Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6696389 | Process and apparatus for cleaning a gas flow | Walter Boegner, Rolf-Dirc Roitzheim, Martin Hartweg, Thomas Fetzer, Bernd Morsbach | 2004-02-24 |
| 6444178 | Purification device for gases | Martin Hartweg, Rolf-Dirc Roitzheim, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 2002-09-03 |
| 6200535 | Purification device having a porous body for purifying pollutants from an exhaust gas stream | Martin Hartweg, Rolf-Dirc Roitzheim, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 2001-03-13 |
| 6153162 | Method for the reduction of nitrogen oxides | Thomas Fetzer, Bernd Morsbach, Otto Kumberger, Martin Hartweg, Rolf-Dirc Roitzheim +1 more | 2000-11-28 |
| 6153161 | Process for reducing NO.sub.x from exhaust fumes | Thomas Fetzer, Bernd Morsbach, Martin Hartweg, Ralf-Dirc Roitzheim, Leonhard Walz | 2000-11-28 |
| 6030589 | Catalyst, method for its production and use of same | Martin Hartweg, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 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, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 2000-02-22 |
| 6004520 | Method for operating a purification device, a purification device and use of the same | Martin Hartweg, Rolf-Dirc Roitzheim, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 1999-12-21 |
| 5965098 | Methods and devices for scrubbing gases | Walter Boegner, Rolf-Dirc Roitzheim, Martin Hartweg, Thomas Fetzer, Bernd Morsbach | 1999-10-12 |
| 5965099 | Catalyst and a method for its production and use of same | Martin Hartweg, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 1999-10-12 |
| 5945080 | Catalyst and process for its production | Martin Hartweg, Martina Heinau, Leonhard Walz, Thomas Fetzer, Bernd Morsbach +1 more | 1999-08-31 |
| 5905056 | Catalyst and a method for its production and use of same | Martin Hartweg, Leonhard Walz, Thomas Fetzer, Bernd Morsbach | 1999-05-18 |
| 5851501 | Process for absorbing and desorbing nitrogen oxides in exhaust gases | Bernd Krutzsch, Leonhard Walz, Walter Boegner, Martina Heinau, Martin Hartweg +1 more | 1998-12-22 |
| 5750460 | Catalyst and process for its production | Martin Hartweg, Martina Heinau, Leonhard Walz, Thomas Fetzer, Bernd Morsbach +1 more | 1998-05-12 |
| 5580534 | Zeolite-spinel catalyst for the reduction of nitrogen oxides and the process thereof | Martin Hartweg, Martina Heinau, Leonhard Walz | 1996-12-03 |