Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810174 | Optical filter and optical filtering method | Zhan Gao | 2004-10-26 |
| 6707541 | Device and method for detecting polarization mode dispersion | — | 2004-03-16 |
| 6678430 | Method for DC drift-free polarization transformation and DC drift-free polarization transformer | David Sandel | 2004-01-13 |