Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688606 | Process for acidic scrubbing of dinitrotoluene in the presence of hydrocyanic acid | Samuel Neto, Rüdiger Fritz, Renate Hempel, Holger Allardt, Yuan Shen Dai +5 more | 2017-06-27 |
| 9249083 | Process for scrubbing dinitrotoluene | Samuel Neto, Ruediger Fritz, Renate Hempel, Holger Allardt, Barbara BECKER +4 more | 2016-02-02 |
| 8933262 | Process for preparing polyisocyanates from biomass | Eckhard Stroefer, Otto Machhammer, Stefan Bitterlich, Roman Prochazka, Mario Emmeluth +6 more | 2015-01-13 |
| 8835673 | Process for preparing isocyanates | Torsten Mattke, Eckhard Stroefer, Radwan Abdallah, Axel Franzke, Michael Bock | 2014-09-16 |
| 8697921 | Process for purifying wastewaters from the workup of crude aromatic nitro compounds | Petra Deckert, Leo Denissen, Bart Van De Voorde, Stefan Robert Deibel, Matthias Fankhaenel +1 more | 2014-04-15 |
| 8686182 | Process for preparing isocyanates and/or polyisocyanates | Torsten Mattke, Gerrit Waters, Eckhard Stroefer | 2014-04-01 |
| 8680333 | Process for the preparation of aromatic formamides | Axel Franzke, Torsten Mattke, Radwan Abdallah, Michael Bock, Robert Baumann +1 more | 2014-03-25 |
| 8609887 | Process for preparing polyisocyanates comprising biuret groups | Torsten Mattke, Gerrit Waters, Horst Binder, Harald Schaefer, Matthias Kroner +1 more | 2013-12-17 |
| 8592637 | Process for preparing mononitrated organic compounds | Leo Denissen, Eckhard Stroefer, Jan-Dirk Arndt, Torsten Mattke, Kerstin Heinen | 2013-11-26 |