5 Utility Patents
#7,831 in Beijing
#27,169 in China
#827,581 in the World
Forward Citations = 2
Company Filing History:
China Petroleum & Chemical Corporation
Sinopec Beijing Research Institute of Chemical Industry
Beijing Research Institute of Chemical Industry
4. 1 out of 3
China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry
where one patent can have more than one assignee
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