Patents by Inventor Huan Dai

Huan 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).

  • Microphone
    Patent number: D883961
    Type: Grant
    Filed: December 30, 2018
    Date of Patent: May 12, 2020
    Inventor: Huan Dai
  • Portable stereo
    Patent number: D1004568
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: November 14, 2023
    Inventor: Huan Dai
  • Microphone
    Patent number: D1004576
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: November 14, 2023
    Inventor: Huan Dai
  • Portable stereo
    Patent number: D1014454
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: February 13, 2024
    Inventor: Huan Dai