Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7765797 | Exhaust gas purification system for a motor vehicle having a reducing agent storage tank, and associated operating method | Frank Duvinage, Berthold Keppeler, Arno Nolte, Markus Paule, Joachim Schommers | 2010-08-03 |
| 7550125 | Exhaust gas purification system | Frank Duvinage, Arno Nolte, Markus Paule, Henning Sander | 2009-06-23 |
| 7361320 | Exhaust gas purification unit with reducing agent supply | Frank Duvinage, Arno Nolte, Markus Paule, Henning Sander | 2008-04-22 |
| 7254939 | Exhaust gas purification unit with reducing agent supply | Frank Duvinage, Arno Nolte, Markus Paule, Henning Sander | 2007-08-14 |
| 6969492 | Exhaust-gas cleaning system with nitrogen oxide reduction and with the addition of reducing agent | Stefan Wessels | 2005-11-29 |
| 6892529 | Exhaust-gas purification system for an internal combustion engine | Frank Duvinage, Thomas Liebscher, Dieter Mainka, Siegfried Mueller-Lunz, Arno Nolte +1 more | 2005-05-17 |
| 6502390 | Method and system for feeding a reducing agent into a catalyst device | Michael Illek, Stefan Wessels | 2003-01-07 |
| 6367320 | Process for monitoring operation of an exhaust gas treatment system | Paul Kueper, Stefan Peter, Michael Illek, Jens Mueller, Stefan Wessels | 2002-04-09 |
| 5921076 | Process and apparatus for reducing nitrogen oxides in engine emissions | Bernd Krutzsch, Stefan Kurze, Gunter Wenninger, Walter Boegner, Friedrich Wirbeleit | 1999-07-13 |