9 Utility and 1 Design Patents
#4,844 in Beijing
#14,568 in China
#458,312 in the World
rank by utility patentsForward Citations = 40
Company Filing History:

National Institute of Metrology, China

4. 2 out of 54,638

5. 1 out of 159

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