Patents by Inventor Hengjun Liu

Hengjun 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).

  • Remote control page turner
    Patent number: D1031844
    Type: Grant
    Filed: January 4, 2024
    Date of Patent: June 18, 2024
    Assignee: Shenzhen Boyangyu Technology Co., Ltd.
    Inventor: Hengjun Liu
  • Remote control page turner
    Patent number: D1034535
    Type: Grant
    Filed: April 16, 2024
    Date of Patent: July 9, 2024
    Assignee: Shenzhen Huazhichuangxing Technology Co., Ltd.
    Inventor: Hengjun Liu