Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601688 | Passenger conveyor gap monitoring device | — | 2003-08-05 |
| 6049189 | Variable speed passenger conveyor and method of operation | Richard Markus, Dietmar Thaler | 2000-04-11 |
| 6015038 | Handrail monitoring system | Martin Mehlert | 2000-01-18 |
| 5842554 | Passenger sensor for a conveyor | Dietmar Kruger | 1998-12-01 |
| 5785165 | Data collection and analysis system for passenger conveyors | Michael Stahlhut | 1998-07-28 |
| 5704464 | Passenger sensor for an escalator or moving walk | Hermann W. Ahls, Detlev Abraham, Dietmar Kruger | 1998-01-06 |
| 5697485 | Passenger conveyor control system having decentralized inputs and outputs | Detlev Abraham, Hans Erich Engel, Reinhardt Henkel, Dietmar Kruger | 1997-12-16 |