Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4915620 | Burner, in particular atmospheric pre-mix gas burner, and cooling rods therefor | Bernd Bittmann, Donald Hellmann, Kurt Pelzer, Thomas Pieper, Jurgen Tenhumberg | 1990-04-10 |
| 4505051 | Cyclone heat exchanger including segmented immersion pipe | Horst Herchenbach, Fritz Seelen, Hubert Ramesohl, Peter Hundgen | 1985-03-19 |