Patents by Inventor Changxi Hu

Changxi Hu 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).

  • Massage knee pad
    Patent number: D932042
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: September 28, 2021
    Inventor: Changxi Hu
  • Massage device
    Patent number: D976418
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: January 24, 2023
    Inventor: Changxi Hu