Patents by Inventor Ding Hu Chen

Ding Hu 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).

  • Hat
    Patent number: D892457
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 11, 2020
    Inventor: Ding Hu Chen
  • Hat
    Patent number: D901845
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: November 17, 2020
    Inventor: Ding Hu Chen