Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867783 | Herbicidal sulfonamides | James V. Hay, Barry A. Wexler | 1989-09-19 |
| 4836846 | Herbicidal indole sulfonamides | — | 1989-06-06 |
| 4822403 | Herbicidal sulfonamides | James V. Hay, Barry A. Wexler | 1989-04-18 |