Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6981799 | Slide bearing for a centrifugal pump | Hans-Dieter Sturm, Frank Sehr | 2006-01-03 |
| 6165288 | Highly corrosion and wear resistant chilled casting | Heinz Koeper, Wolfgang Prechtl, Joerg Schroepfer, Hermann Tischner | 2000-12-26 |
| 5795540 | Corrosion and wear-resistant chill casting | Wolfgang Prechtl, Jorg Schropfer, Hermann Tischner | 1998-08-18 |