Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7870752 | Heat extraction machine and a method of operating a heat extraction machine | — | 2011-01-18 |
| 7711451 | Control device for refrigeration or air conditioning systems | Peter Aue, Hans-Jürgen Bersch, Bernd Kowanz | 2010-05-04 |