Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12391557 | Method for producing phosgene | Torsten Mattke, Gerhard Olbert, Jochen Gauer, Koenraad VANDEWALLE, Jens FERBITZ +1 more | 2025-08-19 |
| 11028042 | Process for preparing an aromatic polyamine mixture | Viktor Ladnak, Silvia TAURO, Kerstin Heinen, Klaus Metzner, Torsten Mattke | 2021-06-08 |
| 10927066 | Process for hydrogenating a mixture in the presence of a colorless amine | Andreas Weickgenannt, Silvia TAURO, Alexander Duefert, Viktor Ladnak | 2021-02-23 |
| 10435354 | Process for preparing isocyanates in dialkyl carbonates as solvent | Manfred Heilig, Thomas Schulz, Torsten Mattke, Filip Nevejans, Stefan Maixner | 2019-10-08 |
| 10252912 | Separation of a phosgene- and hydrogen chloride-comprising stream | Heiner Schelling, Torsten Mattke, Hans-Juergen Pallasch | 2019-04-09 |
| 10093615 | Process for preparing isocyanates in dialkyl carbonates as solvent | Manfred Heilig, Thomas Schulz, Torsten Mattke, Filip Nevejans, Stefan Maixner | 2018-10-09 |
| 9505711 | Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate | Michael Bock, Johannes Jacobs, Anne-Kathrin Merten | 2016-11-29 |
| 9170184 | Method of regulating the viscosity of a mixture comprising at least two components having different viscosities | Bart Janssen, Wouter Ducheyne | 2015-10-27 |
| 8993803 | Method for producing phosgene | Gerhard Olbert, Byoung-Yeon Kim, Heiner Schelling | 2015-03-31 |
| 8907124 | Process for preparing methylenedi(phenyl isocyanate) | Michael Bock, Heiner Schelling | 2014-12-09 |
| 8853443 | Process for preparing an isocyanate | Daniel Breuninger, Johannes Adam, Heiner Schelling, Eckhard Stroefer, Markus Kraemer +3 more | 2014-10-07 |
| 8829232 | Process for preparing aromatic isocyanates | Ulrich Penzel, Torsten Mattke, Andreas Wölfert, Johannes Jacobs, Tsung-Chieh Cheng +6 more | 2014-09-09 |
| 8759569 | Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation | Heiner Schelling, Ulrich Penzel, Eckhard Stroefer, Matthias Eiermann, Jon S. Speier +1 more | 2014-06-24 |
| 8710267 | Process for preparing MDA via the stage of the aminal | Eckhard Stroefer, Michael Zoellinger, Johnny Moors, Jon S. Speier | 2014-04-29 |
| 8614352 | Method for producing color-stable MDA and MDI | Eckhard Stroefer, Heiner Schelling, Robert Reinhardt, Michael Zoellinger, Daniel Breuninger +2 more | 2013-12-24 |
| 8519179 | Method of measuring entry of water into phosgene-conducting plants | Heiner Schelling, Ulrich Penzel, Eckhard Stroefer, Dirk Hablawetz, Dave Beckwith +6 more | 2013-08-27 |
| 7705106 | Initial compounds for producing polyurethanes | Peter Groer, Regina Hendreich, Paul Ch. Kierkus, Thomas Ostrowski, Eckhard Stroefer +2 more | 2010-04-27 |
| 7408083 | Method for the production of diaminodiarylmethanes | Ulrich Steinbrenner, Eckhard Stroefer, Martin Sohn, Veronika Quaschning, Helmut Moehwald +3 more | 2008-08-05 |