Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863456 | Dosage form with improved delivery capability | Patrick S. L. Wong | 1989-09-05 |
| 4857330 | Chlorpheniramine therapy | Lawrence G. Hamel, Glen E. Barclay, Patrick S. L. Wong | 1989-08-15 |