Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874613 | Taste concealing pharmaceutical dosage unit | — | 1989-10-17 |
| 4863743 | Controlled release potassium chloride | Chi-Tsun CHOU | 1989-09-05 |
| 4803079 | Controlled release naproxen and naproxen sodium tablets | John S. Kent | 1989-02-07 |