Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6637189 | Method for the periodically desulfating a nitrogen oxide or sulfur oxide accumulator of an exhaust gas cleaning system | Walter Boegner, Bernd Krutzsch, Stefan Renfftlen, Christof Schoen, Dirk Voigtlaender +1 more | 2003-10-28 |