Patents by Inventor Eugene P. Shafer

Eugene P. Shafer 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).

  • Jaw muscle exercise device
    Patent number: 5855535
    Abstract: A compact jaw muscle exercise device that people use to strengthen and tone jaw muscles which includes a generally wedged shape body of plastic having upper and lower surfaces adapted to engage one's teeth. Holes run transversely through the body, which increases the deformability of the exercise device. The exercise device's resistance may be increased by inserting cylindrical members through the holes.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 5, 1999
    Inventor: Eugene P. Shafer