Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9630866 | Process for workup of NOx-containing offgases from wastewater streams of nitration plants | Renate Hempel, Michael Zoellinger, Holger Allardt, Reiner Reetz | 2017-04-25 |
| 9308515 | Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics | Gerrit Waters, Johannes Buettner, Andreas Raichle, Markus Hiller, Peter Renze +7 more | 2016-04-12 |
| 9249083 | Process for scrubbing dinitrotoluene | Samuel Neto, Renate Hempel, Holger Allardt, Barbara BECKER, Julia Leschinski +4 more | 2016-02-02 |
| 8835688 | Optimized introduction of the starting materials for a process for preparing aromatic amines by hydrogenation of nitroaromatics | Gerrit Waters, Johannes Buettner, Andreas Raichle, Markus Hiller, Peter Renze +7 more | 2014-09-16 |
| 8529771 | Acidic sludge adsorption of DNT wastewaters | Renate Hempel, Michael Zoellinger, Anne-Kathrin Merten, Doris Zschieschang, Ina Homann +4 more | 2013-09-10 |
| 7928270 | Process for distillatively removing dinitrotoluene from process wastewater from the preparation of dinitrotoluene by nitrating of toluene with nitrating acid | Ulrich Penzel, Holger Allardt, Johannes Adam, Anne-Kathrin Merten | 2011-04-19 |