Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877887 | Preparation of alkoxy maleic anhydrides | Rainer Becker | 1989-10-31 |
| 4844735 | 5-aryl-cyclohexane-1-3-dione derivatives, herbicides containing these compounds, and the preparation of these compounds | Dieter Jahn, Rainer Becker, Bruno Wuerzer | 1989-07-04 |
| 4804095 | Cutoff device for crane systems | Jochen Bohr | 1989-02-14 |