About 4 Trademarks found that are filed by the law firm Andrew Spector

Integrated optical components, namely, filters, optical add/drop multiplexers, tunable filters, optical cross-connects, optical compensators, variable optical attenuators and dynamic gain flattening filters for optical telecommunications and for sensor applications

AWG-based multiplexers and demultiplexers for telecommunications and for sensor applications

Material system comprised of silicon and one or more of the following-- oxygen, nitrogen, carbon, germanium, fluorine, phosphorus, and boron, used for optical waveguide components and devices, namely, amplitude filters, phase filters, dispersion compensators, variable optical attenuators, switches or add/drop multiplexers for use in telecommunications

Two or three-port continuously tunable bandpass filters for telecommunications applications