Patents by Inventor Youfa Chen

Youfa 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).

  • Cat ball tray toy
    Patent number: D975786
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: January 17, 2023
    Inventor: Youfa Chen
  • Multifunctional clothes hanger
    Patent number: D1055537
    Type: Grant
    Filed: August 2, 2023
    Date of Patent: December 31, 2024
    Inventor: Youfa Chen
  • Cat toy ball
    Patent number: D1075188
    Type: Grant
    Filed: December 6, 2024
    Date of Patent: May 13, 2025
    Inventor: Youfa Chen