Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840909 | Method of preparing a sulfonamide-food color additive for detection of sulfonamides in animal feeds and pharmaceuticals preparations | — | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840909 | Method of preparing a sulfonamide-food color additive for detection of sulfonamides in animal feeds and pharmaceuticals preparations | — | 1989-06-20 |