Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4979591 | Conveyor belt | Hans-Rudolf Gubler | 1990-12-25 |
| 4767389 | Driving belt | Niklaus Polt, Kurt Grobli | 1988-08-30 |
| 4752282 | Flat drive belt | — | 1988-06-21 |
| 4184589 | Dimensionally stable synthetic conveyor belt | — | 1980-01-22 |