DC

Dayu Chen

OE Otis Elevator: 1 patents #73 of 258Top 30%
Overall (2023): #476,297 of 537,848Top 90%
1
Patents 2023

Issued Patents 2023

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11685632 Elevator buffering device and elevator system Shaohong Jiang 2023-06-27