5. Intellectual Property
5.1 Maintenance of Patents. Gilead shall not be obligated to maintain or enforce the Patents.
5.2 Cooperation. If either party becomes aware of a suspected infringement of any Patent, such party will notify the other party promptly, and following such notification, the parties agree to discuss the scope of such infringement. Gilead will have the sole right, but not the obligation, to bring an infringement action at its own expense, in its own name, and entirely under its own direction and control. Licensee will have no obligation to assist Gilead with the enforcement or defense of the Patents.