Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849518 | Quinazolin-4(3H)-one derivatives as anticoccidial agents | — | 1989-07-18 |
| 4797486 | Heterocyclic ring fused pyrimidine-4(3H)-ones as anticoccidial agents | James W. McFarland | 1989-01-10 |