Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863735 | Biodegradable polymeric drug delivery system with adjuvant activity | Robert S. Langer, Steven M. Niemi, James G. Fox | 1989-09-05 |
| 4806621 | Biocompatible, bioerodible, hydrophobic, implantable polyimino carbonate article | Robert S. Langer | 1989-02-21 |