AP

Axel Pfeffer

OE Otis Elevator: 2 patents #650 of 1,840Top 40%
Overall (All Time): #2,009,306 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9376289 Elevator control system with sleep monitor Peter Herkel, Juergen Gewinner, Dirk H. Tegtmeier, Gianfranco Giannini, Michael Mann 2016-06-28
7328607 Brake lining monitoring device and method 2008-02-12