Patents by Inventor Eric S. Cramer

Eric S. Cramer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for constructing lightning strike protection for adhesively bonded graphite composite joints
    Patent number: 11575220
    Abstract: A bonded joint for use in bonding composite materials is provided and includes a composite rib having electrically conductive properties and a composite structure having electrically conductive properties. An electrically conductive preform is provided that facilitates a bond between the composite rib and the composite structure. A mesh composition that bonds the composite rib to the preform and that bonds the preform to the composite structure is provided and is electrically conductive to conduct current between the composite rib and the composite structure.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 7, 2023
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Bruce R. Crain, Eric S. Cramer, Michael C. Hofmeister, Kevin M. Gallenstein, Jessica N. Pearce, Sandra J. Stash, Daniel E. Suh