Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8133928 | Method for decanting preconditioned ion-exchange resin suspensions | Ernst-Joachim Alps, Ulrich Blaschke, Christian Münnich | 2012-03-13 |
| 7427694 | Process for the preparation of high-purity bisphenol A | Ulrich Blaschke, Arne Braun, Raymond Audenaert, Jesko Zank | 2008-09-23 |
| 7112703 | Production of bisphenol-A with reduced sulfur content | Rainer Neumann, Ulrich Blaschke | 2006-09-26 |
| 7078573 | Dewatering of circulatory flows in the production of bisphenol A | Rainer Neumann, Ulrich Blaschke | 2006-07-18 |
| 6972345 | Extraction of phenol-containing effluent streams | Ulrich Blaschke | 2005-12-06 |
| 6716933 | Working up of polymer synthesis solutions | Wolfgang Alewelt, Wolfgang Ebert, Thomas Fritz, Dirk Jahn, Frank Bruynseels +1 more | 2004-04-06 |
| 6268538 | Method for producing and purifying 3-(4-Hydroxyphenyl)-1, 1,3-trimethylindan-5-ol | Claudia Laukotter, Jurgen Stebani, Gerhard Fennhoff | 2001-07-31 |
| 6235945 | Method for preparing and purifying 3-(4-hydroxyphenyl)-1,1,3-trimethylindan-5-ol | — | 2001-05-22 |
| 6225512 | Method for producing and purifying 3-(3-hydroxyphenyl)-1,1,3-trimethylindan-5-ol | Franz Kosik, Wolfgang Calaminus, Wilfried Haese | 2001-05-01 |
| 6218502 | Copolycarbonates with an indane bisphenol base | Annett Konig, Jurgen Stebani, Friedrich-Karl Bruder, Wilfried Haese | 2001-04-17 |