Patents by Inventor Hongjuan Yan

Hongjuan Yan 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).

  • Knife holder
    Patent number: D971695
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: December 6, 2022
    Inventor: Hongjuan Yan
  • Knife holder
    Patent number: D971696
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: December 6, 2022
    Inventor: Hongjuan Yan
  • Knife holder
    Patent number: D971697
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: December 6, 2022
    Inventor: Hongjuan Yan