Patents by Inventor Cuimei Ou

Cuimei Ou 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).

  • Cleaning brush
    Patent number: D871773
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 7, 2020
    Inventor: Cuimei Ou