Patents by Inventor Changyong Cai

Changyong Cai 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).

  • Electric heating hair straightener
    Patent number: D906677
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 5, 2021
    Assignee: SHENZHEN VALUELINK E-COMMERCE CO., LTD.
    Inventor: Changyong Cai