Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267558 | Chemical cartridge for respirators | Volker Hunnebeck, Karl-Heinz Kohricht, Michael Schwichtenberg, Stefan Zloczysti | 1993-12-07 |
| 5222479 | Oxygen self-rescuer apparatus | Lothar Brauer, Klaus-Dieter Dahrendorf, Volker Hunnebeck, Werner Mascher, Udo Mushold +4 more | 1993-06-29 |
| 4459981 | Breathing bag for closed cycle respirator | Werner Mascher, Stefan Zloczysti, Bernd Woicke | 1984-07-17 |
| 4195627 | Breathing apparatus with flow control | — | 1980-04-01 |