Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074189 | Filling member-less internal-gear machine | — | 2000-06-13 |
| 5951274 | Internal-gear machine | Stefan Bellemann | 1999-09-14 |
| 5890885 | Filling member-less internal-gear pump having a sealed running ring | — | 1999-04-06 |
| 5690481 | Internal-gear machine having a divided filling portion | — | 1997-11-25 |
| 4893997 | Internal-gear machine | — | 1990-01-16 |
| 4472123 | Internal gear machine with segmented filler members | Klaus-Dieter Buchmuller | 1984-09-18 |