U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

Patenting By Geographic Region (State and Country), Breakout By Technology Class
Count of 1996 - 2000 Utility Patent Grants By Calendar Year of Grant

[Explanation of Data]

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period
Originating From

UNITED STATES, ALL REGIONS

(patent origin is determined by the residence of the first-named inventor)

(technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data')
 
Class Class Title 1996 1997 1998 1999 2000 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 2565 3648 3977 4186 3875 18251
435 Chemistry: Molecular Biology and Microbiology 1401 1975 2693 2723 2324 11116
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1551 1424 1535 1598 1559 7667
532 Organic Compounds (includes Classes 532-570) 1334 1427 1550 1566 1400 7277
128 Surgery (includes Class 600) 1081 1077 1625 1502 1702 6987
428 Stock Material or Miscellaneous Articles 1117 1197 1383 1473 1307 6477
438 Semiconductor Device Manufacturing: Process 552 746 935 1477 1994 5704
606 Surgery (instruments) 768 1004 1161 1314 1274 5521
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 659 735 1171 1126 1173 4864
604 Surgery (Medicators and Receptors) 879 843 1135 1012 872 4741
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 623 606 948 1035 1094 4306
073 Measuring and Testing 814 739 896 814 825 4088
340 Communications: Electrical 590 672 837 854 912 3865
370 Multiplex Communications 518 480 657 802 1091 3548
210 Liquid Purification or Separation 685 681 699 719 723 3507
361 Electricity: Electrical Systems and Devices 570 504 838 762 797 3471
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 346 391 872 961 890 3460
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 309 308 860 911 1033 3421
280 Land Vehicles 673 528 701 700 805 3407
439 Electrical Connectors 487 565 622 757 973 3404
359 Optics: Systems (Including Communication) and Elements 516 517 719 787 824 3363
455 Telecommunications 444 373 652 823 1051 3343
052 Static Structures (e.g., Buildings) 529 574 707 700 713 3223
029 Metal Working 556 571 681 650 690 3148
710 Input/Output (Electrical Computers and Digital Processing Systems) 399 457 743 786 748 3133
365 Static Information Storage and Retrieval 414 446 613 785 781 3039
324 Electricity: Measuring and Testing 717 538 545 543 664 3007
379 Telephonic Communications 497 436 701 744 619 2997
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 466 521 618 631 594 2830
375 Pulse or Digital Communications 430 440 610 632 679 2791
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 494 454 562 620 655 2785
714 Error Detection/Correction and Fault Detection/Recovery 454 446 642 640 591 2773
250 Radiant Energy 573 488 608 507 537 2713
206 Special Receptacle or Package 465 450 604 592 536 2647
711 Memory (Electrical Computers and Digital Processing Systems) 350 410 609 620 647 2636
427 Coating Processes 438 475 547 578 570 2608
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 423 452 563 477 499 2414
382 Image Analysis 260 323 629 609 589 2410
473 Games Using Tangible Projectile 458 449 568 479 419 2373
356 Optics: Measuring and Testing 347 375 538 526 543 2329
248 Supports (e.g., for holding articles, etc.) 357 355 544 516 541 2313
360 Dynamic Magnetic Information Storage or Retrieval 299 324 502 530 598 2253
137 Fluid Handling 369 314 458 552 541 2234
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 377 278 484 501 582 2222
426 Food or Edible Material: Processes, Compositions, and Products 399 329 365 518 561 2172
062 Refrigeration 378 388 418 452 454 2090
713 Support (Electrical Computers and Digital Processing Systems) 243 291 501 525 508 2068
123 Internal-Combustion Engines 409 383 399 390 473 2054
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 237 368 530 478 406 2019
385 Optical Waveguides 304 367 448 455 444 2018
219 Electric Heating 288 281 414 457 575 2015
002 Apparel 320 335 404 473 442 1974
362 Illumination 329 311 381 388 494 1903
348 Television 352 294 419 401 434 1900
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 115 194 397 555 608 1869
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 216 279 489 483 376 1843
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 332 297 378 426 385 1818
222 Dispensing (apparatus and process) 295 270 349 504 380 1798
015 Brushing, Scrubbing, and General Cleaning 309 241 353 394 388 1685
347 Incremental Printing of Symbolic Information 217 250 413 342 453 1675
607 Surgery: Light, Thermal, and Electrical Application 251 245 406 364 397 1663
297 Chairs and Seats 306 278 338 350 383 1655
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 178 201 339 458 416 1592
482 Exercise Devices 279 311 339 319 308 1556
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 247 236 308 329 407 1527
702 DP: Measuring, Calibrating, or Testing (Data Processing) 249 222 346 349 345 1511
060 Power Plants 273 246 331 296 335 1481
239 Fluid Sprinkling, Spraying, and Diffusing 194 218 316 352 389 1469
414 Material or Article Handling 297 243 263 301 355 1459
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 257 185 307 326 382 1457
220 Receptacles 259 220 323 329 307 1438
700 DP: Generic Control Systems or Specific Applications (Data Processing) 247 205 372 312 278 1414
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 309 205 270 320 304 1408
296 Land Vehicles: Bodies and Tops 206 173 273 334 377 1363
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 219 185 333 325 291 1353
204 Chemistry: Electrical and Wave Energy 218 223 234 328 349 1352
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 286 264 229 247 315 1341
119 Animal Husbandry 220 222 336 299 260 1337
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 219 182 264 318 353 1336
451 Abrading 199 235 237 302 348 1321
310 Electrical Generator or Motor Structure 178 187 297 312 316 1290
436 Chemistry: Analytical and Immunological Testing 217 215 295 307 252 1286
252 Compositions 221 238 284 274 267 1284
358 Facsimile and Static Presentation Processing 264 250 287 240 243 1284
134 Cleaning and Liquid Contact with Solids 196 212 260 344 267 1279
053 Package Making 243 278 288 233 231 1273
326 Electronic Digital Logic Circuitry 245 196 213 252 353 1259
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 189 157 212 336 358 1252
174 Electricity: Conductors and Insulators 209 195 293 256 292 1245
273 Amusement Devices: Games 246 238 280 241 233 1238
074 Machine Element or Mechanism 238 180 258 276 263 1215
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 99 188 311 312 284 1194
005 Beds 252 212 224 233 262 1183
244 Aeronautics 154 159 290 275 298 1176
433 Dentistry 187 176 316 262 232 1173
224 Package and Article Carriers 214 222 265 244 206 1151
399 Electrophotography 258 177 284 253 178 1150
211 Supports: Racks 189 212 253 247 235 1136
106 Compositions: Coating or Plastic 213 204 285 234 199 1135
318 Electricity: Motive Power Systems 196 184 240 247 268 1135
343 Communications: Radio Wave Antennas 165 153 174 307 321 1120
405 Hydraulic and Earth Engineering 260 187 238 238 185 1108
341 Coded Data Generation or Conversion 178 237 247 217 228 1107
417 Pumps 218 175 170 222 312 1097
372 Coherent Light Generators 165 171 257 238 246 1077
043 Fishing, Trapping, and Vermin Destroying 227 147 156 287 232 1049
423 Chemistry of Inorganic Compounds 218 181 204 233 207 1043
004 Baths, Closets, Sinks, and Spittoons 150 154 221 275 236 1036
118 Coating Apparatus 169 174 198 210 282 1033
315 Electric Lamp and Discharge Devices: Systems 194 150 210 222 251 1027
717 DP: Software Development, Installation, and Management (Data Processing) 98 91 218 321 286 1014
242 Winding, Tensioning, or Guiding 175 165 217 224 215 996
114 Ships 195 194 188 190 224 991
434 Education and Demonstration 157 137 215 211 229 949
396 Photography 175 163 239 197 160 934
381 Electrical Audio Signal Processing Systems and Devices 142 174 260 171 186 933
363 Electric Power Conversion Systems 127 184 181 213 208 913
313 Electric Lamp and Discharge Devices 160 154 210 198 188 910
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 151 141 170 209 231 902
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 100 160 206 220 190 876
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 166 174 193 173 167 873
708 Arithmetic Processing and Calculating (Electrical Computers) 128 134 219 205 185 871
072 Metal Deforming 158 175 192 195 150 870
099 Foods and Beverages: Apparatus 171 168 166 176 181 862
198 Conveyors: Power-Driven 160 149 144 202 200 855
378 X-Ray or Gamma Ray Systems or Devices 156 144 167 155 224 846
033 Geometrical Instruments 177 135 183 155 191 841
446 Amusement Devices: Toys 144 93 172 177 249 835
030 Cutlery 151 119 183 192 188 833
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 153 153 159 201 164 830
084 Music 137 123 165 201 203 829
285 Pipe Joints or Couplings 181 116 193 166 153 809
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 137 142 192 169 169 809
294 Handling: Hand and Hoist-Line Implements 149 132 185 161 174 801
330 Amplifiers 112 122 142 188 232 796
040 Card, Picture, or Sign Exhibiting 128 131 152 186 196 793
070 Locks 116 137 210 181 145 789
307 Electrical Transmission or Interconnection Systems 121 155 153 203 157 789
200 Electricity: Circuit Makers and Breakers 145 133 189 159 146 772
162 Paper Making and Fiber Liberation 142 137 172 145 174 770
101 Printing 135 122 188 170 154 769
312 Supports: Cabinet Structure 140 132 160 167 167 766
081 Tools 142 91 124 192 214 763
024 Buckles, Buttons, Clasps, Etc. 114 158 164 163 161 760
165 Heat Exchange 151 113 166 159 158 747
132 Toilet 92 89 175 227 157 740
180 Motor Vehicles 137 93 145 164 200 739
602 Surgery: Splint, Brace, or Bandage 111 109 184 167 167 738
367 Communications, Electrical: Acoustic Wave Systems and Devices 163 141 160 119 153 736
175 Boring or Penetrating the Earth 124 110 142 172 182 730
323 Electricity: Power Supply or Regulation Systems 106 150 152 160 151 719
083 Cutting 95 100 165 185 165 710
034 Drying and Gas or Vapor Contact with Solids 129 119 132 152 177 709
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 126 120 121 165 170 702
369 Dynamic Information Storage or Retrieval 132 121 147 141 161 702
351 Optics: Eye Examining, Vision Testing and Correcting 116 100 150 167 168 701
148 Metal Treatment 133 110 154 150 145 692
320 Electricity: Battery or Capacitor Charging or Discharging 88 130 120 159 189 686
725 Interactive Video Distribution Systems 120 113 173 176 102 684
251 Valves and Valve Actuation 113 101 134 152 182 682
585 Chemistry of Hydrocarbon Compounds 136 107 139 152 142 676
056 Harvesters 114 85 149 162 160 670
229 Envelopes, Wrappers, and Paperboard Boxes 117 102 148 152 145 664
036 Boots, Shoes, and Leggings 77 109 156 164 149 655
228 Metal Fusion Bonding 113 113 104 134 178 642
292 Closure Fasteners 141 135 114 105 143 638
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 103 113 144 142 135 637
047 Plant Husbandry 137 97 105 123 169 631
208 Mineral Oils: Processes and Products 97 107 106 174 146 630
241 Solid Material Comminution or Disintegration 127 119 121 154 106 627
188 Brakes 139 97 113 152 119 620
277 Seal for a Joint or Juncture 141 103 104 128 144 620
108 Horizontally Supported Planar Surfaces 125 116 102 131 134 608
160 Flexible or Portable Closure, Partition, or Panel 105 107 126 110 160 608
333 Wave Transmission Lines and Networks 97 77 141 140 136 591
126 Stoves and Furnaces 96 98 109 143 138 584
095 Gas Separation: Processes 93 95 127 133 129 577
403 Joints and Connections 111 114 140 90 120 575
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 99 113 137 110 112 571
216 Etching a Substrate: Processes 88 106 128 118 126 566
366 Agitating (e.g., of articles and materials) 110 101 115 126 106 558
182 Fire Escape, Ladder, or Scaffold 79 82 110 142 130 543
049 Movable or Removable Closures 120 92 92 110 128 542
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 124 97 116 107 98 542
380 Cryptography 82 106 140 91 121 540
415 Rotary Kinetic Fluid Motors or Pumps 133 94 98 89 124 538
463 Amusement Devices: Games 62 72 146 120 135 535
331 Oscillators 98 97 112 103 123 533
016 Miscellaneous Hardware 95 92 125 107 101 520
706 DP: Artificial Intelligence (Data Processing) 72 112 171 79 84 518
192 Clutches and Power-Stop Control 101 96 81 135 103 516
504 Plant Protecting and Regulating Compositions 102 137 89 105 82 515
431 Combustion 86 78 85 138 125 512
215 Bottles and Jars 72 87 110 134 106 509
400 Typewriting Machines 88 73 119 124 100 504
124 Mechanical Guns and Projectors 98 120 97 99 87 501
349 Liquid Crystal Cells, Elements and Systems 96 79 98 108 108 489
209 Classifying, Separating, and Assorting Solids 89 72 90 121 115 487
416 Fluid Reaction Surfaces (i.e., Impellers) 100 82 86 87 122 477
065 Glass Manufacturing 63 94 111 130 77 475
138 Pipes and Tubular Conduits 67 59 88 134 126 474
042 Firearms 80 111 120 95 59 465
102 Ammunition and Explosives 91 94 107 89 84 465
271 Sheet Feeding or Delivering 94 95 63 105 97 454
404 Road Structure, Process, or Apparatus 97 76 72 103 103 451
384 Bearings 120 69 91 101 68 449
221 Article Dispensing 93 70 99 103 83 448
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 94 74 68 114 93 443
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 77 55 81 127 97 437
283 Printed Matter 60 61 104 112 97 434
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 80 62 104 75 107 428
055 Gas Separation 51 60 124 90 100 425
376 Induced Nuclear Reactions: Processes, Systems, and Elements 112 84 109 79 39 423
454 Ventilation 61 73 98 81 103 416
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 61 77 88 96 91 413
181 Acoustics 65 62 88 98 100 413
164 Metal Founding 95 76 80 97 55 403
475 Planetary Gear Transmission Systems or Components 64 64 65 102 106 401
501 Compositions: Ceramic 112 80 71 70 66 399
172 Earth Working 76 64 87 74 90 391
374 Thermal Measuring and Testing 34 76 119 53 101 383
401 Coating Implements with Material Supply 43 35 56 130 111 375
254 Implements or Apparatus for Applying Pushing or Pulling Force 53 65 64 96 96 374
135 Tent, Canopy, Umbrella, or Cane 57 77 85 74 71 364
440 Marine Propulsion 68 66 74 71 84 363
383 Flexible Bags 53 45 63 92 107 360
096 Gas Separation: Apparatus 59 79 73 77 67 355
269 Work Holders 62 50 68 81 91 352
037 Excavating 73 50 55 79 91 348
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 56 58 86 92 48 340
227 Elongated-Member-Driving Apparatus 76 75 68 68 52 339
044 Fuel and Related Compositions 73 58 71 53 70 325
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 54 57 64 68 81 324
144 Woodworking 51 60 67 74 70 322
601 Surgery: Kinesitherapy 59 47 92 57 64 319
408 Cutting by Use of Rotating Axially Moving Tool 42 58 87 84 45 316
441 Buoys, Rafts, and Aquatic Devices 56 60 68 65 60 309
303 Fluid-Pressure and Analogous Brake Systems 68 50 56 56 78 308
261 Gas and Liquid Contact Apparatus 62 50 52 70 70 304
089 Ordnance 45 57 75 58 54 289
392 Electric Resistance Heating Devices 37 41 63 68 78 287
588 Hazardous or Toxic Waste Destruction or Containment 74 65 55 50 42 286
112 Sewing 84 58 47 52 42 283
418 Rotary Expansible Chamber Devices 57 35 42 30 118 282
223 Apparel Apparatus 43 59 40 65 73 280
110 Furnaces 58 58 81 31 39 267
267 Spring Devices 46 43 44 57 72 262
445 Electric Lamp or Space Discharge Component or Device Manufacturing 37 51 44 61 68 261
474 Endless Belt Power Transmission Systems or Components 44 50 58 44 61 257
368 Horology: Time Measuring Systems or Devices 41 50 60 62 43 256
452 Butchering 60 36 45 49 66 256
131 Tobacco 43 44 72 51 44 254
100 Presses 47 45 68 53 40 253
410 Freight Accommodation On Freight Carrier 38 36 48 52 79 253
386 Television Signal Processing for Dynamic Recording or Reproducing 49 46 50 46 57 248
355 Photocopying 22 49 55 60 57 243
092 Expansible Chamber Devices 45 52 56 57 32 242
301 Land Vehicles: Wheels and Axles 50 37 54 41 58 240
409 Gear Cutting, Milling, or Planing 32 54 47 45 61 239
105 Railway Rolling Stock 54 46 58 29 42 229
136 Batteries: Thermoelectric and Photoelectric 40 24 29 53 81 227
169 Fire Extinguishers 36 35 33 56 65 225
507 Earth Boring, Well Treating, and Oil Field Chemistry 26 57 49 46 47 225
149 Explosive and Thermic Compositions or Charges 55 35 42 30 56 218
152 Resilient Tires and Wheels 38 38 48 42 52 218
505 Superconductor Technology: Apparatus, Material, Process 47 41 39 57 33 217
116 Signals and Indicators 47 41 31 42 44 205
419 Powder Metallurgy Processes 46 29 42 51 36 204
432 Heating 25 32 44 62 39 202
051 Abrasive Tool Making Process, Material, or Composition 58 51 29 32 31 201
203 Distillation: Processes, Separatory 37 40 54 38 32 201
104 Railways 42 54 38 33 33 200
256 Fences 33 40 43 37 47 200
472 Amusement Devices 36 36 48 37 41 198
111 Planting 42 39 29 44 43 197
266 Metallurgical Apparatus 47 30 39 35 43 194
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 30 40 44 34 45 193
281 Books, Strips, and Leaves 24 37 37 48 40 186
082 Turning (e.g., for metal working) 23 39 46 48 29 185
122 Liquid Heaters and Vaporizers 36 22 48 33 45 184
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 40 30 39 46 27 182
236 Automatic Temperature and Humidity Regulation 40 29 34 38 40 181
336 Inductor Devices 33 24 45 35 44 181
194 Check-Actuated Control Mechanisms 32 28 29 46 45 180
338 Electrical Resistors 30 27 35 49 39 180
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 32 42 36 32 38 180
177 Weighing Scales 16 37 47 51 28 179
477 Interrelated Power Delivery Controls, Including Engine Control 38 25 32 31 53 179
337 Electricity: Electrothermally or Thermally Actuated Switches 22 30 42 50 34 178
353 Optics: Image Projectors 36 38 42 38 23 177
068 Textiles: Fluid Treating Apparatus 34 29 34 34 26 157
063 Jewelry 29 41 28 25 30 153
173 Tool Driving or Impacting 30 34 30 28 31 153
184 Lubrication 43 27 27 19 36 152
279 Chucks or Sockets 28 11 41 42 26 148
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 20 24 30 30 41 145
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 25 25 24 26 41 141
406 Conveyors: Fluid Current 34 24 30 26 26 140
494 Imperforate Bowl: Centrifugal Separators 36 21 24 31 28 140
249 Static Molds 24 29 35 26 22 136
071 Chemistry: Fertilizers 26 28 34 28 19 135
066 Textiles: Knitting 24 25 22 24 34 129
091 Motors: Expansible Chamber Type 28 20 34 23 19 124
007 Compound Hand Tools 22 16 25 32 28 123
246 Railway Switches and Signals 28 28 33 10 23 122
139 Textiles: Weaving 24 21 21 21 33 120
299 Mining or In Situ Disintegration of Hard Material 21 24 30 21 24 120
322 Electricity: Single Generator Systems 30 24 24 17 24 119
212 Traversing Hoists 16 24 20 27 30 117
057 Textiles: Spinning, Twisting, and Twining 16 26 37 17 18 114
407 Cutters, for Shaping 16 20 22 26 26 110
450 Foundation Garments 7 16 19 29 39 110
290 Prime-Mover Dynamo Plants 8 7 29 25 40 109
226 Advancing Material of Indeterminate Length 14 9 33 27 25 108
014 Bridges 17 18 23 24 24 106
270 Sheet-Material Associating 28 30 25 12 10 105
232 Deposit and Collection Receptacles 18 23 22 24 13 100
460 Crop Threshing or Separating 25 13 22 24 16 100
190 Trunks and Hand-Carried Luggage 20 15 17 23 24 99
027 Undertaking 16 24 21 15 20 96
125 Stone Working 15 11 19 24 27 96
420 Alloys or Metallic Compositions 20 20 14 24 17 95
048 Gas: Heating and Illuminating 15 27 22 14 15 93
140 Wireworking 21 17 22 16 17 93
225 Severing by Tearing or Breaking 23 12 26 23 9 93
373 Industrial Electric Heating Furnaces 18 6 9 31 27 91
305 Wheel Substitutes for Land Vehicles 10 10 20 17 31 88
178 Telegraphy 26 13 20 19 7 85
202 Distillation: Apparatus 21 19 16 13 15 84
038 Textiles: Ironing or Smoothing 18 13 21 16 11 79
076 Metal Tools and Implements, Making 19 15 16 10 19 79
127 Sugar, Starch, and Carbohydrates 13 12 23 21 10 79
028 Textiles: Manufacturing 16 12 12 17 20 77
001 ** Classification Undetermined ** 1 7 23 26 18 75
054 Harness (for animals) 9 10 21 9 26 75
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 15 12 24 14 10 75
293 Vehicle Fenders 12 16 14 17 16 75
150 Purses, Wallets, and Protective Covers 14 7 17 15 19 72
213 Railway Draft Appliances 19 12 13 14 12 70
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 10 4 12 16 26 68
332 Modulators 17 10 14 17 9 67
298 Land Vehicles: Dumping 16 5 15 11 19 66
109 Safes, Bank Protection, or a Related Device 10 18 13 15 9 65
237 Heating Systems 8 9 15 16 15 63
352 Optics: Motion Pictures 13 13 12 17 6 61
238 Railways: Surface Track 18 7 14 9 12 60
329 Demodulators 12 12 12 9 11 56
412 Bookbinding: Process and Apparatus 6 15 11 7 15 54
026 Textiles: Cloth Finishing 10 10 10 13 10 53
019 Textiles: Fiber Preparation 5 11 11 13 12 52
388 Electricity: Motor Control Systems 8 11 10 12 11 52
492 Roll or Roller 6 9 17 13 7 52
193 Conveyors, Chutes, Skids, Guides, and Ways 6 9 3 14 19 51
346 Recorders 6 1 9 16 19 51
512 Perfume Compositions 15 9 8 5 14 51
453 Coin Handling 18 4 7 9 12 50
059 Chain, Staple, and Horseshoe Making 5 10 10 9 9 43
086 Ammunition and Explosive-Charge Making 5 10 12 6 6 39
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 3 7 10 11 7 38
483 Tool Changing 1 10 7 10 9 37
186 Merchandising 9 5 9 4 8 35
087 Textiles: Braiding, Netting, and Lace Making 3 6 9 11 5 34
012 Boot and Shoe Making 8 4 8 11 2 33
191 Electricity: Transmission To Vehicles 6 11 7 3 6 33
168 Farriery 5 8 6 3 9 31
300 Brush, Broom, and Mop Making 6 9 6 9 0 30
157 Wheelwright Machines 6 2 2 7 10 27
289 Knots and Knot Tying 4 9 2 7 5 27
413 Sheet Metal Container Making 4 5 5 5 5 24
476 Friction Gear Transmission Systems or Components 9 4 2 4 4 23
201 Distillation: Processes, Thermolytic 1 5 7 3 2 18
159 Concentrating Evaporators 4 2 5 2 1 14
171 Unearthing Plants or Buried Objects 3 2 3 0 6 14
023 Chemistry: Physical Processes 1 1 6 1 3 12
185 Motors: Spring, Weight, or Animal Powered 0 2 1 4 4 11
217 Wooden Receptacles 2 0 3 4 2 11
462 Books, Strips, and Leaves for Manifolding 2 1 2 2 2 9
196 Mineral Oils: Apparatus 1 2 3 1 1 8
449 Bee Culture (propagating, raising, caring for bees) 2 2 2 1 1 8
142 Wood Turning 2 1 0 2 2 7
260 Chemistry of Carbon Compounds 1 3 2 0 1 7
295 Railway Wheels and Axles 1 2 0 3 1 7
291 Track Sanders 3 0 0 0 1 4
334 Tuners 0 0 0 3 1 4
069 Leather Manufactures 2 0 0 1 0 3
231 Whips and Whip Apparatus 0 0 0 0 3 3
079 Button Making 0 0 0 1 1 2
163 Needle and Pin Making 0 1 0 0 1 2
245 Wire Fabrics and Structure 0 0 1 0 1 2
147 Coopering 0 0 1 0 0 1
ALL ALL CLASSES 61104 61707 80291 83905 85072 372079



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tel: (703) 306-2600
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Last Modified: April 30, 2001