Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159431 | Method of operating a section straightening machine | Hans-Georg Hartung, Markus Willems, Hans-Jurgen Reismann, Manfred Riffelmann, Ulrich Svejkovsky +1 more | 2007-01-09 |
| 6843091 | Section straightening machine | Hans-Georg Hartung, Markus Willems, Hans-Jurgen Reismann, Manfred Riffelmann, Ulrich Svejkovsky +1 more | 2005-01-18 |
| 5927634 | Coiling steel rod | Gunter Grenz, Meinert Meyer | 1999-07-27 |
| 4930715 | Rotary basket winder with water cooling | Gunter Grenz | 1990-06-05 |