Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336190 | Copper complex formazan compounds, process for their manufacture and their use as dyestuffs | Ernst Hoyer | 1982-06-22 |
GS
Gunther Schwaiger
Overall (1982): #61,711 of 81,411Top 80%
1
Patents 1982