Patents by Inventor William F. Matthews, III

William F. Matthews, III 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).

  • Apparatus and method for finding a signal emission source
    Patent number: 5625364
    Abstract: An apparatus and method are described for direction finding the source of emf emissions including a monotone signal by detecting the phase changes of the monotone signal during movement relative to the source. A software embodiment measures the amount of phase change.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: April 29, 1997
    Assignee: Lockheed Sanders, Inc.
    Inventors: David L. Herrick, William F. Matthews, III