HC

Hui Chen

OE Otis Elevator: 1 patents #73 of 258Top 30%
Overall (2023): #420,210 of 537,848Top 80%
1
Patents 2023

Issued Patents 2023

Patent #TitleCo-InventorsDate
11708237 Communication for elevator service request Kai Li, Haofeng Hou, Fu Qi, Siqi Ma 2023-07-25