Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7041929 | Contact arrangement for a vacuum switch tube | Johannes-Gerhard Banghard, Michael Hahn, Werner Hartmann, Roman Renz | 2006-05-09 |
| 6930270 | Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type | Klaus Gessner, Jürgen Jirasek, Lutz Kellmann, Klaus Oberndorfer, Thomas Pfohl +2 more | 2005-08-16 |
| 6864456 | Vacuum interrupter chamber with ring-shaped insulator | Johannes-Gerh Banghard, Michael Hahn, Werner Hartmann, Harald Kurzmann, Joerg Kusserow +4 more | 2005-03-08 |
| 6674039 | Contact arrangement for a vacuum interrupter | Johannes-Gerh Banghard, Michael Hahn, Werner Hartmann, Roman Renz | 2004-01-06 |
| 6657149 | Vacuum interrupter with a vapor shield | Klaus Gessner, Klaus Oberndoerfer, Roman Renz | 2003-12-02 |
| 6417472 | Vacuum switching chamber having an annular insulator | Jorg Kusserow, Roman Renz | 2002-07-09 |
| 5661281 | Vacuum-type interrupter having an annular insulator | Jorg Kusserow, Roman Renz, Klaus Oberndorfer | 1997-08-26 |