Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431565 | Surface-active compounds, a process for their preparation and their use | Siegfried Billenstein, Hildegard Freundl, Ignaz Wimmer, Fritz J. Gohlke | 1984-02-14 |
JM
Johannes Macenka
Overall (All Time): #4,029,590 of 4,157,543Top 100%
1
Patents All Time