Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12151997 | Method for preparing an amine hydrochloride suspension | Tim Loddenkemper, Frank Gerhartz, Stefan Hirschfeld | 2024-11-26 |
| 11795260 | Bulk material comprising solid diisocyanates and prepolymers containing urethane groups obtainable therefrom | Anna-Marie Zorn, Rainer Bellinghausen, Pascal Scherpian, Ralph Weber | 2023-10-24 |
| 11279670 | Process for separating an organic isocyanate | Manfred Kobylka, Dominik Duerig, Bernhard Seidel | 2022-03-22 |
| 11174222 | Multistep process for the preparation of diisocyanates | — | 2021-11-16 |
| 10919845 | Cleaning device for gas flows from isocyanate production | Manfred Kobylka, Dominik Duerig, Bernhard Seidel | 2021-02-16 |
| 10889539 | Aniline purification process | Friedhelm Steffens, Murat Kalem, Peter Lehner | 2021-01-12 |
| 10843927 | Energy-efficient method for providing a purified phosgene vapor | Martin Ehrig, Manfred Kobylka, Jan Morbach, Maria Carrascosa Mas, Christian Jens | 2020-11-24 |
| 9682917 | Method for treating a substance mixture comprising an aromatic amine, in particular a substance mixture of raw aniline | Thomas Knauf, Cliff Andre Peters, Thorsten Schmidt | 2017-06-20 |
| 9469594 | Method for stopping a reaction during the production of aromatic amines from nitroaromatics | Thomas Knauf, Cliff Andre Peters, Thorsten Schmidt, Karl-Heinz Wilke | 2016-10-18 |
| 9447021 | Process for the purification of aniline from gas phase hydrogenations | Peter Lehner, Bastian Mahr, Amgad Salah Moussa | 2016-09-20 |
| 9364810 | Chemical reactor with knitted wire mesh fabric as a holding device for particles | Karl-Heinz Wilke, Thomas Knauf | 2016-06-14 |
| 9290438 | Method for starting a reaction during the production of aromatic amines from nitroaromatics | Thomas Knauf, Cliff Andre Peters, Thorsten Schmidt | 2016-03-22 |
| 9284256 | Process for the production of nitrobenzene by adiabatic nitration | Thomas Knauf | 2016-03-15 |
| 9266094 | Catalyst and method for producing aromatic amines in the gas phase | Karl-Heinz Wilke, Peter Lehner | 2016-02-23 |
| 9260377 | Method for producing nitrobenzene by adiabatic nitriding | Thomas Knauf, Antoni Mairata | 2016-02-16 |
| 9139510 | Process for preparing aromatic amines | Karl-Heinz Wilke, Peter Lehner, Andre Lago, Erwin Dieterich | 2015-09-22 |
| 9012700 | Method for continuous production of nitrobenzene | Thomas Knauf | 2015-04-21 |
| 8753473 | Composite structural elements and method of making same | — | 2014-06-17 |
| 8560936 | Methods and computer systems for displaying time variant tabular data | Marlies Meessen | 2013-10-15 |
| 8484918 | Composite structural elements and method of making same | — | 2013-07-16 |
| 6331585 | Formulations for making protective paints and coatings | — | 2001-12-18 |
| 6117376 | Method of making foam-filled composite products | — | 2000-09-12 |