Patents by Inventor Guy Guillem

Guy Guillem 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).

  • Sports racquet
    Patent number: 4206917
    Abstract: The strings of a tennis racquet are tensioned by passing over a liquid-containing flexible tube in the frame of the racquet with means provided in the handle of the racquet for providing pressure to the liquid in the tube to increase or decrease the tension of the strings.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: June 10, 1980
    Inventors: Guy Guillem, Rene A. Vinci, Gilbert C. Roche