Issued Patents All Time
Showing 25 most recent of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10377689 | Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions | Jakob Burger, Niklas Schmitz, Hans Hasse | 2019-08-13 |
| 9079822 | Process for the preparation of nitrated aromatics and mixtures thereof | Wolfgang Mackenroth, Johannes Buettner, Wolfgang Voigt, Frank Bok | 2015-07-14 |
| 9061971 | Method for purifying residues containing isocyanates | Andreas Wölfert, Carsten Knösche, Matthias Klotzer, Hermann Ascherl, Heinrich-Josef Blankertz +3 more | 2015-06-23 |
| 9006481 | Process and apparatus for preparing isocyanates | Torsten Mattke, Carsten Knoesche, Bernd Rumpf | 2015-04-14 |
| 9000213 | Process for coproducing di- and/or polyisocyanates and glycols | Michael Bock, Robert Baumann, Axel Franzke, Gerhard Theis | 2015-04-07 |
| 8933262 | Process for preparing polyisocyanates from biomass | Otto Machhammer, Stefan Bitterlich, Roman Prochazka, Mario Emmeluth, Julia Leschinski +6 more | 2015-01-13 |
| 8859805 | Process for preparing isocyanates | Torsten Mattke, Matthias Kloetzer, Bernhard Geissler, Peter Zehner | 2014-10-14 |
| 8853443 | Process for preparing an isocyanate | Daniel Breuninger, Johannes Adam, Heiner Schelling, Markus Kraemer, Matthias Eiermann +3 more | 2014-10-07 |
| 8841480 | Process for the preparation of light-colored iocyanates of a diphenylmethanediisocyanate series | Heiner Schelling, Hans-Juergen Pallasch, Jon S. Speier, Byoung-Yeon Kim | 2014-09-23 |
| 8835673 | Process for preparing isocyanates | Torsten Mattke, Julia Leschinski, Radwan Abdallah, Axel Franzke, Michael Bock | 2014-09-16 |
| 8829232 | Process for preparing aromatic isocyanates | Ulrich Penzel, Torsten Mattke, Andreas Wölfert, Johannes Jacobs, Tsung-Chieh Cheng +6 more | 2014-09-09 |
| 8822718 | Process for preparing isocyanates by thermally cleaving carbamates | Michael Bock, Robert Baumann, Axel Franzke, Joachim Pfeffinger | 2014-09-02 |
| 8772535 | Process for preparing isocyanates | Ralf Boehling, Sven Kueber, Stefan Maixner, Jochem Henkelmann, Georg Krug +1 more | 2014-07-08 |
| 8759569 | Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation | Heiner Schelling, Ulrich Penzel, Matthias Eiermann, Jon S. Speier, Kai Thiele +1 more | 2014-06-24 |
| 8748655 | Process for preparing light-coloured isocyanates of the diphenylmethane series | Heiner Schelling, Jon S. Speier, Byoung-Yeon Kim | 2014-06-10 |
| 8710267 | Process for preparing MDA via the stage of the aminal | Kai Thiele, Michael Zoellinger, Johnny Moors, Jon S. Speier | 2014-04-29 |
| 8686182 | Process for preparing isocyanates and/or polyisocyanates | Julia Leschinski, Torsten Mattke, Gerrit Waters | 2014-04-01 |
| 8680333 | Process for the preparation of aromatic formamides | Axel Franzke, Torsten Mattke, Julia Leschinski, Radwan Abdallah, Michael Bock +1 more | 2014-03-25 |
| 8680323 | Process for preparing isocyanates by thermal dissociation of carbamates | Michael Bock, Axel Franzke, Robert Baumann | 2014-03-25 |
| 8614352 | Method for producing color-stable MDA and MDI | Heiner Schelling, Robert Reinhardt, Michael Zoellinger, Daniel Breuninger, Markus Kraemer +2 more | 2013-12-24 |
| 8592637 | Process for preparing mononitrated organic compounds | Leo Denissen, Jan-Dirk Arndt, Torsten Mattke, Kerstin Heinen, Julia Leschinski | 2013-11-26 |
| 8546605 | Process for the preparation of isocyanates | Matthias Kloetzer, Volker Krase, Andreas Schmidt, Peter Scherbel | 2013-10-01 |
| 8546606 | Method for producing polyisocyanates | Andreas Brodhagen, Martin Sohn, Filip Nevejans, Andreas Woelfert, Steffen Oehlenschlaeger | 2013-10-01 |
| 8530678 | Trioxane production method wherein a side aqueous flow is deducted at a first distillation stage | Markus Siegert, Neven Lang, Achim Stammer, Thorsten Friese | 2013-09-10 |
| 8519179 | Method of measuring entry of water into phosgene-conducting plants | Heiner Schelling, Ulrich Penzel, Dirk Hablawetz, Dave Beckwith, Kai Thiele +6 more | 2013-08-27 |