Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6748134 | Frequency allocation scheme and transmission system for polarization and wavelength division multiplexed signals with left and right side filtering | Yann Frignac, Wilfried Idler | 2004-06-08 |
| 6738580 | Wavelength division multiplex transmission system using asymmetrical filtering | Yann Frignac | 2004-05-18 |