Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515639 | Azo pigment formulations | Peter Dopfer, Siegfried Schwerin | 1985-05-07 |
JO
Johann Ostermeier
Overall (All Time): #4,014,562 of 4,157,543Top 100%
1
Patents All Time