YX

Yanfen Xu

📍 Qingdao, CN: #78 of 263 inventorsTop 30%
Overall (2019): #215,082 of 560,194Top 40%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10246110 Heavy freight train marshalling device and marshalling method, and electronically controlled pneumatic brake system Shengcai Duan, Jing Zhao 2019-04-02