Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475952 | PROCESS FOR PRODUCING A CATALYTICALLY ACTIVE MATERIAL, CATALYTIC CONVERTER HAVING A CATALYTICALLY ACTIVE MATERIAL PRODUCED IN THIS MANNER, AND USE OF THE CATALYTIC CONVERTER TO BREAK DOWN DIOXINS AND/OR FURANS | Stefan Fischer, Frank Witzel | 2002-11-05 |
| 6442932 | Method and device for the catalytic reduction of nitrogen oxides contained in the off-gas from a combustion system | Lothar Hofmann, Manfred Weigl, Gerhard Wissler | 2002-09-03 |
| 6408619 | Method and device for reducing the nitrogen oxides in the exhaust gas of a combustion system | Gerhard Wissler, Manfred Weigl, Lothar Hofmann | 2002-06-25 |