Ex parte SAGO et al. - Page 8


            Appeal No. 1999-2406                                                                      
            Application No. 08/825,256                                                                


                  Accordingly, we cannot uphold the examiner's rejection                              
            under 35 U.S.C. § 112, first paragraph, of claims 1 through 4,                            
            10, 11, 20, and 21 as violating the written description                                   
            requirement.                                                                              
                  Concerning the rejection under 35 U.S.C. § 112, first                               
            paragraph, of all the appealed claims as failing to comply with                           
            the enablement requirement, we agree with the appellants (appeal                          
            brief, pages 12-13; reply brief, pages 2-5) that one skilled in                           
            the relevant art would not be subject to any undue                                        
            experimentation to make and/or use the claimed invention.2  Here,                         
            the specification contains explicit direction or guidance on how                          
            "to minimize the effects of surface tension" or "to cancel out                            
            surface tension of the solution."  (E.g., page 5, lines 19-24;                            
            page 7, line 10 to page 11, line 23.)  This direction or                                  
            guidance is accompanied by actual working examples and drawings                           
            to further enlighten one skilled in the relevant art.                                     


                                                                                                     
                  2  The question of whether making and using the invention                           
            would have required "undue experimentation" depends on several                            
            underlying factual inquiries including: (1) the quantity of                               
            experimentation necessary; (2) the amount of direction or                                 
            guidance presented; (3) the presence or absence of working                                
            examples; (4) the nature of the invention; (5) the state of the                           
            prior art; (6) the relative skill of those in the art; (7) the                            
            predictability or unpredictability of the art; and (8) the                                
            breadth of the claims.  In re Wands, 858 F.2d 731, 735, 736-37,                           
            8 USPQ2d 1400, 1402, 1404 (Fed. Cir. 1988).                                               

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