6 Utility Patents
#6,249 in Beijing
#20,191 in China
#670,791 in the World
Forward Citations = 33
Company Filing History:
China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
China Petrochemical & Chemical Corporation
4. 1 out of 1
China Petroleum & Chemical Corporation and Beijing Research Institute of Chemical Industry
where one patent can have more than one assignee
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