Patents by Inventor Ru-Jun Zeng

Ru-Jun Zeng 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).

  • Hair curler
    Patent number: D874723
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 4, 2020
    Assignee: Guangdong Roman Technology Co., Ltd.
    Inventors: Ru-Jun Zeng, Yun-Shan Feng