Patents by Inventor Kenneth S. Keyes

Kenneth S. Keyes 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).

  • Drive-shaft driven bicycle
    Patent number: 5078416
    Abstract: An improved three-speed or coaster bicycle having a driver bevel gear connected to the pedals, a driven bevel gear at the hub of the rear wheel, one or more drive shafts having beveled gears at each end and capable of transmitting the rotation of the driver gear to the driven gear.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: January 7, 1992
    Inventor: Kenneth S. Keyes