Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10357671 | Respirator device | Rüdiger Müller | 2019-07-23 |
| 7093596 | Connection component for a respirator product | Rüdiger Müller, Jürgen Falk | 2006-08-22 |
| 5704347 | Breathing valve | — | 1998-01-06 |
| 5669375 | Breathing mask | Klaus-Dieter Dahrendorf, Gunter Von Kopp, Wolfgang Drews, Joachim W. Siegel | 1997-09-23 |
| 5353789 | A flaccid mask with straps and a supporting element that force the mask into sealing engagement with the wearer's face in response to force exerted by the straps on the supporting element | — | 1994-10-11 |
| 5154168 | Respirator mask | — | 1992-10-13 |
| 5148803 | Respirator mask with easy-to-change respirator filter | — | 1992-09-22 |
| 4562837 | Air escape filter apparatus | — | 1986-01-07 |
| 4306584 | Diaphragm for a breath-controlled dosaging valve | — | 1981-12-22 |
| 4289238 | Readiness receptacle for respirators | Ernst Warncke, Jurgen Behnke | 1981-09-15 |