Patents by Inventor Min-Hsiung Cheng

Min-Hsiung Cheng 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).

  • Electric 4-wheel wheelchair
    Patent number: D444421
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: July 3, 2001
    Inventor: Min-Hsiung Cheng
  • Electric 3-wheel wheelchair
    Patent number: D444422
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: July 3, 2001
    Inventor: Min-Hsiung Cheng