salicide - Class 438
SAFETY ELEMENT or ROD - Class 376
SAFETY-CATCH LINKER - Class 506
SAG - Class 438
SAM (SELF-ASSEMBLED MONOLAYER) - Class 977
SAMPLE - Class 073
SAMPLING SYSTEM - Class 073
SAND MOLD - Class 164
SAND TEMPERING - Class 164
SATELLITE - Class 725
SATURABLE REACTOR - Class 330
SATURATED - Class 520
SATURATION - Class 257
SAW - Class 438
SBD - Class 438
SBH - Class 438
SBS - Class 438
SCANNING - Classes 343, 348
SCANNING PROBE MICROSCOPE - Class 977
SCANNING TUNNELING MICROSCOPE (STM) - Class 977
SCATTERING CENTERS - Class 257
SCAVENGER - Class 164
SCAVENGING - Class 431
SCCM - Class 438
SCENE - Class 396
SCHOTTKY BARRIER - Class 257
SCHOTTKY DIODE - Class 257
SCHOTTKY JUNCTION - Class 117
SCM - Class 438
SCR - Class 438
SCRAM ROD - Class 376
SCRAMBLE - Class 725
SCRAP - Class 075
SCREED - Class 425
SCREEN - Classes 353, 460
SCREEN GRID - Class 330
SCREENING - Class 506
SDFL - Class 438
SDHT - Class 438
S-DIP - Class 438
SEAL - Class 070
SEAM - Class 053
SECOND CLASS CONDUCTORS - Class 313
SECONDARY CELL OR BATTERY - Class 320
SECONDARY EMISSION ELECTRONIC OR VACUUM TUBE - Class 330
SECONDARY EMISSIVE CATHODE - Class 313
SECONDARY EMISSIVE ELECTRODE - Class 330
SECURITY - Classes 710, 712, 713, 714
SEED - Classes 099, 117, 438
SEG - Class 438
SEGREGATION - Class 164
SEIGNETTE"S SALT - Class 117
SEL - Class 438
SELECTED WAVELENGTH MODIFIER - Class 362
SELECTION - Class 234
SELF-ASSEMBLY - Class 977
SELF-COMMUTATED IMPULSE OR RELUCTANCE MOTORS - Class 318
SELFOX - Class 438
SELF-SUSTAINING - Class 425
SEM - Class 438
SEMICONDUCTOR - Classes 257, 330, 338, 363, 372, 438
SEMICONDUCTOR ACTIVE ELEMENT - Class 331
SEMICONDUCTOR AMPLIFYING DEVICE - Class 330
SEMICONDUCTOR DEVICE - Classes 117, 257
SEMICONDUCTOR JUNCTION - Classes 117, 438
SEMICONDUCTOR LASER - Classes 257, 372
SEMIPERMEABLE - Class 210
SEMIRIGID - Class 403
SEMIRIGID* - Class 024
SEOT - Class 438
SEPARABLE-FASTENER* - Class 024
SEPARATING - Class 460
SEPARATING APPARATUS - Classes 095, 096
SEPARATING DIGGERS - Class 171
SEPARATING MEDIUM (MEDIA) - Classes 095, 096
SEPARATOR - Classes 095, 096, 271, 429, 494
SEPARATOR ELEMENTS - Class 171
SEPARATORY DISTILLATION - Classes 201, 203
SEPOX - Class 438
SER - Class 438
SERIES MOTOR - Class 318
SERVER - Classes 709, 718, 719, 725
SETS - Class 425
SETTABLE MATERIAL - Class 052
SET-TOP BOX (STB) - Class 725
SEVER - Classes 072, 425
SFFT - Class 438
SGT - Class 438
SHAFT - Classes 175, 415
SHAFT (SEE SUSTAINER) - Class 052
SHAFT FURNACE - Class 075
SHAFT* - Class 187
SHAPING - Class 029
SHEARING - Class 083
SHEET - Classes 112, 281, 402, 428, 451, 462
SHEET RETAINER - Class 402
SHEET(*) - Class 412
SHELL - Class 099
SHELL MOLDING - Class 164
SHELLING - Class 460
SHIELD - Class 376
SHIELDS - Class 313
SHIFT (n.) - Class 234
SHIM - Class 376
SHOCK EXCITED RESONATOR OSCILLATOR - Class 331
SHUTDOWN - Class 431
SHUTTER - Classes 352, 396
SI - Class 438
Si - Class 438
SICOS - Class 438
SICP - Class 523
SIDE WALL - Class 092
SIEVE - Class 460
SIGNAL - Classes 330, 342, 343
SIGNAL ELECTRODE OR SIGNAL GRID - Class 330
SIGNAL FEEDBACK - Class 330
SIGNAL FEEDBACK PATH - Class 330
SIGNALING MEANS, ELECTRIC AND NONELECTRIC - Class 250
SIGNATURE(*) - Class 412
SILICON BILATERAL SWITCH (SBS) - Class 257
SILICON CONTROLLED RECTIFIER (SCR) - Class 257
SILICON CONTROLLED SWITCH (SCS) - Class 257
SILICON ON INSULATOR (SOI) - Classes 257, 438
SILICON ON SAPPHIRE (S0S) CMOS - Class 257
SILICON ON SAPPHIRE (SOS) CMOS - Class 438
SILICON TRANSISTOR - Class 257
SILICON-GATE FET - Class 257
SILO - Class 438
SIMILARITY - Class 704
SIMOX - Class 438
SIMPLE MOVEMENT - Class 269
SIMS - Class 438
SINGLE CRYSTAL - Classes 164, 257, 438
SINGLE-CRYSTAL - Class 117
SINGLE-IN-LINE PACKAGE - Class 257
SINKER - Classes 257, 438
SINTERING - Classes 065, 419, 425
SIP - Class 438
SIPOS - Class 438
SIS - Class 257
SIT - Class 438
SKIN - Class 099
SKIP (n.) - Class 234
SLAB - Class 144
SLAG - Classes 065, 164, 373
SLAVE - Class 060
SLIDE - Class 353
SLIDE-STILE - Class 049
SLIDING MOVEMENT OF CLOSURE - Class 049
SLINGER - Class 065
SLIP - Class 701
SLITTING - Classes 029, 234
SLM - Class 438
SLS - Class 438
SLT - Class 438
SLUDGE - Classes 210, 588
SLURRY - Class 376
SMOKE - Class 516
SMOOTHING - Class 065
SMT - Class 438
SNAPPING - Class 460
SOAP - Class 510
SOFTENED GLASS - Class 065
SOFTENING POINT - Class 065
SOG - Class 438
SOI - Classes 117, 438
SOIC - Class 438
SOJ - Class 438
SOL - Class 516
SOLAR CELL - Class 257
SOLID SORBENT - Classes 095, 096
SOLID STATE ACTIVE ELEMENT - Class 331
SOLID SUPPORT - Class 506
SOLID-PHASE SYNTHESIS - Class 506
SOLID-STATE - Class 326
SOLID-STATE DEVICE - Classes 257, 326, 438
SOLID-STATE IMAGING DEVICE - Class 348
SOLUTION TREATING - Class 148
SOLUTION-PHASE SYNTHESIS - Class 506
SOLVENT DYE - Class 008
Sone - Class 704
SORB - Class 502
SORB, SORBING - Class 210
SORBITAN - Class 516
SORBITAN FATTY ACID ESTERS - Class 516
SORBITOL - Class 516
SORPTION - Class 588
SOS - Classes 117, 438
SOURCE (SUPPLY SOURCE) - Class 221
SOURCE - Classes 073, 257, 438
SP - Class 523
SPACE CHARGE REGION - Classes 257, 438
SPACE DISCHARGE DEVICE - Class 331
SPACE-BAR - Class 400
SPALLATION - Class 376
SPARK PLUG - Class 313
SPATIAL CONTENT, DOMAIN - Class 348
SPE - Class 438
SPECIAL NUCLEAR MATERIAL - Class 376
SPECIAL TREATING CLASS - Class 426
SPECIAL TYPE CATEGORIES - Class 137
SPECIAL TYPES OF MOTORS: - Class 318
SPECIFIC LIGAND-RECEPTOR BINDING ASSAY - Class 435
SPECIFICALLY STRUCTURED - Class 502
SPECIFIED - Class 052
SPECIFIED INTERMEDIATE CONDENSATION PRODUCT (SICP) - Class 520
SPECIFIED MATERIAL - Class 520
SPECIFIED POLYMER-FORMING INGREDIENTS (SPFI) - Class 520
SPECTACLES - Class 351
SPECTRUM - Classes 356, 359, 372
SPEECH - Class 704
SPEED RATIO - Class 475
SPEED RATIO: - Class 477
SPFI - Class 523
SPIKING - Class 438
SPINE(*) - Class 412
SPINEL - Class 117
SPINNERET - Class 425
SPINNING - Classes 264, 425
SPIRO AND SPIRO RING SYSTEM - Class 514
SPIRO and SPIRO RING SYSTEM - Class 532
SPLITTER - Class 725
SPLITTING - Class 376
SPOT - Class 438
SPREADING AGENT* - Class 516
SPRUE - Class 164
SPT - Class 438
SPUD - Class 037
SPUR GEAR - Class 475
SQUID - Classes 438, 505
SRAM - Class 438
SRO - Class 438
SSDP - Class 438
SSI - Class 438
SST - Class 438
STABILIZATION - Class 331
STABILIZATION MEANS - Class 330
STACK - Class 221
STACK* - Class 414
STALK - Class 460
STARTING AND/OR STOPPING - Class 318
STATIC APPARATUS - Class 425
STATIC MOLD - Class 249
STATUS DATA - Classes 345, 707, 711, 714
STEAM - Class 122
STEAM DISTILLATION - Class 203
STEAM TUBES - Class 122
STEARIC ACID; STEARATE - Class 516
STEERING WHEEL - Class 180
STEM-END - Class 099
STEMMING - Classes 099, 460
STEP RECOVERY DIODE - Class 257
STEREOPTICON - Class 353
STEREOSCOPIC VISION - Class 351
STIFFENER - Class 052
STILL (VIDEO) - Class 725
STIRRER - Class 366
STIRRERS, PLURAL - Class 366
STITCHING(*) - Class 412
STOCK - Classes 072, 425
STOCK-MATERIAL - Class 428
STONE GATHERING - Class 171
STOOL - Class 164
STORAGE - Classes 234, 369
STORAGE MEDIUM - Class 369
STRAND - Classes 112, 226, 428
STRAND PORTION - Class 112
STRAND-PORTION - Class 428
STRAW - Class 460
STRAW WALKER - Class 460
STRESS RELIEVING OR STRESS RELIEF ANNEALING - Class 148
STRIP - Classes 112, 281, 283, 428, 462
STRIPPED of ORBITAL ELECTRONS - Class 376
STRIPPING LAYER - Class 430
STRUCTURAL - Class 256
Structural gene - Class 800
STRUCTURALLY DEFINED - Class 430
STRUCTURE - Class 330
STRUCTURE-TO-BE-SECURED* - Class 024
STT - Class 438
STYLESHEET - Class 715
SUBATOMIC PARTICLES - Class 376
SUBCRITICAL (FISSION) REACTOR - Class 376
SUBHET - Class 438
SUBLIMATION - Classes 201, 202, 203
SUB-MASTER-KEY - Class 070
SUBSCRIBER - Classes 379, 379, 725
SUBSIT - Class 438
SUBSTANCE - Class 516
SUBSTRATE - Classes 008, 117, 216, 257, 425, 428, 438
SUBSTRATE BIAS - Class 257
SUBSTRATE* - Class 349
SUBTRACTIVE COLOR - Class 430
SULFOXY - Classes 260, 510, 516
SULFUR DYE - Class 008
SUN GEAR - Class 475
SUPERCONDUCTING - Class 505
SUPERCONDUCTIVE - Class 505
SUPERCONDUCTIVITY - Class 505
SUPERLATTICE - Classes 117, 257, 438
SUPPLY HOLDER - Class 239
SUPPLY MEANS - Class 141
SUPPLY-MEANS - Class 401
SUPPORT - Classes 258, 401, 416
SUPPORT-CLAMP(*) - Class 024
SURFACE ACTIVE AGENT* - Class 516
SURFACE DEFORMATION - Classes 065, 425
SURFACE MOUNT DEVICES - Classes 257, 438
SURFACE RESISTIVITY - Classes 257, 438
SURFACE TENSION - Class 516
SURFACE-ACTIVE AGENT (Surfactant) - Class 510
SURFACE-CHANNEL CCD - Class 257
SURFACTANT - Class 516
SUSPENSION - Class 210
SUSTAINER - Classes 052, 249
SWAMI - Class 438
SWEEP - Class 164
SWEEPING - Class 343
SWINGING MOVEMENT OF CLOSURE: - Class 049
SWITCH - Classes 330, 725
SWNT (SINGLE-WALLED NANOTUBE) - Class 977
SYMBOL - Class 347
SYNC PULSE - Class 725
SYNCHRONIZATION - Classes 709, 718, 719
SYNCHRONOUS MOTOR - Class 318
SYNERESIS - Class 516
SYNONYMS - Class 075
SYNTHESIS - Class 204
SYNTHETIC - Class 210
SYSTEM - Classes 137, 141, 902