Patents by Inventor Shengmei Duan

Shengmei 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).

  • Earphone
    Patent number: D1015308
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 20, 2024
    Assignee: GN Audio A/S
    Inventors: Xinwen Chen, Shengmei Duan, Iain Scott Pottie, Kati Bjoerninen, Johan Birger
  • Earphone
    Patent number: D1016043
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: February 27, 2024
    Assignee: GN Audio A/S
    Inventors: Xinwen Chen, Shengmei Duan, Iain Scott Pottie, Kati Bjoerninen, Johan Birger