EN

Ezhil Nanjappan

OE Otis Elevator: 2 patents #33 of 284Top 15%
Overall (2022): #161,102 of 548,613Top 30%
2
Patents 2022

Issued Patents 2022

Patent #TitleCo-InventorsDate
11518650 Variable thresholds for an elevator system Tadeusz Pawel Witczak, Craig Drew Bogli, Derk Oscar Pahlke 2022-12-06
11330418 Lone worker safely check 2022-05-10