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[Search a list of Patent Appplications for class 307]  Class   307ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS
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[List of Patents for class 307 subclass 1]  1           SUPERIMPOSED UNLIKE CURRENTS
[List of Patents for class 307 subclass 2]  2           Subclass 2 indent level is 1 AC and DC sources
[List of Patents for class 307 subclass 3]  3           Subclass 3 indent level is 1 Different frequencies or phase
[List of Patents for class 307 subclass 4]  4           Subclass 4 indent level is 1 Different voltages
[List of Patents for class 307 subclass 5]  5           Subclass 5 indent level is 2 Series-connected
[List of Patents for class 307 subclass 6]  6           Subclass 6 indent level is 3 Plural converters
[List of Patents for class 307 subclass 7]  7           Subclass 7 indent level is 4 Induction transformer
[List of Patents for class 307 subclass 8]  8           Subclass 8 indent level is 3 Plural generators
[List of Patents for class 307 subclass 9.1]  9.1           VEHICLE MOUNTED SYSTEMS
[List of Patents for class 307 subclass 10.1]  10.1           Subclass 10.1 indent level is 1 Automobile
[List of Patents for class 307 subclass 10.2]  10.2           Subclass 10.2 indent level is 2 Antitheft
[List of Patents for class 307 subclass 10.3]  10.3           Subclass 10.3 indent level is 3 Ignition or starting circuit lock
[List of Patents for class 307 subclass 10.4]  10.4           Subclass 10.4 indent level is 4 Manual code input (e.g., push button)
[List of Patents for class 307 subclass 10.5]  10.5           Subclass 10.5 indent level is 4 Coded record input (e.g., IC card)
[List of Patents for class 307 subclass 10.6]  10.6           Subclass 10.6 indent level is 2 Ignition or starter circuits
[List of Patents for class 307 subclass 10.7]  10.7           Subclass 10.7 indent level is 2 Battery protection
[List of Patents for class 307 subclass 10.8]  10.8           Subclass 10.8 indent level is 2 Lighting circuits
[List of Patents for class 307 subclass 11]  11           PLURAL LOAD CIRCUIT SYSTEMS
[List of Patents for class 307 subclass 12]  12           Subclass 12 indent level is 1 Common conductor or return type
[List of Patents for class 307 subclass 13]  13           Subclass 13 indent level is 2 Polyphase
[List of Patents for class 307 subclass 14]  14           Subclass 14 indent level is 3 Phase balancing
[List of Patents for class 307 subclass 15]  15           Subclass 15 indent level is 2 Voltage divider type
[List of Patents for class 307 subclass 16]  16           Subclass 16 indent level is 2 Plural output generators
[List of Patents for class 307 subclass 17]  17           Subclass 17 indent level is 1 Transformer connections
[List of Patents for class 307 subclass 18]  18           Subclass 18 indent level is 1 Plural sources of supply
[List of Patents for class 307 subclass 19]  19           Subclass 19 indent level is 2 Interconnected for energy transfer
[List of Patents for class 307 subclass 20]  20           Subclass 20 indent level is 3 With control of magnitude of energy transfer
[List of Patents for class 307 subclass 21]  21           Subclass 21 indent level is 3 Diverse sources
[List of Patents for class 307 subclass 22]  22           Subclass 22 indent level is 4 AC and DC
[List of Patents for class 307 subclass 23]  23           Subclass 23 indent level is 2 Substitute or alternate source
[List of Patents for class 307 subclass 24]  24           Subclass 24 indent level is 2 With control of magnitude of current or power
[List of Patents for class 307 subclass 25]  25           Subclass 25 indent level is 2 Diverse sources
[List of Patents for class 307 subclass 26]  26           Subclass 26 indent level is 3 AC and DC
[List of Patents for class 307 subclass 27]  27           Subclass 27 indent level is 3 Different frequencies
[List of Patents for class 307 subclass 28]  28           Subclass 28 indent level is 3 Different voltages
[List of Patents for class 307 subclass 29]  29           Subclass 29 indent level is 2 Selectively connected loads and/or sources
[List of Patents for class 307 subclass 30]  30           Subclass 30 indent level is 1 Anticoupling of load circuits through same source
[List of Patents for class 307 subclass 31]  31           Subclass 31 indent level is 1 Control of current or power
[List of Patents for class 307 subclass 32]  32           Subclass 32 indent level is 2 Load current proportioning or dividing
[List of Patents for class 307 subclass 33]  33           Subclass 33 indent level is 2 Constant magnitude control
[List of Patents for class 307 subclass 34]  34           Subclass 34 indent level is 3 By control of one or more load circuits
[List of Patents for class 307 subclass 35]  35           Subclass 35 indent level is 2 Limit control
[List of Patents for class 307 subclass 36]  36           Subclass 36 indent level is 1 Serially connected load circuits
[List of Patents for class 307 subclass 37]  37           Subclass 37 indent level is 2 Selective series-parallel connections
[List of Patents for class 307 subclass 38]  38           Subclass 38 indent level is 1 Selectively connected or controlled load circuits
[List of Patents for class 307 subclass 39]  39           Subclass 39 indent level is 2 Condition responsive
[List of Patents for class 307 subclass 40]  40           Subclass 40 indent level is 2 Code-controlled
[List of Patents for class 307 subclass 41]  41           Subclass 41 indent level is 2 Sequential or alternating
[List of Patents for class 307 subclass 42]  42           Subclass 42 indent level is 1 Circuit arrangements or layouts
[List of Patents for class 307 subclass 43]  43           PLURAL SUPPLY CIRCUITS OR SOURCES
[List of Patents for class 307 subclass 44]  44           Subclass 44 indent level is 1 One source floats across or compensates for other source
[List of Patents for class 307 subclass 45]  45           Subclass 45 indent level is 2 With intervening converter
[List of Patents for class 307 subclass 46]  46           Subclass 46 indent level is 3 Storage battery or accumulator-type source
[List of Patents for class 307 subclass 47]  47           Subclass 47 indent level is 2 Dynamoelectric-type source
[List of Patents for class 307 subclass 48]  48           Subclass 48 indent level is 2 Storage battery or accumulator-type source
[List of Patents for class 307 subclass 49]  49           Subclass 49 indent level is 3 With series-connected auxiliary source
[List of Patents for class 307 subclass 50]  50           Subclass 50 indent level is 3 Tap-changing or variable number of cells
[List of Patents for class 307 subclass 51]  51           Subclass 51 indent level is 1 Circulating- or inter-current control or prevention
[List of Patents for class 307 subclass 52]  52           Subclass 52 indent level is 1 Load current control
[List of Patents for class 307 subclass 53]  53           Subclass 53 indent level is 2 Load current division
[List of Patents for class 307 subclass 54]  54           Subclass 54 indent level is 3 Serially connected sources
[List of Patents for class 307 subclass 55]  55           Subclass 55 indent level is 3 Fixed or predetermined ratio
[List of Patents for class 307 subclass 56]  56           Subclass 56 indent level is 4 Diverse-or unlike-type sources
[List of Patents for class 307 subclass 57]  57           Subclass 57 indent level is 4 Plural generators
[List of Patents for class 307 subclass 58]  58           Subclass 58 indent level is 4 Plural converters
[List of Patents for class 307 subclass 59]  59           Subclass 59 indent level is 3 Peak or excess load
[List of Patents for class 307 subclass 60]  60           Subclass 60 indent level is 2 Constant load or current
[List of Patents for class 307 subclass 61]  61           Subclass 61 indent level is 3 Serially connected sources
[List of Patents for class 307 subclass 62]  62           Subclass 62 indent level is 2 Load-limiting
[List of Patents for class 307 subclass 63]  63           Subclass 63 indent level is 2 Serially connected sources
[List of Patents for class 307 subclass 64]  64           Subclass 64 indent level is 1 Substitute or emergency source
[List of Patents for class 307 subclass 65]  65           Subclass 65 indent level is 2 Plural substitute sources
[List of Patents for class 307 subclass 66]  66           Subclass 66 indent level is 2 Storage battery or accumulator
[List of Patents for class 307 subclass 67]  67           Subclass 67 indent level is 3 With intervening dynamoelectric machine
[List of Patents for class 307 subclass 68]  68           Subclass 68 indent level is 2 Dynamoelectric
[List of Patents for class 307 subclass 69]  69           Subclass 69 indent level is 1 Sources distributed along load circuit
[List of Patents for class 307 subclass 70]  70           Subclass 70 indent level is 1 Load transfer without paralleling sources
[List of Patents for class 307 subclass 71]  71           Subclass 71 indent level is 1 Series-parallel connection of sources
[List of Patents for class 307 subclass 72]  72           Subclass 72 indent level is 1 Diverse or unlike electrical characteristics
[List of Patents for class 307 subclass 73]  73           Subclass 73 indent level is 2 Differing frequencies
[List of Patents for class 307 subclass 74]  74           Subclass 74 indent level is 2 Differing capacities
[List of Patents for class 307 subclass 75]  75           Subclass 75 indent level is 2 Differing voltages
[List of Patents for class 307 subclass 76]  76           Subclass 76 indent level is 3 Generator sources
[List of Patents for class 307 subclass 77]  77           Subclass 77 indent level is 1 Series-connected sources
[List of Patents for class 307 subclass 78]  78           Subclass 78 indent level is 2 Generator sources
[List of Patents for class 307 subclass 80]  80           Subclass 80 indent level is 1 Selective or optional sources
[List of Patents for class 307 subclass 81]  81           Subclass 81 indent level is 2 Predetermined sequence
[List of Patents for class 307 subclass 82]  82           Subclass 82 indent level is 1 Plural converters
[List of Patents for class 307 subclass 83]  83           Subclass 83 indent level is 1 Plural transformers
[List of Patents for class 307 subclass 84]  84           Subclass 84 indent level is 1 Plural generators
[List of Patents for class 307 subclass 85]  85           Subclass 85 indent level is 1 Connecting or disconnecting
[List of Patents for class 307 subclass 86]  86           Subclass 86 indent level is 2 Condition responsive
[List of Patents for class 307 subclass 87]  87           Subclass 87 indent level is 3 Attainment of voltage, frequency or phase relationship
[List of Patents for class 307 subclass 400]  400           ELECTRETS
[List of Patents for class 307 subclass 401]  401           NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE)
[List of Patents for class 307 subclass 402]  402           Subclass 402 indent level is 1 Parametrons
[List of Patents for class 307 subclass 403]  403           Subclass 403 indent level is 2 Thin film parametrons
[List of Patents for class 307 subclass 404]  404           Subclass 404 indent level is 2 Using logic circuits
[List of Patents for class 307 subclass 405]  405           Subclass 405 indent level is 2 Using pump energizer
[List of Patents for class 307 subclass 406]  406           Subclass 406 indent level is 1 Magnetic flip-flops
[List of Patents for class 307 subclass 407]  407           Subclass 407 indent level is 1 Logic circuits
[List of Patents for class 307 subclass 408]  408           Subclass 408 indent level is 2 Multiaperture
[List of Patents for class 307 subclass 409]  409           Subclass 409 indent level is 2 Clocking, delay or transmission line
[List of Patents for class 307 subclass 410]  410           Subclass 410 indent level is 2 Nor, Not logic circuit
[List of Patents for class 307 subclass 411]  411           Subclass 411 indent level is 2 Exclusive Or, And logic circuit
[List of Patents for class 307 subclass 412]  412           Subclass 412 indent level is 1 Driver circuits
[List of Patents for class 307 subclass 413]  413           Subclass 413 indent level is 1 Signal sensor (e.g., current or frequency)
[List of Patents for class 307 subclass 414]  414           Subclass 414 indent level is 1 Magnetic trigger devices
[List of Patents for class 307 subclass 415]  415           Subclass 415 indent level is 1 Magnetic switching circuits
[List of Patents for class 307 subclass 416]  416           Subclass 416 indent level is 1 Amplifiers using nonlinear reactors (i.e., magnetic amplifiers)
[List of Patents for class 307 subclass 417]  417           Subclass 417 indent level is 2 With transistors
[List of Patents for class 307 subclass 418]  418           Subclass 418 indent level is 2 With feedback
[List of Patents for class 307 subclass 419]  419           Subclass 419 indent level is 1 Magnetic pulse generator
[List of Patents for class 307 subclass 420]  420           Subclass 420 indent level is 2 Using multivibrator
[List of Patents for class 307 subclass 421]  421           Subclass 421 indent level is 2 With specified output waveform
[List of Patents for class 307 subclass 422]  422           Subclass 422 indent level is 1 Multiaperture
[List of Patents for class 307 subclass 423]  423           Subclass 423 indent level is 2 Three apertures or ladder
[List of Patents for class 307 subclass 424]  424           Subclass 424 indent level is 1 Parametric frequency converter
[List of Patents for class 307 subclass 326]  326           PERSONNEL SAFETY OR LIMIT CONTROL FEATURES
[List of Patents for class 307 subclass 327]  327           Subclass 327 indent level is 1 Parasitic current suppression
[List of Patents for class 307 subclass 328]  328           Subclass 328 indent level is 1 Interlock
[List of Patents for class 307 subclass 89]  89           ANTI-INDUCTION OR COUPLING TO OTHER SYSTEMS
[List of Patents for class 307 subclass 90]  90           Subclass 90 indent level is 1 Inducing current control
[List of Patents for class 307 subclass 91]  91           Subclass 91 indent level is 1 Magnetic or electrostatic field control (e.g., shielding)
[List of Patents for class 307 subclass 95]  95           ANTI-ELECTROLYSIS
[List of Patents for class 307 subclass 96]  96           INTERMITTENT REGULATORY INTERRUPTION OF SYSTEM
[List of Patents for class 307 subclass 97]  97           Subclass 97 indent level is 1 Condition responsive
[List of Patents for class 307 subclass 98]  98           COMBINED IMPEDANCE AND SWITCH SYSTEMS
[List of Patents for class 307 subclass 99]  99           Subclass 99 indent level is 1 Condition responsive switch
[List of Patents for class 307 subclass 100]  100           SHUNTING OR SHORT CIRCUITING SYSTEMS
[List of Patents for class 307 subclass 101]  101           RESIDUAL OR REMANENT MAGNETISM CONTROL
[List of Patents for class 307 subclass 102]  102           STABILIZED, ANTI-HUNTING OR ANTIOSCILLATION SYSTEMS
[List of Patents for class 307 subclass 103]  103           WITH LINE DROP COMPENSATION
[List of Patents for class 307 subclass 104]  104           ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS
[List of Patents for class 307 subclass 105]  105           WITH HARMONIC FILTER OR NEUTRALIZER
[List of Patents for class 307 subclass 106]  106           WAVE FORM OR WAVE SHAPE DETERMINATIVE OR PULSE-PRODUCING SYSTEMS
[List of Patents for class 307 subclass 107]  107           Subclass 107 indent level is 1 With rectification or derectification
[List of Patents for class 307 subclass 108]  108           Subclass 108 indent level is 1 With capacitor
[List of Patents for class 307 subclass 109]  109           CAPACITOR
[List of Patents for class 307 subclass 110]  110           Subclass 110 indent level is 1 Parallel-charge, series-discharge (e.g., voltage doublers)
[List of Patents for class 307 subclass 111]  111           NONRESPONSIVE-TO-FREQUENCY-CHANGE SYSTEMS
[List of Patents for class 307 subclass 650]  650           WITH NONSWITCHING MEANS RESPONSIVE TO EXTERNAL NONELECTRICAL CONDITION
[List of Patents for class 307 subclass 651]  651           Subclass 651 indent level is 1 Temperature responsive
[List of Patents for class 307 subclass 652]  652           Subclass 652 indent level is 1 Responsive to approach or passage of an object
[List of Patents for class 307 subclass 653]  653           Subclass 653 indent level is 1 Flame responsive (e.g., flame acts as a rectifier in circuit)
[List of Patents for class 307 subclass 112]  112           SWITCHING SYSTEMS
[List of Patents for class 307 subclass 113]  113           Subclass 113 indent level is 1 Plural switches
[List of Patents for class 307 subclass 114]  114           Subclass 114 indent level is 2 Lazy-man switch type
[List of Patents for class 307 subclass 115]  115           Subclass 115 indent level is 2 Selectively actuated
[List of Patents for class 307 subclass 116]  116           Subclass 116 indent level is 1 Condition responsive
[List of Patents for class 307 subclass 117]  117           Subclass 117 indent level is 2 Light, heat, vibratory or radiant energy
[List of Patents for class 307 subclass 118]  118           Subclass 118 indent level is 2 Fluid pressure, density, level, velocity or humidity
[List of Patents for class 307 subclass 119]  119           Subclass 119 indent level is 2 Mechanical force
[List of Patents for class 307 subclass 120]  120           Subclass 120 indent level is 3 Speed, centrifugal or kinetic force
[List of Patents for class 307 subclass 121]  121           Subclass 121 indent level is 4 Inertia or acceleration
[List of Patents for class 307 subclass 122]  122           Subclass 122 indent level is 4 Direction of rotation
[List of Patents for class 307 subclass 123]  123           Subclass 123 indent level is 4 Differential speed between two bodies
[List of Patents for class 307 subclass 124]  124           Subclass 124 indent level is 4 Torque
[List of Patents for class 307 subclass 125]  125           Subclass 125 indent level is 2 Electrical
[List of Patents for class 307 subclass 126]  126           Subclass 126 indent level is 3 Power or energy
[List of Patents for class 307 subclass 127]  127           Subclass 127 indent level is 3 Polarity, phase sequence or reverse flow
[List of Patents for class 307 subclass 128]  128           Subclass 128 indent level is 3 AC or DC discriminating
[List of Patents for class 307 subclass 129]  129           Subclass 129 indent level is 3 Frequency
[List of Patents for class 307 subclass 130]  130           Subclass 130 indent level is 3 Voltage
[List of Patents for class 307 subclass 131]  131           Subclass 131 indent level is 3 Current
[List of Patents for class 307 subclass 132R]  132R           Subclass 132R indent level is 1 Repetitive make and break
[List of Patents for class 307 subclass 132E]  132E           Subclass 132E indent level is 2 Electronically controlled relay
[List of Patents for class 307 subclass 132EA]  132EA           Subclass 132EA indent level is 3 Responsive to physical condition
[List of Patents for class 307 subclass 132T]  132T           Subclass 132T indent level is 2 Thermal relay
[List of Patents for class 307 subclass 132V]  132V           Subclass 132V indent level is 2 Vibrating relay
[List of Patents for class 307 subclass 132M]  132M           Subclass 132M indent level is 2 Miscellaneous
[List of Patents for class 307 subclass 134]  134           Subclass 134 indent level is 1 With operation facilitating feature
[List of Patents for class 307 subclass 135]  135           Subclass 135 indent level is 2 Preliminary reduction in current or voltage of system
[List of Patents for class 307 subclass 137]  137           Subclass 137 indent level is 2 Switch contact conditioning
[List of Patents for class 307 subclass 138]  138           Subclass 138 indent level is 3 Polarity reversing
[List of Patents for class 307 subclass 139]  139           Subclass 139 indent level is 1 Switch actuation
[List of Patents for class 307 subclass 140]  140           Subclass 140 indent level is 2 Power circuit controlled
[List of Patents for class 307 subclass 141]  141           Subclass 141 indent level is 2 With time delay or retardation means
[List of Patents for class 307 subclass 141.4]  141.4           Subclass 141.4 indent level is 3 Electrically initiated
[List of Patents for class 307 subclass 141.8]  141.8           Subclass 141.8 indent level is 3 Series connected switches
[List of Patents for class 307 subclass 142]  142           Subclass 142 indent level is 2 With locking, holding or braking means
[List of Patents for class 307 subclass 143]  143           Subclass 143 indent level is 2 Electrical actuator
[List of Patents for class 307 subclass 144]  144           Subclass 144 indent level is 2 Fluid-pressure actuator
[List of Patents for class 307 subclass 145]  145           WITH CURRENT COLLECTION OR TRANSFER
[List of Patents for class 307 subclass 146]  146           UNIDIRECTIONAL CONDUCTOR SYSTEMS
[List of Patents for class 307 subclass 147]  147           CONDUCTOR ARRANGEMENTS OR STRUCTURE
[List of Patents for class 307 subclass 148]  148           Subclass 148 indent level is 1 Multipart-conductor current equalization
[List of Patents for class 307 subclass 149]  149           MISCELLANEOUS SYSTEMS
[List of Patents for class 307 subclass 150]  150           Subclass 150 indent level is 1 Power packs
[List of Patents for class 307 subclass 151]  151           Subclass 151 indent level is 1 Conversion systems
[List of Patents for class 307 subclass 152]  152           Subclass 152 indent level is 1 Rate of change responsive systems
[List of Patents for class 307 subclass 153]  153           Subclass 153 indent level is 1 Generator control systems
[List of Patents for class 307 subclass 154]  154           Subclass 154 indent level is 1 For particular load device
[List of Patents for class 307 subclass 155]  155           Subclass 155 indent level is 2 Plural diverse load devices
[List of Patents for class 307 subclass 156]  156           Subclass 156 indent level is 3 Structural load device combinations
[List of Patents for class 307 subclass 157]  157           Subclass 157 indent level is 2 Lamp or discharge device
 
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