Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9272988 | Method for producing diisocyanates by phosgenating diamine suspensions | Christian Steffens, Jens Krause, Stefan Wershofen, Werner Kilian, Marc Seekamp +1 more | 2016-03-01 |
| 8692016 | Gas-phase phosgenation process | Josef Sanders, Hanno Brummer, Bernd Sojka, Marcus Eichmann, Verena Haverkamp | 2014-04-08 |
| 7112693 | Process for producing aliphatic oligocarbonate diols | Jörg Tillack, Herbert Witossek, Andreas Schlemenat | 2006-09-26 |
| 6833433 | Method for producing aliphatic oligocarbonate diols | Andreas Schlemenat, Jörg Tillack, Herbert Witossek | 2004-12-21 |
| 6818784 | Process for producing aliphatic oligocarbonate diols | Jörg Tillack, Herbert Witossek, Andreas Schlemenat | 2004-11-16 |