Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9808657 | Directional valve and breathing mask with a directional valve | Michael Rosert, Dennis Leske, Thomas Pancur | 2017-11-07 |
| 9492691 | Directional valve and respirator product with a directional valve | Michael Rosert, Dennis Leske, Thomas Pancur | 2016-11-15 |
| 7712348 | Device and method for the selective determination of the quantity of oil mist | Christian Luebbert, Andreas Mohrmann | 2010-05-11 |
| 5804146 | Chemical oxygen generator | Udo Burchardt, Rainer Ernst | 1998-09-08 |
| 5653226 | Device for generating oxygen | Herbert Rohl | 1997-08-05 |