60 Utility and 2 Design Patents
#156 in Shanghai
#1,207 in China
#26,872 in the World
rank by utility patentsForward Citations = 166
Company Filing History:


China Petroleum & Chemical Corporation
4. 4 out of 102
Shanghai Research Institute of Petrochemical Technology, Sinopec
5. 4 out of 111
Chinese Academy of Medical Sciences
where one patent can have more than one assignee
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