Patents by Inventor Yongchang Niu

Yongchang Niu 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 scooter
    Patent number: D814978
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 10, 2018
    Assignee: Zhejiang Woqu Niuniu Technologies Co., Ltd.
    Inventor: Yongchang Niu