Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8633413 | Switchgear assembly with a contact gap | Radu-Marian Cernat, Stefan Giere, Volker Lehmann, Manfred Meinherz | 2014-01-21 |
| 8598483 | High-voltage power switch having a contact gap equipped with switching gas deflection elements | Volker Lehmann, Manfred Meinherz | 2013-12-03 |
| 6744000 | High-voltage circuit breaker having an insulating nozzle | Ralf Bergmann, Volker Lehmann, Heiner Marin | 2004-06-01 |
| 6646850 | High-voltage power breaker having an outlet flow channel | Ralf Bergmann, Joerg Hagen, Hartmut Knobloch, Volker Lehmann, Friedrich Loebner +2 more | 2003-11-11 |
| 6365863 | High voltage circuit-breaker with a counter-contact which can be actuated | Heiner Marin, Volker Lehmann, Thomas Chyla | 2002-04-02 |
| 6271494 | High voltage circuit breaker with two arcing contacts which can be actuated in an opposite direction | Volker Lehmann, Heiner Marin | 2001-08-07 |
| 6177643 | High-voltage circuit-breaker having an axially displaceable field electrode | Heiner Marin, Volker Lehmann | 2001-01-23 |