21 Utility and 2 Design Patents
#2,198 in Beijing
#5,377 in China
#157,673 in the World
rank by utility patentsForward Citations = 62
Company Filing History:
China Petroleum & Chemical Corporation

Simai Co., Ltd.
4. 3 out of 832,540 patents
Other
5. 2 out of 118
Chinese Academy of Agricultural Sciences
where one patent can have more than one assignee
Get your Inventor Badge Today