12 Utility Patents
#3,750 in Beijing
#10,425 in China
#327,270 in the World
Forward Citations = 87
Company Filing History:

China Petroleum & Chemical Corporation
China Petrochemical Corporation
4. 1 out of 832,540 patents
Other
5. 1 out of 2
Research Institute of Petroleum
where one patent can have more than one assignee
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