Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9871368 | Encapsulated surge protection device capable of carrying lightning currents and limiting follow currents and comprising at least one spark gap | Klaus Bühler, Jens Ehrler, Arnd Erhardt | 2018-01-16 |
| 9691560 | Single- or multi-pole switching device, in particular for DC applications | Peter Zahlmann, Arnd Ehrhardt, Michael Rock | 2017-06-27 |
| 9184569 | Spark gap having a plurality of individual spark gaps connected in series and present in a stacked arrangement | Arnd Ehrhardt | 2015-11-10 |
| 9130354 | Rapid disconnect device | Arnd Ehrhardt | 2015-09-08 |
| 9083153 | Horn spark gap lightning arrestor with a deion chamber | Arnd Ehrhardt | 2015-07-14 |
| 9019680 | Horn spark gap with a deion chamber | Stephan Hierl, Uwe Strangfeld, Arnd Ehrhardt | 2015-04-28 |
| 8890393 | Spark gap having a plurality of series-connected individual spark gaps, which are located in a stack arrangement | Bernhard Krauss, Michael Waffler, Arnd Ehrhardt, Steffen Beier | 2014-11-18 |
| 8873217 | Arrangement for igniting spark gaps | Stephan Hierl, Michael Waffler, Uwe Strangfeld, Arnd Ehrhardt | 2014-10-28 |
| 8861157 | Surge arrestor comprising at least one arrester element | Arnd Ehrhardt, Christian Burger | 2014-10-14 |