26 Utility and 1 Design Patents
#1,779 in Beijing
#4,158 in China
#115,060 in the World
rank by utility patentsForward Citations = 81
Company Filing History:



4. 2 out of 2
Beijing Yiling Bioengineering Co., Ltd.
5. 1 out of 658
China Petroleum & Chemical Corporation
where one patent can have more than one assignee
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