BH

Bai Hebin

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #2,660,851 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11358833 Guide device and elevator system Qing Li, Kai Kang, ShengYu Wang 2022-06-14