Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883253 | Process for the preparation of aromatic O-sulfocarboxylic acids and sulfonylureas | Urs Siegrist, Manfred Muller | 1999-03-16 |
| 4190602 | Monoacetals or aromatic 1,2-diketones | Rudolf Kirchmayr | 1980-02-26 |