Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222479 | Oxygen self-rescuer apparatus | Lothar Brauer, Klaus-Dieter Dahrendorf, Volker Hunnebeck, Klaus Haertle, Werner Mascher +4 more | 1993-06-29 |
| 4461291 | Respirator | Werner Mascher | 1984-07-24 |
| 4233971 | Respirator | Manfred Gronau, Werner Mascher | 1980-11-18 |
| 4197841 | Respirator with protective cover | Lothar Brauer | 1980-04-15 |