Patents by Inventor Yazhi Chen

Yazhi 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).

  • Lawn aerator
    Patent number: D995242
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: August 15, 2023
    Inventor: Yazhi Chen
  • Spike part for lawn aerator
    Patent number: D1013467
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: February 6, 2024
    Inventor: Yazhi Chen
  • Chair
    Patent number: D1043151
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: September 24, 2024
    Inventor: Yazhi Chen