4 Utility Patents
#4 in Urumqi
#28,948 in China
Forward Citations = 1
Company Filing History:
China University of Petroleum (east China)
China University of Geosciences (beijing)
Northwest Oilfield Branch, China Petroleum & Chemical Co., Ltd
4. 1 out of 1
Shengli Oilfield Branch, China Petroleum & Chemical Co., Ltd
5. 1 out of 3
Oil and Gas Technology Research Institute, Petrochina Changqing Oilfield Company
where one patent can have more than one assignee
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