Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849007 | Herbicidal epoxides | Walter Kunz | 1989-07-18 |
| 4831148 | Process for the preparation of fluorinated pyridine derivatives | Rolf Schurter, Urs Siegrist, Peter Baumeister | 1989-05-16 |
| 4802909 | Ureas and their use as herbicides | Erich Stamm, Rudolph C. Thummel | 1989-02-07 |