Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10113548 | Combination of motor and vacuum pump with an exhaust flow | Michael Rapp, Denko Popovac | 2018-10-30 |
| 9675921 | Air filter attachment for side channel compressor | Ulli Kriebel, Lars Buchholz, Henryk Waniek, Achim Von Kathen | 2017-06-13 |
| 9624927 | Vacuum pump | Uwe Drewes, Klaus Rofall, Markus Loebel | 2017-04-18 |
| D721102 | Filter element | Andre Kunzendorf, Achim Von Kathen, Ulli Kriebel, Henryk Waniek | 2015-01-13 |
| D719191 | Filter housing | Andre Kunzendorf, Achim Von Kathen, Ulli Kriebel, Henryk Waniek | 2014-12-09 |
| D694276 | Combined compressor and filter housing | Andre Kunzendorf, Achim Von Kathen, Ulli Kriebel, Henryk Waniek | 2013-11-26 |
| D685821 | Compressor | Andre Kunzendorf, Achim Von Kathen, Ulli Kriebel, Henryk Waniek | 2013-07-09 |
| 7559752 | Dual-shaft vacuum pump | Josef Hodapp, Karl-Heinz Ronthaler | 2009-07-14 |
| 6736614 | Rotary piston drive mechanism | Josef Hodapp, Gunter Knoll | 2004-05-18 |
| 6544020 | Cooled screw vacuum pump | Thomas Dreifert | 2003-04-08 |
| 6382930 | Screw vacuum pump provided with rotors | Thomas Dreifert | 2002-05-07 |
| 6123516 | Vacuum pump | Hans-Josef Burghard, Wolfgang Giebmanns | 2000-09-26 |
| 5975857 | Process for operating a dry-compression vacuum pump as well as a suitable vacuum pump for implementation of this process | Monika Kuhn, Hartmut Kriehn | 1999-11-02 |
| 5718565 | Apparatus and process for operating a dry-compression vacuum pump | Monika Kuhn, Hartmut Kriehn | 1998-02-17 |
| 5356275 | Device for supplying a multi-stage dry-running vacuum pump with inert gas | Lothar Brenner | 1994-10-18 |