Patents by Inventor Jim Harp

Jim Harp 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).

  • Vibration dampening device for a strung sports racquet
    Patent number: 7530910
    Abstract: A device adapted to be emplaced in a self-securing manner between adjacent strings of a tennis racquet for dampening vibrations caused by impact with a tennis ball produces beneficial sensory effects such as a whistling sound and flashing light.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 12, 2009
    Inventors: Gene Niksich, Jim Harp