Unless there shall occur and be continuing any Event of Default, and Collateral Agent has provided written notice to Borrower thereof, each Pledgor shall have the right to commence and prosecute in its own name, as the party in interest, for its own benefit and at the sole cost and expense of the Pledgors, such applications for protection of the Intellectual Property Collateral and suits, proceedings or other actions to prevent the infringement, counterfeiting, unfair competition, dilution, diminution in value or other damage as are necessary to protect the Intellectual Property Collateral or any part thereof. Upon the occurrence and during the continuance of any Event of Default and upon delivery of written notice thereof from Collateral Agent to Borrower, but subject to the last sentence of this Section 6.4 , each Pledgor’s right provided in the immediately preceding sentence shall cease immediately. Upon the occurrence and during the continuance of any Event of Default, Collateral Agent shall have the right but shall in no way be obligated to file applications for protection of the Intellectual Property Collateral and/or bring suit in the name of any Pledgor, Collateral Agent or the Secured Parties to enforce the Intellectual Property Collateral and any license thereunder. In the event of such suit, upon the occurrence and during the continuance of any Event of Default, each Pledgor shall, at the reasonable request of Collateral Agent, do any and all lawful acts and execute any and all documents reasonably requested by Collateral Agent in aid of such enforcement, and the Pledgors shall promptly reimburse and indemnify Collateral Agent, as the case may be, for all reasonable and documented costs and expenses incurred by Collateral Agent in the exercise of its rights under this Section 6.4 in accordance with Section 13.03 of the Credit Agreement. In the event that Collateral Agent shall elect not to bring suit to enforce the Intellectual Property Collateral, each Pledgor agrees, at the reasonable request of Collateral Agent, and upon the occurrence and during the continuance of any Event of Default, to take all commercially reasonable actions necessary, whether by suit, proceeding or other action, to prevent the infringement, counterfeiting, unfair competition, dilution, diminution in value of or other damage to any of the Intellectual Property Collateral by others and for that purpose agrees to diligently maintain any suit, proceeding or other action against any Person so infringing necessary to prevent such infringement.