Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8816125 | Process for the continuous preparation of (cyclo)aliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski, Gerda Grund, Rainer Lomoelder | 2014-08-26 |
| 7557242 | Multistage continuous preparation of cycloaliphatic disocyanates | Stephan Kohlstruk, Manfred Kreczinski | 2009-07-07 |
| 7420080 | Multistage continuous preparation of cycloaliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski | 2008-09-02 |
| 7371891 | Multistage continuous preparation of cycloaliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski | 2008-05-13 |
| 7339074 | Multistage continuous preparation of cycloaliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski, Rainer Elm | 2008-03-04 |
| 7329776 | Multistage continuous preparation of cycloaliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski, Rainer Elm | 2008-02-12 |
| 7307186 | Multistage continuous preparation of cycloaliphatic diisocyanates | Stephan Kohlstruk, Manfred Kreczinski, Rainer Elm | 2007-12-11 |
| 5360931 | Continuous multi-stage process for the preparation of (cyclo) aliphatic diisocyanates | Gerd Bohmholdt, Wilhelm Heitmann, Peter Kirchner | 1994-11-01 |
| 5087739 | Circulation process for the production of aliphatic and cycloaliphatic diisocyanates | Gerd Bohmholdt, Josef Disteldorf, Peter Kirchner | 1992-02-11 |