2 Utility Patents
#14,865 in Beijing
#63,318 in China
Forward Citations = 0
Company Filing History:

China University of Petroleum
Kms Oil Field Chemicals & Technical Services Ltd.
4. 1 out of 1
Zhong Shi Da Engineering Research Center Co. Ltd.
5. 1 out of 57
Beijing Volcano Engine Technology Co., Ltd.
where one patent can have more than one assignee
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