Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855273 | Acid-resistant catalysts for the direct hydrogenation of fatty acids to fatty alcohols | Joachim Pohl, Franz-Josef Carduck | 1989-08-08 |
| 4820517 | Process for obtaining a pepper extract with insecticidal activity | Hans Pfeiffer, Manfred Biermann, Peter Schroeder, Annemarie Mueller | 1989-04-11 |