Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186584 | Twist drill | Gebhard Muller | 1993-02-16 |
| 4848080 | Chiplessly formed open-end spinning rotor and process for production of such and open-end spinning rotor | Eberhard Hofmann | 1989-07-18 |
| 4777813 | Chiplessly formed open-end spinning rotor and process for production of such an open-end spinning rotor | Eberhard Hoffmann | 1988-10-18 |