Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D645961 | Connector tube | Bernd Christoph Lang | 2011-09-27 |
| 7992559 | Breathing mask arrangement as well as an application device and a forehead support device for same | Bernd Christoph Lang, Dieter Heidmann, Stefan Madaus, Harald Vogele | 2011-08-09 |