Patents by Inventor Yangchun Duan

Yangchun Duan 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).

  • Wiper
    Patent number: D981317
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: March 21, 2023
    Inventor: Yangchun Duan
  • Wiper adapter
    Patent number: D981318
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: March 21, 2023
    Inventor: Yangchun Duan