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 1997 - 2001 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 1997 1998 1999 2000 2001 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 3648 3976 4188 3877 4176 19865
435 Chemistry: Molecular Biology and Microbiology 1975 2693 2721 2325 2602 12316
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1425 1535 1597 1556 1668 7781
438 Semiconductor Device Manufacturing: Process 746 935 1477 1999 2447 7604
128 Surgery (includes Class 600) 1077 1627 1505 1702 1539 7450
532 Organic Compounds (includes Classes 532-570) 1427 1550 1566 1401 1461 7405
428 Stock Material or Miscellaneous Articles 1196 1383 1472 1311 1319 6681
606 Surgery (instruments) 994 1146 1294 1251 1091 5776
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 709 1149 1107 1153 1248 5366
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 606 948 1035 1094 1231 4914
604 Surgery (Medicators and Receptors) 843 1135 1013 877 926 4794
340 Communications: Electrical 686 863 879 957 871 4256
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 311 867 912 1031 1111 4232
370 Multiplex Communications 485 659 807 1095 1120 4166
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 416 893 989 910 951 4159
073 Measuring and Testing 739 896 814 823 803 4075
439 Electrical Connectors 565 622 757 973 884 3801
361 Electricity: Electrical Systems and Devices 505 840 762 798 863 3768
455 Telecommunications 347 626 794 1008 937 3712
359 Optics: Systems (Including Communication) and Elements 517 719 787 820 857 3700
210 Liquid Purification or Separation 681 699 719 722 734 3555
280 Land Vehicles 528 701 700 807 811 3547
052 Static Structures (e.g., Buildings) 574 706 699 713 769 3461
365 Static Information Storage and Retrieval 446 613 786 781 818 3444
710 Input/Output (Electrical Computers and Digital Processing Systems) 458 734 785 746 651 3374
029 Metal Working 572 681 650 688 735 3326
379 Telephonic Communications 437 700 744 617 681 3179
324 Electricity: Measuring and Testing 538 544 542 665 817 3106
375 Pulse or Digital Communications 441 610 631 679 684 3045
711 Memory (Electrical Computers and Digital Processing Systems) 411 609 619 647 754 3040
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 521 618 631 595 593 2958
714 Error Detection/Correction and Fault Detection/Recovery 447 641 641 592 630 2951
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 453 561 621 656 642 2933
382 Image Analysis 323 629 611 591 741 2895
250 Radiant Energy 488 608 507 535 680 2818
427 Coating Processes 475 547 578 562 506 2668
206 Special Receptacle or Package 450 604 592 536 455 2637
360 Dynamic Magnetic Information Storage or Retrieval 324 502 531 598 603 2558
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 452 563 478 499 530 2522
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 278 484 501 581 678 2522
137 Fluid Handling 314 458 552 543 589 2456
385 Optical Waveguides 367 448 455 444 718 2432
713 Support (Electrical Computers and Digital Processing Systems) 291 503 525 511 575 2405
248 Supports (e.g., for holding articles, etc.) 355 544 516 542 438 2395
356 Optics: Measuring and Testing 375 538 526 545 375 2359
473 Games Using Tangible Projectile 449 568 479 419 416 2331
219 Electric Heating 281 414 457 575 579 2306
426 Food or Edible Material: Processes, Compositions, and Products 329 365 518 561 525 2298
062 Refrigeration 388 418 452 454 562 2274
123 Internal-Combustion Engines 383 399 390 473 623 2268
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 368 530 478 405 390 2171
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 195 397 556 607 398 2153
362 Illumination 311 382 388 494 540 2115
347 Incremental Printing of Symbolic Information 250 413 342 453 607 2065
002 Apparel 335 404 473 442 392 2046
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 278 490 484 377 381 2010
348 Television 294 420 401 433 421 1969
222 Dispensing (apparatus and process) 270 349 504 380 410 1913
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 297 378 426 385 410 1896
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 247 325 350 430 516 1868
607 Surgery: Light, Thermal, and Electrical Application 245 406 363 397 442 1853
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 201 339 459 417 404 1820
015 Brushing, Scrubbing, and General Cleaning 241 353 394 388 292 1668
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 185 308 326 384 458 1661
060 Power Plants 246 331 296 335 434 1642
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 158 212 336 361 551 1618
702 DP: Measuring, Calibrating, or Testing (Data Processing) 222 346 349 345 356 1618
297 Chairs and Seats 278 338 350 383 257 1606
451 Abrading 235 237 302 348 478 1600
296 Land Vehicles: Bodies and Tops 173 273 334 377 423 1580
482 Exercise Devices 311 339 319 308 272 1549
700 DP: Generic Control Systems or Specific Applications (Data Processing) 206 375 312 279 373 1545
174 Electricity: Conductors and Insulators 195 293 256 292 502 1538
239 Fluid Sprinkling, Spraying, and Diffusing 218 316 352 389 261 1536
204 Chemistry: Electrical and Wave Energy 223 234 328 346 384 1515
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 188 312 312 285 380 1477
220 Receptacles 220 323 329 307 296 1475
310 Electrical Generator or Motor Structure 187 297 312 316 342 1454
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 207 270 322 304 345 1448
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 264 229 247 314 383 1437
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 185 333 325 290 297 1430
414 Material or Article Handling 242 264 301 355 258 1420
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 182 265 318 347 295 1407
326 Electronic Digital Logic Circuitry 196 214 252 353 387 1402
119 Animal Husbandry 222 336 299 260 264 1381
343 Communications: Radio Wave Antennas 154 174 307 322 409 1366
436 Chemistry: Analytical and Immunological Testing 215 295 307 252 283 1352
134 Cleaning and Liquid Contact with Solids 212 260 344 267 247 1330
244 Aeronautics 159 290 275 298 306 1328
341 Coded Data Generation or Conversion 237 247 218 228 378 1308
252 Compositions 238 284 274 267 241 1304
433 Dentistry 176 316 262 232 281 1267
717 DP: Software Development, Installation, and Management (Data Processing) 88 218 321 289 348 1264
358 Facsimile and Static Presentation Processing 250 286 233 243 221 1233
273 Amusement Devices: Games 238 280 241 233 233 1225
053 Package Making 278 286 233 231 190 1218
074 Machine Element or Mechanism 180 257 275 262 223 1197
005 Beds 212 225 233 262 253 1185
211 Supports: Racks 212 253 247 235 232 1179
417 Pumps 175 170 222 312 299 1178
318 Electricity: Motive Power Systems 184 240 247 268 223 1162
372 Coherent Light Generators 171 257 238 247 245 1158
224 Package and Article Carriers 222 265 244 206 214 1151
118 Coating Apparatus 174 198 210 282 283 1147
106 Compositions: Coating or Plastic 204 285 234 199 205 1127
004 Baths, Closets, Sinks, and Spittoons 154 221 275 236 239 1125
399 Electrophotography 177 284 253 178 207 1099
315 Electric Lamp and Discharge Devices: Systems 150 210 222 250 255 1087
423 Chemistry of Inorganic Compounds 181 204 233 207 211 1036
405 Hydraulic and Earth Engineering 187 238 238 184 180 1027
114 Ships 194 188 190 224 214 1010
043 Fishing, Trapping, and Vermin Destroying 147 156 287 232 171 993
363 Electric Power Conversion Systems 184 181 213 208 207 993
242 Winding, Tensioning, or Guiding 165 217 224 215 171 992
378 X-Ray or Gamma Ray Systems or Devices 144 167 155 224 285 975
434 Education and Demonstration 137 216 211 228 173 965
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 160 205 218 192 188 963
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 143 193 169 167 273 945
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 141 170 209 231 185 936
330 Amplifiers 122 142 188 232 244 928
381 Electrical Audio Signal Processing Systems and Devices 174 260 171 186 135 926
313 Electric Lamp and Discharge Devices 154 210 198 187 176 925
198 Conveyors: Power-Driven 149 144 202 200 223 918
708 Arithmetic Processing and Calculating (Electrical Computers) 134 219 206 185 173 917
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 174 193 174 167 207 915
446 Amusement Devices: Toys 93 172 177 249 192 883
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 153 159 201 164 205 882
396 Photography 163 239 197 160 121 880
072 Metal Deforming 175 192 195 150 159 871
099 Foods and Beverages: Apparatus 168 166 176 181 169 860
081 Tools 91 124 192 214 230 851
084 Music 123 165 201 203 156 848
033 Geometrical Instruments 127 179 140 184 217 847
040 Card, Picture, or Sign Exhibiting 131 152 186 196 179 844
030 Cutlery 119 183 192 188 160 842
175 Boring or Penetrating the Earth 110 142 172 181 220 825
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 120 121 165 172 245 823
162 Paper Making and Fiber Liberation 137 172 146 174 190 819
024 Buckles, Buttons, Clasps, Etc. 158 163 163 161 165 810
180 Motor Vehicles 93 145 164 199 206 807
070 Locks 137 210 181 145 123 796
307 Electrical Transmission or Interconnection Systems 155 153 203 157 127 795
294 Handling: Hand and Hoist-Line Implements 132 185 161 174 135 787
320 Electricity: Battery or Capacitor Charging or Discharging 130 120 159 189 186 784
323 Electricity: Power Supply or Regulation Systems 150 152 160 151 169 782
285 Pipe Joints or Couplings 116 193 166 153 151 779
132 Toilet 89 175 227 157 129 777
101 Printing 122 188 170 153 142 775
083 Cutting 100 165 184 165 160 774
165 Heat Exchange 113 166 159 158 172 768
602 Surgery: Splint, Brace, or Bandage 109 184 167 168 125 753
312 Supports: Cabinet Structure 132 160 167 168 117 744
351 Optics: Eye Examining, Vision Testing and Correcting 100 150 167 168 152 737
200 Electricity: Circuit Makers and Breakers 133 189 159 146 95 722
148 Metal Treatment 110 154 150 146 161 721
228 Metal Fusion Bonding 113 104 134 178 181 710
034 Drying and Gas or Vapor Contact with Solids 119 132 152 177 121 701
036 Boots, Shoes, and Leggings 109 156 164 148 119 696
251 Valves and Valve Actuation 101 134 152 180 128 695
369 Dynamic Information Storage or Retrieval 117 142 138 156 140 693
056 Harvesters 85 149 162 160 132 688
725 Interactive Video Distribution Systems 113 172 165 103 133 686
229 Envelopes, Wrappers, and Paperboard Boxes 102 148 152 145 132 679
367 Communications, Electrical: Acoustic Wave Systems and Devices 141 160 119 153 101 674
463 Amusement Devices: Games 72 146 120 135 196 669
188 Brakes 97 113 152 119 183 664
585 Chemistry of Hydrocarbon Compounds 107 139 152 142 124 664
208 Mineral Oils: Processes and Products 107 106 174 146 120 653
160 Flexible or Portable Closure, Partition, or Panel 107 126 114 164 132 643
277 Seal for a Joint or Juncture 103 104 128 144 162 641
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 114 144 142 135 105 640
047 Plant Husbandry 97 104 123 169 143 636
333 Wave Transmission Lines and Networks 77 141 140 136 120 614
095 Gas Separation: Processes 95 127 133 129 124 608
126 Stoves and Furnaces 98 109 143 138 116 604
403 Joints and Connections 114 140 90 120 136 600
216 Etching a Substrate: Processes 106 128 118 126 120 598
108 Horizontally Supported Planar Surfaces 116 102 131 134 114 597
331 Oscillators 97 112 103 123 150 585
380 Cryptography 106 140 91 122 126 585
241 Solid Material Comminution or Disintegration 119 121 154 106 82 582
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 113 137 110 112 106 578
182 Fire Escape, Ladder, or Scaffold 82 110 142 130 97 561
366 Agitating (e.g., of articles and materials) 101 115 126 106 109 557
292 Closure Fasteners 135 114 105 143 59 556
431 Combustion 78 85 138 125 114 540
706 DP: Artificial Intelligence (Data Processing) 112 171 79 85 93 540
415 Rotary Kinetic Fluid Motors or Pumps 94 98 89 124 133 538
042 Firearms 119 123 109 66 120 537
049 Movable or Removable Closures 92 92 110 128 101 523
209 Classifying, Separating, and Assorting Solids 72 90 121 115 124 522
416 Fluid Reaction Surfaces (i.e., Impellers) 82 86 87 122 145 522
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 97 116 107 98 103 521
016 Miscellaneous Hardware 92 125 106 101 96 520
215 Bottles and Jars 87 110 134 106 81 518
065 Glass Manufacturing 94 111 130 77 101 513
138 Pipes and Tubular Conduits 59 88 134 126 106 513
400 Typewriting Machines 73 119 124 100 87 503
102 Ammunition and Explosives 94 107 89 84 125 499
192 Clutches and Power-Stop Control 96 81 135 103 79 494
349 Liquid Crystal Cells, Elements and Systems 79 98 108 107 96 488
271 Sheet Feeding or Delivering 95 63 105 97 126 486
504 Plant Protecting and Regulating Compositions 137 89 105 82 73 486
401 Coating Implements with Material Supply 35 56 130 111 147 479
124 Mechanical Guns and Projectors 120 97 99 87 72 475
221 Article Dispensing 70 99 103 83 113 468
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 74 68 114 93 117 466
454 Ventilation 73 98 81 103 111 466
055 Gas Separation 60 124 90 100 89 463
283 Printed Matter 61 104 112 97 85 459
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 77 88 96 91 92 444
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 55 81 127 97 79 439
404 Road Structure, Process, or Apparatus 76 73 103 103 75 430
384 Bearings 69 91 101 68 100 429
374 Thermal Measuring and Testing 76 119 53 101 75 424
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 62 104 75 107 71 419
254 Implements or Apparatus for Applying Pushing or Pulling Force 65 64 96 96 96 417
135 Tent, Canopy, Umbrella, or Cane 77 85 74 71 105 412
181 Acoustics 62 88 98 100 64 412
440 Marine Propulsion 66 74 71 84 117 412
383 Flexible Bags 45 62 92 107 100 406
475 Planetary Gear Transmission Systems or Components 64 65 102 105 60 396
172 Earth Working 64 87 74 90 75 390
164 Metal Founding 76 80 97 55 80 388
376 Induced Nuclear Reactions: Processes, Systems, and Elements 84 109 79 39 67 378
501 Compositions: Ceramic 80 71 70 66 85 372
096 Gas Separation: Apparatus 79 73 77 67 70 366
269 Work Holders 50 68 82 91 73 364
037 Excavating 50 55 79 91 79 354
408 Cutting by Use of Rotating Axially Moving Tool 58 87 84 45 75 349
601 Surgery: Kinesitherapy 47 92 57 63 89 348
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 57 64 68 80 72 341
303 Fluid-Pressure and Analogous Brake Systems 50 56 56 78 90 330
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 58 86 92 48 45 329
089 Ordnance 57 76 58 54 78 323
144 Woodworking 60 67 74 71 49 321
392 Electric Resistance Heating Devices 41 63 68 78 66 316
261 Gas and Liquid Contact Apparatus 50 52 70 70 72 314
418 Rotary Expansible Chamber Devices 35 42 30 118 89 314
227 Elongated-Member-Driving Apparatus 75 68 68 52 50 313
044 Fuel and Related Compositions 58 71 53 70 58 310
441 Buoys, Rafts, and Aquatic Devices 60 68 65 60 57 310
223 Apparel Apparatus 59 40 65 73 59 296
267 Spring Devices 43 45 57 72 73 290
368 Horology: Time Measuring Systems or Devices 50 60 63 43 69 285
410 Freight Accommodation On Freight Carrier 36 48 52 79 64 279
355 Photocopying 49 55 60 57 56 277
136 Batteries: Thermoelectric and Photoelectric 24 29 53 81 88 275
445 Electric Lamp or Space Discharge Component or Device Manufacturing 51 44 61 68 48 272
386 Television Signal Processing for Dynamic Recording or Reproducing 46 50 46 58 64 264
110 Furnaces 58 81 31 39 51 260
474 Endless Belt Power Transmission Systems or Components 50 58 44 61 47 260
452 Butchering 36 45 49 66 61 257
112 Sewing 58 47 52 42 57 256
588 Hazardous or Toxic Waste Destruction or Containment 65 55 50 42 40 252
092 Expansible Chamber Devices 52 56 57 32 53 250
301 Land Vehicles: Wheels and Axles 37 54 41 58 60 250
507 Earth Boring, Well Treating, and Oil Field Chemistry 57 49 46 47 46 245
131 Tobacco 44 72 51 44 31 242
100 Presses 45 68 53 40 35 241
409 Gear Cutting, Milling, or Planing 54 47 45 61 29 236
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 40 44 34 45 68 231
105 Railway Rolling Stock 46 58 29 42 55 230
152 Resilient Tires and Wheels 38 48 42 52 50 230
432 Heating 32 44 62 39 47 224
256 Fences 40 43 37 47 55 222
169 Fire Extinguishers 35 33 56 65 25 214
104 Railways 54 38 33 33 50 208
149 Explosive and Thermic Compositions or Charges 35 42 30 56 43 206
082 Turning (e.g., for metal working) 39 46 48 29 43 205
116 Signals and Indicators 41 31 42 44 47 205
336 Inductor Devices 24 45 35 44 55 203
505 Superconductor Technology: Apparatus, Material, Process 41 39 57 34 32 203
111 Planting 39 29 44 43 47 202
177 Weighing Scales 37 47 51 28 37 200
281 Books, Strips, and Leaves 37 37 48 40 36 198
419 Powder Metallurgy Processes 29 42 51 36 38 196
472 Amusement Devices 36 48 37 41 30 192
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 42 36 32 38 42 190
122 Liquid Heaters and Vaporizers 22 48 33 45 41 189
236 Automatic Temperature and Humidity Regulation 29 34 38 40 48 189
353 Optics: Image Projectors 38 42 39 23 43 185
203 Distillation: Processes, Separatory 40 54 38 32 20 184
338 Electrical Resistors 27 35 49 39 34 184
051 Abrasive Tool Making Process, Material, or Composition 51 29 32 31 40 183
194 Check-Actuated Control Mechanisms 28 29 46 45 35 183
477 Interrelated Power Delivery Controls, Including Engine Control 25 32 31 53 42 183
266 Metallurgical Apparatus 30 39 35 43 30 177
337 Electricity: Electrothermally or Thermally Actuated Switches 30 42 50 34 17 173
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 30 39 46 27 22 164
290 Prime-Mover Dynamo Plants 7 29 25 40 59 160
173 Tool Driving or Impacting 34 30 28 31 36 159
279 Chucks or Sockets 11 41 42 26 37 157
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 24 30 30 41 32 157
063 Jewelry 41 28 25 30 22 146
068 Textiles: Fluid Treating Apparatus 29 34 34 26 22 145
249 Static Molds 29 35 26 22 33 145
184 Lubrication 27 27 19 36 34 143
091 Motors: Expansible Chamber Type 20 34 23 19 46 142
066 Textiles: Knitting 25 22 24 34 35 140
450 Foundation Garments 16 19 29 39 35 138
071 Chemistry: Fertilizers 28 34 28 19 28 137
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 25 24 26 41 17 133
007 Compound Hand Tools 16 25 32 28 31 132
406 Conveyors: Fluid Current 24 30 26 26 26 132
299 Mining or In Situ Disintegration of Hard Material 24 30 21 25 30 130
139 Textiles: Weaving 21 21 21 33 33 129
057 Textiles: Spinning, Twisting, and Twining 26 37 17 18 26 124
494 Imperforate Bowl: Centrifugal Separators 21 24 31 28 19 123
212 Traversing Hoists 24 20 27 30 17 118
125 Stone Working 11 19 24 27 34 115
226 Advancing Material of Indeterminate Length 9 33 27 25 20 114
246 Railway Switches and Signals 28 33 10 22 21 114
322 Electricity: Single Generator Systems 24 24 17 24 24 113
407 Cutters, for Shaping 20 22 26 26 16 110
014 Bridges 18 23 24 24 20 109
305 Wheel Substitutes for Land Vehicles 10 20 17 31 29 107
232 Deposit and Collection Receptacles 23 22 24 13 21 103
190 Trunks and Hand-Carried Luggage 15 17 24 24 22 102
027 Undertaking 24 21 15 20 21 101
270 Sheet-Material Associating 30 25 12 10 19 96
293 Vehicle Fenders 16 14 17 16 33 96
460 Crop Threshing or Separating 13 22 24 16 21 96
420 Alloys or Metallic Compositions 20 14 24 17 20 95
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 12 24 14 10 30 90
373 Industrial Electric Heating Furnaces 6 9 31 27 15 88
048 Gas: Heating and Illuminating 27 22 14 15 9 87
140 Wireworking 17 22 16 17 12 84
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 4 12 16 26 26 84
054 Harness (for animals) 10 21 9 26 17 83
127 Sugar, Starch, and Carbohydrates 12 23 21 10 17 83
202 Distillation: Apparatus 19 16 13 15 18 81
225 Severing by Tearing or Breaking 12 26 23 9 10 80
038 Textiles: Ironing or Smoothing 13 21 16 11 16 77
150 Purses, Wallets, and Protective Covers 7 17 15 19 19 77
028 Textiles: Manufacturing 12 12 17 20 14 75
237 Heating Systems 9 15 16 15 20 75
298 Land Vehicles: Dumping 5 15 11 19 25 75
076 Metal Tools and Implements, Making 15 16 10 19 11 71
213 Railway Draft Appliances 12 13 14 12 17 68
332 Modulators 10 14 17 9 18 68
001 ** Classification Undetermined ** 6 21 21 9 9 66
178 Telegraphy 13 20 19 7 5 64
193 Conveyors, Chutes, Skids, Guides, and Ways 9 3 14 19 18 63
019 Textiles: Fiber Preparation 11 11 13 12 14 61
109 Safes, Bank Protection, or a Related Device 18 13 15 9 5 60
352 Optics: Motion Pictures 13 12 17 6 12 60
412 Bookbinding: Process and Apparatus 15 11 7 15 11 59
492 Roll or Roller 9 17 13 7 10 56
026 Textiles: Cloth Finishing 10 10 13 10 11 54
238 Railways: Surface Track 7 14 9 12 10 52
329 Demodulators 12 12 9 11 8 52
059 Chain, Staple, and Horseshoe Making 10 10 9 9 11 49
346 Recorders 1 9 16 19 4 49
388 Electricity: Motor Control Systems 11 10 12 11 3 47
086 Ammunition and Explosive-Charge Making 10 12 6 6 11 45
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 7 10 11 7 8 43
512 Perfume Compositions 9 8 5 14 7 43
453 Coin Handling 4 7 9 12 10 42
483 Tool Changing 10 7 10 9 3 39
087 Textiles: Braiding, Netting, and Lace Making 6 9 11 5 4 35
191 Electricity: Transmission To Vehicles 11 7 3 6 8 35
168 Farriery 8 6 3 9 7 33
289 Knots and Knot Tying 9 2 7 5 10 33
012 Boot and Shoe Making 4 8 11 2 7 32
157 Wheelwright Machines 2 2 7 10 11 32
186 Merchandising 5 9 4 8 5 31
300 Brush, Broom, and Mop Making 9 6 9 0 5 29
413 Sheet Metal Container Making 5 5 5 5 3 23
201 Distillation: Processes, Thermolytic 5 7 3 2 1 18
476 Friction Gear Transmission Systems or Components 4 2 4 4 4 18
171 Unearthing Plants or Buried Objects 2 3 0 6 4 15
023 Chemistry: Physical Processes 1 6 1 3 3 14
185 Motors: Spring, Weight, or Animal Powered 2 1 4 4 2 13
260 Chemistry of Carbon Compounds 3 2 0 1 6 12
159 Concentrating Evaporators 2 5 2 1 1 11
462 Books, Strips, and Leaves for Manifolding 1 2 2 2 4 11
217 Wooden Receptacles 0 3 4 2 0 9
196 Mineral Oils: Apparatus 2 3 1 1 1 8
295 Railway Wheels and Axles 2 0 3 1 2 8
449 Bee Culture (propagating, raising, caring for bees) 2 2 1 1 1 7
142 Wood Turning 1 0 2 2 1 6
147 Coopering 0 1 0 0 4 5
334 Tuners 0 0 3 1 0 4
231 Whips and Whip Apparatus 0 0 0 3 0 3
069 Leather Manufactures 0 0 1 0 1 2
079 Button Making 0 0 1 1 0 2
163 Needle and Pin Making 1 0 0 1 0 2
245 Wire Fabrics and Structure 0 1 0 1 0 2
291 Track Sanders 0 0 0 1 0 1
ALL ALL CLASSES 61707 80292 83905 85070 87607 398581



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Last Modified: April 9, 2002