Patents by Inventor David L. Tenney

David L. Tenney 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).

  • Logic controlled degaussing system
    Patent number: 4458178
    Abstract: A CRT in a CRT device is degaussed following a timed period of device inactivity and while the screen of the CRT is darkened, as well as at device turn-on or at manual activation. The screen stays darkened until data is inputted, and degaussing reoccurs during each subsequent timed period of inactivity.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: July 3, 1984
    Assignee: Motorola, Inc.
    Inventors: David L. Tenney, James Krause, John R. Welk