3 Utility Patents
#11,593 in Beijing
#45,048 in China
Forward Citations = 0
Company Filing History:

University of Science and Technology Beijing
Shanghai Xiaodu Technology Co. Ltd.
4. 1 out of 1
China Railway Tunnel Consultants Co., Ltd.
5. 1 out of 1
Hebei Zhucheng Industrial and Mining Machinery Co., Ltd.
where one patent can have more than one assignee
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