Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867783 | Herbicidal sulfonamides | James V. Hay, Donna F. Zimmerman | 1989-09-19 |
| 4846878 | Herbicidal pyrazole sulfonamides | — | 1989-07-11 |
| 4838926 | Herbicidal pyridine sulfonamides | Mary Ann Hanagan | 1989-06-13 |
| 4822403 | Herbicidal sulfonamides | James V. Hay, Donna F. Zimmerman | 1989-04-18 |