Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723295 | High-temperature stabile catalysts for decomposing N2O | Michael Baier, Thomas Fetzer, Otto Hofstadt, Michael Hesse, Gert-Jan Burger +3 more | 2004-04-20 |
| 6534680 | Dicarboxylic acid crystallizates | Matthias Rauls, Dieter Baumann, Hermann Wistuba | 2003-03-18 |
| 6444181 | Reduction of encrustation of crystallization processes | Udo Setzer, Siegfried Bechtel, Richard van Gelder, Thomas Fetzer, Joachim Borgwart +2 more | 2002-09-03 |
| 6229043 | Preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates having a reduced iodine color number and a reduced chlorine content | Dietrich Scherzer, Bernd Bruchmann, Roland Minges, Peter Keller, Willy van Pee +4 more | 2001-05-08 |
| 6124234 | Catalyst with fine-particle dispersion of the active component | Thomas Fetzer, Wolfgang Buechele, Matthias Irgang, Hermann Wistuba, Gert Buerger | 2000-09-26 |
| 6056928 | Method of removing nitrogen oxides from a gas flow | Thomas Fetzer, Eckhart Wagner, Emil Roth, Wilhelm Ruppel, Hermann Wistuba +2 more | 2000-05-02 |
| 5587135 | Process for the catalytic decomposition of dinitrogen monoxide in a gas stream | Thomas Fetzer, Wolfgang Buechele, Hermann Wistuba, Gert Buerger, Paul Pijl | 1996-12-24 |
| 4628345 | Circuit for analog digital conversion of a color television signal employing variable signal amplification | Erich Geiger, Jurgen Kaaden | 1986-12-09 |