Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11300123 | Screw vacuum pump without internal cooling | Dirk Schiller, Wolfgang Giebmanns, Roland Muller | 2022-04-12 |
| 11293435 | Vacuum pump screw rotors with symmetrical profiles on low pitch sections | Dirk Schiller, Wolfgang Giebmanns, Roland Muller | 2022-04-05 |
| 10465686 | Vacuum pump system | Roland Muller, Max Pelikan, Dirk Schiller, Daniel Schneidenbach, Dirk Stratmann | 2019-11-05 |
| 9476423 | Roots pump connection channels separating adjacent pump stages | Peter Birch, Robert Jenkins, Clive Marcus Lloyd Tunna | 2016-10-25 |
| 9234519 | Vacuum pump | Wolfgang Giebmanns, Robert Jenkins, Roland Muller | 2016-01-12 |
| D630229 | Vacuum pump | — | 2011-01-04 |
| D617814 | Vacuum pump | — | 2010-06-15 |
| 7186098 | Eccentric pump and method for operation of said pump | — | 2007-03-06 |
| 7153093 | Vacuum pump | Wolfgang Giebmanns, Hans-Rochus Gross, Hartmut Kriehn | 2006-12-26 |
| 6964559 | Two shaft vacuum pump with cantilevered rotors | Manfred Behling, Lothar Brenner, Hartmut Kriehn, Klaus Rofall | 2005-11-15 |
| 6863511 | Two-shaft vacuum pump | Hartmut Kriehn, Lothar Brenner, Manfred Behling, Klaus Rofall, Heinrich Engländer +1 more | 2005-03-08 |
| 6776588 | Dry compressing vacuum pump having a gas ballast device | Lutz Arndt, Michael Holzemer, Jurgen Meyer, Frank-Udo Schönborn | 2004-08-17 |
| 6544020 | Cooled screw vacuum pump | Rudolf Bahnen | 2003-04-08 |
| 6382930 | Screw vacuum pump provided with rotors | Rudolf Bahnen | 2002-05-07 |