32 Utility Patents
#450 in Shanghai
#3,002 in China
#81,178 in the World
Forward Citations = 33
Company Filing History:
China Petroleum & Chemical Corporation
Shanghai Research Institute of Petrochemical Technology, Sinopec

4. 5 out of 830,757 patents
Other
5. 3 out of 828

where one patent can have more than one assignee
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