Ex Parte CALLAGHAN et al - Page 8




                 Appeal No. 2003-1031                                                                                  Page 8                     
                 Application No. 09/050,841                                                                                                       


                 explicitly and inherently. . . ."  In re Zurko, 258 F.3d 1379, 1386, 59 USPQ2d 1693,                                             
                 1697(Fed. Cir. 2001) (citing Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ                                               
                 459, 467 (1966); In re Dembiczak, 175 F.3d 994, 998, 50 USPQ 1614, 1616 (Fed. Cir.                                               
                 1999); In re Napier, 55 F.3d 610, 613, 34 USPQ2d 1782, 1784 (Fed. Cir. 1995)).                                                   


                         Here, Rosenberg discloses "[a] method of tracking a web browser across distinct                                          
                 domains of a network of computers. . . ."  P. 4, ll. 18-19.  Figure 1 of the reference                                           
                 represents the distinct domains as "two server computers 24A and 24B, although a                                                 
                 typical embodiment of the invention would include a larger number of server computers,                                           
                 say server computers 24A through 24N."  P. 6, ll. 8-10.  "[I]t is clear from the reference                                       
                 that . . . the servers have distinct domain names. . . ."  (Supp. Appeal Br. at 9.)                                              
                 Because the domains can comprise a variable number (viz., "N") of servers, we find                                               
                 that each server lacks knowledge of the other servers.                                                                           


                         Furthermore, the server computers ("servers") are unable to directly                                                     
                 communicate state information between themselves.  Instead, the servers                                                          
                 communicate state information through a database.  "As shown in Figure 1, the                                                    
                 database 25 is accessible by each server computer 24 in the network," p. 7, ll. 20-21;                                           
                 "each server can access the information in the database that is set by other servers."                                           
                 P. 11, ll. 22-23.                                                                                                                








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