Ex Parte Lan-Hargest et al - Page 3


                    Appeal No.  2003-2139                                                                    Page 9                     
                    Application No.  09/812,945                                                                                         
                                                    CLAIM CONSTRUCTION                                                                  
                           With reference to Texas Instruments Inc. v. United States Int’l Trade                                        
                    Comm’n, 988 F.2d 1165, 1172, 26 USPQ2d 1018, 1023-1024 (Fed. Cir. 1993),                                            
                    appellants argue:                                                                                                   
                                    The treatment described in the “thereby” clause of claim 1 is                                       
                           the result of contacting cells with an effective amount of a                                                 
                           compound of formula (I).  The recitation of treatment as the result                                          
                           obtained by contacting cells with an effective amount of a                                                   
                           compound of formula (I) does not change the scope of the                                                     
                           invention otherwise defined by claim 1.  The treatment of a                                                  
                           disorder, and the identity of the disorder, is not the invention being                                       
                           claimed.                                                                                                     
                    The claimed method comprises two steps: (1) contacting cells with an effective                                      
                    amount of a compound of formula (I); and (2) determining whether the level of                                       
                    acetylated histones in the treated cells is higher than in untreated cells under the                                
                    same conditions.  As explained by the examiner (Answer, page 5), “[c]onstruing                                      
                    the claims in light of appellant [sic] arguments would lead the [s]killed [a]rtisan to                              
                    understand and practice the instant method as a screening method, i.e., a                                           
                    method of assaying compounds of formula I to measure their histone                                                  
                    deacetylation inhibitory effect.”  In contrast, the examiner finds (id.), “[r]eading                                
                    the claim in its entirety and including the phrase ‘thereby treating one or more                                    
                    disorders’ in the claim language, leads the skilled artisan to understand and                                       
                    practice the instant invention as a method of treating histone deacetylase                                          
                    mediated disorders in general and cancer (the elected disorder), in particular.”                                    











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