Patents by Inventor Liujia Liu

Liujia Liu 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).

  • Headset
    Patent number: D933043
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: October 12, 2021
    Inventor: Liujia Liu
  • Headset
    Patent number: D940098
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: January 4, 2022
    Inventor: Liujia Liu