Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12412713 | Contact assembly | Per Algot Sundqvist | 2025-09-09 |
| 12020885 | On-load tap changer | — | 2024-06-25 |
| 11508535 | Spring unit and a diverter switch | — | 2022-11-22 |
| 9127751 | Gearbox for a tap changer, a tap changer and a transformer | — | 2015-09-08 |
| 8963670 | Tap changer | Tommy Larsson, Richard Mannerbro | 2015-02-24 |