Patents by Inventor Jinfu Zheng

Jinfu Zheng 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).

  • Foam lance
    Patent number: D1000025
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: September 26, 2023
    Inventor: Jinfu Zheng
  • Pressure washer gun
    Patent number: D1003393
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: October 31, 2023
    Inventor: Jinfu Zheng
  • Pressure washer gun
    Patent number: D1003394
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: October 31, 2023
    Inventor: Jinfu Zheng