Patents by Inventor Chentao Ma

Chentao Ma 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).

  • Headphone
    Patent number: D1008213
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: December 19, 2023
    Inventor: Chentao Ma
  • Headphone
    Patent number: D1021854
    Type: Grant
    Filed: December 29, 2023
    Date of Patent: April 9, 2024
    Inventor: Chentao Ma