Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6191122 | Partially hydrophobic precipitated silicas | Heinz-Gunter Lux, Karl Meier, Astrid Muller, Anja Ramb | 2001-02-20 |
| 6177124 | Active-substance concentrate | Brigitte Grinschgl | 2001-01-23 |
| 4410589 | Process for improving the mineral asphalt coatings for streets and paths and products | Karl-Hans Muller, Walter Barthel | 1983-10-18 |