Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10457775 | Method for producing high molecular weight polyoxyalkylene polyols | Klaus Lorenz, Horst Zwick, Markus Bodenmüller, Stephan Eckelmann, Friedhelm Baer | 2019-10-29 |
| 9139691 | Process for preparing high molecular weight polyether polyols | Klaus Lorenz, Jörg Hofmann, Horst Zwick, Edward P. Browne | 2015-09-22 |
| 6919293 | Double metal cyanide catalysts for producing polyether polyols | Pieter Ooms, Jörg Hofmann, Stephan Ehlers | 2005-07-19 |
| 6806345 | Aliphatic polycarbonate homo-and co-polymers produced by DMC catalysis and the process for their production | Jörg Hofmann, Walter Schafer | 2004-10-19 |
| 6776925 | Process for the preparation of polyether polyols | Jörg Hofmann, Stephan Ehlers, Bernd Klinksiek, Lars Obendorf, Bert Klesczewski +1 more | 2004-08-17 |
| 6670406 | Process for producing polyether polyols | Jörg Hofmann, Stephan Ehlers, Bernd Klinksiek, Bert Klesczewski, Lars Obendorf +2 more | 2003-12-30 |
| 6646100 | Aliphatic polycarbonate homo-and co-polymers produced by DMC catalysis and the process for their production | Jörg Hofmann, Walter Schafer | 2003-11-11 |
| 6486361 | Method for preparing polyether polyols | Stephan Ehlers, Jörg Hofmann, Manfred Dietrich, Pramod Gupta, Horst Zwick | 2002-11-26 |
| 6242656 | Method for producing a dinitronaphthalene-isomer mixture having a high 1,5-dinitronaphthalene proportion | Gerhard Wegener | 2001-06-05 |