Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698705 | Isoindoline pigments | Frank Alfter, Erwin Dietz, Siegfried Schiessler | 1997-12-16 |
GK
Gustav Kapaun
Overall (1997): #146,402 of 185,788Top 80%
1
Patents 1997