Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9217377 | Valve device for controlling an exhaust gas flow of an internal combustion engine | Hans Gerards | 2015-12-22 |
| 6616817 | Electrodeposition device | Heiko Schumann, Stephen Ahlborn | 2003-09-09 |
| 6599144 | Sealed testable electrical contact arrangement | Heiko Schumann, Stephan Ahlborn | 2003-07-29 |
| 6348103 | Method for cleaning electrofilters and electrofilters with a cleaning device | Stefan Ahlborn, Heiko Schumann | 2002-02-19 |