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Classification Resources
 
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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 334][List of Patents for class 327 subclass 334]334 SPECIFIC INPUT TO OUTPUT FUNCTION
[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 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 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 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 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 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 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 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 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 509][List of Patents for class 327 subclass 509]509 EXTERNAL EFFECT
[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 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 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 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 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 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 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 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 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 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 603][List of Patents for class 327 subclass 603]603 MISCELLANEOUS
 
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