Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648252 | Supported polyionic hydrogels containing biologically active material | Itzhak Kahane, Hilda Guttmann | 1997-07-15 |
| 5620706 | Polyionic insoluble hydrogels comprising xanthan and chitosan | Esteban Chornet, Pierre Vidal | 1997-04-15 |