Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11817237 | Surge protection device and modular surge protection system | Georg Wittmann | 2023-11-14 |
| 11476071 | Disconnecting device for a surge arrester | — | 2022-10-18 |
| 11410802 | Arrangement for non-reversible detection and display of electrical overcurrents or current limit values by means of a pre-finished conductor | Sascha Ludewig, Georg Wittmann | 2022-08-09 |
| 11152769 | Overvoltage protection arrangement consisting of a horn spark gap accommodated in an insulating housing | Helmut Hirschmann, Georg Wittmann, Ralph Brocke, Sebastian Haas | 2021-10-19 |
| 11088473 | Overvoltage protection device with at least one overvoltage protection unit, consisting of a socket part and a plug part which can be connected to the socket part | Stefan Dietweger, Sascha Ludewig | 2021-08-10 |
| 10049795 | Surge protection device, comprising at least one surge arrester and one thermally trippable switching device connected in series with the surge arrester | Helmut Hirschmann, Georg Wittmann | 2018-08-14 |
| 10014098 | Surge protection device, comprising at least one surge arrester and one short-circuit switching device which is connected in parallel with the surge arrester, can be thermally tripped and is spring-pretensioned | Helmut Hirschmann, Georg Wittmann | 2018-07-03 |
| 9660437 | Arrangement for forming a thermal isolation point | Georg Wittmann | 2017-05-23 |
| 9331471 | Arrangement for forming a thermal isolation point | Georg Wittmann | 2016-05-03 |
| 9172236 | Overvoltage protection device having at least one surge arrester | Helmut Hirschmann, Georg Wittmann | 2015-10-27 |
| 8493170 | Overvoltage protection device having one or more parallel-connected overvoltage-limiting elements located in one physical unit | Richard Daum, Helmut Hirschmann | 2013-07-23 |
| 7806716 | Plug-in combination of appliances for protecting against overvoltages | Peter Zahlmann, Ralph Brocke, Martin Strobl, Michael Waffler, Sascha Ludewig +5 more | 2010-10-05 |