Patents by Inventor Yongbo Mai

Yongbo Mai 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).

  • Ring
    Patent number: D789825
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: June 20, 2017
    Inventor: Yongbo Mai
  • Ring
    Patent number: D790384
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 27, 2017
    Inventor: Yongbo Mai
  • Ring
    Patent number: D790387
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 27, 2017
    Inventor: Yongbo Mai
  • Ring
    Patent number: D798185
    Type: Grant
    Filed: November 21, 2015
    Date of Patent: September 26, 2017
    Inventor: Yongbo Mai