Patents by Inventor Yefang Xie

Yefang Xie 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).

  • Swing chair
    Patent number: D931629
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 28, 2021
    Inventors: Yefang Xie, Yong Li
  • Swing chair
    Patent number: D935205
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: November 9, 2021
    Inventors: Yefang Xie, Yong Li