U.S. federal trademark · Serial No. 78155645
High density man made single crystal source materials, namely refractory metals in the nature of calcium fluoride, magnesium fluoride, zinc oxide, and germanium in the forms of windows, substrates, rods, tubes, ribbons and crucibles for use in optical devices, lasers, opto-electronics, sensors and detectors, and telecommunication devices including high-frequency integrated circuits, optical switches, surface acoustic wave devices, acoustic-optic modulators, multiplexer/demultiplexer, oscillators, resonators, beamsplitters, routers and filters
High density man made pure non-metallic silicon, sapphire, ruby, ti-sapphire, rock crystals, cubic zirconia and quartz sold in windows, substrates, rods, tubes, ribbons and crucibles for use in optical devices, lasers, opto-electronics, sensors and detectors, and telecommunication devices including high-frequency integrated circuits, optical switches, surface acoustic wave devices, acoustic-optic modulators, multiplexer/demultiplexer, oscillators, resonators, beamsplitters, routers and filters
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.