Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832866 | Process for the production of free-flowing, stable foam inhibitor concentrates by compacting granulation | Paul Schulz, Juergen Waldmann, Franz-Josef Carduck, Martin Witthaus | 1989-05-23 |