25 Utility and 2 Design Patents
#1,497 in Beijing
#3,450 in China
#111,564 in the World
rank by utility patentsForward Citations = 183
Company Filing History:
4. 3 out of 550
China Petroleum & Chemical Corporation
5. 2 out of 828,785 patents
Other
where one patent can have more than one assignee
Get your Inventor Badge Today