Patents by Inventor Sharon L. Langenbeck

Sharon L. Langenbeck 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).

  • Aluminum alloy
    Patent number: 4799978
    Abstract: The aluminum alloy comprises by weight 81 to 91.8 percent aluminum, 4 to 8 percent iron, 4 to 8 percent nickel and 0.1 to 3 percent chromium. The preferred nominal composition is 86 percent aluminum, 6 percent iron, 6 percent nickel, and 2 percent chromium.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: January 24, 1989
    Assignee: Lockheed Corporation
    Inventors: Sharon L. Langenbeck, Gregory J. Hildeman