QH

Qingjun Han

CC Crrc Qingdao Sifang Co.: 1 patents #13 of 60Top 25%
📍 Qingdao, CN: #112 of 400 inventorsTop 30%
Overall (2021): #297,926 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11125006 Method, system and device for controlling door of railway vehicle Bo-Ruei Chen, Jinghai Jiao, Qing Tian, Huiqing Zhang, Fangdong Hou +2 more 2021-09-21