TL

Thomas Lis

OE Otis Elevator: 2 patents #650 of 1,840Top 40%
Overall (All Time): #2,270,208 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5628391 Floorplate frame for a people moving device Heinz Volkening 1997-05-13
5372231 Combplate for a people moving device Heinz Volkening, Peter von Riegen, Kay U. Wiechmann 1994-12-13