Patents by Inventor Enfu Yang

Enfu Yang 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).

  • Combination lock carabiner
    Patent number: D902009
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: November 17, 2020
    Inventor: Enfu Yang