Patents by Inventor Runfeng Cai

Runfeng 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).

  • Stylus
    Patent number: D955389
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: June 21, 2022
    Inventor: Runfeng Cai