13 Utility and 1 Design Patents
#3,494 in Beijing
#9,500 in China
#297,024 in the World
rank by utility patentsForward Citations = 14
Company Filing History:



4. 1 out of 812

5. 1 out of 20
Nanjing Hydraulic Research Institute
where one patent can have more than one assignee
Get your Inventor Badge Today