Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822619 | Controlled release pharmaceutical preparation containing a gastrointestinal irritant drug | Brent D. Massman | 1989-04-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822619 | Controlled release pharmaceutical preparation containing a gastrointestinal irritant drug | Brent D. Massman | 1989-04-18 |