HZ

Han ZHANG

CG China Three Gorges: 1 patents #2 of 26Top 8%
Overall (2023): #428,385 of 537,848Top 80%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11661760 Longitudinal seam caulking and monitoring restore device and longitudinal seam caulking restore method Chao Gao, Zhiwei Wang, Jie Yu, Chao Shang, Bo Shao 2023-05-30