Patents by Inventor Hill Du

Hill Du 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).

  • Humidifier
    Patent number: D925025
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: July 13, 2021
    Assignee: SUPER EQUITIES HOLDINGS LLC
    Inventor: Hill Du
  • Humidifier
    Patent number: D936807
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: November 23, 2021
    Assignee: SUPER EQUITIES HOLDINGS LLC
    Inventor: Hill Du
  • Humidifier
    Patent number: D973857
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: December 27, 2022
    Assignee: SUPER EQUITIES HOLDINGS LLC
    Inventor: Hill Du