Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8751170 | Method for determining the fatigue of a pump rotor of a gas turbopump | Roland Blumenthal, Michael Froitzheim, Dieter Bohry, Manfred Kiefer | 2014-06-10 |
| 6702544 | Friction vacuum pump for use in a system for regulating pressure and pressure regulating system comprising a friction vacuum pump of this type | Dirk Kalisch | 2004-03-09 |
| 6591851 | Seal-gas valve device | Robert Stolle, Dirk Kalisch | 2003-07-15 |