Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952937 | Two-stroke engine | Michael Grether, Robert Koehli, Richard Wirt | 2024-04-09 |
| 11441518 | Carburetor and two-stroke engine with a carburetor | Michael Grether | 2022-09-13 |
| 9731431 | Motor chain saw with supply pump | — | 2017-08-15 |
| 9065345 | Transformerless inverter comprising a DC/DC converter | Klaus Rigbers, Regine Mallwitz, Peter Zacharias | 2015-06-23 |
| 8899194 | Two-stroke engine | — | 2014-12-02 |
| 8851262 | Coupling device actuated by centrifugal force | Lukas Zürcher | 2014-10-07 |
| 8837098 | Method for limiting the generator voltage of a photovoltaic installation in case of danger and photovoltaic installation | Matthias Victor, Gerd Bettenwort, Frank Greizer, Adrian Haering, Joachim Laschinski | 2014-09-16 |
| RE44901 | Method for converting direct voltage into three phase alternating voltage | Holger Becker, Guenther Cramer, Sven Bremicker, Thorsten Dingel, Wilfried Groote +4 more | 2014-05-20 |
| 8373308 | Device and method for generating alternating current | Guenther Cramer, Frank Greizer, Joachim Laschinski | 2013-02-12 |
| 8138638 | DC/DC converter | Regine Mallwitz, Peter Zacharias | 2012-03-20 |
| 8053930 | Solar power plant | Guenther Cramer, Frank Greizer, Joachim Laschinski | 2011-11-08 |
| 8023288 | Inverter for grounded direct current source, more specifically for a photovoltaic generator | Regine Mallwitz, Peter Zacharias | 2011-09-20 |
| 7768799 | Apparatus for accomodating a plurality of individual inverters | Gunther Cramer | 2010-08-03 |
| D610540 | Inverter | Andreas Donth | 2010-02-23 |
| D604237 | Inverter | Andreas Donth | 2009-11-17 |
| D604239 | Inverter | Andreas Donth | 2009-11-17 |
| D604238 | Inverter | Andreas Donth | 2009-11-17 |
| 7576449 | Method for converting direct voltage into three-phase alternating voltage | Holger Becker, Gunther Cramer, Sven Bremicker, Thorsten Dingel, Wilfried Groote +4 more | 2009-08-18 |
| D592153 | Display for inverter for photovoltaic installation | Peter Drews | 2009-05-12 |
| D592154 | Display for inverter for photovoltaic installation | Peter Drews | 2009-05-12 |
| D592155 | Display for inverter for photovoltaic installation | Peter Drews | 2009-05-12 |
| D592156 | Display for inverter for photovoltaic installation | Peter Drews | 2009-05-12 |
| D591692 | Display for inverter for photovoltaic installation | Peter Drews | 2009-05-05 |
| D591246 | Display for inverter for photovoltaic installation | Peter Drews | 2009-04-28 |
| D590778 | Display for inverter for photovoltaic installation | Peter Drews | 2009-04-21 |