Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6452707 | Method and apparatus for improving spectral efficiency in fiber-optic communication systems | Alexei N. Pilipetskii | 2002-09-17 |
| 6341023 | Multiple level modulation in a wavelength-division multiplexing (WDM) systems | — | 2002-01-22 |