Patents by Inventor Zongnan Yu

Zongnan Yu 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).

  • Grass tire
    Patent number: D886031
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: June 2, 2020
    Assignee: HEBEI WANDA TYRE CO., LTD
    Inventors: Peng Geng, Pengpeng Li, Zongnan Yu, Shijun Jiang