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Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

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 290: By changing physical characteristics (e.g., shape, size or contours) of an optical element
Subclass 291: Shape or contour of light control surface altered
Subclass 295: Having multiple electrodes
Subclass 308: Filter

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 100: Particular row or column control (e.g., shift register)
Subclass 102: Backlight control
Subclass 690: Intensity or color driving control (e.g., gray scale)
Subclass 82: Solid body light emitter (e.g., LED)
Subclass 83: Color
Subclass 87: Liquid crystal display elements (LCD)
Subclass 88: Color
Subclass 99: Particular timing circuit

Class 341: Coded Data Generation Or Conversion

1) originating or emitting a coded set of discrete signals or 2) translating one code into another code wherein the information signal content remains the same but the formats may differ. For classification herein, at least one of the codes must be a set of pulses or digits and electrical in nature.

Subclass 141: Multiplex

Class 315: Electric Lamp And Discharge Devices: Systems

Electric lamp and electric space discharge device systems: structural combinations with circuit elements; structural combinations with heating and/or cooling means; cathode-ray tubes; lamps and/or discharge devices as sole load devices; lamps; electric space discharge devices gas or vapor discharge devices; high vacuum-type discharge devices, and gas or vapor-type discharge devices claimed broadly; plural load device systems; art uses and combinations with art devices; testing electric lamps and discharge devices; and operating a lamp or a gas or vapor discharge device.

Subclass 10: With radiant energy sensitive control means
Subclass 150: Radiant energy responsive load device
Subclass 158: Radiant energy controlled regulation of the current supply for the load device
Subclass 159: Electric switch controlled by the radiant energy responsive device
Subclass 169.1: Diverse-type energizing or bias supplies to different electrodes
Subclass 169.3: Electroluminescent device
Subclass 294: Plural load device regulation
Subclass 307: Automatic regulation
Subclass 316: Keyboard or pattern controlled switch

Class 362: Illumination

Means and processes for casting visible radiant energy in at least one direction to render objects in that direction visible.

Subclass 231: Different wavelengths
Subclass 235: With modifier
Subclass 240: Units have common housing
Subclass 26: Edge illuminated modifier or light rod/pipe
Subclass 27: Plural light sources
Subclass 276: Condition responsive
Subclass 29: Internal light source
Subclass 295: With rheostat or switch
Subclass 331: Plural serial refractors
Subclass 334: Curved main surface
Subclass 552: With intensity control
Subclass 555: Light Emitting Diode (LED)
Subclass 560: With reflective surface (e.g., mirror)
Subclass 561: Including liquid crystal display (i.e., LCD)
Subclass 582: Specific material (e.g., type of light conducting material, material of pipe or rod)
Subclass 583: With filter device
Subclass 609: Reflector
Subclass 612: Light Emitting Diode (LED)
Subclass 613: Plural
Subclass 615: Light guide
Subclass 631: Circuit board

Class 349: Liquid Crystal Cells, Elements And Systems

Cells, elements, and systems which include molecules of a material having both liquid and crystalline properties. Included in this class are those which have a significant liquid crystal cell detail or liquid crystal response or properties, and in which the liquid crystal controls or changes the optical properties of electromagnetic radiation such as direction, phase, amplitude, frequency, or polarization state. This class also provides for nominal manufacturing methods for producing significant liquid crystal cell structure.

Subclass 199: Liquid crystal sensors (e.g., voltmeters, pressure sensors, temperature sensors)
Subclass 61: Particular illumination
Subclass 65: Edge lit type light guide behind liquid crystal

Class 385: Optical Waveguides

(1) An optical waveguiding element, which conveys light from one point to another through an optically transparent elongated structure by modal transmission, total internal reflection, or total reflectorization. (2) A combination of an optical waveguiding element with an additional broadly recited optical element which couples light or a combination. (3) A combination of an optical waveguiding element with structure which mechanically joins this waveguiding element with another or with a diverse optical element. (4) An optical modulator where the modulation of a light wave characteristic is performed exclusively within an optical waveguiding element. (5) Other miscellaneous devices formed of an optical waveguide (e.g., a waveguide sensing device) and supplemental devices which are limited to use with an optical waveguide (e.g., an external clamp or retainer).


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 205: Controlling light source intensity
Subclass 214R: Special photocell or electron tube circuits
Subclass 214A: Amplifier type
Subclass 216: Optical or pre-photocell system
Subclass 227.11: Light conductor
Subclass 226: Color (e.g., filter or spectroscope)

Class 330: Amplifiers

This is the generic class for amplifiers, included: Amplifiers having all types of active elements (or amplifying devices), amplifier systems having plural amplifier channels, cascade amplifiers, push-pull amplifiers and other amplifiers having plural amplifier devices. Also included are amplifiers with plural signal sources or plural loads. Amplifiers including the means coupling the signal source to the amplifier or coupling the amplifier to the load or between cascaded stages are also included. Amplifiers combined with tone control means. Amplifiers combined with amplitude (volume) control means whether by manual control, by control of an electrode D.C. bias. Amplifiers combined with power supply. Amplifiers combined with structural features of the amplifier or the amplifier circuit elements. Amplifiers having signal feedback means.

Subclass 308: Including atomic particle or radiant energy impinging on a semiconductor

Class 348: Television

Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.

Subclass E5.029: Provided with illuminating means (EPO)
Subclass E5.035: Circuitry for evaluating the brightness variations of the object (EPO)

Class 356: Optics: Measuring And Testing

Methods and apparatus (1) for analyzing light to measure or test its characteristics, such as intensity, color and polarization; (2) for determining the optical or nonoptical properties of materials or articles by noting, as by inspection, measurement, or test the effect produced by the materials or articles on light associated therewith; and (3) for measuring the dimensions of structures or the spatial relationships such as distances or angle bearings of spaced points by comparison of the respective properties (usually direction or spatial position) of the light from these points or by comparison of the properties of these lights with some scale or standard. The light analyzing includes or is for spectroscopy, interference, polarization, beam direction or pattern, focal position of a light source, shade or color, and photometers. The material or article properties determined are or involve crystal or gem examination, material strain analysis, blood analysis, optical pyrometers, egg candling, cutting blade sharpness, oil testing, document verification, flatness, lens or reflector testing, refraction testing, monitoring moving webs or fabrics, light transmission or absorption, light reflection, inspection for flaws or imperfections in materials, and thread counting. The dimensioning and spatial relationship determination includes triangulation by a light beam, contour plotting, range or height finders, motion stopping, velocity or velocity/height measuring, sighting where the optical element or reticle moves with the sighted object, particle size determination, particle light scattering, electrophoresis, angle measuring or axial alignment, mensuration or configuration comparison, alignment in a lateral direction, and fiducial instruments.

Subclass 402: BY SHADE OR COLOR
Subclass 405: Tristimulus examination
Subclass 411: With plural light detectors (e.g., photocells)

Class 372: Coherent Light Generators

An assembly of electrical, mechanical, and optical components produces an intense, coherent, directional beam of light by stimulating electronic, ionic, or molecular transitions to lower energy levels.

Subclass 38.02: For driving or controlling laser

Class 257: Active Solid-State Devices (E.G., Transistors, Solid-State Diodes)

This class provides for active solid-state electronic devices, that is, electronic devices or components that are made up primarily of solid materials, usually semiconductors, which operate by the movement of charge carriers - electrons or holes - which undergo energy level changes within the material and can modify an input voltage to achieve rectification, amplification, or switching action, and are not classified elsewhere.

Subclass 81: With specific housing or contact structure
Subclass 82: Discrete light emitting and light responsive devices
Subclass 89: Multi-color emission
Subclass 95: With contoured external surface (e.g., dome shape to facilitate light emission)
Subclass 96: Plural heterojunctions in same device
Subclass 97: More than two heterojunctions in same device
Subclass 98: With reflector, opaque mask, or optical element (e.g., lens, optical fiber, index of refraction matching layer, luminescent material layer, filter) integral with device or device enclosure or package
Subclass 99: With housing or contact structure
Subclass 100: Encapsulated
Subclass E33.005: Shape or structure (e.g., shape of epitaxial layer) (EPO)
Subclass E33.059: Encapsulation (EPO)
Subclass E33.072: Reflective means (EPO)
Subclass E25.02: Devices being arranged next to each other (EPO)
Subclass E25.032: Comprising optoelectronic devices, e.g., LED, photodiodes (EPO)

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 500: Matrix or array
Subclass 501: Light conversion
Subclass 506: Plural layers