9 Utility Patents
#4,756 in Beijing
#14,205 in China
#454,218 in the World
Forward Citations = 7
Company Filing History:
China University of Mining and Technology

Shaanxi Coal Caojiatan Mining Co., Ltd.
4. 1 out of 1
University of Mining and Technology—beijing Inner Mongolia Research Institute
where one patent can have more than one assignee
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