Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11225451 | Process for the preparation of 3,3,4-trimethylcyclohexylidene bisphenol (BP-TMC) | Kristof Heylen, Anja Ehrig, Lars Frye | 2022-01-18 |
| 10435507 | Ultra-high purity polycarbonates having good inherent color and thermal resistance and a device and a method for producing the same | Thomas Koenig, Joerg Kirchhoff, Michael Bierdel, Klemens Kohlgrueber, Johann Rechner +3 more | 2019-10-08 |
| 10131617 | Method for producing diaryl carbonates | Karl-Heinz Köhler, Ricarda Leiberich, Kaspar Hallenberger, Korbinian Krämer, Florian Lipski +3 more | 2018-11-20 |
| 10125083 | Method for producing diaryl carbonates | Karl-Heinz Köhler, Ricarda Leiberich, Kaspar Hallenberger, Korbinian Krämer, Florian Lipski +3 more | 2018-11-13 |
| 9828464 | Ultra-high purity polycarbonates having good inherent color and thermal resistance and a device and a method for producing the same | Thomas König, Jörg Kirchhoff, Michael Bierdel, Klemens Kohlgrüber, Johann Rechner +3 more | 2017-11-28 |
| 9771451 | Method for producing polycarbonate according to the phase interface method | Hermann Kauth, Stephan Laue, Jan Heijl, Rolf Bachmann, Franky Bruynseels +2 more | 2017-09-26 |
| 9765012 | Method for producing diaryl carbonate | Karl-Heinz Köhler, Henning Kahnis, Gabriel Denecker, Ricarda Leiberich, Kaspar Hallenberger +2 more | 2017-09-19 |
| 9475751 | Process for producing dialkyl carbonates | Pieter Ooms, Friedhelm Risse, Andre Düx, Carsten Buchaly, Thomas Pancur +3 more | 2016-10-25 |
| 9040732 | Process for preparing diaryl carbonates from dialkyl carbonates | Andre Düx, Guenter Olf, Kaspar Hallenberger, Georg Ronge, Ricarda Leiberich +3 more | 2015-05-26 |
| 8882984 | Process for preparing diaryl carbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Michael Traving +1 more | 2014-11-11 |
| 8552214 | Process for preparing dialkyl carbonates | Pieter Ooms, Friedhelm Risse, Andre Düx, Carsten Buchaly, Thomas Pancur +3 more | 2013-10-08 |
| 8518231 | Process for production of diaryl carbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Marc Buts | 2013-08-27 |
| 8497345 | Device and method for degassing solvent-containing polycarbonate solutions | Thomas König, Klemens Kohlgrüber, Ing Johan Vaes, Stefaan De Vos | 2013-07-30 |
| 8383757 | Device and method for degassing solvent-containing polycarbonate solutions | Thomas König, Klemens Kohlgrüber, René de Cleyn, Johan Vaes, Dirk Van Meirvenne | 2013-02-26 |
| 8338631 | Process for preparing dialkyl carbonates from alkylene carbonates and alcohols | Friedhelm Risse, Pieter Ooms, Andre Düx, Marcus Grünewald, Thomas Pancur +3 more | 2012-12-25 |
| 8173762 | Process for the preparation of polycarbonate | Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Marc Buts | 2012-05-08 |
| 8039659 | Processes for preparing diaryl and/or alkylaryl carbonates from dialkyl carbonates | Andre Düx, Pieter Ooms, Johann Rechner, Matthias Böhm, Kaspar Hallenberger +1 more | 2011-10-18 |
| 8022240 | Processes for purifying diaryl carbonates | Pieter Ooms, Johann Rechner, Matthias Böhm, Andre Düx, Kaspar Hallenberger +1 more | 2011-09-20 |
| 8003817 | Process for the preparation of diaryl carbonates or arylalkyl carbonates from dialkyl carbonates | Andre Düx, Pieter Ooms, Johann Rechner, Kaspar Hallenberger, Georg Ronge | 2011-08-23 |
| 7847051 | Phase boundary processes for preparing polycarbonates | Wolfgang Ebert, Christian Kords, Rolf Bachmann, Lars Obendorf, Bert Ruytinx +1 more | 2010-12-07 |
| 7279544 | Transesterification process for the production of polycarbonates having a low content of volatile compounds | Uwe Hucks, Melanie Mothrath, Helmut-Werner Heuer, Thomas König, Lydia Simon +1 more | 2007-10-09 |
| 6680400 | Continuous process for the production of carboxylic acid diaryl esters | Wolfgang Alewelt, Steffen Kuhling, Dirk Van Meirvenne | 2004-01-20 |