Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658582 | Multilayer nonwoven tissue containing a surface layer comprising at least one hyaluronic acid ester | Lanfranco Callegaro | 1997-08-19 |
| 5622707 | Composite membranes for the guided regeneration of tissues | Lanfranco Callegaro, Aurelio Romeo | 1997-04-22 |