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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2004 - 2008 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 COUNTRIES

( 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 )

The following table displays technology classes and counts of utility patents classified in them; patents are distributed either by year of patent grant or by year of patent application.
Class Class Title 2004 2005 2006 2007 2008 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 5173 4483 5499 5038 4779 24972
438 Semiconductor Device Manufacturing: Process 5112 4456 4795 4489 4514 23366
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 4678 4275 4478 4290 4109 21830
370 Multiplex Communications 2915 2743 3806 3173 4513 17150
455 Telecommunications 2169 2278 4064 3497 3114 15122
435 Chemistry: Molecular Biology and Microbiology 2677 2388 3103 2912 2675 13755
532 Organic Compounds (includes Classes 532-570) 2383 2121 2873 2430 2625 12432
345 Computer Graphics Processing and Selective Visual Display Systems 2165 2004 2934 2475 2334 11912
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 3032 2135 2449 2081 1762 11459
428 Stock Material or Miscellaneous Articles 3215 2271 1950 1860 1584 10880
365 Static Information Storage and Retrieval 2005 2016 2171 2294 2325 10811
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 1562 1570 2412 2339 2672 10555
359 Optical: Systems and Elements 2083 2006 2365 2014 2055 10523
439 Electrical Connectors 1989 1805 2287 1935 2172 10188
375 Pulse or Digital Communications 1670 1567 2383 2121 2267 10008
382 Image Analysis 1776 1359 2299 2150 2418 10002
250 Radiant Energy 1863 1547 2283 1999 2202 9894
385 Optical Waveguides 2005 1917 1972 1809 1615 9318
073 Measuring and Testing 1722 1776 1913 1785 1912 9108
324 Electricity: Measuring and Testing 1835 1698 1961 1814 1698 9006
361 Electricity: Electrical Systems and Devices 1855 1452 1716 1891 1999 8913
340 Communications: Electrical 1480 1484 2215 1715 1897 8791
128 Surgery (includes Class 600) 2097 1604 1823 1587 1396 8507
707 DP: Database and File Management or Data Structures (Data Processing) 1493 1234 1890 1757 1961 8335
123 Internal-Combustion Engines 1664 1622 1830 1629 1503 8248
714 Error Detection/Correction and Fault Detection/Recovery 1266 1172 1776 1877 1945 8036
347 Incremental Printing of Symbolic Information 1578 1336 1483 1554 1826 7777
702 DP: Measuring, Calibrating, or Testing (Data Processing) 1509 1482 1703 1513 1404 7611
711 Memory (Electrical Computers and Digital Processing Systems) 1313 1289 1724 1465 1733 7524
348 Television 1269 1091 1593 1367 1624 6944
713 Support (Electrical Computers and Digital Processing Systems) 824 976 1640 1639 1849 6928
356 Optics: Measuring and Testing 1219 1097 1381 1538 1661 6896
029 Metal Working 1396 1242 1493 1244 1028 6403
360 Dynamic Magnetic Information Storage or Retrieval 1462 1126 1470 1132 1082 6272
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1518 1080 1323 1142 1106 6169
280 Land Vehicles 1145 1111 1135 1162 1217 5770
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1203 1064 1288 1172 1032 5759
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 1208 1173 1079 1132 1146 5738
358 Facsimile and Static Presentation Processing 825 914 1348 1286 1351 5724
362 Illumination 918 955 1259 1373 1194 5699
399 Electrophotography 972 893 1172 1245 1297 5579
310 Electrical Generator or Motor Structure 1363 1105 1047 914 966 5395
700 DP: Generic Control Systems or Specific Applications (Data Processing) 1125 997 1301 969 897 5289
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 312 775 1260 1167 1685 5199
369 Dynamic Information Storage or Retrieval 932 733 1189 1159 1141 5154
379 Telephonic Communications 1299 932 1251 901 701 5084
710 Input/Output (Electrical Computers and Digital Processing Systems) 1260 952 1140 810 907 5069
606 Surgery (instruments) 1124 902 1063 986 760 4835
349 Liquid Crystal Cells, Elements and Systems 1005 993 950 839 995 4782
210 Liquid Purification or Separation 995 893 873 971 927 4659
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 811 613 1040 1024 1079 4567
060 Power Plants 950 944 1092 755 706 4447
219 Electric Heating 1085 950 1021 797 573 4426
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 615 731 1024 1011 1017 4398
604 Surgery (Medicators and Receptors) 1150 871 846 734 748 4349
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 939 763 784 763 746 3995
341 Coded Data Generation or Conversion 719 653 816 803 881 3872
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 644 605 932 804 872 3857
313 Electric Lamp and Discharge Devices 913 690 769 762 719 3853
343 Communications: Radio Wave Antennas 610 779 893 728 808 3818
296 Land Vehicles: Bodies and Tops 786 729 819 743 701 3778
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1046 750 729 612 551 3688
062 Refrigeration 813 660 795 831 556 3655
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 644 514 838 753 742 3491
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 465 441 734 864 879 3383
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 528 425 851 766 802 3372
174 Electricity: Conductors and Insulators 750 682 652 637 620 3341
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 984 656 645 539 503 3327
427 Coating Processes 940 694 481 579 555 3249
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 534 458 682 799 685 3158
451 Abrading 729 734 805 518 319 3105
318 Electricity: Motive Power Systems 561 562 775 619 581 3098
473 Games Using Tangible Projectile 608 582 715 638 531 3074
717 DP: Software Development, Installation, and Management (Data Processing) 416 466 752 706 704 3044
137 Fluid Handling 685 693 677 539 442 3036
330 Amplifiers 589 478 651 651 638 3007
372 Coherent Light Generators 863 610 590 413 487 2963
607 Surgery: Light, Thermal, and Electrical Application 528 510 697 701 471 2907
326 Electronic Digital Logic Circuitry 545 507 528 651 642 2873
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 612 516 488 630 624 2870
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 719 523 632 539 448 2861
180 Motor Vehicles 507 573 581 585 607 2853
052 Static Structures (e.g., Buildings) 774 677 560 438 398 2847
297 Chairs and Seats 629 479 625 504 547 2784
315 Electric Lamp and Discharge Devices: Systems 642 516 574 534 499 2765
378 X-Ray or Gamma Ray Systems or Devices 429 464 631 564 608 2696
398 Optical Communications 393 306 615 648 598 2560
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 585 419 512 494 538 2548
381 Electrical Audio Signal Processing Systems and Devices 492 368 623 518 465 2466
206 Special Receptacle or Package 486 529 490 383 524 2412
333 Wave Transmission Lines and Networks 537 513 480 396 425 2351
239 Fluid Sprinkling, Spraying, and Diffusing 632 513 555 357 291 2348
248 Supports (e.g., for holding articles, etc.) 495 404 464 500 419 2282
726 Information Security 222 227 505 609 706 2269
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 263 372 641 477 507 2260
252 Compositions 528 326 440 420 435 2149
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 430 275 501 500 414 2120
423 Chemistry of Inorganic Compounds 439 377 496 367 409 2088
165 Heat Exchange 417 424 543 359 252 1995
386 Television Signal Processing for Dynamic Recording or Reproducing 358 262 394 479 486 1979
355 Photocopying 365 344 468 391 397 1965
033 Geometrical Instruments 374 397 379 411 380 1941
106 Compositions: Coating or Plastic 488 311 369 408 364 1940
015 Brushing, Scrubbing, and General Cleaning 423 351 339 434 391 1938
204 Chemistry: Electrical and Wave Energy 515 403 338 348 313 1917
222 Dispensing (apparatus and process) 469 417 413 340 236 1875
074 Machine Element or Mechanism 409 353 387 385 340 1874
426 Food or Edible Material: Processes, Compositions, and Products 580 325 399 321 241 1866
436 Chemistry: Analytical and Immunological Testing 407 337 312 390 418 1864
200 Electricity: Circuit Makers and Breakers 418 359 414 341 324 1856
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 369 336 374 350 424 1853
463 Amusement Devices: Games 422 370 309 315 413 1829
482 Exercise Devices 364 282 459 348 360 1813
005 Beds 403 388 387 278 350 1806
331 Oscillators 356 292 379 396 376 1799
244 Aeronautics and Astronautics 428 350 369 344 280 1771
053 Package Making 425 377 352 247 356 1757
198 Conveyors: Power-Driven 409 312 341 340 332 1734
072 Metal Deforming 321 259 458 385 307 1730
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 385 365 346 337 282 1715
323 Electricity: Power Supply or Regulation Systems 272 289 395 382 371 1709
415 Rotary Kinetic Fluid Motors or Pumps 329 363 394 333 285 1704
353 Optics: Image Projectors 305 268 401 381 340 1695
101 Printing 580 333 351 204 200 1668
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 435 310 365 271 272 1653
242 Winding, Tensioning, or Guiding 367 338 339 314 290 1648
351 Optics: Eye Examining, Vision Testing and Correcting 309 243 294 362 415 1623
084 Music 272 234 316 374 422 1618
363 Electric Power Conversion Systems 307 291 350 307 328 1583
002 Apparel 405 339 380 237 217 1578
380 Cryptography 166 221 367 409 372 1535
081 Tools 256 309 416 337 205 1523
134 Cleaning and Liquid Contact with Solids 390 302 272 284 263 1511
417 Pumps 432 269 355 227 228 1511
475 Planetary Gear Transmission Systems or Components 303 236 308 342 281 1470
251 Valves and Valve Actuation 326 366 382 209 179 1462
114 Ships 257 320 330 292 259 1458
119 Animal Husbandry 298 304 325 293 232 1452
414 Material or Article Handling 389 290 300 237 224 1440
396 Photography 438 218 228 186 364 1434
708 Arithmetic Processing and Calculating (Electrical Computers) 284 230 359 234 302 1409
118 Coating Apparatus 365 299 256 225 255 1400
188 Brakes 251 289 300 261 240 1341
405 Hydraulic and Earth Engineering 300 251 327 208 243 1329
307 Electrical Transmission or Interconnection Systems 298 141 284 286 316 1325
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 242 234 287 176 330 1269
175 Boring or Penetrating the Earth 228 203 274 264 278 1247
725 Interactive Video Distribution Systems 225 170 352 261 231 1239
271 Sheet Feeding or Delivering 251 218 215 215 338 1237
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 332 268 273 230 133 1236
433 Dentistry 239 239 315 257 170 1220
220 Receptacles 284 229 285 213 186 1197
384 Bearings 265 240 253 213 209 1180
720 Dynamic Optical Information Storage or Retrieval 200 220 270 233 254 1177
400 Typewriting Machines 287 263 261 212 153 1176
285 Pipe Joints or Couplings 229 250 251 161 276 1167
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 351 238 202 199 175 1165
148 Metal Treatment 345 227 202 190 198 1162
416 Fluid Reaction Surfaces (i.e., Impellers) 212 189 254 267 237 1159
706 DP: Artificial Intelligence (Data Processing) 157 205 243 203 348 1156
192 Clutches and Power-Stop Control 292 223 259 192 174 1140
216 Etching a Substrate: Processes 229 197 239 228 232 1125
083 Cutting 320 210 272 174 141 1117
228 Metal Fusion Bonding 304 257 191 136 199 1087
030 Cutlery 273 221 229 199 163 1085
004 Baths, Closets, Sinks, and Spittoons 309 229 219 181 138 1076
162 Paper Making and Fiber Liberation 271 192 208 202 200 1073
273 Amusement Devices: Games 216 189 217 229 222 1073
320 Electricity: Battery or Capacitor Charging or Discharging 251 208 183 183 245 1070
040 Card, Picture, or Sign Exhibiting 245 201 173 203 220 1042
336 Inductor Devices 184 243 222 204 185 1038
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 179 180 255 186 219 1019
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 242 245 240 153 135 1015
070 Locks 222 210 200 178 204 1014
211 Supports: Racks 251 226 227 193 112 1009
036 Boots, Shoes, and Leggings 217 196 214 175 203 1005
290 Prime-Mover Dynamo Plants 168 182 199 194 239 982
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 192 175 183 204 221 975
024 Buckles, Buttons, Clasps, Etc. 204 144 223 200 200 971
095 Gas Separation: Processes 217 164 210 163 210 964
016 Miscellaneous Hardware 215 189 231 165 145 945
440 Marine Propulsion 205 200 188 183 169 945
164 Metal Founding 200 218 233 182 104 937
585 Chemistry of Hydrocarbon Compounds 158 149 160 223 242 932
241 Solid Material Comminution or Disintegration 156 148 201 236 187 928
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 211 136 194 205 180 926
434 Education and Demonstration 257 223 181 142 109 912
401 Coating Implements with Material Supply 201 181 195 173 161 911
055 Gas Separation 177 149 146 179 252 903
099 Foods and Beverages: Apparatus 247 173 174 112 167 873
446 Amusement Devices: Toys 281 174 153 137 127 872
292 Closure Fasteners 162 159 182 194 171 868
277 Seal for a Joint or Juncture 249 206 187 107 111 860
043 Fishing, Trapping, and Vermin Destroying 221 195 170 139 130 855
367 Communications, Electrical: Acoustic Wave Systems and Devices 143 146 142 180 239 850
477 Interrelated Power Delivery Controls, Including Engine Control 162 169 157 184 170 842
366 Agitating (e.g., of articles and materials) 180 163 147 156 182 828
034 Drying and Gas or Vapor Contact with Solids 200 193 186 92 156 827
368 Horology: Time Measuring Systems or Devices 166 125 175 152 197 815
501 Compositions: Ceramic 194 157 177 149 135 812
056 Harvesters 178 199 165 118 140 800
403 Joints and Connections 242 162 141 99 132 776
445 Electric Lamp or Space Discharge Component or Device Manufacturing 186 177 185 123 94 765
152 Resilient Tires and Wheels 169 149 172 147 125 762
160 Flexible or Portable Closure, Partition, or Panel 193 168 162 138 98 759
404 Road Structure, Process, or Apparatus 155 126 174 148 139 742
374 Thermal Measuring and Testing 143 158 176 100 164 741
209 Classifying, Separating, and Assorting Solids 184 143 143 126 144 740
312 Supports: Cabinet Structure 207 171 128 120 113 739
602 Surgery: Splint, Brace, or Bandage 149 159 176 131 115 730
227 Elongated-Member-Driving Apparatus 148 132 175 130 142 727
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 178 142 158 121 96 695
065 Glass Manufacturing 223 124 139 96 103 685
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 190 131 101 135 122 679
102 Ammunition and Explosives 150 137 141 110 140 678
303 Fluid-Pressure and Analogous Brake Systems 132 142 140 117 142 673
208 Mineral Oils: Processes and Products 144 103 116 140 163 666
042 Firearms 155 118 130 127 133 663
224 Package and Article Carriers 224 139 108 96 85 652
254 Implements or Apparatus for Applying Pushing or Pulling Force 116 123 148 123 138 648
474 Endless Belt Power Transmission Systems or Components 130 127 168 128 92 645
096 Gas Separation: Apparatus 142 116 107 127 151 643
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 198 104 100 108 127 637
049 Movable or Removable Closures 187 140 139 79 87 632
138 Pipes and Tubular Conduits 135 152 150 88 89 614
418 Rotary Expansible Chamber Devices 142 95 122 121 133 613
181 Acoustics 144 126 70 110 142 592
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 146 120 103 86 136 591
431 Combustion 181 169 102 77 57 586
294 Handling: Hand and Hoist-Line Implements 81 91 141 149 121 583
182 Fire Escape, Ladder, or Scaffold 153 137 144 94 47 575
221 Article Dispensing 151 98 142 99 81 571
454 Ventilation 161 129 114 79 71 554
601 Surgery: Kinesitherapy 105 87 122 125 111 550
092 Expansible Chamber Devices 113 104 99 126 103 545
173 Tool Driving or Impacting 115 103 123 83 109 533
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 124 93 123 86 103 529
261 Gas and Liquid Contact Apparatus 121 78 117 108 98 522
108 Horizontally Supported Planar Surfaces 159 109 118 64 71 521
126 Stoves and Furnaces 165 154 78 61 61 519
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 70 66 112 128 130 506
267 Spring Devices 109 82 113 99 102 505
089 Ordnance 117 87 84 98 104 490
392 Electric Resistance Heating Devices 87 118 125 99 57 486
135 Tent, Canopy, Umbrella, or Cane 122 81 77 102 89 471
409 Gear Cutting, Milling, or Planing 85 86 97 120 82 470
047 Plant Husbandry 129 103 107 82 48 469
100 Presses 104 82 107 73 97 463
124 Mechanical Guns and Projectors 138 80 71 93 76 458
408 Cutting by Use of Rotating Axially Moving Tool 60 81 121 105 81 448
215 Bottles and Jars 92 90 116 79 69 446
410 Freight Accommodation On Freight Carrier 103 80 98 78 83 442
112 Sewing 112 92 89 71 76 440
132 Toilet 99 64 93 113 71 440
504 Plant Protecting and Regulating Compositions 127 113 85 54 46 425
037 Excavating 114 102 95 67 42 420
441 Buoys, Rafts, and Aquatic Devices 81 77 101 85 65 409
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 130 70 58 67 75 400
301 Land Vehicles: Wheels and Axles 97 78 91 57 75 398
177 Weighing Scales 94 64 85 83 68 394
229 Envelopes, Wrappers, and Paperboard Boxes 58 97 76 83 77 391
144 Woodworking 72 53 108 74 83 390
269 Work Holders 95 86 89 64 52 386
091 Motors: Expansible Chamber Type 92 69 79 80 48 368
136 Batteries: Thermoelectric and Photoelectric 113 55 57 78 59 362
139 Textiles: Weaving 67 95 102 43 55 362
452 Butchering 50 49 95 83 84 361
172 Earth Working 97 91 89 45 37 359
066 Textiles: Knitting 82 81 79 60 49 351
507 Earth Boring, Well Treating, and Oil Field Chemistry 83 50 69 75 66 343
407 Cutters, for Shaping 81 63 73 58 65 340
383 Flexible Bags 67 82 68 61 45 323
338 Electrical Resistors 52 50 97 68 47 314
293 Vehicle Fenders 69 74 54 60 56 313
322 Electricity: Single Generator Systems 62 36 66 75 62 301
236 Automatic Temperature and Humidity Regulation 68 59 63 69 41 300
057 Textiles: Spinning, Twisting, and Twining 66 50 75 48 57 296
044 Fuel and Related Compositions 89 46 28 58 66 287
116 Signals and Indicators 73 60 48 48 57 286
376 Induced Nuclear Reactions: Processes, Systems, and Elements 94 83 36 28 40 281
111 Planting 58 47 59 57 59 280
270 Sheet-Material Associating 66 32 54 48 75 275
110 Furnaces 68 79 61 33 32 273
122 Liquid Heaters and Vaporizers 64 64 46 43 51 268
068 Textiles: Fluid Treating Apparatus 29 33 35 72 93 262
256 Fences 57 64 54 34 48 257
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 66 49 57 44 40 256
105 Railway Rolling Stock 49 67 49 42 47 254
337 Electricity: Electrothermally or Thermally Actuated Switches 81 38 46 40 49 254
266 Metallurgical Apparatus 69 43 36 45 57 250
131 Tobacco 92 45 30 48 34 249
169 Fire Extinguishers 49 49 58 40 50 246
048 Gas: Heating and Illuminating 35 27 50 60 69 241
223 Apparel Apparatus 55 44 39 53 43 234
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 58 43 60 36 33 230
104 Railways 57 47 33 41 51 229
419 Powder Metallurgy Processes 63 40 42 40 43 228
249 Static Molds 60 39 57 46 23 225
051 Abrasive Tool Making Process, Material, or Composition 71 41 31 45 29 217
432 Heating 59 48 38 32 40 217
472 Amusement Devices 56 56 37 30 36 215
082 Turning (e.g., for metal working) 49 45 49 30 38 211
494 Imperforate Bowl: Centrifugal Separators 49 38 54 32 37 210
125 Stone Working 38 47 62 30 30 207
450 Foundation Garments 39 38 42 43 43 205
299 Mining or In Situ Disintegration of Hard Material 36 36 36 29 67 204
014 Bridges 49 33 44 39 31 196
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 101 71 0 0 23 195
028 Textiles: Manufacturing 46 23 45 42 38 194
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 40 53 31 27 37 188
184 Lubrication 41 39 41 34 31 186
063 Jewelry 43 26 40 38 37 184
283 Printed Matter 66 33 31 24 30 184
232 Deposit and Collection Receptacles 25 27 37 52 42 183
460 Crop Threshing or Separating 44 42 38 33 26 183
194 Check-Actuated Control Mechanisms 45 52 36 31 18 182
279 Chucks or Sockets 37 57 23 34 29 180
420 Alloys or Metallic Compositions 73 39 18 17 32 179
203 Distillation: Processes, Separatory 33 36 35 31 33 168
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 35 18 36 37 31 157
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 57 33 30 22 14 156
007 Compound Hand Tools 38 39 39 29 10 155
212 Traversing Hoists 21 14 34 37 45 151
038 Textiles: Ironing or Smoothing 36 20 39 27 26 148
059 Chain, Staple, and Horseshoe Making 24 27 30 28 34 143
149 Explosive and Thermic Compositions or Charges 45 62 25 2 8 142
305 Wheel Substitutes for Land Vehicles 28 31 27 28 26 140
406 Conveyors: Fluid Current 30 21 33 28 27 139
476 Friction Gear Transmission Systems or Components 25 30 32 28 21 136
054 Harness for Working Animal 31 13 27 34 25 130
225 Severing by Tearing or Breaking 37 30 31 17 12 127
505 Superconductor Technology: Apparatus, Material, Process 42 28 23 20 14 127
190 Trunks and Hand-Carried Luggage 23 26 31 22 21 123
483 Tool Changing 21 15 27 30 29 122
512 Perfume Compositions 21 16 29 34 18 118
027 Undertaking 15 12 13 42 33 115
332 Modulators 21 21 25 29 18 114
019 Textiles: Fiber Preparation 21 20 28 15 27 111
246 Railway Switches and Signals 24 16 26 26 19 111
352 Optics: Motion Pictures 36 21 23 17 12 109
492 Roll or Roller 34 27 15 17 12 105
588 Hazardous or Toxic Waste Destruction or Containment 15 20 28 22 20 105
140 Wireworking 19 8 33 22 19 101
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 31 21 16 16 16 100
226 Advancing Material of Indeterminate Length 26 18 16 21 18 99
202 Distillation: Apparatus 21 18 23 15 21 98
237 Heating Systems 30 23 25 7 11 96
373 Industrial Electric Heating Furnaces 29 14 24 13 11 91
453 Coin Handling 27 10 20 17 14 88
329 Demodulators 27 17 16 9 16 85
238 Railways: Surface Track 23 14 19 10 14 80
071 Chemistry: Fertilizers 27 14 12 11 14 78
193 Conveyors, Chutes, Skids, Guides, and Ways 16 11 19 16 15 77
298 Land Vehicles: Dumping 24 17 13 11 12 77
281 Books, Strips, and Leaves 24 16 15 8 13 76
157 Wheelwright Machines 7 12 14 20 18 71
150 Purses, Wallets, and Protective Covers 15 9 13 17 10 64
086 Ammunition and Explosive-Charge Making 7 14 15 12 14 62
412 Bookbinding: Process and Apparatus 19 13 8 9 13 62
076 Metal Tools and Implements, Making 15 10 9 16 8 58
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 13 8 14 6 16 57
388 Electricity: Motor Control Systems 13 5 13 10 14 55
127 Sugar, Starch, and Carbohydrates 15 6 11 12 5 49
213 Railway Draft Appliances 14 5 9 9 10 47
191 Electricity: Transmission To Vehicles 13 14 12 5 2 46
001 ** Classification Undetermined ** 1 9 7 15 7 39
012 Boot and Shoe Making 9 4 9 6 11 39
109 Safes, Bank Protection, or a Related Device 8 12 5 6 7 38
300 Brush, Broom, and Mop Making 12 8 3 6 8 37
413 Sheet Metal Container Making 12 8 7 4 6 37
178 Telegraphy 14 5 10 5 2 36
159 Concentrating Evaporators 7 13 7 4 4 35
026 Textiles: Cloth Finishing 7 7 6 9 4 33
087 Textiles: Braiding, Netting, and Lace Making 5 2 8 11 7 33
023 Chemistry: Physical Processes 5 10 6 4 7 32
168 Farriery 10 6 3 5 6 30
186 Merchandising 10 3 3 8 3 27
289 Knots and Knot Tying 7 4 3 5 4 23
201 Distillation: Processes, Thermolytic 3 4 9 0 5 21
171 Unearthing Plants or Buried Objects 5 4 6 1 1 17
234 Selective Cutting (e.g., Punching) 3 2 8 1 3 17
346 Recorders 2 4 4 4 2 16
449 Bee Culture (propagating, raising, caring for bees) 3 3 4 1 3 14
069 Leather Manufactures 4 7 0 1 1 13
334 Tuners 1 3 4 1 2 11
260 Chemistry of Carbon Compounds 2 2 0 1 5 10
291 Track Sanders 1 5 1 1 1 9
185 Motors: Spring, Weight, or Animal Powered 4 2 1 0 0 7
295 Railway Wheels and Axles 3 1 0 1 1 6
217 Wooden Receptacles 0 2 1 0 2 5
245 Wire Fabrics and Structure 0 1 2 1 1 5
462 Books, Strips, and Leaves for Manifolding 1 0 1 1 2 5
196 Mineral Oils: Apparatus 0 0 2 0 2 4
231 Whips and Whip Apparatus 0 0 0 0 3 3
079 Button Making 0 1 1 0 0 2
278 Land Vehicles: Animal Draft Appliances 0 1 0 1 0 2
314 Electric Lamp and Discharge Devices: Consumable Electrodes 1 0 1 0 0 2
276 Typesetting 1 0 0 0 0 1
ALL ALL CLASSES 164290 143806 173772 157282 157772 796922


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