Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661220 | Reaction products of olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifiers for crude oil emulsions | Dieter Faul, Heinrich Hartmann, Hans-Henning Vogel, Wilhelmus Slotman, Gerd Konrad | 1997-08-26 |