Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5349103 | Preparation of aromatic nitriles | — | 1994-09-20 |
| 5185435 | Process for the preparation of bisazo pigments in halogen-free solvents | Klaus Ruf, Michael Reisinger, Werner Surber | 1993-02-09 |