Patents by Inventor Mark E. W. Dinner

Mark E. W. Dinner 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).

  • Toothbrushes
    Patent number: 4654921
    Abstract: A toothbrush comprised of a handle including an oval ring that defines an oval aperture sized for the passage therethrough of a young child's or infant's four fingers for fist gripping a half portion of the oval ring; and a brush head including an array of bristles that extends in general alignment with the major axis of the oval ring.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: April 7, 1987
    Inventor: Mark E. W. Dinner