Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4448244 | Heat-transmitting device for heat pumps | Hans-Ulrich Demuth, Peter A. Kropp | 1984-05-15 |
| 4406137 | Heat-transmitting device for heat pumps | Hans-Ulrich Demuth, Peter A. Kropp | 1983-09-27 |