HL

Honglin Liu

OE Otis Elevator: 1 patents #88 of 253Top 35%
📍 Longbeilingcun, CA: #114 of 168 inventorsTop 70%
Overall (2021): #430,770 of 548,734Top 80%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11169170 Speed detection device of handrail of passenger conveyor and a speed detection method thereof 2021-11-09