USPC Class Details

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(300) computer, data processor equipment

Hierarchy/Derived subclasses

D14 / 300-> 301-> 302-> 303
   -> 304-> 305-> 306
   -> 307
  -> 308-> 309
   -> 310
   -> 311
   -> 312
  -> 313
 -> 314-> 315-> 316
   -> 317
   -> 318
   -> 319
   -> 320
   -> 321-> 322
   -> 323-> 324
    -> 325-> 326
   -> 327
  -> 328
  -> 329-> 330
  -> 331
  -> 332
  -> 333-> 334-> 335
  -> 336-> 337
  -> 338-> 339-> 340
 -> 341-> 342
  -> 343
  -> 344
  -> 345
  -> 346-> 347
 -> 348-> 349-> 350
   -> 351-> 352
  -> 353-> 354
   -> 355
 -> 356-> 357
  -> 358
  -> 359-> 360
  -> 361-> 362
  -> 363-> 364
   -> 365-> 366
    -> 367
    -> 368-> 369
  -> 370
  -> 371-> 372
   -> 373
   -> 374-> 375
   -> 376-> 377-> 378
     -> 379-> 380
   -> 381
   -> 382
  -> 383-> 384
   -> 385-> 386
    -> 387
  -> 388-> 389-> 390
   -> 391
   -> 392-> 393-> 394
    -> 395
    -> 396-> 397
     -> 398
   -> 399-> 400-> 401
   -> 402-> 403
    -> 404
    -> 405
    -> 406
    -> 407
    -> 408
    -> 409
    -> 410
   -> 411
   -> 412-> 413-> 414
     -> 415-> 416
   -> 417
   -> 418
   -> 419
  -> 420-> 421
   -> 422
   -> 423
   -> 424-> 425
   -> 426-> 427
    -> 428-> 429
    -> 430
    -> 431
 -> 432-> 433
  -> 434
  -> 435-> 435.1
   -> 436
   -> 437
   -> 438
  -> 439-> 440
   -> 441-> 442
    -> 443
    -> 444-> 445
     -> 446
   -> 447
  -> 448-> 449
   -> 450
   -> 451-> 452
  -> 453
  -> 454-> 455-> 456
    -> 457
   -> 458-> 459
   -> 460-> 461

uspto searches

Patent Apps in D14/300

Granted Patents in D14/300

Use the links above or do an advanced search in ppubs for:
(D14/300.ccls. or D14/301.ccls. or D14/302.ccls. or D14/303.ccls. or D14/304.ccls. or D14/305.ccls. or D14/306.ccls. or D14/307.ccls. or D14/308.ccls. or D14/309.ccls. or D14/310.ccls. or D14/311.ccls. or D14/312.ccls. or D14/313.ccls. or D14/314.ccls. or D14/315.ccls. or D14/316.ccls. or D14/317.ccls. or D14/318.ccls. or D14/319.ccls. or D14/320.ccls. or D14/321.ccls. or D14/322.ccls. or D14/323.ccls. or D14/324.ccls. or D14/325.ccls. or D14/326.ccls. or D14/327.ccls. or D14/328.ccls. or D14/329.ccls. or D14/330.ccls. or D14/331.ccls. or D14/332.ccls. or D14/333.ccls. or D14/334.ccls. or D14/335.ccls. or D14/336.ccls. or D14/337.ccls. or D14/338.ccls. or D14/339.ccls. or D14/340.ccls. or D14/341.ccls. or D14/342.ccls. or D14/343.ccls. or D14/344.ccls. or D14/345.ccls. or D14/346.ccls. or D14/347.ccls. or D14/348.ccls. or D14/349.ccls. or D14/350.ccls. or D14/351.ccls. or D14/352.ccls. or D14/353.ccls. or D14/354.ccls. or D14/355.ccls. or D14/356.ccls. or D14/357.ccls. or D14/358.ccls. or D14/359.ccls. or D14/360.ccls. or D14/361.ccls. or D14/362.ccls. or D14/363.ccls. or D14/364.ccls. or D14/365.ccls. or D14/366.ccls. or D14/367.ccls. or D14/368.ccls. or D14/369.ccls. or D14/370.ccls. or D14/371.ccls. or D14/372.ccls. or D14/373.ccls. or D14/374.ccls. or D14/375.ccls. or D14/376.ccls. or D14/377.ccls. or D14/378.ccls. or D14/379.ccls. or D14/380.ccls. or D14/381.ccls. or D14/382.ccls. or D14/383.ccls. or D14/384.ccls. or D14/385.ccls. or D14/386.ccls. or D14/387.ccls. or D14/388.ccls. or D14/389.ccls. or D14/390.ccls. or D14/391.ccls. or D14/392.ccls. or D14/393.ccls. or D14/394.ccls. or D14/395.ccls. or D14/396.ccls. or D14/397.ccls. or D14/398.ccls. or D14/399.ccls. or D14/400.ccls. or D14/401.ccls. or D14/402.ccls. or D14/403.ccls. or D14/404.ccls. or D14/405.ccls. or D14/406.ccls. or D14/407.ccls. or D14/408.ccls. or D14/409.ccls. or D14/410.ccls. or D14/411.ccls. or D14/412.ccls. or D14/413.ccls. or D14/414.ccls. or D14/415.ccls. or D14/416.ccls. or D14/417.ccls. or D14/418.ccls. or D14/419.ccls. or D14/420.ccls. or D14/421.ccls. or D14/422.ccls. or D14/423.ccls. or D14/424.ccls. or D14/425.ccls. or D14/426.ccls. or D14/427.ccls. or D14/428.ccls. or D14/429.ccls. or D14/430.ccls. or D14/431.ccls. or D14/432.ccls. or D14/433.ccls. or D14/434.ccls. or D14/435.ccls. or D14/435.1.ccls. or D14/436.ccls. or D14/437.ccls. or D14/438.ccls. or D14/439.ccls. or D14/440.ccls. or D14/441.ccls. or D14/442.ccls. or D14/443.ccls. or D14/444.ccls. or D14/445.ccls. or D14/446.ccls. or D14/447.ccls. or D14/448.ccls. or D14/449.ccls. or D14/450.ccls. or D14/451.ccls. or D14/452.ccls. or D14/453.ccls. or D14/454.ccls. or D14/455.ccls. or D14/456.ccls. or D14/457.ccls. or D14/458.ccls. or D14/459.ccls. or D14/460.ccls. or D14/461.ccls.)

At about 35 search terms the uspto will give you this error "Too many search terms" The 35th term is bold.

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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