Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415786 | Container for a respirator | Rainer Grendel, Rüdiger Müller, Werner Jumpertz | 2002-07-09 |
| 5042471 | Respirator with several regeneration cartridges and breather bags | Wolfgang Drews, Hasso Weinmann | 1991-08-27 |
| 5038772 | Closed-cycle breathing equipment | Norbert Kollenbrandt, Hasso Weinmann, Wolfgang Drews, Karsten Vogeler, Hans Fiedler | 1991-08-13 |
| 4981655 | Chemical oxygen generator | Rainer Ernst, Hans Fiedler | 1991-01-01 |