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Classification Resources
 
Class   349LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS
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[List of Pre Grant Publications for class 349 subclass 1][List of Patents for class 349 subclass 1]1 LIQUID CRYSTAL SYSTEM
[List of Pre Grant Publications for class 349 subclass 19][List of Patents for class 349 subclass 19]19 PARTICULAR EXCITATION OF LIQUID CRYSTAL
[List of Pre Grant Publications for class 349 subclass 20][List of Patents for class 349 subclass 20]20 Subclass 20 indent level is 1 Thermal excitation
 [List of Pre Grant Publications for class 349 subclass 23][List of Patents for class 349 subclass 23]23 Subclass 23 indent level is 1 Magnetic or pressure excitation
[List of Pre Grant Publications for class 349 subclass 24][List of Patents for class 349 subclass 24]24 Subclass 24 indent level is 1 Optical excitation
 [List of Pre Grant Publications for class 349 subclass 31][List of Patents for class 349 subclass 31]31 Subclass 31 indent level is 1 Electron beam excitation
 [List of Pre Grant Publications for class 349 subclass 32][List of Patents for class 349 subclass 32]32 Subclass 32 indent level is 1 Plasma excitation
[List of Pre Grant Publications for class 349 subclass 33][List of Patents for class 349 subclass 33]33 Subclass 33 indent level is 1 Electrical excitation of liquid crystal (i.e., particular voltage pulses, AC vs. DC, threshold voltages, etc.)
[List of Pre Grant Publications for class 349 subclass 56][List of Patents for class 349 subclass 56]56 PARTICULAR STRUCTURE
 [List of Pre Grant Publications for class 349 subclass 57][List of Patents for class 349 subclass 57]57 Subclass 57 indent level is 1 Lens or prism separate from projection system (i.e., it is not integral part of illumination system)
[List of Pre Grant Publications for class 349 subclass 58][List of Patents for class 349 subclass 58]58 Subclass 58 indent level is 1 Holder, support, frame, or housing
[List of Pre Grant Publications for class 349 subclass 61][List of Patents for class 349 subclass 61]61 Subclass 61 indent level is 1 Particular illumination
 [List of Pre Grant Publications for class 349 subclass 72][List of Patents for class 349 subclass 72]72 Subclass 72 indent level is 1 Detector of liquid crystal temperature
 [List of Pre Grant Publications for class 349 subclass 73][List of Patents for class 349 subclass 73]73 Subclass 73 indent level is 1 Interconnection of plural cells in parallel (e.g., edge to edge)
[List of Pre Grant Publications for class 349 subclass 74][List of Patents for class 349 subclass 74]74 Subclass 74 indent level is 1 Interconnection of plural cells in series
[List of Pre Grant Publications for class 349 subclass 84][List of Patents for class 349 subclass 84]84 Subclass 84 indent level is 1 Having significant detail of cell structure only
 [List of Pre Grant Publications for class 349 subclass 85][List of Patents for class 349 subclass 85]85 Subclass 85 indent level is 2 Producing a greyscale effect
[List of Pre Grant Publications for class 349 subclass 86][List of Patents for class 349 subclass 86]86 Subclass 86 indent level is 2 Microencapsulated or polymer dispersed liquid crystal
 [List of Pre Grant Publications for class 349 subclass 95][List of Patents for class 349 subclass 95]95 Subclass 95 indent level is 2 Microlenses
[List of Pre Grant Publications for class 349 subclass 96][List of Patents for class 349 subclass 96]96 Subclass 96 indent level is 2 Polarizer
[List of Pre Grant Publications for class 349 subclass 104][List of Patents for class 349 subclass 104]104 Subclass 104 indent level is 2 Filter
 [List of Pre Grant Publications for class 349 subclass 112][List of Patents for class 349 subclass 112]112 Subclass 112 indent level is 2 Diffuser (on viewer side of liquid crystal)
[List of Pre Grant Publications for class 349 subclass 113][List of Patents for class 349 subclass 113]113 Subclass 113 indent level is 2 Reflector
 [List of Pre Grant Publications for class 349 subclass 116][List of Patents for class 349 subclass 116]116 Subclass 116 indent level is 2 Photoconductive element (i.e., not used for exciting)
[List of Pre Grant Publications for class 349 subclass 117][List of Patents for class 349 subclass 117]117 Subclass 117 indent level is 2 Compensator or retarder (i.e., not using liquid crystal cell)
[List of Pre Grant Publications for class 349 subclass 122][List of Patents for class 349 subclass 122]122 Subclass 122 indent level is 2 Particular nonoptical film or layer (e.g., adhesive layer, barrier layer)
[List of Pre Grant Publications for class 349 subclass 139][List of Patents for class 349 subclass 139]139 Subclass 139 indent level is 2 Electrode or bus detail (i.e., excluding supplemental capacitor and transistor electrodes)
[List of Pre Grant Publications for class 349 subclass 153][List of Patents for class 349 subclass 153]153 Subclass 153 indent level is 2 Liquid crystal seal
[List of Pre Grant Publications for class 349 subclass 155][List of Patents for class 349 subclass 155]155 Subclass 155 indent level is 2 Spacer
[List of Pre Grant Publications for class 349 subclass 158][List of Patents for class 349 subclass 158]158 Subclass 158 indent level is 2 Substrate
 [List of Pre Grant Publications for class 349 subclass 161][List of Patents for class 349 subclass 161]161 Subclass 161 indent level is 2 Heating or cooling element other than for exciting
 [List of Pre Grant Publications for class 349 subclass 162][List of Patents for class 349 subclass 162]162 Subclass 162 indent level is 2 Dual function layer or element
[List of Pre Grant Publications for class 349 subclass 163][List of Patents for class 349 subclass 163]163 Subclass 163 indent level is 2 Nonchiral additive in the liquid crystal material
[List of Pre Grant Publications for class 349 subclass 167][List of Patents for class 349 subclass 167]167 WITH SPECIFIED NONCHEMICAL CHARACTERISTIC OF LIQUID CRYSTAL MATERIAL
[List of Pre Grant Publications for class 349 subclass 182][List of Patents for class 349 subclass 182]182 CELL CONTAINING LIQUID CRYSTAL OF SPECIFIC COMPOSITION
[List of Pre Grant Publications for class 349 subclass 187][List of Patents for class 349 subclass 187]187 NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL
[List of Pre Grant Publications for class 349 subclass 193][List of Patents for class 349 subclass 193]193 LIQUID CRYSTAL OPTICAL ELEMENT
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived.
     UTILIZING A LIQUID CRYSTAL MATERIAL (359/36)
  FOR100          Subclass FOR100 indent level is 1 With particular illumination (359/48)
  FOR103          Subclass FOR103 indent level is 1 Microencapsulated liquid crystal (359/51)
      FOR105          Subclass FOR105 indent level is 1 Plural contiguous cells (359/53)
  FOR106          Subclass FOR106 indent level is 1 Having electrodes arranged into rows and columns (359/54)
  FOR113          Subclass FOR113 indent level is 1 Having particular nonelectrical detail of cell structure enclosing or adjacent liquid crystal material (359/62)
  FOR126          Subclass FOR126 indent level is 1 With specified electrode excitation characteristic of liquid crystal material (359/84)
      FOR128          Subclass FOR128 indent level is 1 With detector of liquid crystal temperature (359/86)
  FOR129          Subclass FOR129 indent level is 1 Electrode detail (359/87)
      FOR131          Subclass FOR131 indent level is 1 Birefringers effect (359/93)
      FOR132          Subclass FOR132 indent level is 1 Variable index of refraction (359/94)
      FOR133          Subclass FOR133 indent level is 1 Variable diffraction (359/95)
  FOR134          Subclass FOR134 indent level is 1 Variable absorption of light due to an additive in the liquid crystal material (359/96)
      FOR135          Subclass FOR135 indent level is 2 Flurescent additive (359/97)
      FOR136          Subclass FOR136 indent level is 2 Pleochroic dye (359/98)
  FOR137          Subclass FOR137 indent level is 1 With specified nonchemical characteristic of liquid crystal material (359/99)
      FOR138          Subclass FOR138 indent level is 2 Within smectic phase (359/100)
      FOR139          Subclass FOR139 indent level is 2 Within cholestric phase (359/101)
      FOR140          Subclass FOR140 indent level is 2 Within nematic phase (359/102)
  FOR141          Subclass FOR141 indent level is 1 Cell containing liquid crystal of specified composition (359/103)
      FOR142          Subclass FOR142 indent level is 2 In smectic phase (359/104)
      FOR143          Subclass FOR143 indent level is 2 In cholesteric phase (359/105)
      FOR144          Subclass FOR144 indent level is 2 In nematic phase (359/106)