Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326066 | Triazolyl coumarin compounds, processes for their preparation and their use as whiteners and laser dyestuffs | Roderich Raue, Carl-Wolfgang Schellhammer | 1982-04-20 |
| 4317782 | Distyryl compounds | Edgar Siegel | 1982-03-02 |