Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040878 | Method for flexibly controlling the use of hydrochloric acid from chemical production | Andreas Bulan, Rainer Weber, Juergen Hecke, Wolfgang Kern, Martin Leipnitz +1 more | 2021-06-22 |
| 10836076 | Process for extruding plastic compositions | Michael Bierdel, Thomas Koenig, Carsten Conzen, Ulrich Liesenfelder, Klemens Kohlgrueber +1 more | 2020-11-17 |
| 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, Ing. Johan Vaes +3 more | 2019-10-08 |
| 9944008 | Method for extruding plastic materials | Thomas Koenig, Michael Bierdel, Ulrich Liesenfelder, Klemens Kohlgrüber | 2018-04-17 |
| 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, Ing. Johan Vaes +3 more | 2017-11-28 |
| 9738025 | Method for extruding plastic masses | Thomas König, Michael Bierdel, Carsten Conzen, Ulrich Liesenfelder, Klemens Kohlgrüber +1 more | 2017-08-22 |
| 9040732 | Process for preparing diaryl carbonates from dialkyl carbonates | Andre Düx, Guenter Olf, Kaspar Hallenberger, Georg Ronge, Ricarda Leiberich +3 more | 2015-05-26 |
| 8987446 | Bimetallic complexes and the use thereof in producing diaryl carbonate | Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Friedhelm Risse, Angelina Prokofieva +4 more | 2015-03-24 |
| 8952189 | Process for preparing diaryl carbonates or alkyl aryl carbonates from dialkyl carbonates | Andre Düx, Helmut Mothes, Kaspar Hallenberger, Georg Ronge, Rafael Warsitz +1 more | 2015-02-10 |
| 8882984 | Process for preparing diaryl carbonate | Pieter Ooms, Andreas Bulan, Rainer Weber, Michael Traving, Marc Buts +1 more | 2014-11-11 |
| 8648163 | High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s | Dieter Freitag, Pin Go, Lawino Kagumba, Stephan Konrad, Helmut-Werner Heuer +3 more | 2014-02-11 |
| 8518231 | Process for production of diaryl carbonate | Pieter Ooms, Andreas Bulan, Rainer Weber, Marc Buts, Johan Vanden Eynde | 2013-08-27 |
| 8394912 | Process and apparatus for the preparation of polycarbonate | Frank Doebert, Andreas Stremmel, Christoph Biedron, Stephan Laue, Torsten Hagen +9 more | 2013-03-12 |
| 8389664 | High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s | Dieter Freitag, Pin Go, Lawino Kagumba, Stephan Konrad, Helmut-Werner Heuer +3 more | 2013-03-05 |
| 8354028 | Method for separating an organic phase from an electrolyte-containing aqueous and organic phase | Helmut Meyer, Guido Naberfeld, Rafael Warsitz, Michael Traving, Werner Bäcker +9 more | 2013-01-15 |
| 8304509 | Process for preparing diaryl carbonates from dialkyl carbonates | Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Friedhelm Risse, Franco Doro +1 more | 2012-11-06 |
| 8173762 | Process for the preparation of polycarbonate | Pieter Ooms, Andreas Bulan, Rainer Weber, Marc Buts, Johan Vanden Eynde | 2012-05-08 |
| 8106144 | Process for producing polycarbonate | Pieter Ooms, Andreas Bulan, Rainer Weber, Michael Traving | 2012-01-31 |
| 8039659 | Processes for preparing diaryl and/or alkylaryl carbonates from dialkyl carbonates | Andre Düx, Pieter Ooms, Matthias Böhm, Kaspar Hallenberger, Georg Ronge +1 more | 2011-10-18 |
| 8022240 | Processes for purifying diaryl carbonates | Pieter Ooms, Matthias Böhm, Andre Düx, Kaspar Hallenberger, Georg Ronge +1 more | 2011-09-20 |
| 8003817 | Process for the preparation of diaryl carbonates or arylalkyl carbonates from dialkyl carbonates | Andre Düx, Pieter Ooms, Kaspar Hallenberger, Georg Ronge, Johan Vanden Eynde | 2011-08-23 |
| 7858727 | Process for the preparation of polycarbonate | Pieter Ooms, Andreas Bulan, Rainer Weber | 2010-12-28 |
| 7056855 | Liquid tetrabutyl ammonium phenolate formulation | Carsten Hesse, Ursula Jansen | 2006-06-06 |
| 6841626 | Method for hydrogenating aromatic polymers in the presence of special catalysts | Volker Wege, Konstadinos Douzinas | 2005-01-11 |
| 6747118 | Storage of phosphonium phenolate catalysts and their use as interesterification catalysts | Melanie Moethrath, Uwe Hucks, Silke Kratschmer | 2004-06-08 |