Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187858 | Method for recovering raw materials from polyurethane products | Sebastian Pohl, Shabnam Majidi Salehi, Jonas Krause | 2025-01-07 |
| 11267703 | Method and a system for separating and treating impurities from a hydrogen chloride liquid mixture | Andre RITTERMEIER, Rainer Hellmich, Alfred Soppe, Luyan Wu, Micky Qian +4 more | 2022-03-08 |
| 10894222 | Distributor device, in particular for falling film evaporators, and use thereof | Christian Drumm, Dieter Hoffmann | 2021-01-19 |
| 10889539 | Aniline purification process | Michael Merkel, Murat Kalem, Peter Lehner | 2021-01-12 |
| 10676448 | Method for producing TDI-trimerisates with high purity | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Oswald Wilmes +3 more | 2020-06-09 |
| 10576392 | Distillation column and use thereof for cleaning isocyanates | Wilfried Hedderich, Jürgen Bausa, Franz Beggel, Volker Michele | 2020-03-03 |
| 10435353 | Method for producing isocyanates | Joachim Zechlin, Tim Loddenkemper, Dietmar Wastian | 2019-10-08 |
| 10239826 | Method for producing isocyanates | Bastian Mahr | 2019-03-26 |
| 10189945 | Method for producing light-coloured TDI-polyisocyanates | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Oswald Wilmes +2 more | 2019-01-29 |
| 10143987 | Method for dividing fluid streams | Berthold Keggenhoff, Jeffrey Bolton, Marc Seekamp, Gerhard Ruffert, Jürgen Kern +1 more | 2018-12-04 |
| 10131641 | Method for producing TDI-trimerisates with high purity | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Oswald Wilmes +3 more | 2018-11-20 |
| 10011484 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Juergen Bittner, Thorsten Leidig, Knud Werner, Thomas Runowski | 2018-07-03 |
| 9938147 | Process for purifying raw-material gases by fractionation | Alfred Soppe, Juergen Bittner, Thorsten Leidig, Knud Werner, Thomas Runowski | 2018-04-10 |
| 9932299 | Process for separating an isocyanate prepared by phosgenation of a primary amine in the gas phase from the gaseous crude product of the phosgenation | Bastian Mahr | 2018-04-03 |
| 9845286 | Process for operating a gas phase phosgenation plant | Thomas Knauf, Wolfgang Lorenz, Rainer Bruns, Wolfgang Taube | 2017-12-19 |
| 9840461 | Method for operating a gas-phase phosgenation plant | Thomas Knauf, Wolfgang Lorenz, Rainer Bruns, Wolfgang Taube | 2017-12-12 |
| 9688619 | Process for obtaining organic isocyanates from distillation residues from isocyanate preparation | Klaus Tidow, Andreas Hecking, Jan Busch, Frank Richter | 2017-06-27 |
| 9480958 | Device and method for producing phosgene | Ulrich Hollmann, Wolfgang Lorenz, Thomas Runowski | 2016-11-01 |
| 9376377 | Method for producing isocyanates | Jan Busch, Markus Hollaus | 2016-06-28 |
| 9365503 | Process for the preparation of isocyanates in the gas phase | Klaus Biskup, Rainer Bruns, Wolfgang Lorenz, Lars Padeken, Bernd Pennemann +2 more | 2016-06-14 |
| 9029595 | Method for working up distillation residues from isocyanate production | Tim Loddenkemper, Rainer Bellinghausen, Hartwig Kempkes | 2015-05-12 |
| 9024057 | Process for the preparation of isocyanates in the gas phase | Klaus Biskup, Rainer Bruns, Wolfgang Lorenz, Fritz Pohl, Volker Michele | 2015-05-05 |
| 8563768 | Process for the preparation of isocyanates | Rainer Bruns, Wolfgang Lorenz, Herbert Stutz | 2013-10-22 |
| 8399702 | Process for the production of aromatic diisocyanates in the gas | Fritz Pohl, Klaus Biskup, Rainer Bruns, Lars Padeken | 2013-03-19 |
| 8063241 | Process for the preparation of toluene-diisocyanate | Wolfgang Lorenz, Lars Padeken, Bernd Pennemann, Lothar Weismantel | 2011-11-22 |