Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10833615 | Methods for controlling a voltage present at an electric fan | Dirk Hertz, Florian Ringer | 2020-11-10 |
| 9851404 | Switchgear for a single-phase motor and a three-phase motor | Dirk Hertz, Helene Steuer, Stefan Zitzler | 2017-12-26 |
| 9502881 | Switchgear for controlling the energy supply of an electric motor connected thereto | Dirk Hertz, Johann Seitz, Stefan Zitzler | 2016-11-22 |
| 8698439 | Electrical device and method for determining a phase failure in the electrical device | Dirk Hertz, Johann Seitz, Stefan Zitzler | 2014-04-15 |