Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7579299 | Semi-synthetic bleaching earth | Jose Antonio Ortiz Niembro, Klaus Schurz, Werner Zschau | 2009-08-25 |
| 7053023 | Method for the production of adsorption agent granules based on acid-activated layer silicates | — | 2006-05-30 |
| 6995108 | Method for producing catalysts by acid activation | — | 2006-02-07 |
| 6166278 | Use of naturally acid smectites to remove olefins from aromatics or aromatic mixtures and processes therewith | Thomas Engelhardt, Reinhard Hahn, Werner Zschau | 2000-12-26 |
| 6133497 | Catalyst for removing olefins from aromatic compounds or mixtures thereof | Reinhard Hahn, Thomas Engelhardt, Werner Zschau | 2000-10-17 |