Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5944049 | Apparatus and method for regulating a pressure in a chamber | Christian Beyer, Keith Trenton, Mariusch Gregor, Robert Stolle, Rudolph Bahnen +4 more | 1999-08-31 |
| 5044895 | Oil supply device for a rotary machine | Peter Frieden, Karl-Heinz Ronthaler | 1991-09-03 |
| 4917583 | Bearing support for a twin-shaft pump | Karl-Heinz Ronthaler, Ralf Steffens | 1990-04-17 |
| 4639199 | Two-shaft vacuum pump with internal compression | Hans-Peter Kabelitz, Karl-Heinz Ronthaler | 1987-01-27 |
| 4470767 | Vacuum pump with overload protection valve | Karl-Heinz Ronthaler | 1984-09-11 |