ZT

Zhenyan Tong

OE Otis Elevator: 3 patents #506 of 1,840Top 30%
Overall (All Time): #1,352,309 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12049384 Elevator safety clamp control device, elevator safety apparatus and elevator system YuHang Ou 2024-07-30
11884515 Clamping device and elevator system Qirui Wang, Ruili Zhang 2024-01-30
11702317 Force application assembly, elevator and method of elevator rescue Yunkang Shi, Wei-Chung Wang, Min Wang 2023-07-18