Ex Parte Ahmed et al - Page 2



                    Appeal No. 2004-2173                                                                                                                                  
                    Application No. 09/970353                                                                                                                             

                    drilling and oil production industry.  Independent claims 1, 6                                                                                        
                    and 26 are representative of the subject matter on appeal and a                                                                                       
                    copy of those claims can be found in the Appendix to appellants'                                                                                      
                    brief.                                                                                                                                                

                    The prior art references of record relied upon by the                                                                                                 
                    examiner in rejecting the appealed claims are:                                                                                                        
                    Bahder et al.                                    3,846,578                                         Nov.  5, 1974                                      
                    (Bahder)                                                                                                                                              
                    Morrisette et al.                                4,403,110                                         Sep.  6, 1983                                      
                    (Morrisette)                                                                                                                                          
                    Dery et al. (Dery)                               5,006,286                                         Apr.  9, 1991                                      
                    Crawley et al.                                   6,442,304                                         Aug. 27, 2002                                      
                    (Crawley)                                                                                                                                             

                    Claims 1, 2, 5 through 14, 19 through 21, 23 and 26 stand                                                                                             
                    rejected under 35 U.S.C. § 103(a) as being unpatentable over                                                                                          
                    Bahder in view of Crawley.1                                                                                                                           
                                                                                                                                                                         
                    Claims 3, 4, 24 and 25 stand rejected under 35 U.S.C.                                                                                                 
                    § 103(a) as being unpatentable over Bahder in view of Crawley as                                                                                      
                    applied above and further in view of Dery.                                                                                                            
                              1 Although the examiner's answer (page 3) also included                                                                                     
                    claim 27 as being subject to this rejection, it is clear from the                                                                                     
                    record of the present application that method claim 27 stands                                                                                         
                    allowed, and that the examiner's inclusion of this claim in the                                                                                       
                    above-noted rejection was in error.                                                                                                                   
                                                                                    22                                                                                    




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