Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235641 | Dyeing agent compositions based on polypropylene wax | Manfred Engelmann, Karl-Heinz Maier, Bernd Dewald, Hans-Joachim Lenz, Wolfgang Teige | 1980-11-25 |
AS
Arno Spange
Overall (All Time): #4,124,468 of 4,157,543Top 100%
1
Patents All Time