Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857509 | 13.beta.-alkylmilbemycin derivatives for controlling parasites of animals and plants | Bruno Frei, Anthony Cornelius O'Sullivan | 1989-08-15 |
| 4855317 | Insecticides and parasiticides | — | 1989-08-08 |
| 4824845 | Pesticidal compositions | Odd Kristiansen | 1989-04-25 |