I ntron - Class 800
I2L - Class 438
IB - Class 438
IBD - Class 438
IC - Class 438
ICP - Class 438
IDENTIFIED - Class 430
IDENTIFIER - Class 902
IDENTIFYING - Class 506
IG - Class 438
IGBT - Class 438
IGFET - Class 438
IID - Class 438
IJP - Class 438
ILB - Class 438
ILD - Class 438
ILLUMINATING MEANS - Class 362
IMAGE - Classes 353, 355, 399, 430, 715
IMAGE ANALYSIS* - Class 382
IMAGE DATA - Classes 345, 715
IMAGE FORMER - Class 359
IMAGE RECORD - Class 430
IMAGE SENSOR - Class 348
IMAGE, LATENT - Classes 355, 399
IMAGE-BEARING MEMBER - Class 399
IMAGING - Classes 399, 430
IMAGING SYSTEM* - Class 382
IMHOFF - Class 210
IMMA - Class 438
IMMEDIATE-PRECURSOR - Class 117
IMMOBILIZE - Class 588
IMMUNOADSORBENT - Class 436
IMMUNOASSAY - Class 436
IMMUNOELECTROPHORESIS - Class 436
IMMUNOGLOBULIN - Class 436
IMPACT, MECHANICAL SHOCK, OR VIBRATION-PRODUCING MOTOR - Class 318
IMPACTING - Class 173
IMPACTING DEVICE - Class 173
IMPALING OR SNAGGING - Class 171
IMPATT - Class 438
IMPEDANCE - Classes 323, 363
IMPEDANCE MATCHING NETWORK - Classes 330, 333
IMPEDANCE OR IMPEDANCE DEVICE - Class 318
IMPELLER - Class 416
IMPLEMENT - Classes 015, 172, 249
IMPRESSION - Class 462
IMPURITY - Classes 257, 438
IN SILICO LIBRARY - Class 506
IN SITU - Classes 249, 425
INACCESSIBLE HOLE - Class 175
INCANDESCENT LAMP - Class 313
INCINERATE - Class 588
INCINERATION - Class 110
INCLUDING HYDROGENATED - Classes 514, 532
INCLUSION COMPOUNDS - Class 532
INCLUSIONS - Class 164
INDEFINITE LENGTH WORK - Classes 156, 264, 425
INDETERMINATE LENGTH - Class 226
INDICATOR - Class 334
INDICIUM - Class 234
INDIRECT BAND GAP SEMICONDUCTOR - Classes 257, 438
INDIRECTLY HEATED CATHODE (equiptential cathode) - Class 330
INDIRECTLY-HEATED CATHODE (Equipotential cathode) - Class 313
INDUCED NUCLEAR REACTION - Class 376
INDUCTANCE - Class 334
INDUCTION HEATING - Class 373
INDUCTION MOTORS - Class 318
INDUCTIVE COUPLING - Class 336
INDUCTOR - Classes 334, 336
INERT GASES - Class 423
INERT MATERIAL - Class 210
INFEED - Class 408
IN-FOCUS - Class 396
INFORMATION - Classes 345, 706, 707, 709, 710, 711, 712, 713, 714, 715
iNFORMATION - Class 718
INFORMATION - Classes 719, 726
INFORMATION OR INFORMATION SIGNAL - Class 369
INGOT - Classes 164, 373
INGOT MOLD - Class 164
INGREDIENT - Class 426
INITIAL WRAP - Class 053
INJECTING - Class 060
INJECTION NOZZLE - Class 239
INK - Class 400
INORGANIC - Class 216
INORGANIC COMPOUND - Class 516
INPUT CIRCUIT - Class 323
INPUT CIRCUIT OR COUPLING - Class 330
INPUT MEMBER - Class 475
INPUT SHAFT: - Class 477
INPUT-IMPULSE - Class 234
INPUT-MEANS - Class 234
INPUT-OUTPUT COUPLING - Class 385
INS - Class 438
INSPECTION - Class 250
INSPECTION OR EXAMINATION - Class 378
INSTRUCTION DATA - Classes 345, 707, 711, 714
INSULATED-GATE FIELD EFFECT TRANSISTOR (IGFET) - Classes 257, 438
INSULATOR - Classes 257, 338, 438
INTEGRATED APPARATUS - Class 506
INTEGRATED CIRCUIT - Class 257
INTERCALATES - Class 532
INTERELECTRODE CAPACITANCE - Class 330
INTERELECTRODE IMPEDANCE - Class 330
INTERFACE - Classes 709, 718, 719
INTERFACIAL BOND - Class 425
INTERFERENCE - Classes 359, 372
INTERMEDIATE FREQUENCY (IF) - Class 725
INTERMEDIATE NEUTRONS - Class 376
INTERMEDIATE-ARTICLE - Class 428
INTERNAL BATTERY - Class 204
INTERPOSER - Class 234
INTERPUPILLARY DISTANCE - Class 351
INTERSTAGE CIRCUIT OR COUPLING - Class 330
INTRINSIC CONCENTRATION - Classes 257, 438
INTRINSIC CONDUCTIVITY - Class 330
INTRINSIC SEMICONDUCTOR - Class 257
INVERSION - Classes 257, 438
INVERSION LAYER/CHANNEL - Class 257
INVERSION LAYER/CHANNEL - Class 438
INVESTMENT PATTERN - Class 164
ION - Class 250
ION EXCHANGE - Class 423
IONIC CATHODE - Class 313
IONIZATION - Class 250
IONIZED - Class 376
IR - Class 438
IRON GROUP - Class 075
IRON GROUP METALS - Classes 257, 423
ISFET - Class 438
ISOELECTRONIC - Class 438
ISOLATED TRIGLYCERIDIC FAT OR OIL - Class 426
ISOLATION - Classes 257, 438
ISOPLANAR CMOS - Classes 257, 438
ISOPLANAR ISOLATION - Classes 257, 438
ITERATIVE DECONVOLUTION - Class 506
ITO - Class 438
IVEC - Class 438