Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6740781 | Process for separating reaction mixtures and recycling quaternary salts and bases | Sven Michael Hansen, Claus-Peter Reisinger | 2004-05-25 |
| 6734278 | Production of polyester carbonates | Silke Kratschmer, Wolfgang Alewelt, Friedrich-Karl Bruder, Wilfried Haese, Rolf Wehrmann +2 more | 2004-05-11 |
| 6734319 | Separation of impurities and/or valuable substances from solutions containing diaryl carbonate by solution crystallization | Claus-Peter Reisinger, Sven Michael Hansen, Hans-Peter Wirges | 2004-05-11 |
| 6734325 | Process for the separation of reaction mixtures and the recirculation of quaternary salts | Claus-Peter Reisinger, Sven Michael Hansen, Michael Traving | 2004-05-11 |
| 6727393 | Process for the preparation of organic solutions | Claus-Peter Reisinger, Sven Michael Hansen, Michael Traving | 2004-04-27 |
| 6706797 | Polycarbonate molding compounds with good demolding properties and molded bodied and semifinished products produced from the same | Wolfgang Ebert, Ralf Kaufmann, Christoph Schwemler, Wilfried Haese, Martin Döbler +1 more | 2004-03-16 |