Patents by Inventor Relf Hinz

Relf Hinz 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: 4690640
    Abstract: An oral vestibule plate for prophylactic purposes includes a curved rigid shield. A cross piece is disposed on the center plane of the shield along the secant of its curvature. The cross piece comprises a wire bent to hold back the tip of the tongue thereby preventing damage otherwise caused by the tongue.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: September 1, 1987
    Inventor: Relf Hinz