Patents by Inventor Kang Qiu

Kang Qiu 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).

  • Earmuff
    Patent number: D885683
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: May 26, 2020
    Inventor: Kang Qiu
  • Protective liner
    Patent number: D945709
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: March 8, 2022
    Inventor: Kang Qiu
  • Protective liner
    Patent number: D1002115
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: October 17, 2023
    Inventor: Kang Qiu