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Class   327MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS
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[List of Pre Grant Publications for class 327 subclass 1][List of Patents for class 327 subclass 1]1 SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL
[List of Pre Grant Publications for class 327 subclass 2][List of Patents for class 327 subclass 2]2 Subclass 2 indent level is 1 By phase
[List of Pre Grant Publications for class 327 subclass 3][List of Patents for class 327 subclass 3]3 Subclass 3 indent level is 2 Comparison between plural inputs (e.g., phase angle indication, lead-lag discriminator, etc.)
[List of Pre Grant Publications for class 327 subclass 13][List of Patents for class 327 subclass 13]13 Subclass 13 indent level is 1 By shape
[List of Pre Grant Publications for class 327 subclass 14][List of Patents for class 327 subclass 14]14 Subclass 14 indent level is 2 Slope
 [List of Pre Grant Publications for class 327 subclass 16][List of Patents for class 327 subclass 16]16 Subclass 16 indent level is 2 Having feedback
 [List of Pre Grant Publications for class 327 subclass 17][List of Patents for class 327 subclass 17]17 Subclass 17 indent level is 2 With reference signal
[List of Pre Grant Publications for class 327 subclass 18][List of Patents for class 327 subclass 18]18 Subclass 18 indent level is 1 By presence or absence pulse detection
 [List of Pre Grant Publications for class 327 subclass 19][List of Patents for class 327 subclass 19]19 Subclass 19 indent level is 2 Arbitration
 [List of Pre Grant Publications for class 327 subclass 20][List of Patents for class 327 subclass 20]20 Subclass 20 indent level is 2 Monitoring (e.g., failure detection, etc.)
 [List of Pre Grant Publications for class 327 subclass 21][List of Patents for class 327 subclass 21]21 Subclass 21 indent level is 2 With variable frequency source
 [List of Pre Grant Publications for class 327 subclass 22][List of Patents for class 327 subclass 22]22 Subclass 22 indent level is 1 By pulse noncoincidence
[List of Pre Grant Publications for class 327 subclass 23][List of Patents for class 327 subclass 23]23 Subclass 23 indent level is 1 By pulse coincidence
 [List of Pre Grant Publications for class 327 subclass 24][List of Patents for class 327 subclass 24]24 Subclass 24 indent level is 2 Edge sensing
 [List of Pre Grant Publications for class 327 subclass 25][List of Patents for class 327 subclass 25]25 Subclass 25 indent level is 2 With uniform spacing
 [List of Pre Grant Publications for class 327 subclass 26][List of Patents for class 327 subclass 26]26 Subclass 26 indent level is 2 With pulse width detecting
 [List of Pre Grant Publications for class 327 subclass 27][List of Patents for class 327 subclass 27]27 Subclass 27 indent level is 2 With reference
[List of Pre Grant Publications for class 327 subclass 28][List of Patents for class 327 subclass 28]28 Subclass 28 indent level is 1 By polarity
 [List of Pre Grant Publications for class 327 subclass 29][List of Patents for class 327 subclass 29]29 Subclass 29 indent level is 2 Selection of a particular polarity
 [List of Pre Grant Publications for class 327 subclass 30][List of Patents for class 327 subclass 30]30 Subclass 30 indent level is 2 Opposite polarity
[List of Pre Grant Publications for class 327 subclass 31][List of Patents for class 327 subclass 31]31 Subclass 31 indent level is 1 By pulse width or spacing
 [List of Pre Grant Publications for class 327 subclass 32][List of Patents for class 327 subclass 32]32 Subclass 32 indent level is 2 With shock-excited circuit
 [List of Pre Grant Publications for class 327 subclass 33][List of Patents for class 327 subclass 33]33 Subclass 33 indent level is 2 With sampling
 [List of Pre Grant Publications for class 327 subclass 34][List of Patents for class 327 subclass 34]34 Subclass 34 indent level is 2 Narrow pulse elimination or suppression
 [List of Pre Grant Publications for class 327 subclass 35][List of Patents for class 327 subclass 35]35 Subclass 35 indent level is 2 Separating by duration or gap (e.g., duty cycle, etc.)
 [List of Pre Grant Publications for class 327 subclass 36][List of Patents for class 327 subclass 36]36 Subclass 36 indent level is 2 Selection of a particular pulse width
 [List of Pre Grant Publications for class 327 subclass 37][List of Patents for class 327 subclass 37]37 Subclass 37 indent level is 2 Comparison by threshold or reference
 [List of Pre Grant Publications for class 327 subclass 38][List of Patents for class 327 subclass 38]38 Subclass 38 indent level is 2 With plural paths
[List of Pre Grant Publications for class 327 subclass 39][List of Patents for class 327 subclass 39]39 Subclass 39 indent level is 1 By frequency
[List of Pre Grant Publications for class 327 subclass 40][List of Patents for class 327 subclass 40]40 Subclass 40 indent level is 2 Comparison between plural inputs
[List of Pre Grant Publications for class 327 subclass 44][List of Patents for class 327 subclass 44]44 Subclass 44 indent level is 2 With predetermined frequency selection
[List of Pre Grant Publications for class 327 subclass 47][List of Patents for class 327 subclass 47]47 Subclass 47 indent level is 2 Frequency detection
[List of Pre Grant Publications for class 327 subclass 50][List of Patents for class 327 subclass 50]50 Subclass 50 indent level is 1 By amplitude
[List of Pre Grant Publications for class 327 subclass 51][List of Patents for class 327 subclass 51]51 Subclass 51 indent level is 2 With sensing amplifier
[List of Pre Grant Publications for class 327 subclass 58][List of Patents for class 327 subclass 58]58 Subclass 58 indent level is 2 Maximum or minimum amplitude
[List of Pre Grant Publications for class 327 subclass 63][List of Patents for class 327 subclass 63]63 Subclass 63 indent level is 2 Comparison between plural varying inputs
[List of Pre Grant Publications for class 327 subclass 72][List of Patents for class 327 subclass 72]72 Subclass 72 indent level is 2 Input signal compared to reference derived therefrom
[List of Pre Grant Publications for class 327 subclass 74][List of Patents for class 327 subclass 74]74 Subclass 74 indent level is 2 Input signal compared to plural fixed references
[List of Pre Grant Publications for class 327 subclass 77][List of Patents for class 327 subclass 77]77 Subclass 77 indent level is 2 Input signal compared to single fixed reference
 [List of Pre Grant Publications for class 327 subclass 90][List of Patents for class 327 subclass 90]90 Subclass 90 indent level is 2 Comparison between two characteristics of an input signal
[List of Pre Grant Publications for class 327 subclass 91][List of Patents for class 327 subclass 91]91 Subclass 91 indent level is 2 Including details of sampling or holding
 [List of Pre Grant Publications for class 327 subclass 97][List of Patents for class 327 subclass 97]97 Subclass 97 indent level is 2 With logic or bistable circuit
 [List of Pre Grant Publications for class 327 subclass 98][List of Patents for class 327 subclass 98]98 Subclass 98 indent level is 1 By separating composite signal
 [List of Pre Grant Publications for class 327 subclass 99][List of Patents for class 327 subclass 99]99 Subclass 99 indent level is 1 Having selection between plural continuous waveforms
[List of Pre Grant Publications for class 327 subclass 100][List of Patents for class 327 subclass 100]100 SIGNAL CONVERTING, SHAPING, OR GENERATING
 [List of Pre Grant Publications for class 327 subclass 101][List of Patents for class 327 subclass 101]101 Subclass 101 indent level is 1 Converting input current or voltage to output frequency
 [List of Pre Grant Publications for class 327 subclass 102][List of Patents for class 327 subclass 102]102 Subclass 102 indent level is 1 Converting input frequency to output current or voltage
 [List of Pre Grant Publications for class 327 subclass 103][List of Patents for class 327 subclass 103]103 Subclass 103 indent level is 1 Converting input voltage to output current or vice versa
 [List of Pre Grant Publications for class 327 subclass 104][List of Patents for class 327 subclass 104]104 Subclass 104 indent level is 1 Converting, per se, of an AC input to corresponding DC at an unloaded output
[List of Pre Grant Publications for class 327 subclass 105][List of Patents for class 327 subclass 105]105 Subclass 105 indent level is 1 Synthesizer
 [List of Pre Grant Publications for class 327 subclass 106][List of Patents for class 327 subclass 106]106 Subclass 106 indent level is 2 Having stored waveform data (e.g., in ROM, etc.)
 [List of Pre Grant Publications for class 327 subclass 107][List of Patents for class 327 subclass 107]107 Subclass 107 indent level is 2 Having digital device (e.g., logic gate, flip-flop, etc.)
[List of Pre Grant Publications for class 327 subclass 108][List of Patents for class 327 subclass 108]108 Subclass 108 indent level is 1 Current driver
 [List of Pre Grant Publications for class 327 subclass 109][List of Patents for class 327 subclass 109]109 Subclass 109 indent level is 2 Having semiconductive load
 [List of Pre Grant Publications for class 327 subclass 110][List of Patents for class 327 subclass 110]110 Subclass 110 indent level is 2 Having inductive load (e.g., coil, etc.)
[List of Pre Grant Publications for class 327 subclass 111][List of Patents for class 327 subclass 111]111 Subclass 111 indent level is 2 Having capacitive load
[List of Pre Grant Publications for class 327 subclass 113][List of Patents for class 327 subclass 113]113 Subclass 113 indent level is 1 Frequency or repetition rate conversion or control
[List of Pre Grant Publications for class 327 subclass 114][List of Patents for class 327 subclass 114]114 Subclass 114 indent level is 2 Of output rectangular waveform
[List of Pre Grant Publications for class 327 subclass 117][List of Patents for class 327 subclass 117]117 Subclass 117 indent level is 2 Frequency division
[List of Pre Grant Publications for class 327 subclass 119][List of Patents for class 327 subclass 119]119 Subclass 119 indent level is 2 Frequency multiplication (e.g., harmonic generation, etc.)
 [List of Pre Grant Publications for class 327 subclass 124][List of Patents for class 327 subclass 124]124 Subclass 124 indent level is 1 By periodic switching (e.g., chopper, etc.)
 [List of Pre Grant Publications for class 327 subclass 125][List of Patents for class 327 subclass 125]125 Subclass 125 indent level is 1 Generating parabolic or hyperbolic output
[List of Pre Grant Publications for class 327 subclass 126][List of Patents for class 327 subclass 126]126 Subclass 126 indent level is 1 Generating staircase output
 [List of Pre Grant Publications for class 327 subclass 127][List of Patents for class 327 subclass 127]127 Subclass 127 indent level is 2 With differential amplifier
 [List of Pre Grant Publications for class 327 subclass 128][List of Patents for class 327 subclass 128]128 Subclass 128 indent level is 2 With rectifying element
 [List of Pre Grant Publications for class 327 subclass 129][List of Patents for class 327 subclass 129]129 Subclass 129 indent level is 1 Generating sinusoidal output
 [List of Pre Grant Publications for class 327 subclass 130][List of Patents for class 327 subclass 130]130 Subclass 130 indent level is 1 Generating trapezoidal output
[List of Pre Grant Publications for class 327 subclass 131][List of Patents for class 327 subclass 131]131 Subclass 131 indent level is 1 Generating sawtooth or triangular output
 [List of Pre Grant Publications for class 327 subclass 132][List of Patents for class 327 subclass 132]132 Subclass 132 indent level is 2 With current source or current mirror
 [List of Pre Grant Publications for class 327 subclass 133][List of Patents for class 327 subclass 133]133 Subclass 133 indent level is 2 With distortion control (e.g., linearization, etc.)
 [List of Pre Grant Publications for class 327 subclass 134][List of Patents for class 327 subclass 134]134 Subclass 134 indent level is 2 With slope or duration control
 [List of Pre Grant Publications for class 327 subclass 135][List of Patents for class 327 subclass 135]135 Subclass 135 indent level is 2 Having digital element
 [List of Pre Grant Publications for class 327 subclass 136][List of Patents for class 327 subclass 136]136 Subclass 136 indent level is 2 Having particular delay or sync
 [List of Pre Grant Publications for class 327 subclass 137][List of Patents for class 327 subclass 137]137 Subclass 137 indent level is 2 Having feedback
 [List of Pre Grant Publications for class 327 subclass 138][List of Patents for class 327 subclass 138]138 Subclass 138 indent level is 2 Having temperature compensation
 [List of Pre Grant Publications for class 327 subclass 139][List of Patents for class 327 subclass 139]139 Subclass 139 indent level is 2 Having inductive load
 [List of Pre Grant Publications for class 327 subclass 140][List of Patents for class 327 subclass 140]140 Subclass 140 indent level is 2 With amplitude control
[List of Pre Grant Publications for class 327 subclass 141][List of Patents for class 327 subclass 141]141 Subclass 141 indent level is 1 Synchronizing
[List of Pre Grant Publications for class 327 subclass 142][List of Patents for class 327 subclass 142]142 Subclass 142 indent level is 2 Reset (e.g., initializing, starting, stopping, etc.)
[List of Pre Grant Publications for class 327 subclass 144][List of Patents for class 327 subclass 144]144 Subclass 144 indent level is 2 Using multiple clocks
 [List of Pre Grant Publications for class 327 subclass 154][List of Patents for class 327 subclass 154]154 Subclass 154 indent level is 2 With feedforward
[List of Pre Grant Publications for class 327 subclass 155][List of Patents for class 327 subclass 155]155 Subclass 155 indent level is 2 With feedback
 [List of Pre Grant Publications for class 327 subclass 160][List of Patents for class 327 subclass 160]160 Subclass 160 indent level is 2 With counter
 [List of Pre Grant Publications for class 327 subclass 161][List of Patents for class 327 subclass 161]161 Subclass 161 indent level is 2 With delay means
[List of Pre Grant Publications for class 327 subclass 162][List of Patents for class 327 subclass 162]162 Subclass 162 indent level is 2 Having reference source
 [List of Pre Grant Publications for class 327 subclass 164][List of Patents for class 327 subclass 164]164 Subclass 164 indent level is 1 Generating rectangular (e.g., clock, etc.) or pulse waveform having random characteristic (e.g., random width, etc.)
[List of Pre Grant Publications for class 327 subclass 165][List of Patents for class 327 subclass 165]165 Subclass 165 indent level is 1 Regenerating or restoring rectangular (e.g., clock, etc.) or pulse waveform
 [List of Pre Grant Publications for class 327 subclass 166][List of Patents for class 327 subclass 166]166 Subclass 166 indent level is 2 Having digital device (e.g., logic gate, flip-flop, etc.)
 [List of Pre Grant Publications for class 327 subclass 167][List of Patents for class 327 subclass 167]167 Subclass 167 indent level is 2 Having network providing particular mathematical function (e.g., integrator, etc.)
 [List of Pre Grant Publications for class 327 subclass 168][List of Patents for class 327 subclass 168]168 Subclass 168 indent level is 2 Having inductive device (e.g., transformer, etc.)
 [List of Pre Grant Publications for class 327 subclass 169][List of Patents for class 327 subclass 169]169 Subclass 169 indent level is 2 Having negative resistance device (e.g., tunnel diode, etc.)
 [List of Pre Grant Publications for class 327 subclass 170][List of Patents for class 327 subclass 170]170 Subclass 170 indent level is 1 Slope control of leading or trailing edge of rectangular (e.g., clock, etc.) or pulse waveform
 [List of Pre Grant Publications for class 327 subclass 171][List of Patents for class 327 subclass 171]171 Subclass 171 indent level is 1 Output pulses having opposite polarities
[List of Pre Grant Publications for class 327 subclass 172][List of Patents for class 327 subclass 172]172 Subclass 172 indent level is 1 Rectangular (e.g., clock, etc.) or pulse waveform width control
 [List of Pre Grant Publications for class 327 subclass 173][List of Patents for class 327 subclass 173]173 Subclass 173 indent level is 2 Pulse narrowing
 [List of Pre Grant Publications for class 327 subclass 174][List of Patents for class 327 subclass 174]174 Subclass 174 indent level is 2 Pulse broadening
 [List of Pre Grant Publications for class 327 subclass 175][List of Patents for class 327 subclass 175]175 Subclass 175 indent level is 2 Duty cycle control
 [List of Pre Grant Publications for class 327 subclass 176][List of Patents for class 327 subclass 176]176 Subclass 176 indent level is 2 Having digital device (e.g., logic gate, flip-flop, etc.)
 [List of Pre Grant Publications for class 327 subclass 177][List of Patents for class 327 subclass 177]177 Subclass 177 indent level is 2 Having inductive device (e.g., transformer, etc.)
[List of Pre Grant Publications for class 327 subclass 178][List of Patents for class 327 subclass 178]178 Subclass 178 indent level is 1 Rectangular (e.g., clock, etc.) or pulse waveform amplitude control
 [List of Pre Grant Publications for class 327 subclass 179][List of Patents for class 327 subclass 179]179 Subclass 179 indent level is 2 Gain
 [List of Pre Grant Publications for class 327 subclass 180][List of Patents for class 327 subclass 180]180 Subclass 180 indent level is 2 Limiting, clipping, or clamping
 [List of Pre Grant Publications for class 327 subclass 181][List of Patents for class 327 subclass 181]181 Subclass 181 indent level is 1 Electromagnetic pulse forming
 [List of Pre Grant Publications for class 327 subclass 182][List of Patents for class 327 subclass 182]182 Subclass 182 indent level is 1 Delay line or capacitor storage element charged or discharged through or by a relaxation oscillator type circuit to form pulse
 [List of Pre Grant Publications for class 327 subclass 183][List of Patents for class 327 subclass 183]183 Subclass 183 indent level is 1 Delay line or capacitor storage element charges or discharges through a tube to form pulse
 [List of Pre Grant Publications for class 327 subclass 184][List of Patents for class 327 subclass 184]184 Subclass 184 indent level is 1 Rectangular (e.g., clock, etc.) or pulse waveform generating by conversion from input AC (e.g., sine, etc.) wave
[List of Pre Grant Publications for class 327 subclass 185][List of Patents for class 327 subclass 185]185 Subclass 185 indent level is 1 Particular stable state circuit (e.g., tristable, etc.)
 [List of Pre Grant Publications for class 327 subclass 186][List of Patents for class 327 subclass 186]186 Subclass 186 indent level is 2 Superconductive (e.g., cryogenic, etc.)
 [List of Pre Grant Publications for class 327 subclass 187][List of Patents for class 327 subclass 187]187 Subclass 187 indent level is 2 External effect device (e.g., light, heat, magnetic, or mechanical force sensitive devices, etc.)
[List of Pre Grant Publications for class 327 subclass 188][List of Patents for class 327 subclass 188]188 Subclass 188 indent level is 2 Minority carrier storage effect
[List of Pre Grant Publications for class 327 subclass 190][List of Patents for class 327 subclass 190]190 Subclass 190 indent level is 2 With transformer or saturable core device
[List of Pre Grant Publications for class 327 subclass 192][List of Patents for class 327 subclass 192]192 Subclass 192 indent level is 2 Negative resistance transistor (e.g., unijunction, etc.)
 [List of Pre Grant Publications for class 327 subclass 194][List of Patents for class 327 subclass 194]194 Subclass 194 indent level is 2 Zener or capacitive diode
 [List of Pre Grant Publications for class 327 subclass 195][List of Patents for class 327 subclass 195]195 Subclass 195 indent level is 2 Negative resistance diode having "N"-shape characteristic on I-V plot (e.g., tunnel diode, backward diode, etc.)
 [List of Pre Grant Publications for class 327 subclass 196][List of Patents for class 327 subclass 196]196 Subclass 196 indent level is 2 Negative resistance diode having "S"-shape characteristic on I-V plot (e.g., four or more layer semiconductor device, etc.)
 [List of Pre Grant Publications for class 327 subclass 197][List of Patents for class 327 subclass 197]197 Subclass 197 indent level is 2 Convertible circuit (e.g., bistable to monostable, D-type to T-type, etc.)
 [List of Pre Grant Publications for class 327 subclass 198][List of Patents for class 327 subclass 198]198 Subclass 198 indent level is 2 Initializing, resetting, or protecting a steady state condition
[List of Pre Grant Publications for class 327 subclass 199][List of Patents for class 327 subclass 199]199 Subclass 199 indent level is 2 Circuit having only two stable states (i.e., bistable)
[List of Pre Grant Publications for class 327 subclass 227][List of Patents for class 327 subclass 227]227 Subclass 227 indent level is 2 Monostable
[List of Pre Grant Publications for class 327 subclass 231][List of Patents for class 327 subclass 231]231 Subclass 231 indent level is 1 Phase shift by less than period of input
 [List of Pre Grant Publications for class 327 subclass 232][List of Patents for class 327 subclass 232]232 Subclass 232 indent level is 2 Dependent on frequency
[List of Pre Grant Publications for class 327 subclass 233][List of Patents for class 327 subclass 233]233 Subclass 233 indent level is 2 Correction to specific phase shift
[List of Pre Grant Publications for class 327 subclass 237][List of Patents for class 327 subclass 237]237 Subclass 237 indent level is 2 Variable or adjustable
[List of Pre Grant Publications for class 327 subclass 254][List of Patents for class 327 subclass 254]254 Subclass 254 indent level is 2 Quadrature related (i.e., 90 degrees)
[List of Pre Grant Publications for class 327 subclass 256][List of Patents for class 327 subclass 256]256 Subclass 256 indent level is 2 Phase inversion (i.e., 180 degrees between input and output)
[List of Pre Grant Publications for class 327 subclass 258][List of Patents for class 327 subclass 258]258 Subclass 258 indent level is 2 Multiple outputs
 [List of Pre Grant Publications for class 327 subclass 260][List of Patents for class 327 subclass 260]260 Subclass 260 indent level is 2 Producing AC power control
[List of Pre Grant Publications for class 327 subclass 261][List of Patents for class 327 subclass 261]261 Subclass 261 indent level is 1 Having specific delay in producing output waveform
 [List of Pre Grant Publications for class 327 subclass 262][List of Patents for class 327 subclass 262]262 Subclass 262 indent level is 2 Including significant compensation (e.g., temperature compensated delay, etc.)
[List of Pre Grant Publications for class 327 subclass 263][List of Patents for class 327 subclass 263]263 Subclass 263 indent level is 2 Delay interval set by rising or falling edge
[List of Pre Grant Publications for class 327 subclass 269][List of Patents for class 327 subclass 269]269 Subclass 269 indent level is 2 Multiple outputs with plurality of delay intervals
[List of Pre Grant Publications for class 327 subclass 276][List of Patents for class 327 subclass 276]276 Subclass 276 indent level is 2 Single output with variable or selectable delay
 [List of Pre Grant Publications for class 327 subclass 284][List of Patents for class 327 subclass 284]284 Subclass 284 indent level is 2 Including delay line or charge transfer device
[List of Pre Grant Publications for class 327 subclass 285][List of Patents for class 327 subclass 285]285 Subclass 285 indent level is 2 Having specific active circuit element or structure (e.g., complementary transistors, etc.)
 [List of Pre Grant Publications for class 327 subclass 290][List of Patents for class 327 subclass 290]290 Subclass 290 indent level is 2 Having specific passive circuit element or structure (e.g., RLC circuit, etc.)
[List of Pre Grant Publications for class 327 subclass 291][List of Patents for class 327 subclass 291]291 Subclass 291 indent level is 1 Clock or pulse waveform generating
 [List of Pre Grant Publications for class 327 subclass 292][List of Patents for class 327 subclass 292]292 Subclass 292 indent level is 2 Clock fault compensation or redundant clocks
[List of Pre Grant Publications for class 327 subclass 293][List of Patents for class 327 subclass 293]293 Subclass 293 indent level is 2 With plural paths in network
[List of Pre Grant Publications for class 327 subclass 295][List of Patents for class 327 subclass 295]295 Subclass 295 indent level is 2 Plural outputs
 [List of Pre Grant Publications for class 327 subclass 298][List of Patents for class 327 subclass 298]298 Subclass 298 indent level is 2 Single clock output with multiple inputs
 [List of Pre Grant Publications for class 327 subclass 299][List of Patents for class 327 subclass 299]299 Subclass 299 indent level is 2 Single clock output with single clock input or data input
 [List of Pre Grant Publications for class 327 subclass 300][List of Patents for class 327 subclass 300]300 Subclass 300 indent level is 2 With saturable inductance
 [List of Pre Grant Publications for class 327 subclass 301][List of Patents for class 327 subclass 301]301 Subclass 301 indent level is 2 With electron beam type tube
 [List of Pre Grant Publications for class 327 subclass 302][List of Patents for class 327 subclass 302]302 Subclass 302 indent level is 2 With storage diode
 [List of Pre Grant Publications for class 327 subclass 303][List of Patents for class 327 subclass 303]303 Subclass 303 indent level is 2 With rectifier
 [List of Pre Grant Publications for class 327 subclass 304][List of Patents for class 327 subclass 304]304 Subclass 304 indent level is 2 With inductive device (e.g., transformer, etc.)
 [List of Pre Grant Publications for class 327 subclass 305][List of Patents for class 327 subclass 305]305 Subclass 305 indent level is 2 With gas tube
[List of Pre Grant Publications for class 327 subclass 306][List of Patents for class 327 subclass 306]306 Subclass 306 indent level is 1 Amplitude control
 [List of Pre Grant Publications for class 327 subclass 307][List of Patents for class 327 subclass 307]307 Subclass 307 indent level is 2 Baseline or DC offset correction
 [List of Pre Grant Publications for class 327 subclass 308][List of Patents for class 327 subclass 308]308 Subclass 308 indent level is 2 Variable attenuator
[List of Pre Grant Publications for class 327 subclass 309][List of Patents for class 327 subclass 309]309 Subclass 309 indent level is 2 By limiting, clipping, or clamping
[List of Pre Grant Publications for class 327 subclass 331][List of Patents for class 327 subclass 331]331 Subclass 331 indent level is 2 Maintaining constant level output
 [List of Pre Grant Publications for class 327 subclass 333][List of Patents for class 327 subclass 333]333 Subclass 333 indent level is 2 Interstage coupling (e.g., level shift, etc.)
[List of Pre Grant Publications for class 327 subclass 334][List of Patents for class 327 subclass 334]334 SPECIFIC INPUT TO OUTPUT FUNCTION
 [List of Pre Grant Publications for class 327 subclass 335][List of Patents for class 327 subclass 335]335 Subclass 335 indent level is 1 By differentiating
[List of Pre Grant Publications for class 327 subclass 336][List of Patents for class 327 subclass 336]336 Subclass 336 indent level is 1 By integrating
 [List of Pre Grant Publications for class 327 subclass 337][List of Patents for class 327 subclass 337]337 Subclass 337 indent level is 2 Having switched capacitance
 [List of Pre Grant Publications for class 327 subclass 338][List of Patents for class 327 subclass 338]338 Subclass 338 indent level is 2 With thermionic tube
 [List of Pre Grant Publications for class 327 subclass 339][List of Patents for class 327 subclass 339]339 Subclass 339 indent level is 2 With summing or counting
 [List of Pre Grant Publications for class 327 subclass 340][List of Patents for class 327 subclass 340]340 Subclass 340 indent level is 2 Single vacuum tube
 [List of Pre Grant Publications for class 327 subclass 341][List of Patents for class 327 subclass 341]341 Subclass 341 indent level is 2 With compensation
 [List of Pre Grant Publications for class 327 subclass 342][List of Patents for class 327 subclass 342]342 Subclass 342 indent level is 2 With transducer
 [List of Pre Grant Publications for class 327 subclass 343][List of Patents for class 327 subclass 343]343 Subclass 343 indent level is 2 With rectifier circuit
 [List of Pre Grant Publications for class 327 subclass 344][List of Patents for class 327 subclass 344]344 Subclass 344 indent level is 2 Including RC circuit
 [List of Pre Grant Publications for class 327 subclass 345][List of Patents for class 327 subclass 345]345 Subclass 345 indent level is 2 Having feedback
[List of Pre Grant Publications for class 327 subclass 346][List of Patents for class 327 subclass 346]346 Subclass 346 indent level is 1 Exponential
[List of Pre Grant Publications for class 327 subclass 347][List of Patents for class 327 subclass 347]347 Subclass 347 indent level is 2 Square root
 [List of Pre Grant Publications for class 327 subclass 349][List of Patents for class 327 subclass 349]349 Subclass 349 indent level is 2 Square function
[List of Pre Grant Publications for class 327 subclass 350][List of Patents for class 327 subclass 350]350 Subclass 350 indent level is 1 Logarithmic
 [List of Pre Grant Publications for class 327 subclass 351][List of Patents for class 327 subclass 351]351 Subclass 351 indent level is 2 With cascade network
 [List of Pre Grant Publications for class 327 subclass 352][List of Patents for class 327 subclass 352]352 Subclass 352 indent level is 2 With summing
 [List of Pre Grant Publications for class 327 subclass 353][List of Patents for class 327 subclass 353]353 Subclass 353 indent level is 2 With vacuum tube
 [List of Pre Grant Publications for class 327 subclass 354][List of Patents for class 327 subclass 354]354 Subclass 354 indent level is 1 Absolute value
[List of Pre Grant Publications for class 327 subclass 355][List of Patents for class 327 subclass 355]355 Subclass 355 indent level is 1 Combining of plural signals
[List of Pre Grant Publications for class 327 subclass 356][List of Patents for class 327 subclass 356]356 Subclass 356 indent level is 2 Product
 [List of Pre Grant Publications for class 327 subclass 360][List of Patents for class 327 subclass 360]360 Subclass 360 indent level is 2 Quotient
 [List of Pre Grant Publications for class 327 subclass 361][List of Patents for class 327 subclass 361]361 Subclass 361 indent level is 2 Summing
 [List of Pre Grant Publications for class 327 subclass 362][List of Patents for class 327 subclass 362]362 Subclass 362 indent level is 1 With compensation
 [List of Pre Grant Publications for class 327 subclass 363][List of Patents for class 327 subclass 363]363 Subclass 363 indent level is 1 Having feedback
 [List of Pre Grant Publications for class 327 subclass 364][List of Patents for class 327 subclass 364]364 Subclass 364 indent level is 1 With vacuum tube
[List of Pre Grant Publications for class 327 subclass 365][List of Patents for class 327 subclass 365]365 GATING (I.E., SWITCHING INPUT TO OUTPUT)
[List of Pre Grant Publications for class 327 subclass 366][List of Patents for class 327 subclass 366]366 Subclass 366 indent level is 1 Superconductive (e.g., cryogenic, etc.) device
 [List of Pre Grant Publications for class 327 subclass 367][List of Patents for class 327 subclass 367]367 Subclass 367 indent level is 2 Josephson junction
 [List of Pre Grant Publications for class 327 subclass 368][List of Patents for class 327 subclass 368]368 Subclass 368 indent level is 2 Critical current control
[List of Pre Grant Publications for class 327 subclass 369][List of Patents for class 327 subclass 369]369 Subclass 369 indent level is 2 External control (e.g., piezoelectric, light, etc.)
 [List of Pre Grant Publications for class 327 subclass 372][List of Patents for class 327 subclass 372]372 Subclass 372 indent level is 2 Inductive effect
 [List of Pre Grant Publications for class 327 subclass 373][List of Patents for class 327 subclass 373]373 Subclass 373 indent level is 2 Layout
[List of Pre Grant Publications for class 327 subclass 374][List of Patents for class 327 subclass 374]374 Subclass 374 indent level is 1 Accelerating switching
 [List of Pre Grant Publications for class 327 subclass 375][List of Patents for class 327 subclass 375]375 Subclass 375 indent level is 2 Saturation prevention
 [List of Pre Grant Publications for class 327 subclass 376][List of Patents for class 327 subclass 376]376 Subclass 376 indent level is 2 Turn-on
 [List of Pre Grant Publications for class 327 subclass 377][List of Patents for class 327 subclass 377]377 Subclass 377 indent level is 2 Turn-off
 [List of Pre Grant Publications for class 327 subclass 378][List of Patents for class 327 subclass 378]378 Subclass 378 indent level is 1 Compensation for variations in external physical values (e.g., temperature, etc.)
[List of Pre Grant Publications for class 327 subclass 379][List of Patents for class 327 subclass 379]379 Subclass 379 indent level is 1 Signal transmission integrity or spurious noise override
 [List of Pre Grant Publications for class 327 subclass 380][List of Patents for class 327 subclass 380]380 Subclass 380 indent level is 2 Preventing quick rise gating current (i.e., di/dt)
 [List of Pre Grant Publications for class 327 subclass 381][List of Patents for class 327 subclass 381]381 Subclass 381 indent level is 2 Preventing quick rise gating voltage (i.e., dv/dt)
 [List of Pre Grant Publications for class 327 subclass 382][List of Patents for class 327 subclass 382]382 Subclass 382 indent level is 2 Parasitic prevention or compensation (e.g., parasitic capacitance, etc.)
 [List of Pre Grant Publications for class 327 subclass 383][List of Patents for class 327 subclass 383]383 Subclass 383 indent level is 2 Ensuring fully conducting state
[List of Pre Grant Publications for class 327 subclass 384][List of Patents for class 327 subclass 384]384 Subclass 384 indent level is 2 Switch noise signal
[List of Pre Grant Publications for class 327 subclass 387][List of Patents for class 327 subclass 387]387 Subclass 387 indent level is 2 Control signal derived from or responsive to input signal
[List of Pre Grant Publications for class 327 subclass 389][List of Patents for class 327 subclass 389]389 Subclass 389 indent level is 2 Insulated gate FET (e.g., MOSFET, etc.)
[List of Pre Grant Publications for class 327 subclass 392][List of Patents for class 327 subclass 392]392 Subclass 392 indent level is 1 Delay controlled switch (e.g., fixed, single time of delay control, etc.)
[List of Pre Grant Publications for class 327 subclass 393][List of Patents for class 327 subclass 393]393 Subclass 393 indent level is 2 With variable or multiple adjustable time of delay control (e.g., variable charge-discharge, on-delay/off-delay control, etc.)
 [List of Pre Grant Publications for class 327 subclass 398][List of Patents for class 327 subclass 398]398 Subclass 398 indent level is 2 For predetermined time period
 [List of Pre Grant Publications for class 327 subclass 399][List of Patents for class 327 subclass 399]399 Subclass 399 indent level is 2 With field-effect device
 [List of Pre Grant Publications for class 327 subclass 400][List of Patents for class 327 subclass 400]400 Subclass 400 indent level is 2 Propagation through plural delay devices or paths
 [List of Pre Grant Publications for class 327 subclass 401][List of Patents for class 327 subclass 401]401 Subclass 401 indent level is 2 With plural switching elements (e.g., sequential, etc.)
 [List of Pre Grant Publications for class 327 subclass 402][List of Patents for class 327 subclass 402]402 Subclass 402 indent level is 2 Including negative resistance device in delay circuit (e.g., unijunction transistor, etc.)
[List of Pre Grant Publications for class 327 subclass 403][List of Patents for class 327 subclass 403]403 Subclass 403 indent level is 1 Parallel controlled paths
 [List of Pre Grant Publications for class 327 subclass 404][List of Patents for class 327 subclass 404]404 Subclass 404 indent level is 2 Field-effect transistor
 [List of Pre Grant Publications for class 327 subclass 405][List of Patents for class 327 subclass 405]405 Subclass 405 indent level is 2 Bipolar transistor
 [List of Pre Grant Publications for class 327 subclass 406][List of Patents for class 327 subclass 406]406 Subclass 406 indent level is 2 Electron tube
[List of Pre Grant Publications for class 327 subclass 407][List of Patents for class 327 subclass 407]407 Subclass 407 indent level is 1 Converging with plural inputs and single output
[List of Pre Grant Publications for class 327 subclass 408][List of Patents for class 327 subclass 408]408 Subclass 408 indent level is 2 Field-effect transistor
[List of Pre Grant Publications for class 327 subclass 411][List of Patents for class 327 subclass 411]411 Subclass 411 indent level is 2 Bipolar transistor
 [List of Pre Grant Publications for class 327 subclass 414][List of Patents for class 327 subclass 414]414 Subclass 414 indent level is 2 Electron tube
[List of Pre Grant Publications for class 327 subclass 415][List of Patents for class 327 subclass 415]415 Subclass 415 indent level is 1 Diverging with single input and plural outputs
 [List of Pre Grant Publications for class 327 subclass 416][List of Patents for class 327 subclass 416]416 Subclass 416 indent level is 2 Field-effect transistor
 [List of Pre Grant Publications for class 327 subclass 417][List of Patents for class 327 subclass 417]417 Subclass 417 indent level is 2 Bipolar transistor
 [List of Pre Grant Publications for class 327 subclass 418][List of Patents for class 327 subclass 418]418 Subclass 418 indent level is 2 Electron tube
[List of Pre Grant Publications for class 327 subclass 419][List of Patents for class 327 subclass 419]419 Subclass 419 indent level is 1 Utilizing three or more electrode solid-state device
[List of Pre Grant Publications for class 327 subclass 420][List of Patents for class 327 subclass 420]420 Subclass 420 indent level is 2 Breakdown characteristic (e.g., punch-through, tunneling, etc.)
[List of Pre Grant Publications for class 327 subclass 423][List of Patents for class 327 subclass 423]423 Subclass 423 indent level is 2 Bridge circuit
[List of Pre Grant Publications for class 327 subclass 425][List of Patents for class 327 subclass 425]425 Subclass 425 indent level is 2 Bilateral transistor
[List of Pre Grant Publications for class 327 subclass 427][List of Patents for class 327 subclass 427]427 Subclass 427 indent level is 2 Field-effect transistor
[List of Pre Grant Publications for class 327 subclass 438][List of Patents for class 327 subclass 438]438 Subclass 438 indent level is 2 Four or more layer device (e.g., thyristor, etc.)
 [List of Pre Grant Publications for class 327 subclass 477][List of Patents for class 327 subclass 477]477 Subclass 477 indent level is 2 Unijunction transistor (UJT)
[List of Pre Grant Publications for class 327 subclass 478][List of Patents for class 327 subclass 478]478 Subclass 478 indent level is 2 Bipolar transistor
[List of Pre Grant Publications for class 327 subclass 493][List of Patents for class 327 subclass 493]493 Subclass 493 indent level is 1 Utilizing two electrode solid-state device
[List of Pre Grant Publications for class 327 subclass 494][List of Patents for class 327 subclass 494]494 Subclass 494 indent level is 2 Bridge circuit
[List of Pre Grant Publications for class 327 subclass 498][List of Patents for class 327 subclass 498]498 Subclass 498 indent level is 2 Negative resistance
 [List of Pre Grant Publications for class 327 subclass 502][List of Patents for class 327 subclass 502]502 Subclass 502 indent level is 2 Breakdown characteristic (e.g., zener diode, etc.)
 [List of Pre Grant Publications for class 327 subclass 503][List of Patents for class 327 subclass 503]503 Subclass 503 indent level is 2 PIN diode
[List of Pre Grant Publications for class 327 subclass 504][List of Patents for class 327 subclass 504]504 Subclass 504 indent level is 2 PN junction diode
 [List of Pre Grant Publications for class 327 subclass 506][List of Patents for class 327 subclass 506]506 Subclass 506 indent level is 1 Three or more electrode electron tube
[List of Pre Grant Publications for class 327 subclass 507][List of Patents for class 327 subclass 507]507 Subclass 507 indent level is 1 Two electrode electron tube
 [List of Pre Grant Publications for class 327 subclass 508][List of Patents for class 327 subclass 508]508 Subclass 508 indent level is 2 Bridge circuit
[List of Pre Grant Publications for class 327 subclass 509][List of Patents for class 327 subclass 509]509 EXTERNAL EFFECT
[List of Pre Grant Publications for class 327 subclass 510][List of Patents for class 327 subclass 510]510 Subclass 510 indent level is 1 Magnetic
 [List of Pre Grant Publications for class 327 subclass 511][List of Patents for class 327 subclass 511]511 Subclass 511 indent level is 2 Utilizing Hall effect
[List of Pre Grant Publications for class 327 subclass 512][List of Patents for class 327 subclass 512]512 Subclass 512 indent level is 1 Temperature
 [List of Pre Grant Publications for class 327 subclass 513][List of Patents for class 327 subclass 513]513 Subclass 513 indent level is 2 With compensation for temperature fluctuations
[List of Pre Grant Publications for class 327 subclass 514][List of Patents for class 327 subclass 514]514 Subclass 514 indent level is 1 Light
 [List of Pre Grant Publications for class 327 subclass 515][List of Patents for class 327 subclass 515]515 Subclass 515 indent level is 2 Elements forming an array
 [List of Pre Grant Publications for class 327 subclass 516][List of Patents for class 327 subclass 516]516 Subclass 516 indent level is 1 Utilizing conversion of mechanical variations into electrical variations (e.g., vibration sensitive, etc.)
 [List of Pre Grant Publications for class 327 subclass 517][List of Patents for class 327 subclass 517]517 Subclass 517 indent level is 1 Responsive to proximity or touch
[List of Pre Grant Publications for class 327 subclass 518][List of Patents for class 327 subclass 518]518 WITH PARTICULAR CONTROL
 [List of Pre Grant Publications for class 327 subclass 519][List of Patents for class 327 subclass 519]519 Subclass 519 indent level is 1 Plurality of load devices
[List of Pre Grant Publications for class 327 subclass 520][List of Patents for class 327 subclass 520]520 Subclass 520 indent level is 1 Plural active components included in a controlling circuit
 [List of Pre Grant Publications for class 327 subclass 521][List of Patents for class 327 subclass 521]521 Subclass 521 indent level is 2 Connected in inverse parallel
 [List of Pre Grant Publications for class 327 subclass 522][List of Patents for class 327 subclass 522]522 Subclass 522 indent level is 2 Gaseous tube
 [List of Pre Grant Publications for class 327 subclass 523][List of Patents for class 327 subclass 523]523 Subclass 523 indent level is 1 Gaseous tube
[List of Pre Grant Publications for class 327 subclass 524][List of Patents for class 327 subclass 524]524 SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM
 [List of Pre Grant Publications for class 327 subclass 525][List of Patents for class 327 subclass 525]525 Subclass 525 indent level is 1 Fusible link or intentional destruct circuit
 [List of Pre Grant Publications for class 327 subclass 526][List of Patents for class 327 subclass 526]526 Subclass 526 indent level is 1 Redundant
[List of Pre Grant Publications for class 327 subclass 527][List of Patents for class 327 subclass 527]527 Subclass 527 indent level is 1 Superconductive (e.g., cryogenic, etc.) device
 [List of Pre Grant Publications for class 327 subclass 528][List of Patents for class 327 subclass 528]528 Subclass 528 indent level is 2 Josephson junction
 [List of Pre Grant Publications for class 327 subclass 529][List of Patents for class 327 subclass 529]529 Subclass 529 indent level is 2 Impact ionization
[List of Pre Grant Publications for class 327 subclass 530][List of Patents for class 327 subclass 530]530 Subclass 530 indent level is 1 With specific source of supply or bias voltage
[List of Pre Grant Publications for class 327 subclass 531][List of Patents for class 327 subclass 531]531 Subclass 531 indent level is 2 Fluctuating or AC source with rectifier or filter
[List of Pre Grant Publications for class 327 subclass 534][List of Patents for class 327 subclass 534]534 Subclass 534 indent level is 2 Having particular substrate biasing
[List of Pre Grant Publications for class 327 subclass 538][List of Patents for class 327 subclass 538]538 Subclass 538 indent level is 2 Stabilized (e.g., compensated, regulated, maintained, etc.)
 [List of Pre Grant Publications for class 327 subclass 544][List of Patents for class 327 subclass 544]544 Subclass 544 indent level is 2 Power conservation or pulse type
[List of Pre Grant Publications for class 327 subclass 545][List of Patents for class 327 subclass 545]545 Subclass 545 indent level is 2 Including signal protection or bias preservation
 [List of Pre Grant Publications for class 327 subclass 547][List of Patents for class 327 subclass 547]547 Subclass 547 indent level is 2 With selectively or alternately DC or AC input
 [List of Pre Grant Publications for class 327 subclass 548][List of Patents for class 327 subclass 548]548 Subclass 548 indent level is 2 With oscillator or interrupter
 [List of Pre Grant Publications for class 327 subclass 549][List of Patents for class 327 subclass 549]549 Subclass 549 indent level is 2 With hum or interaction prevention
 [List of Pre Grant Publications for class 327 subclass 550][List of Patents for class 327 subclass 550]550 Subclass 550 indent level is 2 With particular filament heating circuit
[List of Pre Grant Publications for class 327 subclass 551][List of Patents for class 327 subclass 551]551 Subclass 551 indent level is 1 Unwanted signal suppression
[List of Pre Grant Publications for class 327 subclass 552][List of Patents for class 327 subclass 552]552 Subclass 552 indent level is 2 Active filter
[List of Pre Grant Publications for class 327 subclass 560][List of Patents for class 327 subclass 560]560 Subclass 560 indent level is 1 Nonlinear amplifying circuit
[List of Pre Grant Publications for class 327 subclass 561][List of Patents for class 327 subclass 561]561 Subclass 561 indent level is 2 With operational amplifier
 [List of Pre Grant Publications for class 327 subclass 563][List of Patents for class 327 subclass 563]563 Subclass 563 indent level is 2 With differential amplifier
[List of Pre Grant Publications for class 327 subclass 564][List of Patents for class 327 subclass 564]564 Subclass 564 indent level is 1 Integrated structure
[List of Pre Grant Publications for class 327 subclass 565][List of Patents for class 327 subclass 565]565 Subclass 565 indent level is 2 With specific layout or layout interconnections
 [List of Pre Grant Publications for class 327 subclass 567][List of Patents for class 327 subclass 567]567 Subclass 567 indent level is 1 Thin film
[List of Pre Grant Publications for class 327 subclass 568][List of Patents for class 327 subclass 568]568 Subclass 568 indent level is 1 Negative resistance type
 [List of Pre Grant Publications for class 327 subclass 569][List of Patents for class 327 subclass 569]569 Subclass 569 indent level is 2 Unijunction transistor
 [List of Pre Grant Publications for class 327 subclass 570][List of Patents for class 327 subclass 570]570 Subclass 570 indent level is 2 Having "N"-shape curve on I-V plot (e.g., tunnel diode type, etc.)
 [List of Pre Grant Publications for class 327 subclass 571][List of Patents for class 327 subclass 571]571 Subclass 571 indent level is 2 Having "S"-shape curve on I-V plot (e.g., pnpn diode type, etc.)
[List of Pre Grant Publications for class 327 subclass 572][List of Patents for class 327 subclass 572]572 Subclass 572 indent level is 2 Secondary emissive type
[List of Pre Grant Publications for class 327 subclass 574][List of Patents for class 327 subclass 574]574 Subclass 574 indent level is 1 Utilizing a three or more electrode solid-state device
 [List of Pre Grant Publications for class 327 subclass 575][List of Patents for class 327 subclass 575]575 Subclass 575 indent level is 2 Darlington connection
 [List of Pre Grant Publications for class 327 subclass 576][List of Patents for class 327 subclass 576]576 Subclass 576 indent level is 2 Complementary transistors
 [List of Pre Grant Publications for class 327 subclass 577][List of Patents for class 327 subclass 577]577 Subclass 577 indent level is 2 Multiple emitter transistor
 [List of Pre Grant Publications for class 327 subclass 578][List of Patents for class 327 subclass 578]578 Subclass 578 indent level is 2 Multiple collector transistor
 [List of Pre Grant Publications for class 327 subclass 579][List of Patents for class 327 subclass 579]579 Subclass 579 indent level is 2 Minority carrier storage
 [List of Pre Grant Publications for class 327 subclass 580][List of Patents for class 327 subclass 580]580 Subclass 580 indent level is 2 Transistor breakdown device (e.g., avalanche, zener, punch through, etc.)
 [List of Pre Grant Publications for class 327 subclass 581][List of Patents for class 327 subclass 581]581 Subclass 581 indent level is 2 Field-effect transistor
 [List of Pre Grant Publications for class 327 subclass 582][List of Patents for class 327 subclass 582]582 Subclass 582 indent level is 2 Four or more layer device (e.g., silicon-controlled rectifier, etc.)
[List of Pre Grant Publications for class 327 subclass 583][List of Patents for class 327 subclass 583]583 Subclass 583 indent level is 1 Utilizing two electrode solid-state device
 [List of Pre Grant Publications for class 327 subclass 584][List of Patents for class 327 subclass 584]584 Subclass 584 indent level is 2 Breakdown diode (e.g., zener diode, avalanche diode, etc.)
 [List of Pre Grant Publications for class 327 subclass 585][List of Patents for class 327 subclass 585]585 Subclass 585 indent level is 2 Minority carrier storage diode (e.g., enhancement diode, etc.)
 [List of Pre Grant Publications for class 327 subclass 586][List of Patents for class 327 subclass 586]586 Subclass 586 indent level is 2 Capacitive diode
 [List of Pre Grant Publications for class 327 subclass 587][List of Patents for class 327 subclass 587]587 Subclass 587 indent level is 2 Bridge circuit
 [List of Pre Grant Publications for class 327 subclass 588][List of Patents for class 327 subclass 588]588 Subclass 588 indent level is 1 With bridge circuit
 [List of Pre Grant Publications for class 327 subclass 589][List of Patents for class 327 subclass 589]589 Subclass 589 indent level is 1 With bootstrap circuit
 [List of Pre Grant Publications for class 327 subclass 590][List of Patents for class 327 subclass 590]590 Subclass 590 indent level is 1 With particular feedback
 [List of Pre Grant Publications for class 327 subclass 591][List of Patents for class 327 subclass 591]591 Subclass 591 indent level is 1 Tube performs plural functions
 [List of Pre Grant Publications for class 327 subclass 592][List of Patents for class 327 subclass 592]592 Subclass 592 indent level is 1 With oscillation prevention
 [List of Pre Grant Publications for class 327 subclass 593][List of Patents for class 327 subclass 593]593 Subclass 593 indent level is 1 With distributed parameter circuit
 [List of Pre Grant Publications for class 327 subclass 594][List of Patents for class 327 subclass 594]594 Subclass 594 indent level is 1 With particular coupling or decoupling
 [List of Pre Grant Publications for class 327 subclass 595][List of Patents for class 327 subclass 595]595 Subclass 595 indent level is 1 With particular connecting
 [List of Pre Grant Publications for class 327 subclass 596][List of Patents for class 327 subclass 596]596 Subclass 596 indent level is 1 Including oscillatory or shock-excited circuit
 [List of Pre Grant Publications for class 327 subclass 597][List of Patents for class 327 subclass 597]597 Subclass 597 indent level is 1 With particular grid control
[List of Pre Grant Publications for class 327 subclass 598][List of Patents for class 327 subclass 598]598 Subclass 598 indent level is 1 With particular tube structure
[List of Pre Grant Publications for class 327 subclass 599][List of Patents for class 327 subclass 599]599 Subclass 599 indent level is 2 Vacuum tube type
[List of Pre Grant Publications for class 327 subclass 601][List of Patents for class 327 subclass 601]601 Subclass 601 indent level is 2 Gas tube
 [List of Pre Grant Publications for class 327 subclass 603][List of Patents for class 327 subclass 603]603 MISCELLANEOUS
 
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