8 Utility Patents
#5,309 in Beijing
#16,539 in China
#520,178 in the World
Forward Citations = 54
Company Filing History:
China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry
4. 2 out of 6
Sinopec Beijing Research Institute of Chemical Industry
5. 1 out of 832,627 patents
Other
where one patent can have more than one assignee
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