Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844909 | Controlled release hydromorphone composition | Sandra Therese Antoinette Malkowska, Stewart T. Leslie, Ronald Brown Miller | 1989-07-04 |
| 4834984 | Controlled release dihydrocodeine composition | Sandra Therese Antoinette Malkowska, Stewart T. Leslie, Ronald Brown Miller | 1989-05-30 |