Patterned optical interference coatings for only a portion of a
Photo catalyzer and discharge lamp having a photo catalytic...
Photocatalyzer and lamp or lighting fixture having a...
Plasma display sealing structure
Plasma lighting bulb with metal provided in grooves formed...
Process for marking a glass object and article
Protective beryllium oxide coating for high-intensity discharge
Protective metal silicate coating for a metal halide arc dischar
Protective metal silicate coating for electrodeless HID lamps