Patents by Inventor David Ruan

David Ruan 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).

  • Aerosol dispenser
    Patent number: D976613
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: January 31, 2023
    Assignee: WORKLIFE BRANDS LLC
    Inventors: Lowell Jesmer, Logan Steinfeld, David Ruan
  • Aerosol dispenser
    Patent number: D997594
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: September 5, 2023
    Assignee: WORKLIFE BRANDS LLC
    Inventors: Lowell Jesmer, Logan Steinfeld, David Ruan