CHEN et al. v BOUCHARD et al. - Page 26



          Interference No. 103,675                                                      

    patentable invention" as defined in 37 C.F.R. § 1.601(n). We find no                
    ambiguity in any of the counts.                                                     
              Count 2 is directed to two alternative descriptions of                    
    specific cyclopropyl derivatives of taxol. The first alternative                    
    corresponds to the compound claimed in Bouchard et al.'s involved                   
    application in claim 142 designated as corresponding to Count 2. The                
    second alternative corresponds to the compound claimed by Chen et al.               
    in claim 7 of their involved patent. Although the compounds are named               
    using different terminology, the different terminology defines the                  
    same compound, that is, the compound depicted at page 81 of Chen et                 
    al.'s priority brief. Because Count 2 does not recite that the                      
    compound is either purified or isolated, we interpret Count 2 to                    
    embrace either the purified and isolated compound, per se, or a                     
    mixture of compounds which includes the compound defined by Count 2.                
              Count 3A is directed to a genus of compounds, defined by two              
    different structural formulae. The first structural formula                         
    corresponds to the formula in Chen et al.'s claim 10 designated as                  
    corresponding to Count 3A. The second structural formula corresponds                
    to the formula in Bouchard et al.'s claim 141 designated as                         
    corresponding to Count 3A. The compounds depicted in Count 3A are the               
    so-called baccatin derivatives useful for preparing the compounds of                
    Count 2 and Count 4. Once again, the language of the count does not                 
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