Patents by Inventor Baoying Zhao

Baoying Zhao 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).

  • Portable door lock
    Patent number: D924038
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: July 6, 2021
    Inventor: Baoying Zhao
  • Portable door lock
    Patent number: D952441
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: May 24, 2022
    Inventor: Baoying Zhao