DQ

De Quan

CC Crrc Tangshan Co.: 1 patents #3 of 64Top 5%
📍 Tangshan City, CN: #7 of 43 inventorsTop 20%
Overall (2022): #474,793 of 548,613Top 90%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11511712 Train compartment brake control method, train compartment, and train Shujun Chen, Jiaying Qin, Zhonghua Liu, Yingyu Zhang, Chuan MA +5 more 2022-11-29