Patents by Inventor Chenguo Wu

Chenguo Wu 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).

  • Cleaning sponge
    Patent number: D971538
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 29, 2022
    Inventor: Chenguo Wu
  • Cleaning sponge
    Patent number: D971539
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 29, 2022
    Inventor: Chenguo Wu