Patents by Inventor John D. Elvin

John D. Elvin 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).

  • Integrated inward turning inlets and nozzles for hypersonic air vehicles
    Patent number: 7866599
    Abstract: A hypersonic waverider aircraft is disclosed that includes a first engine and an inlet including a throat. The inlet is configured to generate three-dimensional flow compression during hypersonic flight with a weak shock wave that begins at the leading edge surfaces of the inlet and coalesces ahead of the throat, and a weak shock wave that begins at the point of coalescence of the weak shock wave and extends to the throat. The inlet includes a v-shaped lip open to freestream airflow in one side of the inlet.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: January 11, 2011
    Assignee: Lockheed-Martin Corporation
    Inventor: John D. Elvin
  • Single stage to orbit spacecraft
    Patent number: D396685
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: August 4, 1998
    Assignee: Lockheed Martin Corporation
    Inventors: Robert I. Baumgartner, John D. Elvin, Jordan S. Reaser