Patents by Inventor Denglin Yang

Denglin Yang 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).

  • Combined toothbrush and water pick unit
    Patent number: D866750
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 12, 2019
    Assignee: GUANGDONG ROMAN TECHNOLOGY CO., LTD.
    Inventors: Youchun Yan, Gang Li, Denglin Yang