Patents by Inventor Guizhu Chen

Guizhu 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).

  • Sprinkler toy
    Patent number: D960309
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: August 9, 2022
    Inventor: Guizhu Chen
  • Sprinkler toy
    Patent number: D960310
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: August 9, 2022
    Inventor: Guizhu Chen