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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In U.S. Metropolitan and Micropolitan Areas
Breakout By Technology Class

Count of 2000 - 2015 Utility Patent Grants
As Distributed 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 METROPOLITAN AREAS

( Metropolitan Statistical Area )

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to a patent- see 'Explanation of Data' )
( some classes have been combined together under a single class identifier )
( patent counts may not sum exactly due to rounding - see the Explanation of Data )
( regional areas are based on U.S. Core Based Statistical Area (CBSA) )

The following table displays technology classes and counts of utility patents classified in them; patents are distributed by year of patent grant.
Class Class Title 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 3798 4052 4256 3966 2902 2538 3176 2834 2620 2949 4087 3956 4995 5923 6536 6882 65469
370 Multiplex Communications 1076 1111 1236 1365 1692 1602 2292 1839 2447 2962 4005 4067 4204 4441 5257 5101 44694
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 879 875 924 915 1206 1167 1788 1693 1952 2386 3197 3296 3536 3509 4575 4213 36108
438 Semiconductor Device Manufacturing: Process 1986 2429 2494 2298 2275 1995 2060 1995 1798 1849 2342 2132 1889 2037 2418 1869 33866
455 Telecommunications 995 927 867 895 1098 1084 1935 1703 1467 1657 2114 2661 3571 3941 3992 3855 32760
435 Chemistry: Molecular Biology and Microbiology 2228 2498 2241 1953 1698 1490 1888 1718 1544 1569 2106 2092 2074 2164 2330 2109 31700
707 DP: Database and File Management or Data Structures (Data Processing) 687 694 949 997 991 833 1256 1103 1274 1776 3109 2920 3364 3439 3867 3766 31024
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1080 1220 1375 1705 1813 1683 1689 1521 1451 1447 2047 2004 1931 2360 2686 3206 29216
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 600 395 365 368 260 604 1004 939 1277 1627 3317 3367 4025 4862 3990 1711 28710
128 Surgery (includes Class 600) 1667 1497 1576 1676 1312 1008 1165 1004 875 1035 1625 1819 2134 2575 2717 2482 26164
606 Surgery (instruments) 1200 1041 932 1183 834 700 794 748 569 767 1429 1718 2149 2479 2524 2745 21809
532 Organic Compounds (includes Classes 532-570) 1340 1404 1543 1160 1013 914 1252 1000 1108 1205 1388 1405 1561 1692 1720 1425 21129
382 Image Analysis 584 726 606 789 908 652 1078 1022 1063 1202 1495 1541 1971 2046 2161 2023 19864
375 Pulse or Digital Communications 676 677 760 805 865 799 1229 1073 1147 1150 1398 1336 1779 1797 1927 2002 19419
345 Computer Graphics Processing and Selective Visual Display Systems 775 895 842 819 925 840 1187 920 821 932 1090 1151 1440 1787 2146 2441 19009
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1447 1544 1548 1360 1154 965 1042 904 755 825 1184 1197 1035 1235 1295 1151 18640
340 Communications: Electrical 907 837 756 608 891 877 1369 1047 1187 1160 1257 1304 1545 1623 1634 1611 18610
711 Memory (Electrical Computers and Digital Processing Systems) 646 752 845 869 944 901 1140 920 1057 1024 1085 1169 1391 1388 1674 1870 17674
714 Error Detection/Correction and Fault Detection/Recovery 590 625 610 824 818 736 1090 1116 1169 1209 1391 1292 1299 1467 1468 1583 17286
713 Support (Electrical Computers and Digital Processing Systems) 348 416 374 457 575 649 1064 977 1080 1125 1334 1239 1431 1593 1887 1750 16298
428 Stock Material or Miscellaneous Articles 1247 1233 1281 1353 1247 970 772 760 615 611 900 1047 970 1001 919 1042 15967
604 Surgery (Medicators and Receptors) 851 893 814 1158 789 602 579 472 468 604 1187 1238 1510 1701 1571 1518 15952
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 525 519 486 476 460 546 762 722 751 966 1147 1032 1260 1454 1857 1909 14869
365 Static Information Storage and Retrieval 776 810 755 841 848 836 877 894 878 852 893 967 897 989 1109 1075 14296
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 349 530 570 564 587 524 474 481 479 506 726 929 1369 1770 2005 2360 14222
361 Electricity: Electrical Systems and Devices 768 832 975 947 851 681 739 830 803 838 891 877 849 919 1015 1105 13919
073 Measuring and Testing 778 750 809 978 796 833 920 835 880 778 830 787 830 861 837 894 13394
726 Information Security 162 162 102 96 159 171 376 428 463 681 929 1003 1404 1931 2526 2783 13375
250 Radiant Energy 509 651 672 735 791 672 987 792 928 880 902 735 857 1028 1086 957 13181
324 Electricity: Measuring and Testing 641 778 1005 916 923 859 986 851 799 773 810 740 696 719 811 750 13056
702 DP: Measuring, Calibrating, or Testing (Data Processing) 330 339 595 815 920 889 1003 883 825 763 868 944 1004 982 876 755 12789
439 Electrical Connectors 936 846 793 702 815 727 847 748 865 801 860 804 626 695 612 697 12372
379 Telephonic Communications 608 667 685 702 882 643 909 668 533 546 667 823 979 1093 1109 788 12302
385 Optical Waveguides 435 685 887 1006 1051 998 959 893 818 643 626 422 472 586 641 640 11760
348 Television 418 410 414 434 433 373 547 435 439 515 633 669 1057 1164 1558 2019 11517
607 Surgery: Light, Thermal, and Electrical Application 392 432 437 472 438 411 576 583 378 501 825 931 1099 1307 1398 1017 11197
359 Optical: Systems and Elements 644 683 735 770 790 769 836 690 686 590 721 625 597 559 689 569 10951
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 739 656 619 685 857 617 736 519 569 645 793 686 686 616 729 647 10799
717 DP: Software Development, Installation, and Management (Data Processing) 299 385 278 258 299 366 559 523 511 611 906 709 955 1262 1354 1268 10541
029 Metal Working 621 685 624 658 630 566 702 566 464 521 675 671 759 711 838 761 10451
356 Optics: Measuring and Testing 519 374 429 636 633 563 771 768 841 746 752 688 620 681 643 668 10328
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 417 504 478 542 516 377 456 393 339 442 668 824 921 1045 1143 1145 10207
360 Dynamic Magnetic Information Storage or Retrieval 587 597 652 637 779 586 784 620 533 533 542 565 562 492 846 681 9995
700 DP: Generic Control Systems or Specific Applications (Data Processing) 265 362 454 543 608 494 641 482 454 449 655 707 779 945 1051 1049 9934
280 Land Vehicles 723 703 656 574 543 577 540 553 520 537 707 597 563 670 742 694 9900
052 Static Structures (e.g., Buildings) 655 657 608 507 499 426 365 298 268 382 716 567 734 895 985 883 9443
362 Illumination 463 484 465 476 420 442 549 581 450 500 625 579 657 787 834 870 9179
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 342 291 302 430 433 338 590 586 652 654 727 717 727 829 746 724 9087
210 Liquid Purification or Separation 683 679 556 543 590 494 495 540 489 462 548 538 612 538 568 516 8848
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 574 677 706 660 580 519 615 515 402 433 471 418 425 557 639 548 8736
060 Power Plants 310 417 479 426 432 419 472 338 301 401 555 606 747 909 948 968 8728
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 331 390 314 381 420 316 482 442 456 451 677 556 697 775 907 999 8592
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 324 351 316 275 314 269 400 481 393 514 542 599 792 863 882 879 8192
123 Internal-Combustion Engines 427 563 600 555 537 526 553 502 490 395 454 411 460 524 553 555 8104
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 144 242 338 454 397 382 641 464 522 502 584 653 679 764 744 399 7908
463 Amusement Devices: Games 129 186 163 249 262 231 195 212 294 256 542 617 1064 1183 1224 1027 7833
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 281 379 326 259 288 234 495 461 457 440 490 568 662 797 804 750 7690
473 Games Using Tangible Projectile 381 378 423 425 390 396 456 401 355 364 525 552 614 603 668 641 7570
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 359 386 374 402 343 277 276 337 332 359 582 588 660 622 661 550 7104
725 Interactive Video Distribution Systems 111 140 113 146 159 118 242 194 159 299 454 519 625 947 1501 1345 7071
427 Coating Processes 536 468 471 514 430 340 245 278 271 358 522 467 576 506 540 550 7070
347 Incremental Printing of Symbolic Information 437 584 638 590 478 377 315 296 277 224 353 332 440 518 582 410 6852
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 399 387 356 342 310 296 476 620 602 472 527 486 396 425 416 294 6804
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 553 564 535 592 467 358 340 316 231 206 323 421 441 525 499 427 6796
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 300 364 361 369 362 293 305 271 243 296 507 466 514 555 655 715 6575
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 645 637 583 559 505 355 436 356 315 305 403 329 290 294 293 222 6525
358 Facsimile and Static Presentation Processing 244 222 254 277 276 293 449 393 403 401 440 462 578 631 613 432 6366
219 Electric Heating 524 527 508 449 482 394 427 383 234 194 292 237 359 439 474 379 6301
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 468 489 404 478 469 336 307 236 226 248 488 437 399 380 454 359 6175
062 Refrigeration 412 508 536 525 383 304 387 399 267 230 319 320 257 347 342 409 5944
248 Supports (e.g., for holding articles, etc.) 492 400 472 452 275 234 287 276 219 313 446 370 411 376 383 510 5915
137 Fluid Handling 482 525 376 357 318 354 354 263 237 232 274 250 359 412 450 618 5859
206 Special Receptacle or Package 507 416 368 337 295 336 290 249 336 267 369 356 354 358 430 452 5718
296 Land Vehicles: Bodies and Tops 341 376 303 343 363 360 403 385 331 300 404 290 351 370 392 377 5686
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 195 178 127 125 180 264 444 345 344 380 446 472 519 453 524 455 5450
174 Electricity: Conductors and Insulators 274 476 460 360 324 359 344 332 318 305 285 270 290 299 357 389 5439
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 297 330 353 352 347 256 321 294 318 368 359 429 408 287 284 323 5323
343 Communications: Radio Wave Antennas 315 394 401 293 281 380 364 283 288 290 308 286 292 334 368 314 5189
341 Coded Data Generation or Conversion 224 372 397 378 351 327 387 375 374 303 322 270 222 289 288 286 5163
381 Electrical Audio Signal Processing Systems and Devices 178 135 135 164 192 136 264 221 180 198 266 384 703 541 581 859 5135
706 DP: Artificial Intelligence (Data Processing) 85 89 104 182 113 143 165 151 239 349 459 528 540 630 685 625 5085
326 Electronic Digital Logic Circuitry 359 394 383 356 351 345 346 392 357 328 384 277 170 248 155 202 5046
244 Aeronautics and Astronautics 290 298 276 284 276 255 243 230 194 233 286 385 402 415 402 516 4981
398 Optical Communications 143 148 188 219 177 168 290 299 270 323 321 378 382 445 501 586 4837
310 Electrical Generator or Motor Structure 295 310 283 262 403 337 286 211 255 300 344 310 290 323 288 267 4762
436 Chemistry: Analytical and Immunological Testing 228 254 290 294 261 236 202 253 251 272 379 410 394 378 362 280 4741
482 Exercise Devices 273 249 231 231 215 177 302 233 231 329 434 443 271 247 365 406 4636
297 Chairs and Seats 350 230 257 302 318 222 285 237 251 241 304 289 273 293 344 424 4617
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 76 94 90 93 147 142 189 145 164 198 296 295 535 646 668 811 4589
315 Electric Lamp and Discharge Devices: Systems 244 251 265 271 222 194 209 182 170 160 165 245 359 458 524 656 4576
426 Food or Edible Material: Processes, Compositions, and Products 515 495 394 376 289 174 212 171 127 156 220 241 272 306 261 351 4558
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 378 377 283 224 255 254 259 241 290 263 340 345 242 256 222 275 4503
015 Brushing, Scrubbing, and General Cleaning 354 270 260 254 211 187 202 225 217 194 312 277 263 367 330 330 4251
002 Apparel 397 360 336 220 264 228 270 166 142 126 263 282 287 295 294 317 4246
451 Abrading 328 456 418 414 354 386 409 252 138 121 117 139 154 182 170 182 4218
005 Beds 231 227 217 259 261 256 250 189 248 210 268 235 268 315 368 330 4129
330 Amplifiers 229 232 282 326 323 221 324 325 266 255 266 228 189 208 207 248 4128
222 Dispensing (apparatus and process) 340 380 326 233 238 219 232 176 123 140 254 220 279 328 320 299 4104
378 X-Ray or Gamma Ray Systems or Devices 216 277 312 215 223 213 276 264 266 306 284 241 214 198 237 311 4052
204 Chemistry: Electrical and Wave Energy 334 366 354 291 248 208 168 171 148 148 222 211 275 290 301 300 4034
220 Receptacles 273 274 226 167 148 122 173 134 119 173 219 283 306 408 445 466 3935
372 Coherent Light Generators 240 242 210 298 394 270 275 201 204 224 254 207 183 189 229 277 3894
423 Chemistry of Inorganic Compounds 193 188 193 205 184 152 218 184 188 235 355 278 288 347 344 313 3863
239 Fluid Sprinkling, Spraying, and Diffusing 347 239 234 274 274 253 268 188 129 150 221 179 178 197 253 316 3699
180 Motor Vehicles 174 181 211 225 174 191 186 202 196 217 291 273 278 312 273 245 3626
252 Compositions 257 229 174 245 201 130 198 158 186 169 220 264 254 299 306 334 3623
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 74 124 129 105 200 198 234 137 253 285 283 269 329 346 344 301 3611
380 Cryptography 123 125 83 54 76 139 219 220 163 257 280 289 330 372 406 320 3454
119 Animal Husbandry 216 220 255 270 180 186 197 175 155 147 199 230 248 254 264 243 3437
415 Rotary Kinetic Fluid Motors or Pumps 117 125 201 164 141 162 184 126 120 138 185 205 413 308 375 386 3349
318 Electricity: Motive Power Systems 253 213 201 180 206 179 241 196 184 183 177 209 213 231 252 216 3333
134 Cleaning and Liquid Contact with Solids 248 222 261 288 207 170 145 148 138 154 178 196 205 226 242 245 3270
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 283 290 309 268 233 160 182 147 162 155 196 193 196 164 188 141 3267
307 Electrical Transmission or Interconnection Systems 151 120 128 140 131 69 135 113 132 208 260 292 292 292 323 353 3135
175 Boring or Penetrating the Earth 161 194 172 149 138 113 153 143 165 168 240 252 237 248 277 289 3098
323 Electricity: Power Supply or Regulation Systems 148 166 150 155 146 136 188 161 178 195 229 239 239 248 261 249 3088
320 Electricity: Battery or Capacitor Charging or Discharging 182 182 139 117 97 106 68 80 103 202 240 226 293 287 292 435 3047
351 Optics: Eye Examining, Vision Testing and Correcting 160 147 125 155 143 138 158 172 211 178 207 217 186 207 281 277 2960
033 Geometrical Instruments 163 193 213 200 197 215 207 208 185 182 209 188 147 152 153 135 2946
084 Music 186 144 130 115 123 95 139 173 183 228 258 213 211 196 252 249 2894
416 Fluid Reaction Surfaces (i.e., Impellers) 114 139 162 117 113 109 132 124 128 145 176 272 303 248 285 275 2840
434 Education and Demonstration 214 162 182 208 177 156 134 119 84 89 98 135 216 309 327 225 2835
399 Electrophotography 176 200 192 197 177 135 180 198 149 127 192 206 210 178 172 133 2822
273 Amusement Devices: Games 219 222 218 218 151 139 160 173 173 165 193 145 141 191 172 84 2763
333 Wave Transmission Lines and Networks 131 112 163 228 221 207 193 170 156 150 190 161 129 135 161 246 2751
417 Pumps 262 250 247 207 145 100 135 95 92 94 104 147 246 214 211 204 2750
708 Arithmetic Processing and Calculating (Electrical Computers) 180 173 155 149 171 145 203 124 172 146 163 168 163 281 165 190 2747
004 Baths, Closets, Sinks, and Spittoons 223 220 244 194 197 155 140 118 99 84 124 173 230 148 167 221 2734
118 Coating Apparatus 272 274 241 216 168 134 124 108 106 110 146 152 181 180 192 120 2724
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 194 158 180 175 161 164 150 142 124 158 200 158 169 195 215 165 2708
211 Supports: Racks 214 212 201 202 167 162 154 135 76 80 138 173 164 175 209 232 2691
414 Material or Article Handling 285 203 225 226 182 126 131 115 93 113 141 134 137 139 175 265 2688
433 Dentistry 222 266 219 150 159 153 197 157 105 62 119 145 150 196 176 192 2667
405 Hydraulic and Earth Engineering 163 152 173 176 162 161 209 124 143 130 155 141 150 195 239 188 2656
363 Electric Power Conversion Systems 202 201 193 142 122 126 125 110 119 140 164 176 171 191 206 265 2650
040 Card, Picture, or Sign Exhibiting 181 169 178 214 181 134 137 142 160 121 153 176 170 143 216 168 2640
114 Ships 190 184 170 174 146 202 208 174 142 118 133 120 131 125 167 205 2588
106 Compositions: Coating or Plastic 178 184 199 190 206 115 144 139 127 119 189 148 174 150 134 147 2541
095 Gas Separation: Processes 119 110 159 182 124 99 117 101 135 112 159 199 229 266 232 170 2513
313 Electric Lamp and Discharge Devices 177 162 167 225 218 149 154 127 102 116 160 159 184 166 146 102 2510
053 Package Making 209 171 158 176 193 187 158 111 168 150 144 151 146 130 93 127 2472
585 Chemistry of Hydrocarbon Compounds 114 110 133 96 100 79 100 128 146 144 161 188 207 247 238 245 2436
475 Planetary Gear Transmission Systems or Components 87 54 78 126 145 89 143 169 130 116 181 213 206 255 225 194 2411
331 Oscillators 122 148 109 170 173 142 179 183 170 180 186 148 139 103 138 116 2406
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 153 186 158 145 161 106 172 178 125 116 143 154 158 140 175 131 2399
198 Conveyors: Power-Driven 162 186 195 179 140 144 154 148 126 117 140 125 116 144 154 160 2388
036 Boots, Shoes, and Leggings 139 107 101 103 113 126 148 116 137 122 195 162 182 187 223 219 2379
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 156 236 195 158 168 123 110 96 78 101 113 129 157 174 144 193 2329
446 Amusement Devices: Toys 231 181 185 250 181 116 105 91 77 78 131 136 105 116 147 160 2288
074 Machine Element or Mechanism 233 197 148 146 104 86 93 113 66 98 110 108 158 161 175 252 2244
042 Firearms 49 101 122 114 99 72 85 91 90 87 155 186 190 221 290 280 2230
043 Fishing, Trapping, and Vermin Destroying 198 135 169 201 166 148 121 103 95 88 145 114 103 127 148 158 2217
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 149 182 162 162 196 158 154 134 73 88 119 94 123 149 132 122 2194
165 Heat Exchange 146 154 139 125 180 176 229 126 92 74 104 101 108 107 92 176 2128
224 Package and Article Carriers 179 180 176 154 165 99 75 63 57 39 95 95 129 148 193 273 2117
216 Etching a Substrate: Processes 122 118 137 134 130 113 123 106 101 88 85 105 158 206 201 150 2077
024 Buckles, Buttons, Clasps, Etc. 146 155 183 157 100 80 114 110 100 93 106 100 126 163 142 148 2021
081 Tools 190 211 133 114 119 126 178 159 81 48 94 104 82 127 135 108 2006
369 Dynamic Information Storage or Retrieval 147 129 104 140 113 103 100 83 88 75 95 137 139 212 147 187 1999
602 Surgery: Splint, Brace, or Bandage 157 116 105 126 99 114 122 78 71 106 152 168 169 135 165 104 1986
367 Communications, Electrical: Acoustic Wave Systems and Devices 141 97 85 88 90 83 96 115 108 125 142 122 147 160 167 218 1980
030 Cutlery 160 142 148 146 126 110 126 87 76 82 115 119 106 127 154 115 1938
162 Paper Making and Fiber Liberation 164 178 185 137 111 72 90 89 68 76 124 133 143 128 138 103 1938
285 Pipe Joints or Couplings 132 133 154 128 126 113 134 73 120 133 131 104 103 102 126 117 1927
251 Valves and Valve Actuation 166 111 104 120 125 162 166 94 63 76 95 80 126 130 129 161 1906
386 Motion Video Signal Processing for Recording or Reproducing 57 59 73 66 74 67 75 116 95 86 97 86 176 196 301 278 1902
290 Prime-Mover Dynamo Plants 37 52 48 47 84 73 112 106 113 125 123 174 177 201 229 178 1877
083 Cutting 144 141 99 125 148 96 139 89 62 83 113 112 128 125 125 120 1849
242 Winding, Tensioning, or Guiding 190 155 180 163 147 105 121 107 112 68 81 88 63 73 91 106 1848
072 Metal Deforming 135 142 95 115 112 109 177 132 111 104 85 105 103 118 95 110 1846
208 Mineral Oils: Processes and Products 133 114 104 91 84 62 77 73 92 94 149 141 127 171 178 137 1827
228 Metal Fusion Bonding 170 167 138 123 113 115 85 68 99 76 119 109 106 105 90 87 1769
200 Electricity: Circuit Makers and Breakers 123 86 104 116 157 121 140 94 111 105 84 90 100 99 113 124 1765
099 Foods and Beverages: Apparatus 162 149 118 123 108 71 86 50 73 70 98 92 103 139 169 128 1737
136 Batteries: Thermoelectric and Photoelectric 79 87 57 54 46 25 33 45 31 55 106 141 178 166 270 352 1725
188 Brakes 106 164 176 130 95 102 112 77 59 85 69 72 91 127 116 142 1721
089 Ordnance 47 69 64 79 73 54 51 49 74 86 124 162 178 178 185 174 1644
294 Handling: Hand and Hoist-Line Implements 152 121 131 92 48 57 94 85 71 68 99 100 96 151 143 133 1640
227 Elongated-Member-Driving Apparatus 48 49 39 49 68 48 66 63 57 87 126 172 192 214 180 179 1636
070 Locks 138 112 132 140 106 100 93 75 92 69 75 89 88 97 100 103 1608
102 Ammunition and Explosives 76 111 105 106 78 81 87 61 87 80 103 118 125 140 122 128 1605
055 Gas Separation 95 87 102 78 75 68 55 92 107 109 125 149 130 138 104 90 1604
047 Plant Husbandry 155 128 143 138 83 71 68 47 31 64 106 99 114 121 108 120 1595
396 Photography 153 118 108 119 117 54 56 45 68 86 128 104 118 114 129 68 1585
148 Metal Treatment 142 152 145 145 104 79 72 62 55 77 98 73 91 101 99 69 1564
401 Coating Implements with Material Supply 108 139 102 104 98 80 92 94 71 62 77 61 126 112 123 99 1546
312 Supports: Cabinet Structure 145 106 126 132 106 89 76 49 46 45 73 65 94 90 115 175 1530
160 Flexible or Portable Closure, Partition, or Panel 160 123 102 99 100 81 82 69 42 59 72 68 82 95 115 134 1483
277 Seal for a Joint or Juncture 125 145 151 125 102 90 74 42 59 31 59 71 82 83 101 124 1463
101 Printing 145 137 126 130 168 81 117 54 50 45 45 48 48 75 92 102 1460
404 Road Structure, Process, or Apparatus 79 59 84 87 90 63 111 89 90 79 105 95 98 110 113 107 1459
241 Solid Material Comminution or Disintegration 86 63 75 85 54 64 86 103 71 97 108 139 111 96 118 100 1455
349 Liquid Crystal Cells, Elements and Systems 106 92 73 99 93 97 76 59 62 69 69 92 109 113 93 146 1448
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 86 103 76 92 102 116 97 75 65 72 111 67 109 113 90 59 1433
374 Thermal Measuring and Testing 94 70 75 80 62 71 86 46 82 94 110 76 140 104 110 107 1406
366 Agitating (e.g., of articles and materials) 95 100 81 87 90 76 71 88 88 64 81 87 115 94 103 81 1400
353 Optics: Image Projectors 22 43 58 84 104 98 128 113 121 79 62 111 110 96 93 75 1397
056 Harvesters 126 100 104 103 89 98 82 59 62 82 117 95 84 59 62 75 1396
108 Horizontally Supported Planar Surfaces 120 100 103 96 99 75 71 48 49 60 77 79 114 107 99 94 1388
292 Closure Fasteners 117 53 105 116 71 69 87 81 69 63 81 57 73 121 123 99 1385
126 Stoves and Furnaces 121 103 70 85 95 84 40 24 31 37 92 86 103 132 138 138 1377
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 92 87 107 107 85 79 99 61 41 61 84 80 79 108 100 102 1370
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 125 96 64 112 106 68 56 65 74 89 142 122 80 65 50 56 1370
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 105 103 82 72 86 80 84 58 59 44 86 86 78 122 111 114 1368
132 Toilet 146 125 95 86 66 38 42 72 40 41 51 73 94 112 111 144 1335
209 Classifying, Separating, and Assorting Solids 103 111 90 87 88 70 61 68 71 53 71 79 71 82 115 106 1326
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 116 114 142 174 83 63 7 6 22 23 33 43 25 43 110 306 1310
181 Acoustics 89 59 75 79 58 56 36 56 74 81 89 113 100 122 107 104 1298
229 Envelopes, Wrappers, and Paperboard Boxes 134 121 98 82 42 67 51 58 52 65 92 75 57 78 109 115 1294
049 Movable or Removable Closures 111 90 83 68 89 68 63 39 42 41 60 56 82 120 130 148 1290
182 Fire Escape, Ladder, or Scaffold 102 70 104 84 95 85 90 65 37 21 51 62 101 109 115 99 1287
096 Gas Separation: Apparatus 63 62 75 74 77 54 51 58 62 81 93 91 115 111 110 100 1277
271 Sheet Feeding or Delivering 93 125 87 116 74 60 57 49 66 80 95 90 77 79 50 31 1229
403 Joints and Connections 108 128 120 106 90 67 53 38 55 39 51 45 60 57 86 125 1227
601 Surgery: Kinesitherapy 60 85 67 62 65 52 73 75 75 47 55 74 89 104 113 129 1224
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 92 98 76 79 70 34 32 40 51 59 108 108 83 95 98 97 1220
034 Drying and Gas or Vapor Contact with Solids 150 105 92 72 87 81 79 36 52 24 36 61 66 78 91 84 1193
254 Implements or Apparatus for Applying Pushing or Pulling Force 76 80 66 90 66 74 90 70 69 61 64 61 74 103 74 77 1192
192 Clutches and Power-Stop Control 90 68 67 82 82 54 86 66 57 43 51 63 67 81 100 120 1177
124 Mechanical Guns and Projectors 65 55 44 66 96 58 50 57 49 43 94 86 82 112 113 106 1174
221 Article Dispensing 76 107 69 109 81 65 100 70 54 46 73 68 48 61 66 74 1164
431 Combustion 120 105 99 95 96 92 54 44 31 57 56 50 48 66 71 80 1163
135 Tent, Canopy, Umbrella, or Cane 68 99 72 44 64 42 51 61 49 77 92 97 70 78 84 93 1140
215 Bottles and Jars 97 76 72 63 54 61 59 55 46 43 74 70 81 89 103 86 1128
164 Metal Founding 50 76 99 113 70 75 78 81 46 42 53 66 76 55 75 68 1122
138 Pipes and Tubular Conduits 109 92 70 71 56 57 47 45 38 60 57 69 56 70 77 115 1087
440 Marine Propulsion 70 108 99 81 68 68 85 69 64 50 52 46 39 45 53 65 1060
454 Ventilation 92 101 85 87 81 64 58 31 30 51 44 43 40 69 71 89 1035
336 Inductor Devices 42 47 55 51 56 80 84 71 40 47 69 96 65 65 80 69 1017
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 70 70 56 71 79 73 65 75 66 48 53 45 63 66 65 38 1003
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 81 78 86 82 74 47 39 41 53 55 62 57 57 57 75 60 1003
400 Typewriting Machines 96 85 110 92 103 98 74 55 38 31 35 37 32 30 50 37 1002
384 Bearings 62 79 74 71 51 51 51 39 46 42 42 40 44 94 102 110 997
355 Photocopying 56 53 55 72 76 94 88 74 57 35 45 54 38 53 65 56 971
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 89 70 69 82 80 41 55 39 33 47 56 60 59 63 63 49 955
477 Interrelated Power Delivery Controls, Including Engine Control 50 40 41 43 29 37 41 50 39 52 68 66 97 99 109 93 954
269 Work Holders 81 64 69 63 48 51 43 33 19 13 32 56 78 97 95 69 911
261 Gas and Liquid Contact Apparatus 61 65 51 61 58 32 60 41 48 43 45 63 79 64 71 64 905
507 Earth Boring, Well Treating, and Oil Field Chemistry 42 40 22 36 36 28 45 40 35 67 88 112 79 63 81 85 899
383 Flexible Bags 100 94 72 52 45 64 48 42 30 37 37 35 46 56 55 67 880
065 Glass Manufacturing 69 86 73 69 82 36 32 35 36 27 44 54 57 43 74 62 879
044 Fuel and Related Compositions 61 56 41 50 57 28 15 35 34 52 56 64 61 87 89 92 877
410 Freight Accommodation On Freight Carrier 57 55 43 59 62 49 55 48 48 44 65 56 60 60 54 54 868
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 99 63 47 76 71 62 54 41 59 46 47 40 45 48 33 34 865
441 Buoys, Rafts, and Aquatic Devices 53 52 61 55 55 54 71 59 46 32 46 36 41 43 67 72 841
504 Plant Protecting and Regulating Compositions 81 71 59 47 37 31 24 17 11 13 22 31 70 96 85 128 823
037 Excavating 68 62 69 56 53 42 44 32 18 45 81 45 50 36 45 72 817
376 Induced Nuclear Reactions: Processes, Systems, and Elements 39 62 50 48 45 33 23 11 18 46 35 44 53 87 114 99 807
152 Resilient Tires and Wheels 49 45 78 58 46 42 53 37 35 31 32 40 55 53 70 71 795
392 Electric Resistance Heating Devices 72 60 49 36 49 61 58 52 20 22 47 52 59 56 59 31 782
368 Horology: Time Measuring Systems or Devices 42 65 47 54 59 43 66 51 60 35 59 58 30 46 44 22 780
131 Tobacco 42 28 31 33 44 26 18 26 20 24 65 59 48 87 85 117 753
267 Spring Devices 63 68 83 51 42 31 31 29 38 25 25 36 51 56 62 56 746
408 Cutting by Use of Rotating Axially Moving Tool 41 65 49 51 28 34 50 49 28 38 35 35 39 44 62 44 691
172 Earth Working 65 62 50 40 47 51 42 23 11 33 49 41 33 36 57 48 688
501 Compositions: Ceramic 54 67 49 50 45 41 48 28 22 42 62 41 37 29 35 32 682
169 Fire Extinguishers 60 23 37 30 22 32 39 26 34 27 61 29 36 53 80 66 655
301 Land Vehicles: Wheels and Axles 55 60 66 57 46 42 48 29 35 27 37 31 17 33 31 38 651
303 Fluid-Pressure and Analogous Brake Systems 64 81 67 56 36 36 40 28 37 28 43 31 33 25 19 25 649
452 Butchering 55 52 28 34 25 31 58 40 48 45 42 41 29 35 45 26 632
116 Signals and Indicators 39 42 51 39 45 41 29 35 33 40 55 28 34 26 38 51 625
418 Rotary Expansible Chamber Devices 93 62 47 40 36 23 25 23 18 27 27 35 48 28 40 56 625
236 Automatic Temperature and Humidity Regulation 36 42 36 36 36 31 34 39 26 32 57 47 32 43 45 46 618
048 Gas: Heating and Illuminating 12 9 2 15 19 15 23 30 35 43 42 57 80 82 80 70 613
472 Amusement Devices 39 28 32 37 32 32 26 22 23 17 53 49 49 52 68 53 612
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 43 64 37 32 42 37 51 21 31 26 23 40 46 44 34 34 605
474 Endless Belt Power Transmission Systems or Components 57 41 47 49 31 32 35 29 16 17 39 40 41 45 29 46 594
105 Railway Rolling Stock 37 51 46 40 30 31 28 24 26 32 39 42 33 44 42 34 579
256 Fences 43 49 33 49 31 42 43 25 33 36 31 25 24 32 29 31 556
445 Electric Lamp or Space Discharge Component or Device Manufacturing 67 46 48 58 48 41 45 21 17 25 27 24 25 19 24 17 552
051 Abrasive Tool Making Process, Material, or Composition 30 39 36 43 37 20 13 26 15 27 7 39 32 39 71 71 545
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 44 42 51 27 21 19 26 35 21 31 27 38 43 38 41 38 542
092 Expansible Chamber Devices 26 48 58 48 31 34 38 41 34 24 20 23 16 31 23 45 540
104 Railways 32 43 44 44 21 21 20 16 24 28 38 34 44 51 28 42 530
223 Apparel Apparatus 63 57 40 29 34 29 23 42 29 12 26 25 28 22 28 35 521
283 Printed Matter 93 81 47 35 44 25 21 17 16 8 21 30 14 29 25 17 519
144 Woodworking 46 39 46 45 24 21 40 28 35 29 48 61 25 18 4 10 517
173 Tool Driving or Impacting 28 34 21 28 27 25 37 21 25 29 35 30 41 42 37 46 506
450 Foundation Garments 35 31 33 15 24 28 28 28 22 22 33 32 50 42 49 27 499
149 Explosive and Thermic Compositions or Charges 51 38 27 36 34 36 17 2 5 8 24 51 55 50 30 17 481
111 Planting 34 34 25 39 35 23 28 28 27 33 33 20 20 29 33 37 478
100 Presses 25 23 17 36 28 34 35 35 35 26 24 34 21 35 35 32 475
122 Liquid Heaters and Vaporizers 41 36 28 37 32 32 22 23 30 25 27 21 22 27 33 25 460
177 Weighing Scales 27 32 43 37 42 27 31 40 21 30 22 18 18 15 31 22 456
112 Sewing 38 55 25 21 35 26 29 21 29 24 24 21 37 19 24 26 454
409 Gear Cutting, Milling, or Planing 54 25 40 20 23 32 32 28 27 15 16 20 15 21 27 42 437
063 Jewelry 29 21 41 38 31 15 27 28 26 17 22 16 21 25 27 33 417
266 Metallurgical Apparatus 41 29 26 27 20 19 14 17 16 31 21 29 35 34 28 28 415
293 Vehicle Fenders 14 31 26 31 31 33 31 30 25 26 18 18 24 17 20 32 407
110 Furnaces 32 45 38 22 19 36 30 17 16 14 24 13 25 19 28 24 402
014 Bridges 21 16 29 20 24 19 22 22 16 21 15 33 25 38 39 17 377
184 Lubrication 33 28 27 21 14 17 22 14 9 7 21 25 22 42 38 35 375
419 Powder Metallurgy Processes 31 33 19 30 22 18 13 15 21 27 29 18 25 17 30 24 371
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 26 26 20 38 25 11 19 10 15 6 14 25 35 33 24 39 366
338 Electrical Resistors 39 32 30 28 19 15 35 26 14 8 26 15 28 26 10 10 361
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 33 40 29 31 20 12 19 19 14 22 39 22 19 16 13 11 359
322 Electricity: Single Generator Systems 23 24 14 17 16 18 30 24 31 30 21 31 28 16 20 15 358
249 Static Molds 20 29 24 30 44 22 35 25 11 14 16 21 16 13 17 15 352
588 Hazardous or Toxic Waste Destruction or Containment 34 36 32 18 9 11 15 15 14 17 22 33 24 17 16 26 339
505 Superconductor Technology: Apparatus, Material, Process 34 31 24 24 15 14 10 9 7 11 19 15 16 43 38 26 335
337 Electricity: Electrothermally or Thermally Actuated Switches 31 15 24 45 35 22 7 14 20 24 24 23 16 8 10 14 332
082 Turning (e.g., for metal working) 22 37 21 37 16 14 14 13 16 21 25 23 25 15 11 18 328
299 Mining or In Situ Disintegration of Hard Material 16 14 16 12 13 9 16 10 39 18 20 33 24 32 35 17 324
091 Motors: Expansible Chamber Type 16 40 27 32 31 28 25 23 11 15 9 13 11 10 13 18 321
194 Check-Actuated Control Mechanisms 44 34 13 20 18 25 14 11 6 11 22 14 20 26 29 14 320
071 Chemistry: Fertilizers 18 26 35 15 13 10 7 4 4 12 24 22 25 24 35 46 320
407 Cutters, for Shaping 25 14 14 30 28 17 25 16 19 18 8 24 13 19 21 18 309
007 Compound Hand Tools 27 27 24 19 23 27 26 16 7 11 10 16 12 16 17 30 307
432 Heating 33 43 36 44 21 19 12 10 14 6 10 14 7 9 8 20 305
068 Textiles: Fluid Treating Apparatus 20 17 23 23 7 8 8 17 16 26 23 25 14 20 28 29 304
125 Stone Working 26 34 24 10 20 21 28 15 15 6 19 14 15 17 20 17 301
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 11 11 14 31 32 28 1 0 0 5 17 15 29 33 38 34 299
246 Railway Switches and Signals 20 20 21 25 16 9 16 10 12 10 21 14 22 18 25 39 298
190 Trunks and Hand-Carried Luggage 22 21 17 28 14 17 26 13 15 13 8 22 18 27 18 19 298
494 Imperforate Bowl: Centrifugal Separators 26 19 22 27 20 10 21 8 11 13 13 21 27 17 12 25 291
460 Crop Threshing or Separating 11 19 15 16 24 16 15 16 18 24 23 22 17 10 19 25 290
232 Deposit and Collection Receptacles 11 19 15 12 19 19 31 42 32 17 15 13 13 10 12 10 290
279 Chucks or Sockets 23 37 14 29 15 17 8 11 15 13 13 15 15 13 28 18 284
066 Textiles: Knitting 28 29 15 14 20 19 20 10 10 21 15 22 10 17 10 19 278
203 Distillation: Processes, Separatory 22 18 26 12 7 15 9 8 13 9 12 13 29 31 24 29 276
406 Conveyors: Fluid Current 23 24 34 24 19 4 20 10 7 10 12 15 10 19 19 25 275
150 Purses, Wallets, and Protective Covers 18 17 15 18 11 7 8 12 9 21 20 11 17 15 30 21 250
420 Alloys or Metallic Compositions 17 20 21 19 18 9 5 2 13 7 20 10 20 12 18 28 239
720 Dynamic Optical Information Storage or Retrieval 9 14 18 12 20 13 24 11 25 21 20 20 13 9 7 3 239
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 40 14 33 17 15 23 15 6 9 6 6 11 9 9 8 14 235
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 27 21 10 13 11 15 20 18 9 5 13 8 15 19 22 9 234
139 Textiles: Weaving 32 26 14 9 16 20 19 11 7 17 17 10 12 5 11 8 234
270 Sheet-Material Associating 10 16 14 15 18 5 8 6 11 31 20 23 17 22 6 4 226
281 Books, Strips, and Leaves 38 32 22 8 18 13 8 4 11 6 22 8 6 5 14 9 223
057 Textiles: Spinning, Twisting, and Twining 16 24 22 14 17 10 15 19 13 14 8 10 13 10 12 6 223
027 Undertaking 10 15 4 14 10 6 7 23 16 10 11 24 16 17 19 21 222
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 36 29 19 16 20 15 11 9 8 8 16 6 4 14 5 6 221
202 Distillation: Apparatus 13 17 9 16 11 7 13 9 12 9 13 15 13 28 15 14 214
305 Wheel Substitutes for Land Vehicles 27 22 26 14 9 8 4 5 11 6 8 16 7 11 20 14 208
054 Harness for Working Animal 21 14 19 20 18 7 15 20 14 16 3 5 17 8 4 4 204
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 8 28 14 7 16 8 13 8 3 12 8 7 11 15 21 19 198
332 Modulators 9 18 12 17 8 9 9 6 3 12 26 19 10 9 14 8 189
225 Severing by Tearing or Breaking 9 10 14 15 23 15 16 12 6 5 9 6 12 6 15 13 186
028 Textiles: Manufacturing 18 12 18 18 14 7 20 16 7 13 4 6 5 4 7 12 181
193 Conveyors, Chutes, Skids, Guides, and Ways 19 17 20 13 11 7 12 6 9 6 10 5 1 10 10 16 172
238 Railways: Surface Track 10 9 17 10 12 6 11 5 9 6 13 11 12 8 15 17 171
298 Land Vehicles: Dumping 13 20 10 11 14 11 9 7 8 4 10 13 10 11 9 10 170
212 Traversing Hoists 25 10 8 13 8 6 15 7 13 13 9 10 3 7 9 9 164
038 Textiles: Ironing or Smoothing 11 16 13 10 12 8 12 11 6 6 9 6 12 18 7 7 164
352 Optics: Motion Pictures 6 12 13 18 20 7 18 8 8 7 6 5 11 9 8 7 163
237 Heating Systems 14 16 11 17 13 8 11 3 3 2 4 6 9 16 11 13 157
213 Railway Draft Appliances 13 13 12 4 7 4 6 8 6 8 13 8 7 15 16 11 151
140 Wireworking 15 12 12 11 7 5 19 10 13 3 2 5 6 7 4 14 144
373 Industrial Electric Heating Furnaces 23 14 14 8 14 6 13 9 9 2 5 3 5 7 8 3 143
086 Ammunition and Explosive-Charge Making 4 11 9 13 5 9 11 6 6 9 11 5 6 7 15 14 139
059 Chain, Staple, and Horseshoe Making 7 11 11 8 9 13 11 4 8 6 4 8 4 10 10 9 133
512 Perfume Compositions 14 7 6 12 4 5 12 10 8 7 11 4 4 11 12 4 131
076 Metal Tools and Implements, Making 18 10 7 12 5 3 3 12 3 3 12 10 10 8 6 8 130
412 Bookbinding: Process and Apparatus 14 11 10 15 10 8 6 3 5 7 12 4 6 5 2 6 124
226 Advancing Material of Indeterminate Length 21 16 17 13 6 6 8 8 5 2 1 2 3 1 3 10 122
127 Sugar, Starch, and Carbohydrates 8 16 8 2 4 1 3 6 2 3 7 5 7 13 15 21 121
012 Boot and Shoe Making 2 7 3 1 5 2 6 5 7 6 13 12 12 10 11 15 117
476 Friction Gear Transmission Systems or Components 4 4 4 2 6 8 17 14 10 1 8 11 8 4 10 2 113
157 Wheelwright Machines 8 9 2 6 3 6 4 7 8 7 4 4 12 8 11 13 112
492 Roll or Roller 7 8 12 10 9 8 5 5 4 3 6 7 6 6 3 2 101
453 Coin Handling 10 9 5 16 10 2 4 3 2 4 4 1 4 5 2 8 89
019 Textiles: Fiber Preparation 7 12 9 4 0 0 5 4 6 6 9 3 7 5 4 4 85
191 Electricity: Transmission To Vehicles 6 6 6 9 7 2 5 1 2 4 0 9 4 10 8 4 83
201 Distillation: Processes, Thermolytic 2 1 1 2 2 0 5 0 3 6 9 7 11 6 6 21 82
289 Knots and Knot Tying 5 10 6 6 3 1 3 2 3 5 3 4 6 10 5 9 81
109 Safes, Bank Protection, or a Related Device 9 5 5 6 5 7 1 1 4 1 4 2 8 6 3 13 80
329 Demodulators 11 8 6 6 9 2 5 2 6 6 2 4 3 1 3 3 76
087 Textiles: Braiding, Netting, and Lace Making 5 3 5 2 2 1 1 3 3 1 3 4 7 15 18 2 75
186 Merchandising 7 5 5 11 8 3 3 5 3 4 3 5 2 4 2 3 73
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 7 7 5 4 7 5 10 2 7 3 5 3 1 3 2 0 71
178 Telegraphy 7 5 7 4 8 1 2 2 1 1 1 0 8 8 6 7 68
168 Farriery 9 7 11 8 3 3 3 3 5 5 2 0 1 3 2 2 67
026 Textiles: Cloth Finishing 6 10 3 4 5 2 3 3 2 1 5 2 9 1 2 0 58
159 Concentrating Evaporators 1 1 4 0 1 8 1 2 2 0 4 8 4 3 11 7 57
483 Tool Changing 8 3 6 7 2 5 1 3 6 3 2 0 2 4 2 2 56
023 Chemistry: Physical Processes 3 3 1 4 0 2 2 4 2 1 4 6 5 9 3 5 54
388 Electricity: Motor Control Systems 9 4 4 3 5 3 4 4 4 4 4 1 0 0 1 0 50
413 Sheet Metal Container Making 5 3 3 5 9 1 3 3 2 1 0 3 2 1 1 5 47
346 Recorders 19 3 6 2 0 1 4 3 2 0 1 0 1 0 1 0 43
449 Bee Culture (propagating, raising, caring for bees) 1 0 4 2 3 2 3 1 0 3 1 3 2 1 6 2 34
300 Brush, Broom, and Mop Making 0 4 5 4 0 3 0 0 0 0 5 1 1 2 5 2 32
196 Mineral Oils: Apparatus 1 0 0 0 0 0 1 0 2 1 1 6 3 6 9 0 30
171 Unearthing Plants or Buried Objects 3 3 3 0 0 0 3 0 1 1 5 1 0 1 2 0 23
185 Motors: Spring, Weight, or Animal Powered 4 2 3 2 2 1 1 0 0 0 1 0 1 3 1 2 23
462 Books, Strips, and Leaves for Manifolding 2 4 4 1 0 0 0 1 1 0 0 0 1 2 1 1 18
291 Track Sanders 1 0 1 1 1 3 1 1 0 2 1 1 0 2 0 1 16
295 Railway Wheels and Axles 1 2 2 3 2 1 0 1 0 0 0 0 1 0 0 1 14
334 Tuners 1 0 2 1 0 1 2 1 1 1 1 0 1 0 0 1 13
217 Wooden Receptacles 0 0 1 0 0 1 1 0 2 0 3 0 1 1 0 2 12
260 Chemistry of Carbon Compounds 1 5 0 0 1 0 0 0 0 1 0 1 0 0 0 2 11
234 Selective Cutting (e.g., Punching) 0 0 0 0 1 0 2 0 1 0 1 0 1 2 1 1 10
069 Leather Manufactures 0 1 0 0 0 1 0 1 0 1 0 0 1 1 2 0 8
142 Wood Turning 1 1 0 0 0 0 0 0 0 1 0 0 0 0 2 0 5
079 Button Making 1 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 4
231 Whips and Whip Apparatus 2 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 4
147 Coopering 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
245 Wire Fabrics and Structure 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2
258 Railway Mail Delivery 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 2
314 Electric Lamp and Discharge Devices: Consumable Electrodes 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 2
001 ** Classification Undetermined ** 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
163 Needle and Pin Making 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 80230 82755 82372 83245 79782 70838 85465 75753 74027 78799 103118 103888 115932 128021 138659 135192 1518075



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