2 Utility and 8 Design Patents
#13 in Qingdao
#2,192 in China
#31,082 in the World
rank by design patentsForward Citations = 95
Company Filing History:



4. 2 out of 442

5. 2 out of 2
Qingdao West Coast Rail Transit Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today