definiens: means, with respect to a Designated NV Compound designated by Schering, any Patents Controlled by P TC, either as of the Effective Date or thereafter during the Term, which ( x ) claim inventions that are Invented prior to the date that Schering design ates such NV Compound as a Designated NV Compound, and ( y ) claim or cover ( i ) the composition of matter of such Designated NV Compound ( or a Related Compound ), ( ii ) the use of such Designated NV Compound ( or a Related Compound ) in t he Non - Viral Field, ( iii ) a method of treating, diagnosing or preventing any di sease or condition in the Non - Viral Field using such Designated NV Compound ( or a Related Compound ) or ( iv ) a method of Manufacturing such Designated NV C ompound ( or a Related Compound )