Patents by Inventor Marvin L. Barbee

Marvin L. Barbee 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).

  • Patent number: D253450
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: November 20, 1979
    Assignee: Marquette Electronics, Inc.
    Inventors: Donald A. Butcher, Marvin L. Barbee
  • Patent number: D260466
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: September 1, 1981
    Inventors: Donald A. Butcher, Marvin L. Barbee