Patents by Inventor Cluff E. Chappell

Cluff E. Chappell 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).

  • Apparel worn for the aid and protection of the body and for the support and assistance of impaired joint function
    Patent number: 4144881
    Abstract: An orthopedic prosthetic device, formed of interlocking links, which allows for full motion in the plan of articulation, yet which resists, lateral forces applied to the joint, and tendencies of the joint to dislocate in a lateral direction. The interlocking links having adjustable stops so that motion in the plane of articulation may be restricted if desired.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 20, 1979
    Inventor: Cluff E. Chappell