Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387345 | Process for working up reaction gases during the oxidation HCI to chlorine | Fritz Gestermann, Jürgen Schneider, Hans-Ulrich Dummersdorf, Franz-Rudolf Minz, Helmut Waldmann | 2002-05-14 |
| 5820827 | Method and device for delivering hot, aggressive media | Hans-Ulrich Dummersdorf, Helmut Waldmann, Franz-Rudolf Minz, Fritz Gestermann | 1998-10-13 |
| 5660810 | Method and device for delivering hot, aggressive media | Hans-Ulrich Dummersdorf, Helmut Waldmann, Franz-Rudolf Minz, Fritz Gestermann | 1997-08-26 |
| 5569024 | Pump for delivering hot, corrosive media | Hans-Ulrich Dummersdorf, Helmut Waldman, Franz-Rudolf Minz, Fritz Gestermann | 1996-10-29 |