19 Utility Patents
#2,431 in Beijing
#6,033 in China
#181,132 in the World
Forward Citations = 87
Company Filing History:
China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
China Petroleum & Chemical Corporation Beijing Research Institute of Chemical Industry
4. 1 out of 832,492 patents
Other
5. 1 out of 28
Air China Limited
where one patent can have more than one assignee
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