Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591851 | Seal-gas valve device | Thomas Palten, Dirk Kalisch | 2003-07-15 |
| 6168374 | Friction vacuum pump | Heinz-Dieter Odendahl, Christian Beyer | 2001-01-02 |
| 5944049 | Apparatus and method for regulating a pressure in a chamber | Christian Beyer, Keith Trenton, Mariusch Gregor, Rudolph Bahnen, Anja Plugge +4 more | 1999-08-31 |