RZ

Ruili Zhang

OE Otis Elevator: 1 patents #64 of 199Top 35%
Overall (2024): #288,411 of 561,600Top 55%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11884515 Clamping device and elevator system Qirui Wang, Zhenyan Tong 2024-01-30