Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316350 | Coupling device for a tube system | Heiko Schwenke, Elmar Wimmers | 1994-05-31 |
| 5038772 | Closed-cycle breathing equipment | Ernst-Gunther Kolbe, Hasso Weinmann, Wolfgang Drews, Karsten Vogeler, Hans Fiedler | 1991-08-13 |