HUANG et al. V. PRASIT et al. - Page 9




                    12. All the claims of the '850 application and all                
          the claims of the '931 application correspond to the count                  
          (Paper 1 at 15).                                                            
                   General explanation of the involved technology                     
                    13. The Huang and Prasit compounds are said to be                 
          selective cyclooxygenase-2 ("COX-2") inhibitors.                            
                    14. The '850 specification and the '931                           
          specification each contain a general explanation of the                     
          technology as  summarized below ('850 at 1-2 and '931 at 1-2).              
                    15. The formation of prostaglandins in the body is                
          believed to be catalyzed, in part, by the enzyme                            
          cyclooxygenase.  Prostaglandins have been implicated in tissue              
          inflammation.                                                               
                    16. It is believed that cyclooxygenase inhibitors                 
          function as anti-inflammatory agents by inactivating the                    
          enzymatic activity of cyclooxygenase.                                       
                    17. There are at least two types of cyclooxygenase                
          inhibitors, i.e., COX-1 inhibitors and COX-2 inhibitors.                    
                    18. COX-2 inhibitors are believed to have the same                
          anti-inflammatory effect as COX-1 inhibitors; however, COX-2                
          inhibitors seem to have fewer and less severe negative                      
          gastrointestinal side effects (e.g., ulcer formation) than                  
          COX-1 inhibitors.                                                           

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