Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE35697 | Unit for amplifying light signals in optical fiber transmission lines | Aldo Righetti | 1997-12-23 |
| 5638204 | Optical power amplifier with Al.sub.2 O.sub.3 and erbium doped active fiber | Aldo Righetti, Fausto Meli | 1997-06-10 |