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

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

Count of 2008 - 2012 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

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 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 by year of patent grant.
Class Class Title 2008 2009 2010 2011 2012 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 2667 2992 4188 4043 5097 18987
370 Multiplex Communications 2457 2969 4031 4082 4232 17771
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 1946 2359 3224 3322 3579 14430
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 1298 1623 3374 3413 4093 13801
707 DP: Database and File Management or Data Structures (Data Processing) 1401 2041 3186 2967 3408 13003
455 Telecommunications 1479 1679 2136 2689 3615 11598
438 Semiconductor Device Manufacturing: Process 1821 1873 2361 2151 1905 10111
435 Chemistry: Molecular Biology and Microbiology 1583 1601 2173 2131 2129 9617
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1472 1464 2066 2026 1952 8980
128 Surgery (includes Class 600) 908 1074 1679 1891 2217 7769
382 Image Analysis 1075 1209 1519 1563 2016 7382
606 Surgery (instruments) 598 803 1504 1787 2241 6933
375 Pulse or Digital Communications 1153 1157 1413 1349 1794 6866
532 Organic Compounds (includes Classes 532-570) 1145 1238 1421 1451 1606 6861
340 Communications: Electrical 1225 1204 1306 1352 1602 6689
714 Error Detection/Correction and Fault Detection/Recovery 1176 1212 1404 1304 1307 6403
713 Support (Electrical Computers and Digital Processing Systems) 1083 1132 1348 1250 1444 6257
711 Memory (Electrical Computers and Digital Processing Systems) 1056 1012 1088 1184 1407 5747
345 Computer Graphics Processing and Selective Visual Display Systems 831 945 1111 1168 1458 5513
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 805 860 1252 1268 1106 5291
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 764 949 1158 1040 1271 5182
604 Surgery (Medicators and Receptors) 478 624 1221 1286 1560 5169
702 DP: Measuring, Calibrating, or Testing (Data Processing) 854 777 898 980 1042 4551
365 Static Information Storage and Retrieval 885 850 902 990 920 4547
726 Information Security 466 686 937 1016 1420 4525
250 Radiant Energy 950 909 938 764 894 4455
361 Electricity: Electrical Systems and Devices 835 871 921 913 881 4421
428 Stock Material or Miscellaneous Articles 634 654 967 1110 1028 4393
073 Measuring and Testing 929 827 881 840 877 4354
439 Electrical Connectors 900 838 916 850 648 4152
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 491 521 744 965 1414 4135
324 Electricity: Measuring and Testing 820 805 845 774 727 3971
356 Optics: Measuring and Testing 871 770 788 712 650 3791
607 Surgery: Light, Thermal, and Electrical Application 379 506 831 939 1107 3762
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 523 674 715 755 1037 3704
717 DP: Software Development, Installation, and Management (Data Processing) 503 587 919 713 964 3686
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 675 671 758 762 761 3627
379 Telephonic Communications 537 555 674 833 994 3593
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 351 471 720 887 996 3425
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 566 652 799 696 691 3404
348 Television 446 522 642 684 1083 3377
029 Metal Working 500 557 714 733 820 3324
359 Optical: Systems and Elements 711 620 735 641 616 3323
280 Land Vehicles 595 596 797 678 656 3322
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 560 533 779 631 784 3287
700 DP: Generic Control Systems or Specific Applications (Data Processing) 485 462 672 727 806 3152
385 Optical Waveguides 859 678 657 442 494 3130
362 Illumination 484 547 681 628 698 3038
052 Static Structures (e.g., Buildings) 303 434 777 636 824 2974
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 529 507 588 661 683 2968
210 Liquid Purification or Separation 540 510 614 601 685 2950
463 Amusement Devices: Games 307 263 559 643 1092 2864
060 Power Plants 322 431 584 636 795 2768
360 Dynamic Magnetic Information Storage or Retrieval 540 539 550 570 569 2768
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 346 370 600 618 693 2627
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 458 433 496 573 667 2627
473 Games Using Tangible Projectile 376 389 548 590 650 2553
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 608 478 534 496 399 2515
123 Internal-Combustion Engines 539 432 487 434 482 2374
358 Facsimile and Static Presentation Processing 405 402 445 467 582 2301
427 Coating Processes 286 378 547 493 593 2297
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 345 385 451 481 528 2190
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 406 438 475 424 431 2174
706 DP: Artificial Intelligence (Data Processing) 237 347 462 535 544 2125
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 249 306 518 476 524 2073
725 Interactive Video Distribution Systems 156 299 455 527 631 2068
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 249 272 525 472 429 1947
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 329 375 369 440 418 1931
248 Supports (e.g., for holding articles, etc.) 236 339 488 408 453 1924
482 Exercise Devices 250 356 476 476 288 1846
296 Land Vehicles: Bodies and Tops 365 331 438 317 385 1836
206 Special Receptacle or Package 355 284 393 376 382 1790
381 Electrical Audio Signal Processing Systems and Devices 187 199 271 397 723 1777
436 Chemistry: Analytical and Immunological Testing 254 280 399 430 410 1773
347 Incremental Printing of Symbolic Information 309 245 374 353 466 1747
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 246 218 342 459 472 1737
398 Optical Communications 274 328 327 382 392 1703
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 322 314 407 333 298 1674
310 Electrical Generator or Motor Structure 269 315 366 328 314 1592
174 Electricity: Conductors and Insulators 336 328 309 283 306 1562
244 Aeronautics and Astronautics 196 241 299 400 419 1555
326 Electronic Digital Logic Circuitry 359 331 390 282 170 1532
341 Coded Data Generation or Conversion 379 311 329 277 227 1523
062 Refrigeration 291 254 356 340 277 1518
343 Communications: Radio Wave Antennas 297 295 316 291 306 1505
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 165 196 296 296 547 1500
297 Chairs and Seats 284 265 341 312 296 1498
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 292 265 344 352 243 1496
137 Fluid Handling 267 254 307 272 394 1494
219 Electric Heating 261 215 310 256 403 1445
423 Chemistry of Inorganic Compounds 201 259 380 305 300 1445
180 Motor Vehicles 226 252 343 306 314 1441
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 247 282 283 268 330 1410
005 Beds 280 246 299 267 301 1393
015 Brushing, Scrubbing, and General Cleaning 232 216 346 296 291 1381
380 Cryptography 166 257 286 291 336 1336
378 X-Ray or Gamma Ray Systems or Devices 268 311 290 245 221 1335
307 Electrical Transmission or Interconnection Systems 141 210 267 303 303 1224
220 Receptacles 128 187 246 320 338 1219
330 Amplifiers 270 258 268 229 190 1215
002 Apparel 156 133 289 309 314 1201
084 Music 198 246 277 230 229 1180
175 Boring or Penetrating the Earth 187 186 260 271 259 1163
252 Compositions 196 176 239 280 272 1163
315 Electric Lamp and Discharge Devices: Systems 179 167 174 262 373 1155
119 Animal Husbandry 183 170 229 272 292 1146
372 Coherent Light Generators 208 239 272 214 195 1128
415 Rotary Kinetic Fluid Motors or Pumps 123 140 195 221 432 1111
320 Electricity: Battery or Capacitor Charging or Discharging 106 209 247 235 301 1098
222 Dispensing (apparatus and process) 139 150 276 235 296 1096
323 Electricity: Power Supply or Regulation Systems 178 201 231 244 241 1095
426 Food or Edible Material: Processes, Compositions, and Products 137 164 236 255 294 1086
204 Chemistry: Electrical and Wave Energy 156 157 234 227 291 1065
351 Optics: Eye Examining, Vision Testing and Correcting 220 189 222 233 194 1058
416 Fluid Reaction Surfaces (i.e., Impellers) 136 148 181 277 312 1054
033 Geometrical Instruments 226 210 225 215 173 1049
318 Electricity: Motive Power Systems 192 191 184 218 223 1008
239 Fluid Sprinkling, Spraying, and Diffusing 142 168 250 210 195 965
134 Cleaning and Liquid Contact with Solids 147 162 187 211 227 934
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 167 159 202 203 200 931
399 Electrophotography 157 137 200 214 214 922
095 Gas Separation: Processes 148 118 172 217 244 899
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 135 174 218 180 187 894
475 Planetary Gear Transmission Systems or Components 134 122 189 223 220 888
585 Chemistry of Hydrocarbon Compounds 153 150 168 196 210 877
273 Amusement Devices: Games 184 179 200 154 147 864
036 Boots, Shoes, and Leggings 147 135 209 168 196 855
040 Card, Picture, or Sign Exhibiting 167 131 169 194 185 846
331 Oscillators 171 184 187 152 139 833
405 Hydraulic and Earth Engineering 166 155 178 156 169 824
708 Arithmetic Processing and Calculating (Electrical Computers) 172 149 164 169 164 818
106 Compositions: Coating or Plastic 141 129 205 156 179 810
053 Package Making 176 166 152 160 154 808
042 Firearms 106 98 169 207 222 802
333 Wave Transmission Lines and Networks 157 151 190 163 132 793
363 Electric Power Conversion Systems 121 143 166 182 175 787
290 Prime-Mover Dynamo Plants 125 135 147 186 193 786
414 Material or Article Handling 121 149 172 170 169 781
417 Pumps 100 108 117 164 275 764
313 Electric Lamp and Discharge Devices 106 120 167 171 189 753
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 134 130 155 170 164 753
004 Baths, Closets, Sinks, and Spittoons 106 86 129 184 239 744
198 Conveyors: Power-Driven 145 141 164 148 140 738
114 Ships 165 139 147 138 145 734
602 Surgery: Splint, Brace, or Bandage 78 115 166 186 188 733
118 Coating Apparatus 109 116 150 164 187 726
451 Abrading 149 129 128 151 169 726
055 Gas Separation 121 119 146 173 152 711
227 Elongated-Member-Driving Apparatus 78 98 143 181 203 703
211 Supports: Racks 86 92 152 193 176 699
089 Ordnance 78 93 133 176 205 685
043 Fishing, Trapping, and Vermin Destroying 118 114 177 137 133 679
367 Communications, Electrical: Acoustic Wave Systems and Devices 115 127 151 128 155 676
285 Pipe Joints or Couplings 137 140 146 117 115 655
434 Education and Demonstration 87 93 101 141 230 652
241 Solid Material Comminution or Disintegration 89 121 140 169 130 649
208 Mineral Oils: Processes and Products 102 97 157 147 131 634
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 89 106 121 130 167 613
074 Machine Element or Mechanism 73 106 125 117 182 603
162 Paper Making and Fiber Liberation 77 82 144 143 155 601
433 Dentistry 110 64 122 147 158 601
102 Ammunition and Explosives 100 90 113 139 148 590
056 Harvesters 87 104 153 122 116 582
024 Buckles, Buttons, Clasps, Etc. 108 103 115 111 132 569
404 Road Structure, Process, or Apparatus 107 96 129 117 113 562
446 Amusement Devices: Toys 84 85 136 146 109 560
072 Metal Deforming 117 107 98 115 116 553
216 Etching a Substrate: Processes 104 93 86 106 162 551
369 Dynamic Information Storage or Retrieval 89 77 98 137 145 546
386 Motion Video Signal Processing for Recording or Reproducing 95 88 97 87 177 544
030 Cutlery 85 89 126 129 113 542
083 Cutting 66 94 122 121 139 542
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 80 98 149 130 83 540
228 Metal Fusion Bonding 101 80 126 114 117 538
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 79 96 130 105 127 537
374 Thermal Measuring and Testing 87 100 114 79 151 531
200 Electricity: Circuit Makers and Breakers 119 114 90 100 106 529
136 Batteries: Thermoelectric and Photoelectric 32 59 108 149 180 528
507 Earth Boring, Well Treating, and Oil Field Chemistry 47 94 133 145 104 523
396 Photography 71 92 128 109 122 522
165 Heat Exchange 96 82 112 105 116 511
251 Valves and Valve Actuation 74 84 110 97 140 505
353 Optics: Image Projectors 123 81 66 119 115 504
366 Agitating (e.g., of articles and materials) 104 75 90 101 134 504
099 Foods and Beverages: Apparatus 84 78 116 103 115 496
294 Handling: Hand and Hoist-Line Implements 83 74 106 115 114 492
181 Acoustics 75 89 90 123 106 483
224 Package and Article Carriers 70 45 110 107 145 477
096 Gas Separation: Apparatus 63 88 96 97 125 469
081 Tools 97 57 106 116 91 467
271 Sheet Feeding or Delivering 70 90 101 103 96 460
242 Winding, Tensioning, or Guiding 126 81 88 95 67 457
047 Plant Husbandry 32 74 117 106 126 455
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 68 76 114 70 115 443
070 Locks 97 74 78 91 96 436
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 53 64 109 114 86 426
401 Coating Implements with Material Supply 78 66 81 64 129 418
148 Metal Treatment 57 78 106 76 96 413
188 Brakes 65 89 74 80 101 409
349 Liquid Crystal Cells, Elements and Systems 62 70 69 96 111 408
108 Horizontally Supported Planar Surfaces 50 63 84 86 124 407
124 Mechanical Guns and Projectors 57 50 107 102 89 405
135 Tent, Canopy, Umbrella, or Cane 51 81 98 100 75 405
254 Implements or Apparatus for Applying Pushing or Pulling Force 85 71 82 77 87 402
292 Closure Fasteners 81 75 87 72 83 398
209 Classifying, Separating, and Assorting Solids 78 61 80 91 82 392
126 Stoves and Furnaces 35 41 105 101 109 391
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 45 64 97 84 88 378
160 Flexible or Portable Closure, Partition, or Panel 48 67 93 76 92 376
229 Envelopes, Wrappers, and Paperboard Boxes 56 71 106 82 61 376
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 60 47 93 89 87 376
312 Supports: Cabinet Structure 54 50 81 71 105 361
601 Surgery: Kinesitherapy 77 48 55 77 93 350
192 Clutches and Power-Stop Control 67 49 68 82 83 349
336 Inductor Devices 44 54 76 103 69 346
477 Interrelated Power Delivery Controls, Including Engine Control 41 57 73 71 99 341
215 Bottles and Jars 47 49 77 79 86 338
410 Freight Accommodation On Freight Carrier 62 53 73 71 78 337
037 Excavating 26 69 114 68 57 334
182 Fire Escape, Ladder, or Scaffold 42 24 63 83 117 329
164 Metal Founding 50 48 62 81 87 328
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 58 60 72 66 71 327
277 Seal for a Joint or Juncture 61 33 68 78 87 327
049 Movable or Removable Closures 49 47 66 63 101 326
138 Pipes and Tubular Conduits 44 65 68 75 62 314
132 Toilet 42 43 51 75 98 309
221 Article Dispensing 56 51 78 72 51 308
261 Gas and Liquid Contact Apparatus 52 51 49 65 83 300
044 Fuel and Related Compositions 35 52 62 69 71 289
403 Joints and Connections 56 44 58 54 73 285
440 Marine Propulsion 69 58 58 54 46 285
065 Glass Manufacturing 40 36 51 82 75 284
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 67 50 54 47 64 282
034 Drying and Gas or Vapor Contact with Solids 60 26 38 71 81 276
501 Compositions: Ceramic 32 56 77 58 51 274
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 34 49 62 68 60 273
431 Combustion 36 62 66 54 54 272
048 Gas: Heating and Illuminating 36 45 46 60 81 268
144 Woodworking 51 37 64 80 36 268
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 67 48 50 45 48 258
368 Horology: Time Measuring Systems or Devices 66 36 61 60 31 254
101 Printing 51 45 51 51 52 250
172 Earth Working 25 49 70 52 53 249
452 Butchering 55 51 48 52 37 243
355 Photocopying 60 35 45 54 39 233
384 Bearings 51 44 45 42 51 233
269 Work Holders 24 15 38 64 88 229
454 Ventilation 37 53 49 45 43 227
131 Tobacco 21 25 66 60 48 220
392 Electric Resistance Heating Devices 24 26 50 54 64 218
441 Buoys, Rafts, and Aquatic Devices 51 36 48 39 43 217
236 Automatic Temperature and Humidity Regulation 29 33 58 52 37 209
472 Amusement Devices 26 21 56 54 52 209
408 Cutting by Use of Rotating Axially Moving Tool 32 44 40 50 42 208
116 Signals and Indicators 38 45 57 30 37 207
152 Resilient Tires and Wheels 37 33 32 47 58 207
169 Fire Extinguishers 39 29 65 29 43 205
383 Flexible Bags 34 40 39 41 51 205
418 Rotary Expansible Chamber Devices 27 33 32 54 59 205
303 Fluid-Pressure and Analogous Brake Systems 46 32 49 37 39 203
376 Induced Nuclear Reactions: Processes, Systems, and Elements 18 46 35 45 54 198
111 Planting 39 42 49 35 32 197
267 Spring Devices 40 26 29 41 54 190
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 33 30 26 44 53 186
105 Railway Rolling Stock 27 32 43 45 38 185
474 Endless Belt Power Transmission Systems or Components 21 25 45 49 44 184
104 Railways 26 30 40 36 51 183
100 Presses 47 29 30 41 34 181
400 Typewriting Machines 39 31 37 37 34 178
173 Tool Driving or Impacting 26 31 40 33 45 175
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 23 33 27 40 47 170
301 Land Vehicles: Wheels and Axles 40 31 42 38 18 169
450 Foundation Garments 22 25 35 35 51 168
256 Fences 35 43 33 29 27 167
299 Mining or In Situ Disintegration of Hard Material 40 25 27 39 33 164
504 Plant Protecting and Regulating Compositions 11 13 22 33 77 156
149 Explosive and Thermic Compositions or Charges 5 9 26 56 58 154
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 22 23 33 44 26 148
266 Metallurgical Apparatus 17 34 22 34 38 145
112 Sewing 30 26 26 22 39 143
322 Electricity: Single Generator Systems 32 30 22 31 28 143
092 Expansible Chamber Devices 40 29 26 27 19 141
122 Liquid Heaters and Vaporizers 30 30 30 25 23 138
445 Electric Lamp or Space Discharge Component or Device Manufacturing 22 27 28 25 29 131
014 Bridges 18 23 15 40 32 128
082 Turning (e.g., for metal working) 17 26 28 27 30 128
223 Apparel Apparatus 32 13 28 26 29 128
419 Powder Metallurgy Processes 23 28 30 20 26 127
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 14 22 40 27 21 124
051 Abrasive Tool Making Process, Material, or Composition 16 28 8 39 32 123
177 Weighing Scales 24 35 24 19 19 121
068 Textiles: Fluid Treating Apparatus 20 30 26 25 17 118
270 Sheet-Material Associating 11 32 23 29 21 116
293 Vehicle Fenders 26 27 19 18 26 116
337 Electricity: Electrothermally or Thermally Actuated Switches 24 25 25 24 18 116
588 Hazardous or Toxic Waste Destruction or Containment 14 19 23 33 26 115
460 Crop Threshing or Separating 20 26 24 24 20 114
027 Undertaking 29 17 17 27 22 112
063 Jewelry 26 19 22 17 22 106
409 Gear Cutting, Milling, or Planing 30 21 18 20 17 106
110 Furnaces 20 15 27 16 27 105
232 Deposit and Collection Receptacles 37 20 16 15 15 103
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 17 6 15 26 37 101
283 Printed Matter 19 9 23 32 17 100
720 Dynamic Optical Information Storage or Retrieval 26 21 20 20 13 100
338 Electrical Resistors 14 8 27 16 33 98
066 Textiles: Knitting 12 29 21 24 11 97
184 Lubrication 12 8 24 28 25 97
071 Chemistry: Fertilizers 4 13 25 26 28 96
494 Imperforate Bowl: Centrifugal Separators 14 15 14 23 28 94
407 Cutters, for Shaping 20 21 11 26 15 93
246 Railway Switches and Signals 15 11 22 16 23 87
249 Static Molds 14 15 18 22 18 87
150 Purses, Wallets, and Protective Covers 10 22 21 12 17 82
203 Distillation: Processes, Separatory 13 10 13 16 30 82
279 Chucks or Sockets 16 14 15 17 17 79
190 Trunks and Hand-Carried Luggage 15 13 9 22 18 77
194 Check-Actuated Control Mechanisms 6 11 22 15 22 76
505 Superconductor Technology: Apparatus, Material, Process 7 13 24 16 16 76
406 Conveyors: Fluid Current 13 13 18 18 13 75
420 Alloys or Metallic Compositions 13 7 24 10 20 74
125 Stone Working 16 6 21 14 16 73
054 Harness for Working Animal 20 18 7 6 19 70
139 Textiles: Weaving 8 19 18 12 13 70
332 Modulators 3 12 26 19 10 70
202 Distillation: Apparatus 12 11 14 16 16 69
057 Textiles: Spinning, Twisting, and Twining 15 16 10 13 14 68
091 Motors: Expansible Chamber Type 13 17 11 13 13 67
212 Traversing Hoists 17 18 13 14 4 66
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 5 17 15 29 66
007 Compound Hand Tools 9 12 12 17 13 63
305 Wheel Substitutes for Land Vehicles 13 7 14 19 10 63
298 Land Vehicles: Dumping 11 5 13 17 13 59
281 Books, Strips, and Leaves 11 8 23 9 6 57
432 Heating 15 7 13 14 7 56
238 Railways: Surface Track 10 6 14 13 12 55
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 10 5 15 8 15 53
012 Boot and Shoe Making 7 6 13 12 12 50
086 Ammunition and Explosive-Charge Making 9 12 13 6 10 50
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 4 12 8 7 13 44
028 Textiles: Manufacturing 9 15 6 8 5 43
157 Wheelwright Machines 10 7 6 8 12 43
213 Railway Draft Appliances 6 9 13 8 7 43
225 Severing by Tearing or Breaking 6 6 9 9 13 43
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 9 7 6 11 9 42
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 8 8 16 6 4 42
076 Metal Tools and Implements, Making 3 4 13 10 11 41
201 Distillation: Processes, Thermolytic 3 7 10 8 12 40
038 Textiles: Ironing or Smoothing 6 6 9 6 12 39
476 Friction Gear Transmission Systems or Components 11 1 8 11 8 39
193 Conveyors, Chutes, Skids, Guides, and Ways 10 8 10 8 1 37
352 Optics: Motion Pictures 8 7 6 5 11 37
412 Bookbinding: Process and Apparatus 5 7 12 4 8 36
059 Chain, Staple, and Horseshoe Making 8 6 4 11 6 35
512 Perfume Compositions 8 7 12 4 4 35
140 Wireworking 13 4 3 7 6 33
019 Textiles: Fiber Preparation 6 6 10 3 7 32
127 Sugar, Starch, and Carbohydrates 2 4 9 5 8 28
492 Roll or Roller 4 4 6 8 6 28
237 Heating Systems 3 2 4 7 10 26
373 Industrial Electric Heating Furnaces 9 2 7 3 5 26
289 Knots and Knot Tying 4 5 3 6 7 25
023 Chemistry: Physical Processes 2 2 4 7 6 21
159 Concentrating Evaporators 2 3 4 8 4 21
329 Demodulators 6 6 2 4 3 21
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 7 3 5 5 1 21
026 Textiles: Cloth Finishing 2 1 6 2 9 20
109 Safes, Bank Protection, or a Related Device 4 2 4 2 8 20
191 Electricity: Transmission To Vehicles 2 4 0 9 4 19
087 Textiles: Braiding, Netting, and Lace Making 3 1 3 4 7 18
483 Tool Changing 6 4 4 2 2 18
186 Merchandising 3 4 3 5 2 17
453 Coin Handling 2 5 5 1 4 17
226 Advancing Material of Indeterminate Length 6 2 2 2 3 15
168 Farriery 5 6 2 0 1 14
388 Electricity: Motor Control Systems 4 4 5 1 0 14
196 Mineral Oils: Apparatus 2 1 1 6 3 13
449 Bee Culture (propagating, raising, caring for bees) 1 3 1 5 2 12
178 Telegraphy 1 1 1 0 8 11
171 Unearthing Plants or Buried Objects 1 2 5 1 0 9
413 Sheet Metal Container Making 2 1 0 3 2 8
217 Wooden Receptacles 2 0 3 1 1 7
300 Brush, Broom, and Mop Making 0 0 5 1 1 7
231 Whips and Whip Apparatus 2 1 1 0 0 4
291 Track Sanders 0 2 1 1 0 4
334 Tuners 1 1 1 0 1 4
346 Recorders 2 0 1 0 1 4
069 Leather Manufactures 0 1 0 1 1 3
185 Motors: Spring, Weight, or Animal Powered 0 0 1 0 2 3
234 Selective Cutting (e.g., Punching) 1 0 1 0 1 3
260 Chemistry of Carbon Compounds 0 2 0 1 0 3
295 Railway Wheels and Axles 1 0 0 0 1 2
462 Books, Strips, and Leaves for Manifolding 1 0 0 0 1 2
142 Wood Turning 0 1 0 0 0 1
147 Coopering 0 0 1 0 0 1
258 Railway Mail Delivery 0 0 0 0 1 1
314 Electric Lamp and Discharge Devices: Consumable Electrodes 0 1 0 0 0 1
ALL ALL CLASSES 77502 82382 107791 108622 121026 497323


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