AMTEK RESEARCH INTERNATIONAL LLC recorded a security interest over 2 patents to U.S. BANK NATIONAL ASSOCIATION, recorded 2019-08-30.
Evidence
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). | Assignor: AMTEK RESEARCH INTERNATIONAL LLC | Assignee: U.S. BANK NATIONAL ASSOCIATION | Patents: 10975208, 11746206