Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267558 | Chemical cartridge for respirators | Klaus Haertle, Volker Hunnebeck, Karl-Heinz Kohricht, Michael Schwichtenberg | 1993-12-07 |
| 5222479 | Oxygen self-rescuer apparatus | Lothar Brauer, Klaus-Dieter Dahrendorf, Volker Hunnebeck, Klaus Haertle, Werner Mascher +4 more | 1993-06-29 |
| 4459981 | Breathing bag for closed cycle respirator | Werner Mascher, Bernd Woicke, Klaus Haertle | 1984-07-17 |
| 4231360 | Nose clip for respirators | Bernd Woike | 1980-11-04 |