Patents by Inventor Harry G. Posthumus

Harry G. Posthumus 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).

  • Communication system
    Patent number: 4358857
    Abstract: 1.
    Type: Grant
    Filed: May 9, 1958
    Date of Patent: November 9, 1982
    Assignee: The Magnavox Company
    Inventors: Joseph P. Gleason, Harry G. Posthumus
  • Communication system
    Patent number: 4245346
    Abstract: 1.
    Type: Grant
    Filed: February 7, 1962
    Date of Patent: January 13, 1981
    Assignee: Magnavox Government and Industrial Electronics Co.
    Inventors: Robert J. Grady, Harry G. Posthumus