Patents by Inventor John D. Youngmark

John D. Youngmark 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).

  • Electrical cord connection retaining device
    Patent number: 5752848
    Abstract: A strap like device retaining the connected terminals of a pair of electrical cords from becoming unintentionally separated.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: May 19, 1998
    Assignee: John Douglas Youngmark
    Inventor: John D. Youngmark