Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754805 | Method for transforming the temperature of heat and heat transformer | — | 1988-07-05 |
| 4594856 | Method and device for pumping heat | — | 1986-06-17 |
| 4410028 | Process and installation for storing heat and for upgrading its temperature | Georg Alefeld, Peter Maier-Laxhuber | 1983-10-18 |