Ex parte OUYANG et al. - Page 9




                 Appeal No. 96-3906                                                                                                                     
                 Application No. 08/038,588                                                                                                             


                 would not have made the modification obvious unless the prior                                                                          
                 art suggested the desirability of the modification.  In re                                                                             
                 Gordon, 733 F.2d 900, 902, 221 USPQ 1125, 1127 (Fed. Cir.                                                                              
                 1984).  Here, the examiner does not point to any portion or                                                                            
                 portions of the cited references establishing how or why the                                                                           
                 prior art "suggested the desirability of the [proposed]                                                                                
                 modification."  In re Gordon, 733 F.2d at 902, 221 USPQ at                                                                             
                 1127.                                                                                                                                  
                          We also invite attention to King's disclosure suggesting                                                                      
                 that the HLB number of the surfactant, or at least one of the                                                                          
                 combination of surfactants disclosed by King, is preferably                                                                            
                 controlled within at least about 12 up to about 15, and                                                                                
                 especially from about 13 to about 15 (King, column 4, line 62                                                                          
                 through column 5, line 41).  This being the case, it would                                                                             
                 appear that King tends to teach away from, not toward, the                                                                             
                 claimed                                                                                                                                
                 invention which requires a nonionic surfactant "having an HLB                                                                          
                 of about 3 to about 8."3                                                                                                               

                          3On return of this application to the Examining Corps,                                                                        
                 the examiner should ensure that dependent claim 6 is canceled.                                                                         
                 Claim 6 reiterates the limitation appearing in claim 1 that                                                                            
                 the nonionic surfactant has an HLB from about 3 to about 8.                                                                            
                                                                         -9-                                                                            





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