Ex Parte Dahl - Page 11




                 Appeal No. 2005-2268                                                                                 Page 11                     
                 Application No. 09/976,683                                                                                                       



                         24. Byker describes an "electrochromic . . . panel or partition in the interior of a                                     
                 building. . . ."  Col. 3, ll. 25-27.  The panel may be transparent or "may be darkened, as                                       
                 desired, for privacy purposes."  Col. 2, ll. 21-22.  More specifically, the panel "includes a                                    
                 thin layer 14 of an electrochromic medium disposed between two glass or plastic                                                  
                 transparent substrates 16 and 18.  When electrical potential is applied to the                                                   
                 electrochromic medium 14, the electrochromic medium darkens and begins to absorb                                                 
                 light.  The higher the voltage, the darker the [panel] becomes.  When the electrical                                             
                 voltage is decreased to zero, the [panel] returns to its clear state."  Id. at ll. 38-45.                                        


                         25. The references establish the level of ordinary skill in the art.  See In re GPAC                                     
                 Inc., 57 F.3d 1573, 1579, 35 USPQ2d 1116, 1121 (Fed. Cir. 1995) (finding that the                                                
                 Board of Patent Appeals and Interference did not err in concluding that the level of                                             
                 ordinary skill was best determined by the references of record); In re Oelrich, 579 F.2d                                         
                 86, 91, 198 USPQ 210, 214 (CCPA 1978) ("[T]he PTO usually must evaluate ... the                                                  
                 level of ordinary skill solely on the cold words of the literature.").                                                           


                                                              II. DISCUSSION                                                                      
                         We address the claims in the following order:                                                                            
                         •        Group 1: claims 1, 2, 4-7, and 9                                                                                
                         •        Group 2: claims 8, 10, 11, and 13                                                                               
                         •        Group 3: claims 3 and 12.                                                                                       







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