Patents by Inventor Erick F. Barkman

Erick F. Barkman 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).

  • Armor
    Patent number: 4090011
    Abstract: 1. Armor possessing high resistance to penetration, comprising a metallic composite having a layer of aluminous metal bonded to a layer of a precipitation-hardenable ferrous alloy, said composite in bonded condition being susceptible to a thermal hardening treatment to increase the strength of said ferrous alloy layer.
    Type: Grant
    Filed: July 2, 1964
    Date of Patent: May 16, 1978
    Assignee: Reynolds Metals Company
    Inventors: Erick F. Barkman, John Harry Jackson, Bennie Ray Ward, Jr.