Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382418 | Process for removing pollutants from combustion exhaust gases | Gerhard Schmidt, Erhard Herrmann | 1995-01-17 |
| 5370850 | Process for catalytically reducing nitrogen oxides in combustion exhaust gases | Gerhard Schmidt | 1994-12-06 |
| 5219543 | Process and apparatus for removing dust, sulfur compounds and nitrogen oxides from combustion exhaust gases | Werner Weisweiler, Erhard Herrmann, Wolfgang Fennemann, Harald Sauer | 1993-06-15 |
| 5092929 | Process of treating residues obtained by purification of exhaust gas | Harald Sauer | 1992-03-03 |
| 4200454 | Process for the volatilization of zinc and/or lead from metallurgical material | Carl-August Maelzer, Martin Rahn, Lothar Reh, Karel Vydra, David Rice | 1980-04-29 |