Patents by Inventor Chengdong Xu

Chengdong Xu 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).

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    Patent number: D933471
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: October 19, 2021
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventors: Biyun Luo, Chengdong Xu, Huilu Hong