Ex Parte Stryer et al - Page 14

                Appeal 2007-1819                                                                             
                Application 09/886,055                                                                       
                receptors,” a very limited genus.  (Id. at 9.)  Thus, the “skilled artisan would             
                attempt to obtain alternate compounds with improved properties” by using                     
                Burford’s disclosed 24 polypeptides suggested to be olfactory receptors.                     
                (Id.)                                                                                        
                      Based on these conflicting positions, the single issue before us with                  
                respect to claim 23 is, would it have been obvious to one of ordinary skill in               
                the art to use Burford’s SEQ ID NO: 27 (Appellants’ SEQ ID NO:55) in the                     
                assay method taught by Krautwurst, as required by claim 23?                                  
                      The following findings of fact are supported by the record and by the                  
                scope and content of the prior art and level of skill in the art:9                           
                      1.  Krautwurst’s teachings “provide[s] a model system for the study of                 
                ligand specificity and structure-function relationships for olfactory                        
                receptors.”  (Krautwurst 918 (col. 1).)                                                      
                      2.  As admitted by Appellants, Krautwurst discloses all the limitations                
                of claim 23 except the use of “an olfactory receptor as set forth in SEQ ID                  
                NO:55.”  (Br. 7.  See also Answer 4-5 (citing Krautwurst 918-20 & Table                      
                3).)                                                                                         
                      3.  Thus, the single difference between Krautwurt’s assay method and                   
                that of Appellants is Appellants’ use of SEQ ID NO:55.  (FF 2.)                              
                      4.  Burford expressly discloses a limited number polypeptides having                   
                olfactory receptor signatures and homology to known olfactory receptors,                     
                including SEQ ID NO:55 (identified by Burford as SEQ ID NO:27).  (See,                       
                e.g., Burford 38-42 (Table 3); Answer 7-9 (quoted in part above).)                           
                      5.  Burford’s SEQ ID NO:27 is from “ORGANISM:  Homo sapiens”                           
                (Burford 76 (Table 7)), and the nucleic acid encoding it (SEQ ID NO:66)                      
                                                                                                            
                9 Findings of Fact are abbreviated “FF.”                                                     

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