Patents by Inventor Keqiang Cai

Keqiang 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).

  • Patent number: D920018
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: May 25, 2021
    Inventor: Keqiang Cai
  • Patent number: D922802
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: June 22, 2021
    Inventor: Keqiang Cai
  • Patent number: D961927
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: August 30, 2022
    Inventor: Keqiang Cai