Patents by Inventor Longfu Cai

Longfu Cai 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).

  • Hook
    Patent number: D990293
    Type: Grant
    Filed: April 4, 2023
    Date of Patent: June 27, 2023
    Inventor: Longfu Cai
  • Hook
    Patent number: D1058353
    Type: Grant
    Filed: May 29, 2023
    Date of Patent: January 21, 2025
    Inventor: Longfu Cai