Patents by Inventor Lijie Ao

Lijie Ao 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).

  • MP3 player
    Patent number: D622695
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: August 31, 2010
    Assignee: Hongfutai E-Tech (Shenzhen) Co., Ltd.
    Inventor: Lijie Ao
  • Earphones and charging case set
    Patent number: D968371
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 1, 2022
    Assignee: SHENZHEN RF TECHNOLOGY CO., LTD
    Inventor: Lijie Ao