Issued Patents All Time
Showing 26–50 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8492580 | Process for preparing isocyanates | Bernhard Geissler, Andreas Schmidt, Matthias Kloetzer | 2013-07-23 |
| 8450507 | Integrated method for the preparation of trioxane from formaldehyde | Markus Siegert, Neven Lang, Christoph Sigwart | 2013-05-28 |
| 8440856 | Method for treating residues from the production of isocyanates | Michael Bock, Martin Sesing | 2013-05-14 |
| 8436204 | Method for producing isocyanates | Carsten Knoesche, Dieter Stuetzer, Bernd Sachweh, Markus Linsenbühler, Andreas Woelfert | 2013-05-07 |
| 8378144 | Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol | Markus Siegert, Tobias Kortekamp, Christoph Sigwart, Neven Lang | 2013-02-19 |
| 8372993 | Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification | Neven Lang, Joachim Thiel, Julia Kirschbaum, Markus Siegert | 2013-02-12 |
| 8350063 | Method for separating tioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification | Markus Siegert, Neven Lang, Laszlo Szarvas, Christoph Sigwart, Franz Niklaus Windlin | 2013-01-08 |
| 8288584 | Process for preparing isocyanates | Carsten Knoesche, Andreas Woelfert, Torsten Mattke, Heinrich-Josef Blankertz, Bernhard Geissler | 2012-10-16 |
| 8273915 | Process for preparing isocyanates | Bernd Rumpf, Michael Bock, Martin Fiene | 2012-09-25 |
| 8258337 | Method for producing isocyanates | Andreas Woelfert, Carsten Knoesche, Andreas Daiss, Tsung-Chieh Cheng, Torsten Mattke | 2012-09-04 |
| 8212069 | Process for preparing isocyanates | Ralf Boehling, Sven Kueber, Stefan Maixner, Jochem Henkelmann, Georg Krug +1 more | 2012-07-03 |
| 8193385 | Method for producing isocyanates | Matthias Kloetzer, Heinrich-Josef Blankertz, Gunter Georgi, Volker Krase, Gerhard Schulz +1 more | 2012-06-05 |
| 8168818 | Method for producing isocyanates | Andreas Daiss, Andreas Woelfert, Carsten Knoesche | 2012-05-01 |
| 8097232 | Method for producing chlorine | Martin Sesing, Armin Diefenbacher, Hartwig Voss, Olga Schubert, Lothar Seidemann +2 more | 2012-01-17 |
| 8088944 | Method for the purification of isocyanates | Andreas Woelfert, Hans-Juergen Pallasch, Heinrich-Josef Blankertz | 2012-01-03 |
| 8044166 | Process for preparing pentamethylene 1,5-diisocyanate | Martin Fiene, Wolfgang Siegel, Stephan Freyer, Oskar Zelder, Gerhard Schulz | 2011-10-25 |
| 8026387 | Method for producing isocyanates | Matthias Kloetzer, Heinrich-Josef Blankertz | 2011-09-27 |
| 7999140 | Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers | Heiner Schelling, Hans Hasse, Sergej Blagov | 2011-08-16 |
| 7994361 | Moderate-pressure gas phase phosgenation | Andreas Woelfert, Christian Mueller, Markus Weber, Joachim Pfeffinger, Carsten Knoesche | 2011-08-09 |
| 7927080 | Method for operating a liquid ring compressor | Christian Müller, Martin Sesing, Martin Fiene, Oliver Huttenloch | 2011-04-19 |
| 7915444 | Method for producing diisocyanates | Andreas Woelfert, Carsten Knoesche, Manfred Heilig | 2011-03-29 |
| 7897806 | Method for producing polyisocyanates | Martin Sesing, Thorsten Rohde, Jochem Henkelmann | 2011-03-01 |
| 7851648 | Method for the continuous production of isocyanates | Martin Sohn, Filip Nevejans, Ulrich Penzel, Hans-Juergen Pallasch, Rene Leuthold +4 more | 2010-12-14 |
| 7754900 | Method for the production of dioxolane | Markus Siegert, Neven Lang, Achim Stammer | 2010-07-13 |
| 7736598 | Reactor and method for producing chlorine from HCl | Lothar Seidemann, Olga Schubert, Martin Sesing, Martin Fiene, Christian Walsdorff +1 more | 2010-06-15 |