Patents by Inventor Guicheng Zhao

Guicheng Zhao 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).

  • Touch pen
    Patent number: D970504
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: November 22, 2022
    Inventor: Guicheng Zhao