3 Utility Patents
#11,641 in Beijing
#45,281 in China
Forward Citations = 5
Company Filing History:
China Petroleum Chemical Corporation
Sinopec Research Institute of Petroleum Engineering
China Petroleum & Chemical Corporation Exploration & Production Research Institute
4. 1 out of 1
Exploration & Production Research Insitute, Sinopec
5. 1 out of 1
China Petro-chemical Corporation Shengli Petroleum Administrative Bureau
where one patent can have more than one assignee
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