Patents by Inventor Wucai Tu

Wucai Tu 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).

  • Vacuum cleaner
    Patent number: D851342
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: June 11, 2019
    Inventor: Wucai Tu
  • Vacuum cleaner
    Patent number: D855908
    Type: Grant
    Filed: January 2, 2017
    Date of Patent: August 6, 2019
    Inventor: Wucai Tu