JR

Jan Ruhnke

OE Otis Elevator: 2 patents #650 of 1,840Top 40%
Overall (All Time): #1,708,278 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12280984 Elevator system — 2025-04-22
11267677 Elevator electrical safety actuator control Helge Krambeck 2022-03-08