Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12057283 | Overvoltage protection arrangement with a horn spark gap, located in a housing, with a chamber for arc quenching | Arnd Ehrhardt, Ralph Brocke | 2024-08-06 |
| 11764025 | Triggered fuse for low-voltage applications | Arnd Ehrhardt, Sven Wolfram | 2023-09-19 |
| 11454653 | Device for detecting electrical currents on or in the vicinity of electrical conductors | Josef Birkl, Thomas Böhm, Klaus Bühler, Johannes Maget, Arnd Ehrhardt +1 more | 2022-09-27 |
| 11454654 | Method for evaluating the state and the quality of low-voltage networks | Jens Ehrler, Ralph Brocke | 2022-09-27 |
| 11201027 | Triggered fuse for low-voltage applications | Arnd Ehrhardt, Sven Wolfram | 2021-12-14 |
| 11171482 | Overvoltage protection device with monitoring and communication functions | Ralph Brocke | 2021-11-09 |
| 11162984 | Device for detecting electrical currents on or near electrical conductors | Josef Birkl, Thomas Böhm, Klaus Bühler, Johannes Maget, Arnd Ehrhardt +1 more | 2021-11-02 |
| 9780463 | Surge protection device with at least one surge protection unit | Thomas Seitz | 2017-10-03 |
| 9691560 | Single- or multi-pole switching device, in particular for DC applications | Stefanie Schreiter, Arnd Ehrhardt, Michael Rock | 2017-06-27 |
| 7806716 | Plug-in combination of appliances for protecting against overvoltages | Ralph Brocke, Edmund Zäuner, Martin Strobl, Michael Waffler, Sascha Ludewig +5 more | 2010-10-05 |
| 7271992 | Compact arrangement for multipole, surge-proof surge arresters and encapsulated surge arrester for the same | Georg Wittmann, Edmund Zaeuner, Arnd Erhardt, Bernhard Krauss, Michael Waffler +1 more | 2007-09-18 |
| 6788518 | Spark gap arrangement | Peter Hasse, Raimund Koenig, Georg Wittmann | 2004-09-07 |
| 6788519 | Pressure-resistant encapsulated air-gap arrangement for the draining off of damaging perturbances due to overvoltages | Raimund Koenig, Bernhard Krauss, Michael Waffler, Stefan Hierl | 2004-09-07 |
| 5963413 | Spark gap | Raimund Konig, Georg Wittmann, Martin Stuiber, Willibald Duschek | 1999-10-05 |
| 5450274 | Spark gap arrangement | Johannes Wiesinger, Wolfgang Zischank, Peter Hasse, Walter Aumeier, Raimund Konig +1 more | 1995-09-12 |