Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5544730 | Tension release for passenger conveyor | Willy Adrian | 1996-08-13 |
| 4926981 | Escalator step buffer | Dietmar Thaler | 1990-05-22 |
| 4895240 | Cogbelt handrail drive for passenger conveyor | Dietmar Thaler | 1990-01-23 |