31 Utility and 1 Design Patents
#1,461 in Beijing
#3,289 in China
#87,406 in the World
rank by utility patentsForward Citations = 1,325
Company Filing History:


China Petroleum & Chemical Corporation
4. 4 out of 1,178

5. 3 out of 1,815

where one patent can have more than one assignee
Get your Inventor Badge Today