Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281729 | Drying and purification of benzanthrone | Klaus Borho, Zafirios Grammatis, Karl-Heinz Hennicke, Karl Mayer, Karl-Heinz Sartor +3 more | 1994-01-25 |
| 4404389 | Thiazole containing coumarin compounds | Christos Vamvakaris, Manfred Patsch | 1983-09-13 |