Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9029594 | Separation of ammonium chloride from the gas phase of an isocyanate production process | Ralf Schneider, Bernd Schwethelm, Rolf Schiefer, Jurgen Dreher | 2015-05-12 |
| 7091370 | Process for the preparation of diaryl carbonates | Claus-Peter Reisinger, Peter Fischer | 2006-08-15 |
| 6992222 | Process for the preparation of quaternary salt phenolate solutions | Claus-Peter Reisinger, Peter Fischer | 2006-01-31 |
| 6986816 | Method for removing deposits from chemical reactors | Claus-Peter Reisinger, Peter Fischer, Konrad Triebeneck, Joachim Helbig | 2006-01-17 |
| 6914149 | Separation of impurities and/or valuable substances from solutions containing diaryl carbonate by solution crystallization | Claus-Peter Reisinger, Peter Fischer, Hans-Peter Wirges | 2005-07-05 |
| 6852872 | Process for producing diaryl carbonates | Claus-Peter Reisinger, Peter Fischer | 2005-02-08 |
| 6740781 | Process for separating reaction mixtures and recycling quaternary salts and bases | Peter Fischer, Claus-Peter Reisinger | 2004-05-25 |
| 6734319 | Separation of impurities and/or valuable substances from solutions containing diaryl carbonate by solution crystallization | Claus-Peter Reisinger, Peter Fischer, Hans-Peter Wirges | 2004-05-11 |
| 6734325 | Process for the separation of reaction mixtures and the recirculation of quaternary salts | Claus-Peter Reisinger, Peter Fischer, Michael Traving | 2004-05-11 |
| 6727393 | Process for the preparation of organic solutions | Claus-Peter Reisinger, Peter Fischer, Michael Traving | 2004-04-27 |