Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10875827 | Process for preparing an isocyanate by partly adiabatic phosgenation of the corresponding amine | Thomas Knauf, Juergen Spriewald, Anke Hielscher, Volker Michele, Dietmar Wastian | 2020-12-29 |
| 10851048 | Process for preparing an isocyanate by partly adiabatically operated phosgenation of the corresponding amine | Thomas Knauf, Anke Hielscher, Dietmar Wastian, Juergen Spriewald | 2020-12-01 |
| 10815193 | Process for providing hydrogen chloride for chemical reactions | Jan Busch, Jürgen Arras | 2020-10-27 |
| 10112892 | Process for preparing polyisocyanates | Jürgen Arras, Jan Busch, Dietmar Wastian, Manfred Keller-Killewald, Holger Conzelmann | 2018-10-30 |
| 9272988 | Method for producing diisocyanates by phosgenating diamine suspensions | Jörg Laue, Jens Krause, Stefan Wershofen, Werner Kilian, Marc Seekamp +1 more | 2016-03-01 |
| 8079752 | Process and mixing unit for the preparation of isocyanates by phosgenation of primary amines | Andreas Rausch, Dietmar Wastian, Manfred Keller-Killewald, Matthias Böhm, Joachim C. Ritter +1 more | 2011-12-20 |
| 7368595 | Process for the production of light-colored isocyanates | Stefan Wershofen, Torsten Hagen, Jeffrey Bolton | 2008-05-06 |
| 6844462 | Biphenydiols | Birgit Drieben-Holscher, Joachim Kralik, Inga Ritzkopf, Guido Giffels, Claus Dreisbach +1 more | 2005-01-18 |
| 6566298 | Diphosphines | Birgit Driessen-Holscher, Joachim Kralik, Inga Ritzkopf, Guido Giffels, Claus Dreisbach +2 more | 2003-05-20 |
| 6462200 | Diphosphines | Birgit Driessen-Holscher, Joachim Kralik, Inga Ritzkopf, Guido Giffels, Claus Dreisbach +2 more | 2002-10-08 |