Patents by Inventor Chaofan Zheng

Chaofan Zheng 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 isolation shield
    Patent number: D905022
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: December 15, 2020
    Assignee: CROWN TECH LLC
    Inventor: Chaofan Zheng
  • Microphone isolation shield
    Patent number: D910604
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: February 16, 2021
    Assignee: CROWN TECH LLC
    Inventor: Chaofan Zheng