54 Utility and 1 Design Patents
#247 in Shenzhen
#1,432 in China
#32,866 in the World
rank by utility patentsForward Citations = 47
Company Filing History:



4. 2 out of 646
China Petroleum & Chemical Corporation
5. 2 out of 102
Shanghai Research Institute of Petrochemical Technology, Sinopec
where one patent can have more than one assignee
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