Patents by Inventor Liangqi Dai

Liangqi Dai 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).

  • Projection lamp
    Patent number: D948776
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: April 12, 2022
    Assignee: SHENZHEN HUAIAN PHOTOELECTRIC CO., LTD.
    Inventor: Liangqi Dai
  • Feeder
    Patent number: D979153
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: February 21, 2023
    Inventor: Liangqi Dai
  • Feeding bucket
    Patent number: D987201
    Type: Grant
    Filed: October 27, 2022
    Date of Patent: May 23, 2023
    Inventor: Liangqi Dai