Patent Portfolio for Sale:

LCD & Flat Panel Displays.    

Inventions include backlighting, color filters, polarization, structures, manufacturing etc.

A large patent portfolio for LCD and flat panel screens, the inventions include backlighting, color filters, polarization, structures, manufacturing etc.

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 104: Filter
Subclass 106: Color filter
Subclass 115: Cholesteric reflector
Subclass 117: Compensator or retarder (i.e., not using liquid crystal cell)
Subclass 119: Multiple compensators
Subclass 139: Electrode or bus detail (i.e., excluding supplemental capacitor and transistor electrodes)
Subclass 175: Within cholesteric phase
Subclass 176: Using reflection characteristic
Subclass 185: In cholesteric phase
Subclass 187: NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL
Subclass 194: Passive liquid crystal polarizer
Subclass 196: Beam dividing switch formed from liquid crystal cell
Subclass 197: Including passive liquid crystal switch portion
Subclass 61: Particular illumination
Subclass 73: Interconnection of plural cells in parallel (e.g., edge to edge)
Subclass 74: Interconnection of plural cells in series
Subclass 78: Cell cooperation providing multicolor display
Subclass 88: Polymer network liquid crystal
Subclass 96: Polarizer
Subclass 98: Circular

Class 252: Compositions

(A) Compositions of matter, having or not having structure, physical form or heterogeneous arrangement of components and for which there is no provision elsewhere. (B) Packages of such compositions, or other articles which include such compositions for which there is no provision elsewhere. (C) Processes of making, or peculiar to making, such compositions and for which there is no provision elsewhere. (D) Apparatus for use in or peculiar to such processes and for which there is no provision elsewhere.

Subclass 299.7: Cholesteric liquid crystal composition containing a sterol derivative
Subclass 585: Producing polarized light

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 341.1: Optical fiber
Subclass 495: For beam deflection or splitting
Subclass 497: Using plural elements
Subclass 498: Frequency filter or interference effects
Subclass 500: With particular material or mounting structure

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 E13.014: Having two 2D image pickup sensors representing the interocular distance (EPO)
Subclass E13.037: With spectral multiplexing, i.e., simultaneously displaying left and right images separated using glasses with different spectral characteristics, e.g., anaglyph method or Pullfrich method (EPO)
Subclass E13.038: With polarization multiplexing, i.e., simultaneously displaying left and right images separated using glasses with different polarizing characteristics (EPO)
Subclass E13.039: With spatial multiplexing, i.e., simultaneously displaying left and right images on different parts of the display screen and using glasses to optically recombine the stereoscopic image, e.g., with prisms or mirrors (EPO)
Subclass E13.04: With temporal multiplexing, i.e., alternatively displaying left and right images separated in time and using glasses to alternatively block the right and left eye (EPO)
Subclass E13.044: For displaying monoscopic and stereoscopic images or mixed monoscopic/stereoscopic images, e.g., monoscopic and stereoscopic image displaying modes or a stereoscopic image overlay window in a monoscopic image background (EPO)
Subclass E13.059: Synchronization or controlling aspects (EPO)
Subclass E9.024: Using solid-state color display devices (EPO)
Subclass E5.141: The modulator being an array of liquid crystal cells (EPO)
Subclass E5.143: Constructional details of television projection apparatus (EPO)
Subclass E5.145: Of head mounted projectors (EPO)

Class 106: Compositions: Coating Or Plastic

This class is the broad generic class for: (1) Coating, impregnating or plastic compositions, especially those which set or harden to retain a given shape. Most of the compositions herein found are those which are capable of undergoing a change from a fluent to a nonfluent condition, or from a solid noncoherent form to a solid coherent form. (2) Materials or ingredients, not in themselves coating, for use in such compositions and for which there is no provision elsewhere. (3) This class takes processes for preparing or making the compositions, materials, or ingredients classified herein, which processes are classified with the corresponding composition, material or ingredient. (4) This class does not include patents which are limited to apparatus only.

Subclass 31.27: Organic dye containing
Subclass 493: Organic pigment containing

Class 428: Stock Material Or Miscellaneous Articles

This is the residual class for: 1. Stock material in the form of a structurally defined web, sheet, rod, strand, fiber, filament, cell, flake, particle not provided elsewhere. 2. Stock material in the form of a web, sheet, mass or layer which consists of or contains a structurally defined constituent or element. 3. A nonstructural laminate defined merely in terms of the composition of one or more layers. 4. An article of manufacture or an intermediate-article not provided for elsewhere. 5. A process for applying an impregnating material to a naturally solid product such as a wood beam, a sheet of leather or a stone, or for applying a coating to a base, and which process includes no significant method step.

Subclass 363: Mica flake
Subclass 402: Particulate matter (e.g., sphere, flake, etc.)

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 504: Organic phosphor
Subclass 506: Plural layers

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 169.1: Diverse-type energizing or bias supplies to different electrodes

Class 362: Illumination

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

Subclass 511: Optical waveguide (e.g., fiber optic, edge-lit)

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).

Subclass 115: OPTICAL FIBER BUNDLE
Subclass 119: With lens or mirror
Subclass 123: OPTICAL FIBER WAVEGUIDE WITH CLADDING
Subclass 146: NONCYCLINDRICAL OR NONPLANAR SHAPED WAVEGUIDE
Subclass 147: MISCELLANEOUS

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 79: INCOHERENT LIGHT EMITTER STRUCTURE
Subclass 88: Plural light emitting devices (e.g., matrix, 7-segment array)