Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830661 | Substituted tetrazolinones and herbicidal compositions thereof | Rupert A. Covey, Patricia J. Forbes, Allen R. Blem | 1989-05-16 |
| 4826529 | Substituted tetrazolinones and herbicidal compositions thereof | Rupert A. Covey, Patricia J. Forbes, Allen R. Blem | 1989-05-02 |