Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6751372 | Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM MUX-DEMUX and optical circulator combination | Mark David Feuer, Nicholas J. Frigo | 2004-06-15 |
| 6697574 | Multiple input waveguide grating router for broadcast and multicast services | Nicholas J. Frigo, Patrick P. Iannone, Kenneth C. Reichmann | 2004-02-24 |