Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9630866 | Process for workup of NOx-containing offgases from wastewater streams of nitration plants | Ruediger Fritz, Renate Hempel, Holger Allardt, Reiner Reetz | 2017-04-25 |
| 8981155 | Process for preparing aromatic amines | Stefanie Haase, Dusko Kadijevic, Anne-Kathrin Merten, Andreas Raichle, Alexander Schocker +3 more | 2015-03-17 |
| 8853443 | Process for preparing an isocyanate | Daniel Breuninger, Johannes Adam, Heiner Schelling, Eckhard Stroefer, Markus Kraemer +3 more | 2014-10-07 |
| 8710267 | Process for preparing MDA via the stage of the aminal | Eckhard Stroefer, Kai Thiele, Johnny Moors, Jon S. Speier | 2014-04-29 |
| 8614352 | Method for producing color-stable MDA and MDI | Eckhard Stroefer, Heiner Schelling, Robert Reinhardt, Daniel Breuninger, Markus Kraemer +2 more | 2013-12-24 |
| 8609899 | Process for preparing toluenediamine by hydrogenation of dinitrotoluene | Andreas Raichle, Joana Coelho Tsou, Samuel Neto, Ulrich Penzel, Steffen Oehlenschlaeger +3 more | 2013-12-17 |
| 8529771 | Acidic sludge adsorption of DNT wastewaters | Ruediger Fritz, Renate Hempel, Anne-Kathrin Merten, Doris Zschieschang, Ina Homann +4 more | 2013-09-10 |