Patents by Inventor Rujun Cai

Rujun 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).

  • 100 sided die
    Patent number: D908803
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: January 26, 2021
    Assignee: NINGBO BESCON GAMES AND APPLIANCES CO., LTD
    Inventor: Rujun Cai