definiens: means any [COMPANY] Patent Rights that ( a ) contain one or moreclaims that cover one or more Collaboration Compounds, Candidate Drugs or Products ( including Option CompoundCandidate Drugs and Option Compound Products ) or Additional Compounds or Additional Products with respect to anyof the foregoing, or the Exploitation of one or more Collaboration Compounds, Candidate Drugs or Products ( includingOption Compound Candidate Drugs and Option Compound Products ) or Additional Compounds or Additional Productswith respect to any of the foregoing, and ( b ) do not contain any claims that cover any Compound, or the Exploitationof any Compound, that is Known by [COMPANY] not to be a Collaboration Compound, Candidate Drug or Product(including any Option Compound Candidate Drug and Option Compound Product ) or an Additional Compound orAdditional Product with respect to any of the foregoing