Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11300123 | Screw vacuum pump without internal cooling | Thomas Dreifert, Dirk Schiller, Roland Muller | 2022-04-12 |
| 11293435 | Vacuum pump screw rotors with symmetrical profiles on low pitch sections | Thomas Dreifert, Dirk Schiller, Roland Muller | 2022-04-05 |
| 9234519 | Vacuum pump | Thomas Dreifert, Robert Jenkins, Roland Muller | 2016-01-12 |
| 8740578 | Vacuum pump in particular roots type pump | Hannes Kamecke, Dirk Schiller | 2014-06-03 |
| 8602759 | Screw-type vacuum pump having overpressure openings | Peter Birch, Robert Jenkins, Roland Muller, Magnus Janicki | 2013-12-10 |
| 7153093 | Vacuum pump | Thomas Dreifert, Hans-Rochus Gross, Hartmut Kriehn | 2006-12-26 |
| 6123516 | Vacuum pump | Hans-Josef Burghard, Rudolf Bahnen | 2000-09-26 |