Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7232295 | Tempering method for a screw-type vacuum pump | Klaus Rofall, Manfred Behling | 2007-06-19 |
| 7153093 | Vacuum pump | Thomas Dreifert, Wolfgang Giebmanns, Hans-Rochus Gross | 2006-12-26 |
| 7056108 | Cooled screw-type vacuum pump | Manfred Behling, Klaus Rofall, Ralf Steffens | 2006-06-06 |
| 6964559 | Two shaft vacuum pump with cantilevered rotors | Manfred Behling, Lothar Brenner, Thomas Dreifert, Klaus Rofall | 2005-11-15 |
| 6863511 | Two-shaft vacuum pump | Lothar Brenner, Manfred Behling, Thomas Dreifert, Klaus Rofall, Heinrich Engländer +1 more | 2005-03-08 |
| 6758660 | Screw vacuum pump with a coolant circuit | Lothar Brenner | 2004-07-06 |
| 5975857 | Process for operating a dry-compression vacuum pump as well as a suitable vacuum pump for implementation of this process | Monika Kuhn, Rudolf Bahnen | 1999-11-02 |
| 5718565 | Apparatus and process for operating a dry-compression vacuum pump | Monika Kuhn, Rudolf Bahnen | 1998-02-17 |
| 5660535 | Method of operating a claw-type vacuum pump and a claw-type vacuum pump suitable for carrying out the method | Andreas Kobus, Uwe Gottschlich, Lothar Brenner | 1997-08-26 |
| 5399817 | Muffler | Hanns-Peter Berges, Lothar Brenner, Sascha Bauer | 1995-03-21 |
| 5364245 | Dry-running twin-shaft vacuum pump | Lothar Brenner | 1994-11-15 |
| 5131825 | Multi-stage vacuum pump with reaction chamber between stages | Paul Bachmann, Lothar Brenner, Monika Kuhn | 1992-07-21 |
| 4940398 | Twin-shaft, multiple-stage vacuum pump with the shafts vertically disposed | Hanns-Peter Berges, Wolfgang Leier, Ralf Steffens | 1990-07-10 |