"U.S. Collateral Documents" means, collectively, the U.S. Security Agreement, the U.S. Intellectual Property Security Agreement, the U.S. Mortgages, the U.S. Account Control Agreements, each of the mortgages, collateral assignments, Security Agreement Supplements, IP Security Agreement Supplements, security agreements, pledge agreements or other similar agreements delivered to the Collateral Agent pursuant to Section 6.12, and each of the other agreements, instruments or documents that creates or purports to create a Lien in favor of the Collateral Agent for the benefit of the U.S. Secured Parties.