PTO Manual of Classification for US patents

PTO Manual of Classification for US patents

What follows are the subclasses from one class of the Manual of Classification for US patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retrieve patent titles by entering the class/subclass in the box below.


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363-131 121-55A 14-.5
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Class Number: 174
 Class Title: ELECTRICITY: CONDUCTORS AND INSULATORS

Subclass  Subclass
Number    Title

  1       MISCELLANEOUS
  2       LIGHTNING PROTECTION
  3       .Rods
  4 R     AIR TERMINALS
  4 C     .Coated and radioactive
  5 R     ELECTRIC SHOCK HAZARD PROTECTIVE DEVICES
  5 SB    .Shock protection, body insulation
  5 SG    .Shock protection, grounding devices
  6       EARTH GROUNDS
  7       .Driving type
  8       WITH FLUIDS OR VACUUM
  9 R     .Current conductive fluid and/or vacuum
  9 F     ..Conductive fluid
  10      .With cable or conduit preinstallation devices
  11 R    .With fluid-condition responsive and/or indicating means
  11 BH   ..Bushings
  12 R    .With expansion and contraction means
  13      ..Built into conduit or cable
  12 BH   ..Expansion bushings
  14 R    .With fluid maintenance or conditioning means
  14 BH   ..Bushings
  15.1    .With cooling or fluid feeding, circulating or
            distributing
  15.2    ..By heat pipe
  15.3    ..For bushing or pothead
  15.4    ..Superconductive type
  15.5    ...For cable, conductor or joint
  15.6    ..For cable, conductor or joint
  15.7    ..For welding or furnace cable
  16.1    ..By ventilation or gas circulation
  16.2    ...Of bus bars or bus ducts
  16.3    ...With heat sink
  17 R    .Boxes and housings
  17.05   ..Hermetic sealed envelope type (e.g., with exhaust stem)
  17.06   ...Liquid seal
  17.07   ...Combined lead-in and exhaust tube
  17.08   ...With electric connector
  18      ..With bushing, terminal or lead-in
  17 LF   ..Liquid filled
  17 GF   ..Gas filled
  17 SF   ..Solid filled
  17 VA   ..Venting, absorption, expansion
  17 CT   ..Closures, terminals, gaskets
  19      .Conduit or cable end structure
  20      ..With fluid stops
  21 R    .Conduit or cable joints
  22 R    ..With fluid stops
  22 C    ...Concentric
  21 JS   ..Joints: separable
  21 JR   ..Joints: rotatable
  21 JC   ..Joints: rotatable, coaxial
  21 C    ..Joints: coaxiall
  21 CA   ..Joints: coaxial angle expansion
  23 R    .With fluid stops
  23 C    ..Compositions
  24      .Conduits, cables and conductors
  25 R    ..Impregnated insulation type
  26 R    ...Multiple conductor
  26 G    ....Gas filled
  25 C    ...Impregnating compositions
  25 G    ...Gas filled
  25 P    ...Processes
  27      ..Parallel or twisted conductors
  28      ..Coaxial or concentric type
  29      ...With spiral spacer
  30      .Insulators
  31 R    ..Axial passage and/or through wall or plate
  31.5    ...Liquid sealed joint
  31 S    ...Spark plugs
  32      ANTI-INDUCTIVE STRUCTURES
  33      .Conductor transposition
  34      ..Conduit or cable structure
  35 R    .Shielded or screened
  36      ..Conductor only
  35 C    ..Connectors and joints
  35 SM   ..Spark plugs, manifolds
  35 GC   ..Gaskets, covers
  35 CE   ..Coils, anti-eddy-current
  35 MS   ..Materials, stock and screen rooms
  35 TS   ..Radio tube shields
  37      UNDERGROUND
  38      .Distributing and/or combined with overhead
  39      .Street, sidewalk, gutter or curb structure
  40 R    OVERHEAD
  41      .With messenger cable
  42      .With conductor vibration damping means
  43      .Distributing and/or plural point support
  44      .With connector or wire fanning arrangements
  45 R    .Towers, poles or posts
  45 TD   ..Tension devices
  40 CC   .Ground clamps and cable clips
  40 TD   .Tension devices
  46      HANDLES
  47      COMBINED FLUID CONDUIT AND ELECTRICAL CONDUCTOR
  48      WALL MOUNTED CONDUITS AND/OR HOUSINGS
  49      .Plural outlet and/or conduit
  50      BOXES AND HOUSINGS
  50.5    .Hermetic sealed envelope type
  50.51   ..With covering or casing for envelope
  50.52   ..With electrical connector
  50.53   ...Envelope portion forms connector
  50.54   ..With mounting means for a device within envelope
  50.55   ..Hollow lead surrounding another lead (e.g., concentric
             type)
  50.56   ..Lead-in insulated from metal wall
  50.57   ..Stem or sealing disk attached to envelope neck
  50.58   ...By fused-type seal
  50.59   ..With shield for lead-in seal or between the lead-in
             conductors
  50.6    ..Plural lead-inn
  50.61   ..With bonded seal for conductive member (e.g., glass to
             metal)
  50.62   ...With cement or plastic
  50.63   ...Metal disk or ring-type seal
  50.64   ...Foil or flat lead-in
  51      .With grounding means
  52.1    .With electric device or mounting means therefor
  52.2    ..Potted or encapsulated
  52.3    ..Sealed
  52.4    ...Flat housing for electronic device (e.g., flat pack,
              dual-in-line package)
  52.5    ...Header, mounting stud, or can-type housing for
              semiconductor or crystal
  52.6    ...Pellet type housing
  53      ..Plug receptacle or wall switch type
  54      ...With fixture coupling or mounting means
  55      ...Unitary with face plate
  56      ....External
  57      ...Adjustable
  58      ...With box or housing mounting means
  59      ..With connectors
  60      ...Cable or conduit terminal casings
  61      ..Fixtures coupling or mounting means
  62      ...Stud or nipple
  63      ....With box supporting means
  64      ....With conduit or cable coupling means
  65 R    .With conduit or cable opening, coupling means or hole
            closures
  65 SS   ..Sealed stuffing-gland type
  65 G    ..Grommet type
  66      COVERS OR FACE PLATES
  67      .With closure for face plate opening
  68.1    CONDUITS, CABLES OR CONDUCTORS
  68.2    .Bus bars or bus ducts (Residual)
  68.3    .Single duct conduits
  250     .Preformed panel circuit arrangement (e.g., printed circuit)
  251     ..With encapsulated wire
  252     ..With cooling means
  253     ..Micropanel
  254     ..Convertible shape (e.g., flexible) or circuit (e.g.,
             breadboard)
  255     ..With particular substrate or support structure
  256     ..With particular material
  257     ...Conducting (e.g., ink)
  258     ...Insulating
  259     ...Adhesive/bonding
  260     ..With electrical device
  261     ..With particular conductive connection (e.g., crossover)
  262     ...Feedthrough
  263     ....With solder
  264     ....Voidless (e.g., solid)
  265     .....Preform in hole
  266     ....Hollow (e.g., plated cylindrical hole)
  267     ...Termination post
  268     ..With single conductive plane (e.g., tape, cable)
  69      .Extensible
  70 R    .Combined
  71 R    ..Branchedd
  72 R    ...Multi-duct conduit and/or plural branch
  72 A    ....Wire harness
  72 B    ....Bus bars
  72 C    ....Casing, moldings
  72 TR   ....Ribbon type
  71 B    ...Bus bars
  71 C    ...Coaxial
  73.1    ..With joint or end structure conductive stress
             distributing means
  74 R    ..With end structure
  75 R    ...With joint
  75 B    ....Bootleg
  75 D    ....With detachable joint (e.g., potheads)
  75 F    ....Flexible spring type
  75 C    ....Coaxial
  76      ...Plastic filled
  77 R    ...Sealing
  77 S    ....Spark plugs
  78      ...With grounding means
  79      ...With supporting means
  80      ...With insulator skirts
  81      ...Elbow or hood outlet type
  82      ...End cap outlet type
  83      ...Lining thimble
  74 A    ...Insulating cap or sleeve
  84 R    ..With joints
  85      ...Axially insulated joint sleeve sections
  86      ...Angularly movable or adjustable
  87      ...Angular
  88 R    ...Plural conductor and/or duct
  88 B    ....Bus bars
  88 C    ....Coaxial
  88 S    ....Separable
  89      ...Radially spread or flanged sheath or conduit
  90      ...Stranded conductor
  91      ...Divided joint sleeves
  92      ....Longitudinally
  93      ...Sleeve and end cap-type casing
  94 R    ...Bare-conductor
  94 S    ....Separable
  84 C    ...Crimped
  84 S    ...Separable
  70 S    ..Submarine repeater housings
  70 B    ..Bus bars
  70 C    ..Conduits or strips
  70 A    ..Aerial cable
  95      .Plural duct
  96      ..Embedded conduit-ducts or conductors
  97      ..Grooves or channels
  98      .With embedded conduit-duct or conductor
  99 R    .With interior conductor or cable supports
  100     ..Vertical conductor or cable
  99 B    ..Bus bars
  99 E    ..Expansion
  101     .Removable wall
  101.5   .Buoyant
  102 R   .Conductive armor or sheath
  103     ..Plural individually sheathed or armored conductorss
  104     ...Embedded in shield
  105 R   ..Plural, insulated
  105 SC  ...Semiconducting
  105 B   ...Segmental
  106 R   ..Plural, conductively contacting or composite
  106 SC  ...Semiconducting
  106 D   ...Corrugated
  107     ..Protected by nonconductive layer
  108     ..Spirally applied
  109     ...Overlapping or interlocking
  102 A   ..Alloys
  102 SC  ..Semiconducting
  102 C   ..Sheath coated
  102 SP  ..Strip, type, perforated, slotted
  102 P   ..Powdered insulation
  102 D   ..Corrugated
  102 E   ..Rope
  110 R   .Insulated
  111     ..With beads or disc
  112     ..With identifying means
  113 R   ..Multiple conductor
  114 R   ...Split conductor
  114 S   ....Segmental reentrant
  115     ...Dissimilar or auxiliary conducting elements
  116     ...With filler insulation
  117 R   ...Assemblies of noncircular section
  117 F   ....Flat or ribbon type
  117 FF  ....Conductor itself is flat
  117 M   ....Mesh
  117 AS  ....Air-spaced
  117 A   ....Adhesive
  113 A   ...Radially compressed
  113 AS  ...Air-spaced
  113 C   ...Insulating core
  118     ..With powdered or granular material
  119 R   ..Composite or noncircular strand section
  119 C   ...Coated, compositions
  120 R   ..Plural or impregnated layers
  121 R   ...Fibrous or fabric with plastic or coating materials
  121 A   ....Flame, weather or mold proof
  121 B   ....Cellulose
  121 AR  ....Rubber
  121 SR  ....Synthetic resin
  122 R   ...Fibrous or fabric
  122 G   ....Glass
  122 C   ....Coated
  120 C   ...Coated or impregnated
  120 FP  ...Fluid-type cable paper
  120 SC  ...Semiconducting
  120 AR  ...Rubber
  120 SR  ...Synthetic resin
  124 R   ..Fibrous or fabric
  124 G   ...Mineral-glass
  124 GC  ...Mineral-glass, coated
  110 A   ..Oxide
  110 P   ..Cellulose
  110 AR  ..Rubber
  110 SR  ..Synthetic resinn
  110 SY  ..Styrene
  110 B   ..Isobutylent
  110 N   ..Polyamide (Nylon)
  110 PM  ..Polyethylene (including "Mylar")
  110 D   ..Dacron
  110 V   ..Vinyl
  110 FC  ..Fluorocarbons (teflon, Kel-f, FEP-Teflon)
  110 S   ..Silicones
  110 F   ..Foam
  110 E   ..Epoxy
  125.1   .Superconductors
  126.1   .Conductor structure (nonsuperconductive)
  126.2   ..Composite
  126.3   ..Corrugated or slotted
  126.4   ..Metal coated on insulation
  127     ..Corona prevention
  128.1   ..Plural strand
  128.2   ...Bundle conductors
  129 R   ...Assemblies of noncircular section
  129 B   ....Bus bars
  129 S   ....Segmental, reentrant
  130     ...Annular
  131 R   ....With wall support
  131 A   .....Insulating core
  131 B   .....Synthetic, coated
  133 R   ..Noncircular strand section
  133 B   ...Bus bars
  135     .Accessories
  136     ..Anti-abrasion devices
  137 R   INSULATORS
  138 R   .Special application
  138 A   ..Antennas
  138 C   ..Compositions
  138 S   ..Spark plugs
  138 B   ..Pull chains
  138 D   ..Studs, rods, and joints
  138 E   ..Slot liners and spacers
  138 F   ..Terminal covers
  138 G   ..Component mounting pads, spacers and holders
  138 H   ..Neon tube type
  138 J   ..Resistor or heater type
  139     .Combined
  140 R   ..With conductive arcing or stress distributing means
  141 R   ...Strings or stacks
  141 C   ....Coated
  142     ...Bushing type
  143     ....Condenser type
  144     ...Arcing or grading devices
  140 C   ...Coated
  140 H   ...Hood type
  140 S   ...Strain type
  140 CR  ...Corona ring
  145     ..With connector
  146     .Mid-line spacers
  147     ..Cross-over
  148     .Multiple insulator assemblies
  149 R   ..Multiple conductor
  149 B   ...Bus barss
  150     ..Strings and stacks
  151     .Through wall or plate
  152 R   ..Bushing type
  153 R   ...Opposed wall engaging means
  153 A   ....Antennas
  153 G   ....Grommets
  152 A   ...Antennas
  152 E   ...Electric space discharge device
  152 S   ...Spark plugs
  152 G   ...Grommets or tubes
  152 GM  ...Glass-to-metal seal
  154     .Insulator and conductor embracing holder
  155     ..Divided insulator
  156     .Divided insulator
  157     ..Aligned through aperture
  158 R   .With insulator-supporting or attaching means
  159     ..Insulated nail or staple type
  160     ..Strand engaging suspension means
  161 R   ..Adjustably or movably mounted
  161 F   ...Fence post insulators
  162     ..Double arm
  163 R   ..Support and/or insulator embracing or clamping
  163 F   ...Fence post insulators
  164     ..Support penetrating
  165     ...Penetrating element socketed in insulator
  166 R   ...Through aperture, penetrating element clamped
  166 S   ....Stand-off insulators
  158 F   ..Fence post insulators
  167     .With conductor receiving aperture or bushing type
  168     .With conductor holding means
  169     ..Fitting or terminal type
  170     ...Hooks
  171     ...Special conductor form
  172     ..Insulator embracing
  173     ...Tie wires
  174     ..Insulator structure
  175     ...Self-retaining
  176     .With terminal elements
  177     ..Plural
  178     ...Multi-part, sectional or composite insulator
  179     ....Protected rod type
  180     ....Pin and opposed overlapping terminal
  181     ...With insulated reinforcing or interlocking element
  182     ...Cap and pin
  183     ...Overlapping
  184     ....Interlinking
  185     ....Pin and opposed terminal
  186     ...Caps
  187     ..Ventilating
  188     ..Cap type
  189     ...Plastic material adhered
  190     ...Divided cap
  191     ...Clamps or clasps
  192     ...Rings or wedges
  193     ...Screw or bayonet
  194     ..Pin type
  195     ...Multi-part insulators
  196     ...Plastic material adheredd
  197     ...Clamps or clasps
  198     ...Rings or wedges
  199     ...Expanded
  200     ...With thimble in socket
  201     ...Through pin
  202     ...Screw or bayonet type
  203     ....Strand thread
  204     ....Sheet material thread
  205     ....Soft yielding material pin
  206     ....Sockets
  207     ..Link or clevis
  208     .Link type
  209     .Sectional, multi-part, composite, or coated
  210     ..Pin socket type
  211     .With moisture or dirt removing or shedding
  212     .Surface configuration
  137 A   .Coated
  137 B   .Compositions
  *       ******************************
  *       DIGESTS
  *       ******************************
  DIG 1   Anti-tracking
  DIG 2   Ballasts
  DIG 7   Sodium conductors, connectors, etc.
  DIG 8   Shrinkable tubes, etc.
  DIG 9   Pull-out cabinet or drawer with retractable cable
  DIG 10  Bushings with current transformers
  DIG 11  Zipper tubes
  DIG 12  Helical preforms