Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282355 | Process for the manufacture of bis-benzoxazolyl-stilbene compounds | Rudiger Erckel | 1981-08-04 |
| 4233026 | Reducing grinding time and compositions therefor | Gerhard Hitschfel, Rudolf Munk | 1980-11-11 |