WY

WeiHua Yuan

OE Otis Elevator: 1 patents #88 of 253Top 35%
Overall (2021): #214,204 of 548,734Top 40%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11203511 Traction system for elevator and elevator system Changke Yang, LiuDi Gong 2021-12-21