Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880628 | Sustained release composition | William Maxwell Allen, Jr., Alan D. Wilson, Havard J. Prosser, David M. Groffman | 1989-11-14 |
| 4661339 | Sustained release composition | William Maxwell Allen, Jr., Alan D. Wilson, Havard J. Prosser, David M. Groffman | 1987-04-28 |