Patents by Inventor Hexian Chen

Hexian Chen 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).

  • Contour gauge
    Patent number: D904210
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 8, 2020
    Inventor: Hexian Chen