Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4953361 | Process for the operation of a generator absorption heat pump heating installation for space heating, water heating, etc. and generator absorption heat pump heating installation | Karl-Friedrich Knoche, Heinz-Bernd Grabenhenrich | 1990-09-04 |
| 4368623 | Method and apparatus for use of heat taken up at low temperature | Karl-Friedrich Knoche, Heinrich Trumper | 1983-01-18 |