Patents by Inventor Tung-Ta Tsai

Tung-Ta Tsai 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).

  • Skateboard with steering wheel
    Patent number: 5165711
    Abstract: A skateboard with steering wheel for steering control, the body of which having two opposite holes at the front biased inward from a transverse line through 4-5 angle for fastening two front wheels by two wheel holders, and two ring-shaped members for fastening two rear wheels by two wheel hubs and a wheel axle. A steel tube is fastened in a tubular seat on the body of the skateboard and rotated by a steering wheel two turn the front wheels by a link for steering control.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: November 24, 1992
    Inventor: Tung-Ta Tsai