Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9640339 | On-load tap changer, method for installing a load transfer switch insert in the on-load tap changer, and kerosene drain screw | Klaus Hoepfl, Hubert Zwirglmaier | 2017-05-02 |
| 9640340 | Selector switch for tap-changing transformers and support arm for a tap selector thereof | Hurbert Zwirglmaier, Thomas Schuster, Ulli Laubereau, Gerhard Baeuml | 2017-05-02 |
| 9640341 | On-load tap changer | Klaus Hoepfl, Dieter Dohnal, Christian Kotz | 2017-05-02 |