DD

Dongxia Duan

📍 Qingdao, CN: #90 of 322 inventorsTop 30%
Overall (2020): #488,524 of 565,922Top 90%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10781112 Dehydrogenation tank and ballast water treatment system having the same Guangzhou Liu, Ping Yao, Hongren Wang 2020-09-22