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[Search a list of Patent Appplications for class 323]  Class   323ELECTRICITY: POWER SUPPLY OR REGULATION SYSTEMS
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[List of Patents for class 323 subclass 201]  201           INCLUDING A DYNAMOELECTRIC MACHINE
[List of Patents for class 323 subclass 202]  202           Subclass 202 indent level is 1 Balancer sets
[List of Patents for class 323 subclass 203]  203           Subclass 203 indent level is 1 With plural sets of slip rings or brushes
[List of Patents for class 323 subclass 204]  204           Subclass 204 indent level is 1 Condition responsive
[List of Patents for class 323 subclass 205]  205           FOR REACTIVE POWER CONTROL
[List of Patents for class 323 subclass 206]  206           Subclass 206 indent level is 1 Using saturable inductor
[List of Patents for class 323 subclass 207]  207           Subclass 207 indent level is 1 Using converter
[List of Patents for class 323 subclass 208]  208           Subclass 208 indent level is 1 Using impedance
[List of Patents for class 323 subclass 209]  209           Subclass 209 indent level is 2 Switched impedance
[List of Patents for class 323 subclass 210]  210           Subclass 210 indent level is 3 Static switch
[List of Patents for class 323 subclass 211]  211           Subclass 211 indent level is 4 Digitally controlled
[List of Patents for class 323 subclass 212]  212           FOR PHASE SHIFT OR CONTROL
[List of Patents for class 323 subclass 213]  213           Subclass 213 indent level is 1 By splitting and combining
[List of Patents for class 323 subclass 214]  214           Subclass 214 indent level is 1 Using saturable inductor
[List of Patents for class 323 subclass 215]  215           Subclass 215 indent level is 1 Using transformer
[List of Patents for class 323 subclass 216]  216           Subclass 216 indent level is 2 With movable structure or winding
[List of Patents for class 323 subclass 217]  217           Subclass 217 indent level is 1 Using a three or more terminal semiconductive device
[List of Patents for class 323 subclass 218]  218           Subclass 218 indent level is 1 Using impedance
[List of Patents for class 323 subclass 219]  219           Subclass 219 indent level is 2 In bridge
[List of Patents for class 323 subclass 220]  220           IN SHUNT WITH SOURCE OR LOAD
[List of Patents for class 323 subclass 221]  221           Subclass 221 indent level is 1 Photo responsive
[List of Patents for class 323 subclass 222]  222           Subclass 222 indent level is 1 Using choke and switch across source
[List of Patents for class 323 subclass 223]  223           Subclass 223 indent level is 1 Using a three or more terminal semiconductive device
[List of Patents for class 323 subclass 224]  224           Subclass 224 indent level is 2 With additional series regulator
[List of Patents for class 323 subclass 225]  225           Subclass 225 indent level is 2 Plural devices
[List of Patents for class 323 subclass 226]  226           Subclass 226 indent level is 2 Linearly acting
[List of Patents for class 323 subclass 227]  227           Subclass 227 indent level is 1 Using electronic tube
[List of Patents for class 323 subclass 228]  228           Subclass 228 indent level is 2 With additional series regulator
[List of Patents for class 323 subclass 229]  229           Subclass 229 indent level is 1 Using diode
[List of Patents for class 323 subclass 230]  230           Subclass 230 indent level is 2 Inverse parallel
[List of Patents for class 323 subclass 231]  231           Subclass 231 indent level is 2 Zener
[List of Patents for class 323 subclass 232]  232           Subclass 232 indent level is 1 Using inductor
[List of Patents for class 323 subclass 233]  233           Subclass 233 indent level is 1 Using impedance
[List of Patents for class 323 subclass 234]  234           OUTPUT LEVEL RESPONSIVE
[List of Patents for class 323 subclass 235]  235           Subclass 235 indent level is 1 Zero switching
[List of Patents for class 323 subclass 236]  236           Subclass 236 indent level is 2 Nonelectrical condition sensing
[List of Patents for class 323 subclass 237]  237           Subclass 237 indent level is 1 Phase controlled switching using electronic tube or a three or more terminal semiconductive device
[List of Patents for class 323 subclass 238]  238           Subclass 238 indent level is 2 With soft start
[List of Patents for class 323 subclass 239]  239           Subclass 239 indent level is 2 Including single unidirectional element with bidirectional pass
[List of Patents for class 323 subclass 240]  240           Subclass 240 indent level is 2 Including saturable inductor in trigger circuit
[List of Patents for class 323 subclass 241]  241           Subclass 241 indent level is 2 With digital control
[List of Patents for class 323 subclass 242]  242           Subclass 242 indent level is 2 Including ramp generator or controlled capacitor charging
[List of Patents for class 323 subclass 243]  243           Subclass 243 indent level is 3 As input to comparator
[List of Patents for class 323 subclass 244]  244           Subclass 244 indent level is 2 With synchronization
[List of Patents for class 323 subclass 245]  245           Subclass 245 indent level is 2 With nonelectrical condition sensing
[List of Patents for class 323 subclass 246]  246           Subclass 246 indent level is 2 With plural condition sensing
[List of Patents for class 323 subclass 247]  247           Subclass 247 indent level is 1 Using a transformer or inductor as the final control device
[List of Patents for class 323 subclass 248]  248           Subclass 248 indent level is 2 Ferroresonant
[List of Patents for class 323 subclass 249]  249           Subclass 249 indent level is 2 Controllably saturable
[List of Patents for class 323 subclass 250]  250           Subclass 250 indent level is 3 With specific core structure (e.g., gap, aperture, slot, permanent magnet)
[List of Patents for class 323 subclass 251]  251           Subclass 251 indent level is 3 With plural power windings
[List of Patents for class 323 subclass 252]  252           Subclass 252 indent level is 4 In bridge configuration or in bridge arm
[List of Patents for class 323 subclass 253]  253           Subclass 253 indent level is 4 On different cores
[List of Patents for class 323 subclass 254]  254           Subclass 254 indent level is 3 With electronic tube or a three or more terminal semiconductive device in control circuit
[List of Patents for class 323 subclass 255]  255           Subclass 255 indent level is 2 Having a variable length winding (e.g., tapped) as the final control device
[List of Patents for class 323 subclass 256]  256           Subclass 256 indent level is 3 With motor driven tap switch
[List of Patents for class 323 subclass 257]  257           Subclass 257 indent level is 4 Including an electronic tube or a three or more terminal semiconductive device in control circuit
[List of Patents for class 323 subclass 258]  258           Subclass 258 indent level is 3 With electronic tube or a three or more terminal semiconductive device as tap switch
[List of Patents for class 323 subclass 259]  259           Subclass 259 indent level is 2 Having a winding in series with the source and load (e.g., buck-boost)
[List of Patents for class 323 subclass 260]  260           Subclass 260 indent level is 3 With motor in control circuit
[List of Patents for class 323 subclass 261]  261           Subclass 261 indent level is 3 With saturable reactor in control circuit
[List of Patents for class 323 subclass 262]  262           Subclass 262 indent level is 3 Plural windngs in series
[List of Patents for class 323 subclass 263]  263           Subclass 263 indent level is 3 With electronic tube or a three or more terminal semiconductive device in control circuit
[List of Patents for class 323 subclass 264]  264           Subclass 264 indent level is 2 Having movable structure or winding
[List of Patents for class 323 subclass 265]  265           Subclass 265 indent level is 1 Using a three or more terminal semiconductive device as the final control device
[List of Patents for class 323 subclass 266]  266           Subclass 266 indent level is 2 Including pre or post regulation
[List of Patents for class 323 subclass 267]  267           Subclass 267 indent level is 2 Including plural loads commonly controlled
[List of Patents for class 323 subclass 268]  268           Subclass 268 indent level is 2 Including plural final control devices
[List of Patents for class 323 subclass 269]  269           Subclass 269 indent level is 3 Linearly acting parallel connected
[List of Patents for class 323 subclass 270]  270           Subclass 270 indent level is 3 Linearly acting series connected
[List of Patents for class 323 subclass 271]  271           Subclass 271 indent level is 3 Switched (e.g., on-off control)
[List of Patents for class 323 subclass 272]  272           Subclass 272 indent level is 4 Parallel connected
[List of Patents for class 323 subclass 273]  273           Subclass 273 indent level is 2 Linearly acting
[List of Patents for class 323 subclass 274]  274           Subclass 274 indent level is 3 With threshold detection
[List of Patents for class 323 subclass 275]  275           Subclass 275 indent level is 3 With plural condition sensing
[List of Patents for class 323 subclass 276]  276           Subclass 276 indent level is 4 For protective system
[List of Patents for class 323 subclass 277]  277           Subclass 277 indent level is 5 With current sensor
[List of Patents for class 323 subclass 278]  278           Subclass 278 indent level is 6 Having base-emitter of transistor coupled across sensor
[List of Patents for class 323 subclass 279]  279           Subclass 279 indent level is 4 Including final control device parameter
[List of Patents for class 323 subclass 280]  280           Subclass 280 indent level is 3 With a specific feedback amplifier (e.g., integrator, summer)
[List of Patents for class 323 subclass 281]  281           Subclass 281 indent level is 3 With reference voltage circuitry
[List of Patents for class 323 subclass 282]  282           Subclass 282 indent level is 2 Switched (e.g., switching regulators)
[List of Patents for class 323 subclass 283]  283           Subclass 283 indent level is 3 Digitally controlled
[List of Patents for class 323 subclass 284]  284           Subclass 284 indent level is 3 With threshold detection
[List of Patents for class 323 subclass 285]  285           Subclass 285 indent level is 3 With plural condition sensing
[List of Patents for class 323 subclass 286]  286           Subclass 286 indent level is 4 Including filter sensing
[List of Patents for class 323 subclass 287]  287           Subclass 287 indent level is 5 In flyback path
[List of Patents for class 323 subclass 288]  288           Subclass 288 indent level is 3 With ramp generator or controlled capacitor charging
[List of Patents for class 323 subclass 289]  289           Subclass 289 indent level is 3 With base drive control dissipation
[List of Patents for class 323 subclass 290]  290           Subclass 290 indent level is 3 With inductor in control circuit
[List of Patents for class 323 subclass 291]  291           Subclass 291 indent level is 1 Using an electronic tube as the final control device
[List of Patents for class 323 subclass 292]  292           Subclass 292 indent level is 2 With a three or more terminal semiconductive device in control circuit
[List of Patents for class 323 subclass 293]  293           Subclass 293 indent level is 1 Using an impedance as the final control device
[List of Patents for class 323 subclass 294]  294           Subclass 294 indent level is 2 Hall effect device, magnetoresistor or thermistor
[List of Patents for class 323 subclass 295]  295           Subclass 295 indent level is 2 Pressure sensitive resistor
[List of Patents for class 323 subclass 296]  296           Subclass 296 indent level is 2 Liquid contact resistor
[List of Patents for class 323 subclass 297]  297           Subclass 297 indent level is 2 Plural selective resistors
[List of Patents for class 323 subclass 298]  298           Subclass 298 indent level is 2 Variable resistor
[List of Patents for class 323 subclass 299]  299           INPUT LEVEL RESPONSIVE
[List of Patents for class 323 subclass 300]  300           Subclass 300 indent level is 1 Phase controlled switching using electronic tube or a three or more terminal semiconductive device
[List of Patents for class 323 subclass 301]  301           Subclass 301 indent level is 1 Using a transformer or inductor as the final control device
[List of Patents for class 323 subclass 302]  302           Subclass 302 indent level is 2 Saturable
[List of Patents for class 323 subclass 303]  303           Subclass 303 indent level is 1 Using a linearly acting final control device
[List of Patents for class 323 subclass 304]  304           SELF-REGULATING (E.G., NONRETROACTIVE)
[List of Patents for class 323 subclass 305]  305           Subclass 305 indent level is 1 Using a transformer or inductor as the final control device
[List of Patents for class 323 subclass 306]  306           Subclass 306 indent level is 2 Ferroresonant
[List of Patents for class 323 subclass 307]  307           Subclass 307 indent level is 3 With plural cores
[List of Patents for class 323 subclass 308]  308           Subclass 308 indent level is 3 With core having an air gap or magnetic shunt
[List of Patents for class 323 subclass 309]  309           Subclass 309 indent level is 4 Including a ferrocapacitor across a tertiary winding
[List of Patents for class 323 subclass 310]  310           Subclass 310 indent level is 2 Controllably saturable
[List of Patents for class 323 subclass 311]  311           Subclass 311 indent level is 1 Using a three or more terminal semiconductive device as the final control device
[List of Patents for class 323 subclass 312]  312           Subclass 312 indent level is 2 For current stabilization
[List of Patents for class 323 subclass 313]  313           Subclass 313 indent level is 3 To derive a voltage reference (e.g., band gap regulator)
[List of Patents for class 323 subclass 314]  314           Subclass 314 indent level is 4 With additional stage
[List of Patents for class 323 subclass 315]  315           Subclass 315 indent level is 3 Including parallel paths (e.g., current mirror)
[List of Patents for class 323 subclass 316]  316           Subclass 316 indent level is 4 With amplifier connected to or between current paths
[List of Patents for class 323 subclass 317]  317           Subclass 317 indent level is 4 With switched final control device
[List of Patents for class 323 subclass 318]  318           EXTERNAL OR OPERATOR CONTROLLED
[List of Patents for class 323 subclass 319]  319           Subclass 319 indent level is 1 Zero switching
[List of Patents for class 323 subclass 320]  320           Subclass 320 indent level is 1 Phase controlled switching using electronic tube or a three or more terminal semiconductive device
[List of Patents for class 323 subclass 321]  321           Subclass 321 indent level is 2 With soft start
[List of Patents for class 323 subclass 322]  322           Subclass 322 indent level is 2 With digital control
[List of Patents for class 323 subclass 323]  323           Subclass 323 indent level is 2 With interval timer
[List of Patents for class 323 subclass 324]  324           Subclass 324 indent level is 2 Using single unidirectional element with bidirectional pass
[List of Patents for class 323 subclass 325]  325           Subclass 325 indent level is 2 With a three or more terminal semiconductive device in trigger circuit
[List of Patents for class 323 subclass 326]  326           Subclass 326 indent level is 3 Including ramp generator or controlled capacitor charging
[List of Patents for class 323 subclass 327]  327           Subclass 327 indent level is 2 With passive element only in trigger circuit
[List of Patents for class 323 subclass 328]  328           Subclass 328 indent level is 1 Using a transformer or inductor as the final control device
[List of Patents for class 323 subclass 329]  329           Subclass 329 indent level is 2 Controllably saturable
[List of Patents for class 323 subclass 330]  330           Subclass 330 indent level is 3 With permanent magnet
[List of Patents for class 323 subclass 331]  331           Subclass 331 indent level is 3 With core having a gap, aperture, or slot
[List of Patents for class 323 subclass 332]  332           Subclass 332 indent level is 3 With plural power windings
[List of Patents for class 323 subclass 333]  333           Subclass 333 indent level is 4 In bridge configuration or in bridge arm
[List of Patents for class 323 subclass 334]  334           Subclass 334 indent level is 4 On different legs of single core
[List of Patents for class 323 subclass 335]  335           Subclass 335 indent level is 4 On different cores
[List of Patents for class 323 subclass 336]  336           Subclass 336 indent level is 5 Multistage
[List of Patents for class 323 subclass 337]  337           Subclass 337 indent level is 5 Push-pull
[List of Patents for class 323 subclass 338]  338           Subclass 338 indent level is 3 With plural cores
[List of Patents for class 323 subclass 339]  339           Subclass 339 indent level is 3 Including an electronic tube or a three or more terminal semiconductive device in control circuit
[List of Patents for class 323 subclass 340]  340           Subclass 340 indent level is 2 Having a variable length winding (e.g., tapped) as the final control device
[List of Patents for class 323 subclass 341]  341           Subclass 341 indent level is 3 With motor driven tap switch
[List of Patents for class 323 subclass 342]  342           Subclass 342 indent level is 3 With other transformer
[List of Patents for class 323 subclass 343]  343           Subclass 343 indent level is 3 With a three or more terminal semiconductive device
[List of Patents for class 323 subclass 344]  344           Subclass 344 indent level is 2 Having a windng in series with the source and load (e.g., buck-boost)
[List of Patents for class 323 subclass 345]  345           Subclass 345 indent level is 2 Having a switch in series with winding
[List of Patents for class 323 subclass 346]  346           Subclass 346 indent level is 2 Having series-parallel connectable windings
[List of Patents for class 323 subclass 347]  347           Subclass 347 indent level is 2 Having movable structure or winding
[List of Patents for class 323 subclass 348]  348           Subclass 348 indent level is 3 Including rotary motion
[List of Patents for class 323 subclass 349]  349           Subclass 349 indent level is 1 Using a three or more terminal semiconductive device as the final control device
[List of Patents for class 323 subclass 350]  350           Subclass 350 indent level is 2 Including plural final control devices
[List of Patents for class 323 subclass 351]  351           Subclass 351 indent level is 2 Switched (e.g., switching regulators)
[List of Patents for class 323 subclass 352]  352           Subclass 352 indent level is 1 Using an impedance as the final control device
[List of Patents for class 323 subclass 353]  353           Subclass 353 indent level is 2 Resistor
[List of Patents for class 323 subclass 354]  354           Subclass 354 indent level is 3 Selective
[List of Patents for class 323 subclass 355]  355           INCLUDING A TRANSFORMER OR AN INDUCTOR
[List of Patents for class 323 subclass 356]  356           Subclass 356 indent level is 1 With compensation
[List of Patents for class 323 subclass 357]  357           Subclass 357 indent level is 2 For current transformer
[List of Patents for class 323 subclass 358]  358           Subclass 358 indent level is 1 Current transformer
[List of Patents for class 323 subclass 359]  359           Subclass 359 indent level is 1 Potential transformer
[List of Patents for class 323 subclass 360]  360           Subclass 360 indent level is 1 Superconductive
[List of Patents for class 323 subclass 361]  361           Subclass 361 indent level is 1 Polyphase or plural transformers
[List of Patents for class 323 subclass 362]  362           Subclass 362 indent level is 1 With core having permanent magnet or air gap
[List of Patents for class 323 subclass 363]  363           Subclass 363 indent level is 1 Inductor with or in a bridge
[List of Patents for class 323 subclass 364]  364           INCLUDING AN IMPEDANCE
[List of Patents for class 323 subclass 365]  365           Subclass 365 indent level is 1 In a bridge
[List of Patents for class 323 subclass 366]  366           Subclass 366 indent level is 2 Thermistor
[List of Patents for class 323 subclass 367]  367           Subclass 367 indent level is 2 Resistor only
[List of Patents for class 323 subclass 368]  368           Subclass 368 indent level is 1 Hall effect device or magnetoresistor
[List of Patents for class 323 subclass 369]  369           Subclass 369 indent level is 1 Thermistor or resistor
[List of Patents for class 323 subclass 370]  370           Subclass 370 indent level is 2 With capacitor
[List of Patents for class 323 subclass 371]  371           MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
[List of Patents for class 323 subclass 901]  901           STARTING CIRCUITS
[List of Patents for class 323 subclass 902]  902           OPTICAL COUPLING TO SEMICONDUCTOR
[List of Patents for class 323 subclass 903]  903           PRECIPITATORS
[List of Patents for class 323 subclass 904]  904           TOUCH SYSTEMS
[List of Patents for class 323 subclass 905]  905           LAMP DIMMER STRUCTURE
[List of Patents for class 323 subclass 906]  906           SOLAR CELL SYSTEMS
[List of Patents for class 323 subclass 907]  907           TEMPERATURE COMPENSATION OF SEMICONDUCTOR
[List of Patents for class 323 subclass 908]  908           INRUSH CURRENT LIMITERS
[List of Patents for class 323 subclass 909]  909           REMOTE SENSING
[List of Patents for class 323 subclass 910]  910           TWO OF THREE PHASES REGULATED
[List of Patents for class 323 subclass 911]  911           MEDICAL ELECTRONICS
 
FOREIGN ART COLLECTIONS
 
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