Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8397587 | Paddle-type flowmeter with magnetic coupling | Kai Haemel, Ulrich Rehnelt, Karsten Viereck | 2013-03-19 |
| 7833312 | Method of drying an air dehumidifier | Karsten Viereck, Kai Haemel, Alexander Lodig | 2010-11-16 |
| 7468091 | Method for dehumidifying air and air dehumidifier for oil-insulated transformers, reactance coils and step switches | Karsten Viereck, Dieter Dohnal, Ansgar Hinz | 2008-12-23 |
| 7191648 | Level gauge for oil-filled transformer, choke, or tap changer | Kai Hämel, Karsten Viereck | 2007-03-20 |