Patents by Inventor Wang Mung-Tung

Wang Mung-Tung 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).

  • Multi-function electric wheel-chair
    Patent number: 5458349
    Abstract: A multi-fumction electric wheel-chair is disclosed which comprises: a main frame foundation having two rollers, a front portion, a back portion; a chair-like sitting block placed above the main frame foundation, the sitting block comprising a backing plate, a sitting plate and two arm-rest plates; a drive-gear is placed under a rear part of the sitting block; two pedal-rods placed in front of the sitting block which are symmetrically hinged to a front part of the sitting plate.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: October 17, 1995
    Inventor: Wang Mung-Tung