Patents by Inventor Zaifa Zhang

Zaifa Zhang 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).

  • Snow boot
    Patent number: D882216
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: April 28, 2020
    Inventor: Zaifa Zhang
  • Snow boot
    Patent number: D882911
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: May 5, 2020
    Inventor: Zaifa Zhang