Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5639754 | Urea and thiourea derivatives of azolones | Jan Heeres, Raymond A. Stokbroekx, Marcel Jozef Maria Van der Aa | 1997-06-17 |
| 5607932 | Heterocyclic derivatives of azolones | Jan Heeres, Raymond A. Stokbroekx, Robert Jozef Maria Hendrickx | 1997-03-04 |