It would have been obvious to one of ordinary skill in the art at                    
                   the time the invention was made to look to combine the teaching of                          
                   Jokura et a1 and [Takada] and utilize the instant sunscreen agent (4,4-                     
                   t-butyl-methoxydibenzoylmethane). One would have been motivated                             
                   to do so since [Takada] teaches methoxydibenzoylmethane is an                               
                   effective sunscreen agent. Thus, a skilled artisan would have been                          
                   motivated to substitute Jokura's methoxybenzoylmethane’s derivative                         
                   with the instantly claimed methoxydibenzoylmethane since [Takada]                           
                   teaches the instantly claimed sunscreens [as] an effective UV                               
                   absorber. Further, a skilled artisan would have expected similar results                    





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