CytomX Enforcement. CytomX shall have the sole right to enforce the CytomX Patents at its sole cost. CytomX shall not have any right to enforce any Regeneron Patent or Collaboration Patent. CytomX shall at all times keep Regeneron informed as to the status of such enforcement pursuant to this [Section 8.7.2]. CytomX may, at its own expense, institute suit against any infringer or alleged infringer and control and defend such suit in a manner consistent with the terms and provisions hereof and recover any damages, awards or settlements resulting therefrom, subject to [Section 8.7.5]. Regeneron shall reasonably cooperate in any such litigation at CytomX’s expense. CytomX shall not enter into any settlement of any claim described in this [Section 8.7.2] that ​.

Regeneron Enforcement. Regeneron shall have the sole right to enforce the Regeneron Patents ​. Regeneron shall not have any right to enforce any CytomX Patent. Regeneron shall at all times keep CytomX informed ​. Regeneron may, at its own expense,

institute suit against any infringer or alleged infringer and control and defend such suit in a manner consistent with the terms and provisions hereof and recover any damages, awards or settlements resulting therefrom, subject to [Section 8.7.5]. CytomX shall reasonably cooperate in any such litigation at Regeneron’s expense. Regeneron shall not enter into any settlement of any claim described in this [Section 8.7.3] ​. In the event that ​. CytomX shall not enter into any settlement of any claim described in this [Section 8.7.3] that ​.

Notice and Cooperation. CytomX shall provide to Regeneron prompt written notice of any actual, potential, or threatened infringement of the Product Trademarks in the Territory and of any actual or threatened claim that the use of the Product Trademarks in the Territory violates the rights of any Third Party, promptly after becoming aware of the foregoing. CytomX agrees to cooperate fully with Regeneron, at Regeneron’s sole cost and expense, with respect to any enforcement action or defense commenced pursuant to this [Section 8.9].