EN

Ezhil Nanjappan

OE Otis Elevator: 3 patents #45 of 260Top 20%
Overall (2019): #91,096 of 560,194Top 20%
3
Patents 2019

Issued Patents 2019

Patent #TitleCo-InventorsDate
10462638 Lone worker fall detection 2019-10-29
10414629 Mechanical system service tool 2019-09-17
10217345 Safety headwear status detection system Tony Black 2019-02-26