43 Utility and 3 Design Patents
#295 in Shanghai
#2,082 in China
#50,387 in the World
rank by utility patentsForward Citations = 258
Company Filing History:

China Petroleum & Chemical Corporation
Shanghai Research Institute of Petrochemical Technology, Sinopec
4. 5 out of 26,457

5. 3 out of 219
Tongji University
where one patent can have more than one assignee
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