Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7419540 | Swellable phyllosilicates | Markus Möller, Helmut Coutelle, Robert Warth | 2008-09-02 |
| 6541440 | Washing-agent additive | — | 2003-04-01 |
| 5582638 | Thickening agent based on at least one synthetic phyllosicate | Helmut Coutelle, Wolfgang Buckl | 1996-12-10 |