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

ALL COUNTRIES

(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) 4542 6124 6793 7163 6730 31352
435 Chemistry: Molecular Biology and Microbiology 2098 2860 4058 4021 3498 16535
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 2989 2898 3284 3276 3346 15793
532 Organic Compounds (includes Classes 532-570) 2823 3023 3455 3389 3051 15741
438 Semiconductor Device Manufacturing: Process 1401 1755 2282 3388 4459 13285
428 Stock Material or Miscellaneous Articles 2186 2348 2771 2951 2740 12996
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1538 1615 2413 2613 2703 10882
128 Surgery (includes Class 600) 1497 1558 2279 2089 2358 9781
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 1167 1356 2165 2056 2117 8861
359 Optics: Systems (Including Communication) and Elements 1325 1318 1905 1900 1950 8398
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1402 1342 1627 1737 1795 7903
073 Measuring and Testing 1458 1344 1651 1524 1513 7490
439 Electrical Connectors 987 1196 1310 1663 2240 7396
365 Static Information Storage and Retrieval 1007 1134 1503 1751 1913 7308
606 Surgery (instruments) 927 1243 1482 1608 1619 6879
370 Multiplex Communications 1029 893 1219 1493 1821 6455
455 Telecommunications 812 675 1240 1593 1953 6273
340 Communications: Electrical 937 1056 1358 1361 1456 6168
604 Surgery (Medicators and Receptors) 1079 1081 1475 1344 1177 6156
123 Internal-Combustion Engines 1071 1107 1295 1236 1393 6102
361 Electricity: Electrical Systems and Devices 969 849 1382 1287 1385 5872
210 Liquid Purification or Separation 1113 1106 1156 1162 1168 5705
375 Pulse or Digital Communications 850 865 1235 1235 1328 5513
280 Land Vehicles 1008 813 1111 1180 1388 5500
029 Metal Working 924 969 1203 1121 1259 5476
324 Electricity: Measuring and Testing 1243 982 986 936 1171 5318
250 Radiant Energy 1022 905 1145 1051 1055 5178
348 Television 1034 858 1149 1092 1035 5168
382 Image Analysis 517 634 1288 1336 1233 5008
360 Dynamic Magnetic Information Storage or Retrieval 695 749 1119 1143 1213 4919
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 747 884 1055 1126 1058 4870
427 Coating Processes 787 878 983 1089 1101 4838
399 Electrophotography 904 731 1077 1082 956 4750
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 770 888 1112 992 973 4735
347 Incremental Printing of Symbolic Information 596 597 1048 1029 1412 4682
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 717 595 985 1086 1218 4601
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 441 439 1157 1200 1351 4588
052 Static Structures (e.g., Buildings) 744 830 1004 984 1013 4575
369 Dynamic Information Storage or Retrieval 812 805 1072 962 886 4537
714 Error Detection/Correction and Fault Detection/Recovery 751 707 1067 1027 982 4534
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 477 550 1148 1244 1100 4519
356 Optics: Measuring and Testing 706 726 1049 985 1026 4492
379 Telephonic Communications 741 614 1046 1099 914 4414
710 Input/Output (Electrical Computers and Digital Processing Systems) 580 638 1025 1058 1010 4311
219 Electric Heating 600 555 834 954 1158 4101
358 Facsimile and Static Presentation Processing 748 652 946 799 743 3888
062 Refrigeration 631 683 790 895 879 3878
385 Optical Waveguides 568 672 857 832 858 3787
396 Photography 692 747 959 721 666 3785
206 Special Receptacle or Package 631 613 849 867 802 3762
711 Memory (Electrical Computers and Digital Processing Systems) 565 571 855 842 886 3719
137 Fluid Handling 555 538 746 901 942 3682
426 Food or Edible Material: Processes, Compositions, and Products 629 524 618 878 909 3558
310 Electrical Generator or Motor Structure 426 492 862 866 905 3551
362 Illumination 531 536 645 666 877 3255
248 Supports (e.g., for holding articles, etc.) 490 487 750 721 799 3247
060 Power Plants 502 537 707 670 732 3148
473 Games Using Tangible Projectile 580 575 790 638 561 3144
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 561 499 625 681 599 2965
252 Compositions 532 497 661 654 604 2948
713 Support (Electrical Computers and Digital Processing Systems) 325 388 688 754 745 2900
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 340 544 725 717 556 2882
222 Dispensing (apparatus and process) 462 434 555 785 629 2865
074 Machine Element or Mechanism 501 431 633 633 625 2823
318 Electricity: Motive Power Systems 467 417 663 622 631 2800
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 430 328 509 682 820 2769
297 Chairs and Seats 460 447 540 590 648 2685
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 531 485 486 495 668 2665
015 Brushing, Scrubbing, and General Cleaning 446 394 543 599 614 2596
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 355 403 659 663 487 2567
204 Chemistry: Electrical and Wave Energy 419 432 477 545 693 2566
313 Electric Lamp and Discharge Devices 395 375 607 608 555 2540
349 Liquid Crystal Cells, Elements and Systems 382 375 600 509 652 2518
242 Winding, Tensioning, or Guiding 445 420 573 535 528 2501
002 Apparel 383 423 507 601 565 2479
700 DP: Generic Control Systems or Specific Applications (Data Processing) 459 347 654 534 460 2454
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 366 343 556 616 520 2401
239 Fluid Sprinkling, Spraying, and Diffusing 305 353 527 573 639 2397
414 Material or Article Handling 478 409 451 481 570 2389
451 Abrading 351 426 400 530 668 2375
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 210 363 609 626 529 2337
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 155 245 489 714 725 2328
106 Compositions: Coating or Plastic 393 414 557 517 428 2309
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 350 318 442 561 605 2276
417 Pumps 422 352 367 443 677 2261
702 DP: Measuring, Calibrating, or Testing (Data Processing) 369 348 516 511 516 2260
341 Coded Data Generation or Conversion 319 472 566 441 458 2256
053 Package Making 391 434 538 390 455 2208
423 Chemistry of Inorganic Compounds 405 386 429 498 475 2193
296 Land Vehicles: Bodies and Tops 318 285 431 533 619 2186
220 Receptacles 383 347 451 511 477 2169
607 Surgery: Light, Thermal, and Electrical Application 330 322 522 457 513 2144
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 340 328 427 478 569 2142
118 Coating Apparatus 369 376 413 429 552 2139
372 Coherent Light Generators 349 352 502 464 469 2136
315 Electric Lamp and Discharge Devices: Systems 355 303 450 473 540 2121
101 Printing 358 360 527 445 429 2119
072 Metal Deforming 325 388 470 499 435 2117
174 Electricity: Conductors and Insulators 361 316 488 412 516 2093
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 235 264 451 574 545 2069
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 417 296 401 453 494 2061
482 Exercise Devices 370 395 451 410 415 2041
134 Cleaning and Liquid Contact with Solids 303 320 431 548 436 2038
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 376 396 473 382 384 2011
363 Electric Power Conversion Systems 258 372 401 507 454 1992
343 Communications: Radio Wave Antennas 260 249 305 554 603 1971
436 Chemistry: Analytical and Immunological Testing 326 319 463 476 381 1965
326 Electronic Digital Logic Circuitry 366 304 324 357 532 1883
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 308 245 384 420 511 1868
148 Metal Treatment 338 292 390 407 399 1826
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 311 283 367 385 479 1825
381 Electrical Audio Signal Processing Systems and Devices 287 330 505 324 361 1807
119 Animal Husbandry 277 282 452 389 355 1755
198 Conveyors: Power-Driven 301 279 320 421 420 1741
084 Music 322 273 341 418 379 1733
180 Motor Vehicles 303 199 356 415 454 1727
433 Dentistry 257 261 440 398 363 1719
244 Aeronautics 223 214 404 383 435 1659
405 Hydraulic and Earth Engineering 367 266 381 351 289 1654
165 Heat Exchange 301 265 341 378 368 1653
708 Arithmetic Processing and Calculating (Electrical Computers) 275 260 383 398 297 1613
005 Beds 333 297 311 314 354 1609
273 Amusement Devices: Games 309 325 359 310 291 1594
200 Electricity: Circuit Makers and Breakers 251 249 389 361 342 1592
099 Foods and Beverages: Apparatus 279 319 304 350 332 1584
378 X-Ray or Gamma Ray Systems or Devices 311 273 315 267 380 1546
192 Clutches and Power-Stop Control 244 280 264 392 358 1538
307 Electrical Transmission or Interconnection Systems 221 272 317 384 327 1521
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 284 278 271 341 333 1507
162 Paper Making and Fiber Liberation 269 291 331 284 326 1501
386 Television Signal Processing for Dynamic Recording or Reproducing 274 225 332 334 310 1475
333 Wave Transmission Lines and Networks 218 214 337 346 359 1474
004 Baths, Closets, Sinks, and Spittoons 197 218 312 409 327 1463
330 Amplifiers 205 209 266 353 423 1456
211 Supports: Racks 234 258 331 302 318 1443
400 Typewriting Machines 253 221 321 330 305 1430
224 Package and Article Carriers 260 267 319 301 245 1392
114 Ships 271 256 256 274 334 1391
024 Buckles, Buttons, Clasps, Etc. 225 292 290 299 276 1382
070 Locks 201 241 338 319 249 1348
188 Brakes 295 201 255 303 294 1348
034 Drying and Gas or Vapor Contact with Solids 249 229 241 283 345 1347
320 Electricity: Battery or Capacitor Charging or Discharging 149 266 244 322 361 1342
717 DP: Software Development, Installation, and Management (Data Processing) 132 131 307 405 366 1341
285 Pipe Joints or Couplings 252 188 299 315 285 1339
323 Electricity: Power Supply or Regulation Systems 197 260 266 310 306 1339
030 Cutlery 233 227 276 304 289 1329
271 Sheet Feeding or Delivering 228 241 201 323 320 1313
351 Optics: Eye Examining, Vision Testing and Correcting 202 196 278 322 311 1309
083 Cutting 157 176 301 336 313 1283
033 Geometrical Instruments 255 203 260 228 328 1274
043 Fishing, Trapping, and Vermin Destroying 273 175 183 349 290 1270
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 154 223 298 303 283 1261
384 Bearings 257 196 254 263 267 1237
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 227 215 236 296 251 1225
251 Valves and Valve Actuation 178 166 244 286 342 1216
434 Education and Demonstration 202 172 281 271 287 1213
228 Metal Fusion Bonding 202 203 179 257 370 1211
241 Solid Material Comminution or Disintegration 248 218 245 279 211 1201
403 Joints and Connections 223 252 270 198 241 1184
504 Plant Protecting and Regulating Compositions 228 265 224 231 229 1177
446 Amusement Devices: Toys 182 135 257 260 330 1164
312 Supports: Cabinet Structure 193 191 235 260 270 1149
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 211 158 227 312 239 1147
081 Tools 193 129 184 285 351 1142
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 187 189 268 244 238 1126
303 Fluid-Pressure and Analogous Brake Systems 217 190 215 230 272 1124
585 Chemistry of Hydrocarbon Compounds 204 169 242 270 231 1116
277 Seal for a Joint or Juncture 239 212 180 225 258 1114
501 Compositions: Ceramic 224 211 211 243 205 1094
040 Card, Picture, or Sign Exhibiting 176 187 215 243 265 1086
132 Toilet 135 139 243 322 239 1078
036 Boots, Shoes, and Leggings 146 176 257 258 229 1066
331 Oscillators 169 176 228 220 266 1059
415 Rotary Kinetic Fluid Motors or Pumps 233 167 190 188 275 1053
294 Handling: Hand and Hoist-Line Implements 182 180 239 209 240 1050
175 Boring or Penetrating the Earth 180 154 212 231 268 1045
216 Etching a Substrate: Processes 158 200 235 229 214 1036
164 Metal Founding 195 200 224 243 162 1024
366 Agitating (e.g., of articles and materials) 224 160 213 214 203 1014
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 165 178 217 225 221 1006
292 Closure Fasteners 210 194 183 187 231 1005
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 174 150 199 246 229 998
355 Photocopying 93 191 224 250 226 984
016 Miscellaneous Hardware 179 162 214 198 228 981
065 Glass Manufacturing 118 199 234 250 176 977
431 Combustion 166 130 191 256 233 976
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 170 184 227 195 199 975
475 Planetary Gear Transmission Systems or Components 160 173 168 260 213 974
725 Interactive Video Distribution Systems 165 153 251 249 154 972
367 Communications, Electrical: Acoustic Wave Systems and Devices 222 171 222 163 192 970
056 Harvesters 156 114 213 236 228 947
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 195 177 203 184 188 947
477 Interrelated Power Delivery Controls, Including Engine Control 144 181 203 210 203 941
602 Surgery: Splint, Brace, or Bandage 133 139 234 212 222 940
380 Cryptography 141 172 233 157 228 931
209 Classifying, Separating, and Assorting Solids 165 159 166 221 219 930
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 137 127 201 234 227 926
706 DP: Artificial Intelligence (Data Processing) 163 202 305 126 127 923
138 Pipes and Tubular Conduits 113 110 172 241 275 911
049 Movable or Removable Closures 176 139 176 182 236 909
126 Stoves and Furnaces 138 143 162 229 223 895
095 Gas Separation: Processes 136 131 206 216 205 894
229 Envelopes, Wrappers, and Paperboard Boxes 162 141 200 199 191 893
160 Flexible or Portable Closure, Partition, or Panel 159 165 170 160 232 886
047 Plant Husbandry 178 130 143 191 236 878
463 Amusement Devices: Games 89 128 224 201 236 878
208 Mineral Oils: Processes and Products 125 134 153 254 206 872
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 177 149 123 220 193 862
112 Sewing 178 155 181 188 156 858
108 Horizontally Supported Planar Surfaces 167 158 157 176 190 848
416 Fluid Reaction Surfaces (i.e., Impellers) 168 139 131 160 235 833
215 Bottles and Jars 120 133 186 195 164 798
440 Marine Propulsion 138 119 152 162 210 781
418 Rotary Expansible Chamber Devices 155 109 129 94 281 768
401 Coating Implements with Material Supply 75 67 122 263 225 752
454 Ventilation 115 134 177 149 171 746
376 Induced Nuclear Reactions: Processes, Systems, and Elements 171 137 184 156 82 730
181 Acoustics 111 101 158 172 171 713
055 Gas Separation 94 103 188 150 170 705
182 Fire Escape, Ladder, or Scaffold 97 104 151 191 162 705
102 Ammunition and Explosives 152 143 155 132 121 703
474 Endless Belt Power Transmission Systems or Components 103 129 148 138 184 702
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 120 111 154 181 116 682
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 112 89 153 146 171 671
152 Resilient Tires and Wheels 104 123 136 129 173 665
267 Spring Devices 117 110 119 149 158 653
374 Thermal Measuring and Testing 61 126 192 94 176 649
368 Horology: Time Measuring Systems or Devices 113 117 145 139 129 643
221 Article Dispensing 126 85 134 145 152 642
404 Road Structure, Process, or Apparatus 137 104 107 147 140 635
096 Gas Separation: Apparatus 109 124 131 133 126 623
057 Textiles: Spinning, Twisting, and Twining 108 111 161 116 108 604
408 Cutting by Use of Rotating Axially Moving Tool 83 101 150 170 94 598
227 Elongated-Member-Driving Apparatus 106 123 126 110 121 586
172 Earth Working 110 94 134 111 131 580
445 Electric Lamp or Space Discharge Component or Device Manufacturing 74 95 115 131 165 580
092 Expansible Chamber Devices 92 110 140 136 98 576
254 Implements or Apparatus for Applying Pushing or Pulling Force 85 99 100 142 150 576
042 Firearms 97 135 145 119 75 571
135 Tent, Canopy, Umbrella, or Cane 95 104 130 108 121 558
124 Mechanical Guns and Projectors 104 138 106 109 99 556
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 120 114 112 122 83 551
144 Woodworking 80 90 107 139 131 547
110 Furnaces 102 121 142 81 90 536
283 Printed Matter 75 79 118 138 125 535
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 85 109 134 99 104 531
139 Textiles: Weaving 99 98 106 89 137 529
100 Presses 102 103 135 105 81 526
037 Excavating 103 78 100 112 122 515
269 Work Holders 82 64 104 126 137 513
601 Surgery: Kinesitherapy 91 84 141 92 102 510
136 Batteries: Thermoelectric and Photoelectric 85 64 71 118 171 509
044 Fuel and Related Compositions 104 79 100 104 120 507
261 Gas and Liquid Contact Apparatus 99 91 85 111 119 505
089 Ordnance 76 110 122 107 83 498
409 Gear Cutting, Milling, or Planing 65 91 108 117 116 497
353 Optics: Image Projectors 84 95 113 95 100 487
505 Superconductor Technology: Apparatus, Material, Process 128 91 86 107 72 484
131 Tobacco 91 92 129 79 89 480
432 Heating 53 71 112 136 99 471
066 Textiles: Knitting 94 73 73 89 141 470
383 Flexible Bags 67 61 90 117 133 468
336 Inductor Devices 76 48 110 102 127 463
392 Electric Resistance Heating Devices 55 66 91 117 131 460
452 Butchering 93 65 92 89 111 450
068 Textiles: Fluid Treating Apparatus 70 80 112 111 69 442
588 Hazardous or Toxic Waste Destruction or Containment 112 87 91 80 67 437
338 Electrical Resistors 67 63 86 117 102 435
091 Motors: Expansible Chamber Type 87 77 111 77 80 432
441 Buoys, Rafts, and Aquatic Devices 75 82 94 85 93 429
266 Metallurgical Apparatus 87 77 75 86 92 417
301 Land Vehicles: Wheels and Axles 75 56 78 86 121 416
419 Powder Metallurgy Processes 90 73 70 102 75 410
104 Railways 85 102 72 51 65 375
337 Electricity: Electrothermally or Thermally Actuated Switches 39 69 99 104 64 375
173 Tool Driving or Impacting 55 53 76 84 99 367
169 Fire Extinguishers 58 56 67 87 96 364
223 Apparel Apparatus 53 73 61 82 93 362
105 Railway Rolling Stock 77 71 89 55 64 356
177 Weighing Scales 35 60 111 91 57 354
194 Check-Actuated Control Mechanisms 83 50 56 84 81 354
122 Liquid Heaters and Vaporizers 59 35 85 82 81 342
203 Distillation: Processes, Separatory 62 69 84 74 48 337
236 Automatic Temperature and Humidity Regulation 56 45 68 87 80 336
407 Cutters, for Shaping 40 49 77 83 84 333
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 57 69 67 61 73 327
082 Turning (e.g., for metal working) 41 64 73 82 66 326
420 Alloys or Metallic Compositions 69 55 65 77 58 324
410 Freight Accommodation On Freight Carrier 47 38 61 71 97 314
149 Explosive and Thermic Compositions or Charges 81 46 55 38 73 293
507 Earth Boring, Well Treating, and Oil Field Chemistry 34 73 64 58 59 288
051 Abrasive Tool Making Process, Material, or Composition 69 72 39 52 45 277
472 Amusement Devices 51 44 69 55 56 275
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 52 34 79 55 47 267
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 51 45 53 52 66 267
256 Fences 44 54 51 48 62 259
281 Books, Strips, and Leaves 37 46 51 71 54 259
116 Signals and Indicators 57 52 39 51 59 258
019 Textiles: Fiber Preparation 54 54 46 45 58 257
111 Planting 55 47 38 58 59 257
270 Sheet-Material Associating 60 63 67 33 33 256
322 Electricity: Single Generator Systems 55 53 63 36 49 256
184 Lubrication 59 42 51 44 59 255
226 Advancing Material of Indeterminate Length 33 34 79 58 47 251
373 Industrial Electric Heating Furnaces 55 27 36 72 56 246
290 Prime-Mover Dynamo Plants 17 26 65 54 82 244
071 Chemistry: Fertilizers 44 59 59 42 38 242
494 Imperforate Bowl: Centrifugal Separators 50 37 49 52 50 238
279 Chucks or Sockets 37 26 57 71 46 237
028 Textiles: Manufacturing 38 47 39 45 54 223
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 25 38 51 47 52 213
063 Jewelry 42 54 40 33 41 210
125 Stone Working 24 30 41 47 68 210
406 Conveyors: Fluid Current 51 35 42 31 49 208
299 Mining or In Situ Disintegration of Hard Material 40 45 39 39 44 207
249 Static Molds 35 45 50 39 35 204
212 Traversing Hoists 24 44 47 37 51 203
237 Heating Systems 23 24 49 45 46 187
014 Bridges 41 30 39 40 32 182
190 Trunks and Hand-Carried Luggage 37 30 38 37 39 181
038 Textiles: Ironing or Smoothing 32 37 34 33 38 174
178 Telegraphy 54 40 36 32 10 172
492 Roll or Roller 22 31 52 38 28 171
140 Wireworking 33 33 37 33 30 166
246 Railway Switches and Signals 38 37 44 16 31 166
332 Modulators 39 24 41 35 27 166
007 Compound Hand Tools 28 24 31 40 41 164
329 Demodulators 28 31 36 30 36 161
048 Gas: Heating and Illuminating 23 42 45 28 19 157
450 Foundation Garments 9 20 28 41 57 155
460 Crop Threshing or Separating 37 18 33 34 30 152
202 Distillation: Apparatus 28 31 31 35 24 149
225 Severing by Tearing or Breaking 31 23 35 35 21 145
483 Tool Changing 12 28 30 39 36 145
127 Sugar, Starch, and Carbohydrates 22 18 32 46 21 139
305 Wheel Substitutes for Land Vehicles 14 18 34 29 41 136
001 ** Classification Undetermined ** 2 10 43 38 37 130
293 Vehicle Fenders 15 22 30 28 32 127
412 Bookbinding: Process and Apparatus 16 26 20 25 37 124
076 Metal Tools and Implements, Making 27 24 23 18 31 123
232 Deposit and Collection Receptacles 22 23 25 28 19 117
476 Friction Gear Transmission Systems or Components 22 16 13 25 38 114
238 Railways: Surface Track 27 20 31 14 21 113
512 Perfume Compositions 28 19 23 14 29 113
027 Undertaking 16 28 24 20 23 111
453 Coin Handling 29 13 16 24 29 111
352 Optics: Motion Pictures 21 23 18 26 21 109
059 Chain, Staple, and Horseshoe Making 12 19 27 27 23 108
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 13 8 23 24 38 106
026 Textiles: Cloth Finishing 20 17 23 25 14 99
054 Harness (for animals) 15 12 27 12 31 97
388 Electricity: Motor Control Systems 20 19 16 21 21 97
346 Recorders 20 9 17 22 22 90
150 Purses, Wallets, and Protective Covers 15 9 19 17 28 88
109 Safes, Bank Protection, or a Related Device 12 22 21 16 11 82
213 Railway Draft Appliances 27 14 14 14 13 82
191 Electricity: Transmission To Vehicles 13 21 18 15 14 81
193 Conveyors, Chutes, Skids, Guides, and Ways 9 11 4 26 25 75
298 Land Vehicles: Dumping 20 6 17 11 21 75
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 7 16 18 15 12 68
012 Boot and Shoe Making 11 10 13 20 6 60
300 Brush, Broom, and Mop Making 12 15 12 12 5 56
086 Ammunition and Explosive-Charge Making 7 14 18 7 8 54
186 Merchandising 13 8 12 9 10 52
413 Sheet Metal Container Making 6 9 11 16 7 49
087 Textiles: Braiding, Netting, and Lace Making 6 6 13 15 7 47
159 Concentrating Evaporators 11 5 14 9 8 47
023 Chemistry: Physical Processes 5 5 13 7 14 44
168 Farriery 7 9 8 6 12 42
157 Wheelwright Machines 7 5 5 7 15 39
201 Distillation: Processes, Thermolytic 5 14 12 3 5 39
289 Knots and Knot Tying 5 9 3 7 5 29
171 Unearthing Plants or Buried Objects 5 5 6 2 7 25
295 Railway Wheels and Axles 4 4 0 9 2 19
449 Bee Culture (propagating, raising, caring for bees) 3 7 3 3 3 19
185 Motors: Spring, Weight, or Animal Powered 0 4 3 5 4 16
196 Mineral Oils: Apparatus 2 4 5 2 3 16
217 Wooden Receptacles 2 0 5 5 3 15
142 Wood Turning 3 2 1 5 2 13
462 Books, Strips, and Leaves for Manifolding 2 2 2 3 3 12
260 Chemistry of Carbon Compounds 1 3 4 0 3 11
069 Leather Manufactures 2 3 1 2 2 10
334 Tuners 0 0 4 4 1 9
231 Whips and Whip Apparatus 0 1 0 0 4 5
291 Track Sanders 3 0 0 0 1 4
163 Needle and Pin Making 1 1 0 0 1 3
079 Button Making 0 0 0 1 1 2
245 Wire Fabrics and Structure 0 0 1 0 1 2
147 Coopering 0 0 1 0 0 1
ALL ALL CLASSES 109645 111983 147519 153485 157497 680129



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Last Modified: April 30, 2001