Patents by Inventor Chunlai Dai

Chunlai Dai 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).

  • Wireless earphone
    Patent number: D947812
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: April 5, 2022
    Inventor: Chunlai Dai
  • Bluetooth earphone
    Patent number: D960989
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: August 16, 2022
    Inventor: Chunlai Dai