Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8388896 | Exhaust gas retreatment device | Rainer Lehnen, Kresimir Jambrosic | 2013-03-05 |
| 8220253 | Exhaust gas aftertreatment device for an internal combustion engine | Marcus Werni, Siegfried Woerner, Rainer Lehnen | 2012-07-17 |
| 7866143 | Exhaust gas treatment system | Rainer Lehnen, Arthur Wieland | 2011-01-11 |
| 7836688 | Exhaust system | Siegfried Woerner, Rainer Lehnen | 2010-11-23 |
| 7127884 | Muffler with an integrated catalytic converter | Siegfried Worner, Marcus Werni | 2006-10-31 |
| 6729127 | Exhaust cleaning system for motor vehicles, especially diesel-powered utility vehicles | Siegfried Woerner, Peter Zacke, Thomas Hauber, Marcus Werni | 2004-05-04 |