Ex parte THOMAS J. GREENBOWE et al. - Page 9

          Appeal No. 96-2865                                                          
          Application No. 08/081,561                                                  

               trying experiments again, if necessary, until they feel                
               comfortable with the concepts.  Freedom to try new                     
               strategies and to experiment is greater with the                       
               videodisc-based lessons than in the wet lab, which is                  
               strictly limited by time, equipment and the                            
               availability of chemicals [page 21].                                   
               Anticipation is established only when a single prior art               
          reference discloses, expressly or under principles of inherency,            
          each and every element of a claimed invention.  RCA Corp. v.                
          Applied Digital Data Systems, Inc., 730 F.2d 1440, 1444, 221 USPQ           
          385, 388 (Fed. Cir. 1984).  In other words, there must be no                
          difference between the claimed invention and the reference                  
          disclosure, as viewed by a person of ordinary skill in the field            
          of the invention.  Scripps Clinic & Research Found. v. Genentech            
          Inc., 927 F.2d 1565, 1576, 18 USPQ2d 1001, 1010 (Fed. Cir. 1991).           
               Independent claim 1 recites an apparatus comprising, inter             
          alia, “means by which the user can assemble a plurality of the              
          objects pictured on the display means into an operating pictorial           
          representation of an operating experimental configuration, the              
          experimental configuration being characterized by a relationship            
          among a plurality of experimental parameters” and “means by which           
          the user can simulate the performance of an experiment using the            
          pictorial representation of the experimental configuration                  
          . . . .”  Independent claim 17 recites a method comprising, inter           
          alia, the steps of “enabling the student to assemble a plurality            

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