7 Utility Patents
#5,906 in Beijing
#18,960 in China
#595,963 in the World
Forward Citations = 2
Company Filing History:



4. 1 out of 15
Traffic Control Technology Co., Ltd
5. 1 out of 5
Shandong Lanbeisite Educational Equipment Group
where one patent can have more than one assignee
Get your Inventor Badge Today