Ex Parte WANG et al - Page 4


                 Appeal No. 2001-1973                                                      Page 4                   
                 Application No. 08/734,184                                                                         

                 “[m]erely pointing out differences in what the claims cover is not an argument as                  
                 to why the claims are separately patentable.”  Appellants make no effort to                        
                 explain how the different limitations of the claims establish separate issues of                   
                 patentability.                                                                                     
                       Since Appellants have not complied with the requirement of Rule 192(c)(7)                    
                 to explain why the claims are believed to be separately patentable, all of the                     
                 claims subject to each ground of rejection will stand or fall together.                            
                 In particular, the claims rejected for anticipation will stand or fall with claim 1.               
                       Claim 1 is directed to a method for “continuous culturing of microalgae.”                    
                 The claimed method comprises six steps:  (1) providing an open container, (2)                      
                 providing an aqueous culture medium comprising a seed stock of microalgae, (3)                     
                 exposing the culture medium to light, (4) maintaining the pH of the culture                        
                 medium at a fixed level, (5) harvesting a portion of the medium after a                            
                 predetermined period, and (6) adding replacement seed stock medium to the                          
                 unharvested portion of the medium.  The claim also states that the step of initially               
                 providing the culture medium “further comprises the step of establishing                           
                 concentrations of constituent elements in the aqueous medium for unialgal                          
                 harvesting for promoting optimum growth rates of the microalgae.”                                  














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