BACK BONDED - Class 257
BACK(*) - Class 412
BACKER - Class 052
BACKHOE - Class 037
BACKING(*) - Class 412
BACTERICIDE - Class 210
BAIT - Class 065
BALANCED CIRCUIT - Classes 330, 333
BALL BOND - Class 257
BALLISTIC TRANSPORT DEVICE - Class 257
BAND - Class 053
BAND GAP - Classes 257, 438
BANDWIDTH - Classes 370, 725
BARK - Class 144
Bark spectrum - Class 704
BARRIER - Classes 049, 052, 249
BARRIER LAYER DEVICE - Class 029
BARRIER REGION OR LAYER - Classes 257, 438
BARRITT DIODE - Class 257
BASE - Classes 075, 117, 313, 338, 420, 428, 901
BASE CURRENT - Class 257
BASE ELECTRODE - Class 330
BASE REGION - Class 257
BASIC DYE - Class 008
BASIC INGREDIENT - Class 426
BASIC RECEIVER - Class 348
BATCH - Class 065
BATCH CHARGER - Class 065
BATT - Class 264
BATTERY - Class 320
BATTERYCELL - Class 429
BBCO - Class 438
BBD - Class 438
BBL - Class 438
BEAD - Class 065
BEAM LEADS - Class 257
BEAM TUBE - Class 331
BEAT FREQUENCY - Class 331
BEATER - Class 460
BED - Class 438
BELOW GROUND - Class 175
BELT - Class 474
BENDING - Classes 156, 264
BENZENE NUCLEUS - Class 260
BENZENE RING - Classes 514, 532
BERYL - Class 117
BESSEMER CONVERTER - Class 075
BEVEL GEAR - Class 475
BH - Class 438
BHF - Class 438
BIAS - Class 257
BIAS CONTROL - Class 330
BIAS, BIAS VOLTAGE, BIAS CURRENT - Class 330
BIC - Class 438
BICFET - Class 438
BiCMOS - Class 438
BICONTINUOUS EMULSION - Class 516
BICYCLO RING SYSTEM - Class 514
BI-DIRECTIONAL - Class 379
BI-FET - Class 257
BILATERAL - Class 257
BiMOS - Class 438
BINARY COMPOUND - Classes 257, 423, 438
BINDING - Classes 053, 100
BINOCULAR - Class 359
BINOCULAR COORDINATION - Class 351
BIOCHEMICAL - Class 435
BIOCHEMICAL METHOD - Class 506
BIOLOGICALLY ACTIVE POLYPEPTIDE - Class 520
BIOMIMETICS or BIOMIMICRY - Class 977
BIONANOTECHNOLOGY (NANOBIOTECHNOLOGY) - Class 977
BIPOLAR - Classes 257, 438
BIPOLAR TRANSISTOR - Classes 257, 438
BIPROPELLANT - Class 060
BIRD"S BEAK - Class 438
BIREFRINGENT - Classes 359, 372
BITUMINOUS OR TARRY RESIDUE - Class 428
BJT - Class 438
BKBO - Class 438
BLADE - Classes 415, 416
BLADE ANGLE - Class 416
BLANK - Classes 072, 428
BLANK HOLDER - Class 072
BLANKET MATERIAL - Class 376
BLANKING INTERVAL - Class 725
BLAST FURNACE - Class 075
BLEEDING - Class 516
BLIND STITCH - Class 112
BLM - Class 438
BLOCH WAVELENGTH - Class 257
BLOCK - Classes 052, 428, 725
BLOCK COPOLYMER - Class 520
BLOCK-TYPE COPOLYMER - Class 520
BLOSSOM-END - Class 099
BLOWING - Classes 065, 425
BLOWN FATTY ACID - Class 516
BLOWN OIL - Class 516
BLUEING - Class 148
BMD - Class 438
BODY - Class 462
BOE - Class 438
BOILER - Class 122
BOLT - Class 070
BOND - Class 425
BONDING AREA - Class 257
BONDING PAD - Classes 257, 438
BONDING WIRE - Class 257
BONE BLACK - Class 502
BOOK - Classes 281, 283, 462
BOOK(*) - Class 412
BOOM - Classes 037, 212
BOOT - Class 713
BORE - Class 175
BOREWALL - Class 175
BORING MEANS - Class 175
BOSE-EINSTEIN CONDENSATE - Class 977
BOSE-EINSTEIN STATISTICS - Class 977
BOTTOM-UP MANUFACTURING - Class 977
BOULE - Class 117
BOWL - Classes 037, 494
BOX - Class 438
BOXES - Class 438
BPSG - Class 438
BPTEOS - Class 438
BRACE ARM - Class 351
BRACKISH - Class 210
BRAKE - Classes 425, 475
BRAKE OR CLAMP - Class 225
BRAKE: - Class 477
BRAKE-SLIP - Class 701
BREAKDOWN - Classes 257, 438
BREAKDOWN POINT/VOLTAGE - Class 257
BREAKER, COLLOID SYSTEM; BREAKING, COLLOID SYSTEM - Class 516
BREAKOVER - Class 257
BREEDER MATERIAL - Class 376
BRIDGE - Classes 212, 351
BRIDGE (-WALL) - Class 065
BRINE - Class 210
BRIQUET - Class 044
BROWNIAN MOTION - Class 977
BRUSH - Class 388
BSD - Class 438
BSE - Class 438
BSG - Class 438
BSQ - Class 438
BST - Class 438
BUCKET BRIGADE DEVICE - Class 257
BUCKLE(*) - Class 024
BUCKMINSTERFULLERENE or BUCKYBALL - Class 977
BUFFER - Class 725
BULK DEPOSITION OF PARTICULATE MATERIAL - Class 156
BULK MATERIAL - Class 425
BULK-CHANNEL CCD - Class 257
BULK-EFFECT DEVICE - Class 257
BUMP CONTACT - Class 257
BURIED CHANNEL CCD - Class 257
BURNABLE POISON - Class 376
BURNER - Class 431
BURNER ASSEMBLY - Class 431
BURNER HEAD - Class 431
BURST - Class 348
BUS - Classes 345, 709, 710, 711, 712, 713, 714, 718, 719
BY-PRODUCT MATERIALS - Class 376