Patents by Inventor Caifeng Feng

Caifeng Feng 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).

  • Electronic cigarette
    Patent number: D885653
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: May 26, 2020
    Inventors: Yi Ding, Caifeng Feng