QC

Quanwei Che

CC Crrc Qingdao Sifang Co.: 1 patents #13 of 60Top 25%
📍 Shandong, CN: #90 of 381 inventorsTop 25%
Overall (2021): #297,042 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11021176 Energy absorption device and rail vehicle having same Aiqin TIAN, Yonggui Zhang, Shizhong Zhao, Guidong TAO, Shuxiang CHEN +2 more 2021-06-01