Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667804 | Banded prolonged release active agent dosage form | Patrick S. L. Wong, David E. Edgren, Liang Dong | 1997-09-16 |
| 5614578 | Injection-molded dosage form | Liang Dong, Patrick S. L. Wong, Crystal Pollock | 1997-03-25 |