Ex parte EKELAND et al. - Page 5




          Appeal No. 96-1787                                                          
          Application No. 08/372,482                                                  


          through column 6, line 11.  Based on these teachings, it is                 
          evident that the ability of a particular surfactant to form                 
          vesicle structures is highly unpredictable; the more so when                
          considering siloxane surfactants of higher complexity than                  
          those of Hill, apparently as are those embraced by the instant              
          claims.  Thus, at best, it would have been obvious to try                   
          substitution of the Kanner surfactant polymers for those of                 
          Hill.  However, “obvious to try” is not a sufficient basis for              
          establishing a                                                              





















                                          5                                           





Page:  Previous  1  2  3  4  5  6  7  8  Next 

Last modified: November 3, 2007