34 Utility Patents
#1,317 in Beijing
#2,923 in China
#75,436 in the World
Forward Citations = 66
Company Filing History:

China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
4. 4 out of 18,137

5. 2 out of 3,081

where one patent can have more than one assignee
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