U.S. Patent Classes & Classifications Covered in this Patent Portfolio: Class 250: Radiant Energy This class provides for all methods and apparatus for using, generating, controlling or detecting radiant energy, combinations including such methods or apparatus, subcombinations of same and accessories therefore not classifiable elsewhere.Subclass 250: RADIO AND MICROWAVE ABSORPTION WAVEMETERS
Subclass 310: Electron probe type
Subclass 311: Electron microscope type
Subclass 396R: WITH CHARGED PARTICLE BEAM DEFLECTION OR FOCUSSING
Subclass 397: With detector
Subclass 492.2: Irradiation of semiconductor devices
Subclass 492.21: Ion bombardment
Subclass 492.22: Pattern control
Subclass 492.23: Variable beam
Class 445: Electric Lamp Or Space Discharge Component Or Device Manufacturing This is the residual and generic class of process and apparatus for the manufacturing, fabrication, repair, salvage, assembly, disassembly or other treatment of an electric lamp, liquid crystal display device or an electric space discharge device which process or apparatus is not elsewhere classified.Subclass 33: Plural electrode mounting
Subclass 35: Electrode making
Subclass 46: Electrode making
Subclass 50: Emissive type
Class 359: Optical: Systems And Elements Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.Subclass 819: Lens mounts
Class 313: Electric Lamp And Discharge Devices This is the generic class for electric lamp and electric space discharge device structure. Examples of such devices are electric incandescent lamps, gas or vapor filled electric discharge tubes, including lamps, mercury arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission electron multipliers, spark plugs, and open air arc and spark devices.Subclass 251: Plural electrodes supported along the length of a wire, rod, or tube
Subclass 293: DISCHARGING DEVICES WITH APERTURED ELECTRODE (E.G., GRID) INTERPOSED BETWEEN TWO ELECTRODES
Subclass 447: With control grid adjacent cathode
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