5 Utility Patents
#7,788 in Beijing
#27,021 in China
#826,260 in the World
Forward Citations = 38
Company Filing History:
China Petroleum & Chemical Corporation

Other
4. 1 out of 53
China Petrochemical Corporation
5. 1 out of 2
Research Institute of Petroleum
where one patent can have more than one assignee
Get your Inventor Badge Today