Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10501406 | Low by-product content polyphenylene polymethylene polyisocyanates | Michael Lorenz, Axel Franzke, Robert Baumann, Geert Janssens | 2019-12-10 |
| 9505711 | Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate | Johannes Jacobs, Kai Thiele, Anne-Kathrin Merten | 2016-11-29 |
| 9493491 | Method of separating acids from chemical reaction mixtures by means of apolar amines | Oliver Huttenloch, Patrick Deck, Holger Ganz, Michael Mauss, Wolfgang Körnig | 2016-11-15 |
| 9359269 | Method of separating acids from chemical reaction mixtures by means of apolar amines | Oliver Huttenloch, Patrick Deck, Holger Ganz, Michael Mauβ, Wolfgang Körnig | 2016-06-07 |
| 9000213 | Process for coproducing di- and/or polyisocyanates and glycols | Robert Baumann, Axel Franzke, Eckhard Stroefer, Gerhard Theis | 2015-04-07 |
| 8907124 | Process for preparing methylenedi(phenyl isocyanate) | Kai Thiele, Heiner Schelling | 2014-12-09 |
| 8871965 | Method for producing urethanes | Axel Franzke, Robert Baumann | 2014-10-28 |
| 8835673 | Process for preparing isocyanates | Torsten Mattke, Eckhard Stroefer, Julia Leschinski, Radwan Abdallah, Axel Franzke | 2014-09-16 |
| 8822718 | Process for preparing isocyanates by thermally cleaving carbamates | Eckhard Stroefer, Robert Baumann, Axel Franzke, Joachim Pfeffinger | 2014-09-02 |
| 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 |
| 8729291 | Method for producing urethanes composed of di-functional aromatic amines and dialkyl carbonates | Axel Franzke, Robert Baumann, Roderich Roettger, Andreas Leitner, Matthias Kloetzer | 2014-05-20 |
| 8680333 | Process for the preparation of aromatic formamides | Axel Franzke, Torsten Mattke, Julia Leschinski, Radwan Abdallah, Robert Baumann +1 more | 2014-03-25 |
| 8680323 | Process for preparing isocyanates by thermal dissociation of carbamates | Axel Franzke, Robert Baumann, Eckhard Stroefer | 2014-03-25 |
| 8440856 | Method for treating residues from the production of isocyanates | Martin Sesing, Eckhard Stroefer | 2013-05-14 |
| 8273915 | Process for preparing isocyanates | Bernd Rumpf, Martin Fiene, Eckhard Stroefer | 2012-09-25 |
| 8088950 | Process for the preparation of triamides from ammonia and amido-dichlorides | Oliver Huttenloch, Patrick Deck, Oliver Bey, Heiner Schelling, Markus Siegert | 2012-01-03 |
| 7709679 | Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates | Hans-Juergen Pallasch, Filip Deberdt, Johnny Moors | 2010-05-04 |