Patents by Inventor Duane C. Grummons

Duane C. Grummons 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: 4988291
    Abstract: An orthdontic/facial orthopedic appliance for use in applying a pulling force to select teeth, the associated arch, and or jaw component(s) for moving/modifying and positioning the same. The appliance includes a frame supported primarily on the forward cranial portions of the patient's head and shaped to outline the area of the patient's face lateral to the forehead, eyes, nose and mouth, doe not apply force to the temporo-mandibular joint and is stationary against the face during lower jaw movement. The pulling force is in the form of elastic elements connected at one end to a member fixed to the frame and extending therefrom in a manner to be forward of the patient's mouth when the appliance is in a position of use, and at the other end thereof to selected teeth of the patient such that the pulling force pulls the selected teeth, associated arch, and/or upper jaw component(s) in a direction toward the frame.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: January 29, 1991
    Assignee: Great Lakes Orthodontics, Ltd.
    Inventor: Duane C. Grummons