Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7385075 | Method for producing esters of multibasic acids | Walter Disteldorf, Günther Golfier, Kurt Schwirten | 2008-06-10 |
| 7300966 | Method for producing blends of phthalic acid diesters, decanols and tridecanols | Boris Breitscheidel, Richard Selberdinger, Klaus Rossato, Uwe Storzum, Jurgen Holzmann +4 more | 2007-11-27 |
| 6696389 | Process and apparatus for cleaning a gas flow | Walter Boegner, Rolf-Dirc Roitzheim, Martin Hartweg, Andrea Seibold, Thomas Fetzer | 2004-02-24 |
| 6624285 | Polyesters blocked with isomeric nonanols, method for producing them and use thereof as softeners | Jurgen Holzmann, Boris Breitscheidel, Walter Disteldorf, Christiane Haller | 2003-09-23 |
| 6444178 | Purification device for gases | Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 2002-09-03 |
| 6437170 | Mixture of diesters of adipic or phthalic acid with isomers of nonanols | Lucien Thil, Boris Breitscheidel, Walter Disteldorf, Edgar Zeller, Marc Walter +1 more | 2002-08-20 |
| 6395244 | Storage catalyst | Martin Hartweg, Thomas Fetzer, Otto Kumberger | 2002-05-28 |
| 6200535 | Purification device having a porous body for purifying pollutants from an exhaust gas stream | Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 2001-03-13 |
| 6153161 | Process for reducing NO.sub.x from exhaust fumes | Thomas Fetzer, Martin Hartweg, Ralf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz | 2000-11-28 |
| 6153162 | Method for the reduction of nitrogen oxides | Thomas Fetzer, Otto Kumberger, Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold +1 more | 2000-11-28 |
| 6030589 | Catalyst, method for its production and use of same | Martin Hartweg, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 2000-02-29 |
| 6027703 | Method for operating a purification device for gases as well as a purification device for gases | Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 2000-02-22 |
| 6004524 | Lowering of the nitrogen oxide levels in exhaust gases by controlled addition of NH.sub.3 | Helmut Daudel, Uwe Gaertner | 1999-12-21 |
| 6004520 | Method for operating a purification device, a purification device and use of the same | Martin Hartweg, Rolf-Dirc Roitzheim, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 1999-12-21 |
| 5965098 | Methods and devices for scrubbing gases | Walter Boegner, Rolf-Dirc Roitzheim, Martin Hartweg, Andrea Seibold, Thomas Fetzer | 1999-10-12 |
| 5965099 | Catalyst and a method for its production and use of same | Martin Hartweg, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 1999-10-12 |
| 5945080 | Catalyst and process for its production | Martin Hartweg, Martina Heinau, Andrea Seibold, Leonhard Walz, Thomas Fetzer +1 more | 1999-08-31 |
| 5905056 | Catalyst and a method for its production and use of same | Martin Hartweg, Andrea Seibold, Leonhard Walz, Thomas Fetzer | 1999-05-18 |
| 5750460 | Catalyst and process for its production | Martin Hartweg, Martina Heinau, Andrea Seibold, Leonhard Walz, Thomas Fetzer +1 more | 1998-05-12 |
| 5227356 | Catalyst containing metal oxides for use in the degenerative oxidation of organic compounds present in exhaust gases from combustion plants | Klaus Hess, Ronald Drews, Wolfgang Buechele, Helmut Schachner | 1993-07-13 |