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Patent Summary

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

Class 568: Organic Compounds -- Part Of The Class 532 Series

The classes of the 532 series embrace monomeric organic carbon compounds and polymeric organic carbon compounds that are not solid synthetic resins, natural rubbers, or hydrocarbons.

Subclass 937: Halogen bonded directly to benzene ring
Subclass 939: Nitro bonded directly to benzene ring
Subclass 940: Methyl bonded directly to benzene ring (e.g., nitroxylene, etc.)

Class 564: Organic Compounds -- Part Of The Class 532 Series

The classes of the 532 series embrace monomeric organic carbon compounds and polymeric organic carbon compounds that are not solid synthetic resins, natural rubbers, or hydrocarbons.

Subclass 442: Halogen, bonded directly to carbon, containing

Class 548: Organic Compounds -- Part Of The Class 532 Series

The classes of the 532 series embrace monomeric organic carbon compounds and polymeric organic carbon compounds that are not solid synthetic resins, natural rubbers, or hydrocarbons.

Subclass 418: Pentacyclo ring system having the five-membered hetero ring as one of the cyclos

Class 528: Synthetic Resins Or Natural Rubbers -- Part Of The Class 520 Series

Part of the Class 520 Series - some general types of subject matter include: Solid synthetic resins, per se, regardless of utility; processes of preparing a synthetic resin involving a chemical reaction; reactable compositions which form a product; processes of purifying a solid synthetic resin or composition containing a synthetic resin by a chemical or physical process; process of reclaiming or recovering a solid synthetic resin; processes of treating a synthetic resin or specified intermediate condensation product with a reactant, or product thereof; blends of solid synthetic resins, processes of preparing or treating such blends; chemically reacted solid synthetic resins or processes of preparing; potentially reactable compositions which contain a solid synthetic resin or SICP and products of such a reaction, or processes of preparing; room vulcanizable potentially reactive compositions which merely require moisture and which are usually activated by heat and/or pressure to form a product; compositions of a nonreactant material and a solid synthetic resin or SICP; compositions containing a structurally defined material which is dispersed in a matrix which is not identified by overall dimension or some structure or processes of preparing; single-layered products containing a solid synthetic resin or composition thereof reciting no structure or dimension, or a fiber, filament, etc., which is no more than the material from which it is made, nonstructured single-layered web or sheet is encompassed; particles or a powder, per se, of a solid synthetic resin or composition thereof for which particles or powder no dimensions are recited; reactable compositions which form a product proper for this class and contain a photoinitiator or photosensitizer which are activated by wave energy or processes of preparing.

Subclass 125: From ketone-containing phenolic reactant or with ketone-containing reactant
Subclass 128: With nonphenolic or nonketone reactant
Subclass 146: Nitrogen-containing material contains a nitrogen atom directly bonded to a carbon atom
Subclass 170: Imide-containing reactant
Subclass 172: Nitrogen-containing compound is a reactant other than wherein nitrogen is solely present as a carboxylic acid derivative
Subclass 173: Carboxylic acid or derivative is a reactant
Subclass 176: With polycarboxylic acid or derivative as reactant
Subclass 183: Nitrogen reactant contains at least one amino-nitrogen atom
Subclass 185: Phenolic reactant contains at least two aryl rings and two diverse phenolic to oxygen bonds
Subclass 188: Reactant contains three or more carboxylic acid groups or is derivative thereof
Subclass 229: Nitrogen-containing reactant contains an amine group
Subclass 337: Phosphorus- or sulfur-containing reactant
Subclass 350: From carboxylic acid having three or more carboxylic acid groups or derivatives thereof, and an organic amine, or from an organic amine salt of a tri-or higher carboxylic acid
Subclass 353: Carboxylic acid contains at least four carboxylic acid groups or is a derivative of a carboxylic acid containing at least four carboxylic groups

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 115: Cholesteric reflector
Subclass 117: Compensator or retarder (i.e., not using liquid crystal cell)
Subclass 123: Alignment layer
Subclass 124: Formed by particular technique (e.g., Langmuir Blodgett, stretching, etc.)
Subclass 125: Having particular deposited structure (e.g., angled, plural layered) produced by vapor deposition
Subclass 126: Having structure produced by rubbing under particular rubbing conditions (e.g., particular direction, rubbing force, by using named rubbing material or roller, etc.)
Subclass 127: Formed of a liquid crystal material
Subclass 128: With different alignments on opposite substrates
Subclass 129: With plural alignments on the same substrate
Subclass 132: For parallel alignment
Subclass 133: With chiral smectic liquid crystal (includes ferroelectric liquid crystal)
Subclass 134: With particular pretilt angle from the alignment layer
Subclass 135: With particular polymer composition of the alignment layer (e.g., fluorine- containing aliphatic polyamide)
Subclass 156: Formed as walls (e.g., between pixels) or integral with substrate
Subclass 168: Utilizing change between diverse phases (e.g., cholesteric to nematic)
Subclass 172: Within chiral smectic phase (includes ferroelectric)
Subclass 174: Antiferroelectric
Subclass 175: Within cholesteric phase
Subclass 188: Changing liquid crystal phase
Subclass 194: Passive liquid crystal polarizer
Subclass 201: Liquid crystal diffraction element
Subclass 86: Microencapsulated or polymer dispersed liquid crystal
Subclass 88: Polymer network liquid crystal
Subclass 89: With particular encapsulating medium

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 1.26: Polyimide
Subclass 1.27: Polyimidfluoride
Subclass 1.3: With viewing layer of specified composition
Subclass 473.5: Of polyimide

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 462: STEREOSCOPIC
Subclass 463: Having record with lenticular surface
Subclass 464: With right and left channel discriminator (e.g., polarized or colored light)

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 299.4: Containing nonchiral aligning agents

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 51: Stereoscopic display device
Subclass 55: Separation by time division
Subclass 88: Web, sheet or filament
Subclass E5.141: The modulator being an array of liquid crystal cells (EPO)

Class 427: Coating Processes

This is the generic class for: A. applying or obtaining a coating on a surface. The coating may be hard or soft, permanent or transitory, supplied solely by extraneous materials or supplied wholly or in part by the base material. B. impregnating a base by causing a coating material to extend or penetrate into the base material, or into the interstices of a porous, cellular or foraminous material. C. taking preparatory treatments of the base material, subsequent treatments of the coated base material and other ancillary noncoating operations claimed, per se, processes limited to etching for making a base more compatible with, or adherent to, the coating wherein the base is the substrate (work) onto which a coating is applied are included.

Subclass 510: Nonuniform or patterned coating (e.g., mask, printing, textured, etc.)
Subclass 517: Coating includes specified rate affecting material
Subclass 553: Low energy electromagnetic radiation (e.g., microwave, radio wave, IR, UV, visible, actinic, laser, etc.)

Class 380: Cryptography

Equipment and processes which (a) conceal or obscure intelligible information by transforming such information so as to make the information unintelligible to a casual or unauthorized recipient, or (b) extract intelligible information from such a concealed representation, including breaking of unknown codes and messages.

Subclass 41: Having quantizing and subsequent normalizing of signal (e.g., reentry telephone circuitry)

Class 331: Oscillators

This is the generic class for electrical oscillators.


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 492.3: Ion or electron beam irradiation

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 E51.02: Encapsulation (EPO)
Subclass E51.03: Polyethylene dioxythiophene and derivative (EPO)