definiens: shall mean ( as an adjective or as a verb including conjugations and variations such as or ) ( a ) with respect to Patent Rights and/or Know - How, thepossession by a Party of the ability to grant a license or sublicense of such Patent Rights and/or Know - How without violating the terms of any agreement or arrangement between such Party and any otherparty and ( b ) with respect to proprietary materials, the possession by a Party of the ability to supply suchproprietary materials to the other Party as provided herein without violating the terms of any agreement orarrangement between such Party and any other party . Notwithstanding anything in this Agreement to thecontrary, in the event of a Change of Control of a Party, such Party shall be deemed to not own or Controlany intellectual property right that is owned or Controlled by the Change of Control Group except to theextent the Change of Control Group intermingles its intellectual property with the Party ’s intellectualproperty.1.31Co - Promotion Exercise PeriodThe term shall mean, with respect to a Shared Product, the periodcommencing upon Dicerna ’s exercise of its Cost Share Option and ending upon the later of ( i ) [ * * * ] afterRoche provides Dicerna with the [COMPANY] Estimate pursuant to Section 10.6.2(a ) and ( ii ) [ * * * ] after theRoche Response Date ( if Dicerna provides timely Shared Product Questions )