Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338244 | Exhaust gas purification process and apparatus with internal generation of ammonia for reducing nitrogen oxide | Josef Guenther, Bernd Krutzsch, Arno Nolte, Dirk Voigtlaender, Michel Weibel +2 more | 2002-01-15 |