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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 2003 - 2007 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 either by year of patent grant or by year of patent application.
Class Class Title 2003 2004 2005 2006 2007 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 4061 2983 2611 3263 2899 15817
438 Semiconductor Device Manufacturing: Process 2321 2299 2014 2068 2011 10713
435 Chemistry: Molecular Biology and Microbiology 2005 1741 1524 1920 1757 8947
370 Multiplex Communications 1369 1703 1607 2298 1842 8819
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1717 1819 1688 1699 1536 8459
455 Telecommunications 903 1117 1095 1959 1720 6794
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 916 1193 1149 1778 1677 6713
128 Surgery (includes Class 600) 1732 1349 1036 1204 1034 6355
707 DP: Database and File Management or Data Structures (Data Processing) 1092 1113 957 1435 1275 5872
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1474 1241 1012 1098 940 5765
532 Organic Compounds (includes Classes 532-570) 1193 1044 939 1292 1028 5496
428 Stock Material or Miscellaneous Articles 1430 1322 1039 824 797 5412
385 Optical Waveguides 1061 1103 1031 1000 924 5119
340 Communications: Electrical 628 934 916 1429 1104 5011
375 Pulse or Digital Communications 822 873 811 1243 1086 4835
324 Electricity: Measuring and Testing 961 978 910 1029 897 4775
345 Computer Graphics Processing and Selective Visual Display Systems 827 940 846 1197 932 4742
711 Memory (Electrical Computers and Digital Processing Systems) 863 936 893 1125 916 4733
702 DP: Measuring, Calibrating, or Testing (Data Processing) 844 955 917 1028 907 4651
073 Measuring and Testing 1049 844 876 970 894 4633
714 Error Detection/Correction and Fault Detection/Recovery 820 823 733 1089 1114 4579
382 Image Analysis 794 917 658 1086 1033 4488
606 Surgery (instruments) 1235 865 729 829 783 4441
365 Static Information Storage and Retrieval 841 852 845 881 900 4319
250 Radiant Energy 790 849 716 1022 819 4196
361 Electricity: Electrical Systems and Devices 980 878 698 766 866 4188
439 Electrical Connectors 728 855 774 888 794 4039
359 Optical: Systems and Elements 807 818 792 860 716 3993
379 Telephonic Communications 709 888 650 918 673 3838
713 Support (Electrical Computers and Digital Processing Systems) 461 572 652 1067 980 3732
604 Surgery (Medicators and Receptors) 1195 814 617 590 484 3700
356 Optics: Measuring and Testing 653 651 577 786 796 3463
710 Input/Output (Electrical Computers and Digital Processing Systems) 692 862 623 741 523 3441
360 Dynamic Magnetic Information Storage or Retrieval 644 784 587 790 622 3427
029 Metal Working 710 679 613 749 610 3361
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 359 257 617 1007 930 3170
280 Land Vehicles 636 615 645 606 627 3129
210 Liquid Purification or Separation 594 642 551 546 598 2931
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 468 459 546 760 697 2930
123 Internal-Combustion Engines 604 577 566 615 560 2922
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 660 589 522 619 521 2911
700 DP: Generic Control Systems or Specific Applications (Data Processing) 559 632 516 666 496 2869
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 585 602 551 494 495 2727
362 Illumination 515 466 485 612 626 2704
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 505 446 432 699 512 2594
607 Surgery: Light, Thermal, and Electrical Application 477 441 413 582 587 2500
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 450 488 385 614 557 2494
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 442 452 339 610 614 2457
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 562 533 399 483 420 2397
052 Static Structures (e.g., Buildings) 583 555 478 408 330 2354
219 Electric Heating 499 528 437 473 406 2343
348 Television 441 436 376 555 439 2247
060 Power Plants 452 459 446 516 373 2246
473 Games Using Tangible Projectile 458 424 428 494 433 2237
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 568 513 358 440 354 2233
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 637 507 389 360 327 2220
062 Refrigeration 580 433 328 432 440 2213
347 Incremental Printing of Symbolic Information 612 517 402 340 316 2187
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 303 400 360 507 614 2184
296 Land Vehicles: Bodies and Tops 391 418 394 454 426 2083
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 344 300 293 473 616 2026
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 524 518 356 330 259 1987
717 DP: Software Development, Installation, and Management (Data Processing) 252 295 356 554 511 1968
427 Coating Processes 540 449 362 260 290 1901
451 Abrading 427 367 410 434 259 1897
174 Electricity: Conductors and Insulators 390 356 383 372 358 1859
341 Coded Data Generation or Conversion 381 352 330 388 376 1827
137 Fluid Handling 385 360 392 391 289 1817
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 261 291 236 504 462 1754
326 Electronic Digital Logic Circuitry 337 340 341 334 389 1741
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 426 358 295 290 359 1728
358 Facsimile and Static Presentation Processing 279 276 293 450 396 1694
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 389 378 308 326 288 1689
248 Supports (e.g., for holding articles, etc.) 501 299 252 319 302 1673
343 Communications: Radio Wave Antennas 299 286 390 373 288 1636
206 Special Receptacle or Package 362 319 354 312 265 1612
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 359 361 262 327 299 1608
310 Electrical Generator or Motor Structure 274 421 351 306 225 1577
330 Amplifiers 329 324 223 329 328 1533
297 Chairs and Seats 328 342 245 320 261 1496
372 Coherent Light Generators 304 400 274 278 201 1457
239 Fluid Sprinkling, Spraying, and Diffusing 295 320 274 303 211 1403
005 Beds 293 300 289 291 210 1383
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 124 181 263 448 349 1365
244 Aeronautics and Astronautics 295 288 260 264 244 1351
426 Food or Edible Material: Processes, Compositions, and Products 401 316 185 230 188 1320
436 Chemistry: Analytical and Immunological Testing 298 271 237 208 260 1274
002 Apparel 243 295 244 294 185 1261
482 Exercise Devices 257 228 188 330 246 1249
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 226 256 258 262 242 1244
726 Information Security 96 158 171 376 428 1229
119 Animal Husbandry 315 215 225 247 220 1222
378 X-Ray or Gamma Ray Systems or Devices 216 228 222 282 268 1216
222 Dispensing (apparatus and process) 253 268 249 253 186 1209
033 Geometrical Instruments 238 224 257 234 255 1208
463 Amusement Devices: Games 258 274 237 199 218 1186
015 Brushing, Scrubbing, and General Cleaning 277 232 201 215 260 1185
398 Optical Communications 225 179 168 292 300 1164
204 Chemistry: Electrical and Wave Energy 311 262 228 177 184 1162
180 Motor Vehicles 255 203 228 224 222 1132
315 Electric Lamp and Discharge Devices: Systems 284 229 204 220 191 1128
114 Ships 197 184 233 238 206 1058
134 Cleaning and Liquid Contact with Solids 315 229 182 161 160 1047
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 280 242 165 190 155 1032
318 Electricity: Motive Power Systems 185 213 183 247 202 1030
333 Wave Transmission Lines and Networks 227 222 206 193 173 1021
423 Chemistry of Inorganic Compounds 217 200 166 237 194 1014
381 Electrical Audio Signal Processing Systems and Devices 172 200 142 268 231 1013
252 Compositions 267 218 145 208 173 1011
414 Material or Article Handling 275 232 163 164 144 978
405 Hydraulic and Earth Engineering 204 196 183 236 145 964
313 Electric Lamp and Discharge Devices 235 235 158 160 132 920
273 Amusement Devices: Games 234 169 149 177 188 917
053 Package Making 201 212 207 169 126 915
399 Electrophotography 198 183 139 184 206 910
165 Heat Exchange 139 190 187 248 141 905
211 Supports: Racks 216 187 175 174 146 898
043 Fishing, Trapping, and Vermin Destroying 252 196 172 148 123 891
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 177 205 187 169 151 889
198 Conveyors: Power-Driven 211 164 167 172 171 885
004 Baths, Closets, Sinks, and Spittoons 216 216 168 151 125 876
106 Compositions: Coating or Plastic 215 223 124 159 154 875
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 199 180 175 166 155 875
040 Card, Picture, or Sign Exhibiting 225 194 149 148 150 866
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 105 195 197 232 135 864
725 Interactive Video Distribution Systems 148 157 119 243 197 864
331 Oscillators 171 174 143 180 187 855
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 170 177 116 194 193 850
433 Dentistry 156 163 154 205 158 836
434 Education and Demonstration 224 185 167 137 123 836
415 Rotary Kinetic Fluid Motors or Pumps 173 149 180 194 136 832
220 Receptacles 187 174 133 184 147 825
351 Optics: Eye Examining, Vision Testing and Correcting 166 152 141 172 184 815
417 Pumps 243 177 115 159 116 810
175 Boring or Penetrating the Earth 173 160 133 178 161 805
118 Coating Apparatus 228 180 144 136 113 801
323 Electricity: Power Supply or Regulation Systems 159 148 137 191 162 797
708 Arithmetic Processing and Calculating (Electrical Computers) 150 171 145 202 122 790
446 Amusement Devices: Toys 265 191 121 111 96 784
081 Tools 130 133 145 195 178 781
251 Valves and Valve Actuation 130 140 186 188 104 748
706 DP: Artificial Intelligence (Data Processing) 182 109 142 163 150 746
475 Planetary Gear Transmission Systems or Components 140 162 97 154 179 732
072 Metal Deforming 131 125 121 195 147 719
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 94 147 142 190 144 717
242 Winding, Tensioning, or Guiding 178 159 115 134 129 715
380 Cryptography 54 78 139 219 221 711
084 Music 127 136 104 148 185 700
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 170 179 128 114 102 693
083 Cutting 143 168 111 160 100 682
200 Electricity: Circuit Makers and Breakers 126 169 135 149 102 681
030 Cutlery 171 142 124 140 100 677
095 Gas Separation: Processes 188 133 105 126 103 655
285 Pipe Joints or Couplings 150 138 130 145 79 642
363 Electric Power Conversion Systems 147 127 127 128 113 642
036 Boots, Shoes, and Leggings 113 117 133 155 122 640
224 Package and Article Carriers 175 187 115 89 70 636
416 Fluid Reaction Surfaces (i.e., Impellers) 126 118 115 137 128 624
216 Etching a Substrate: Processes 136 131 114 125 108 614
074 Machine Element or Mechanism 162 122 99 103 120 606
307 Electrical Transmission or Interconnection Systems 145 135 70 139 117 606
602 Surgery: Splint, Brace, or Bandage 140 115 124 137 90 606
024 Buckles, Buttons, Clasps, Etc. 170 109 88 123 115 605
056 Harvesters 128 116 141 113 75 573
101 Printing 133 172 86 121 56 568
070 Locks 157 111 108 105 83 564
188 Brakes 138 98 112 121 89 558
369 Dynamic Information Storage or Retrieval 144 117 103 104 90 558
042 Firearms 140 120 88 103 103 554
353 Optics: Image Projectors 88 107 100 131 119 545
404 Road Structure, Process, or Apparatus 105 113 87 133 105 543
162 Paper Making and Fiber Liberation 149 123 76 97 94 539
228 Metal Fusion Bonding 134 118 127 88 71 538
585 Chemistry of Hydrocarbon Compounds 108 107 86 103 133 537
312 Supports: Cabinet Structure 146 123 105 86 56 516
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 97 112 124 104 78 515
182 Fire Escape, Ladder, or Scaffold 100 115 108 111 78 512
401 Coating Implements with Material Supply 113 107 90 94 96 500
320 Electricity: Battery or Capacitor Charging or Discharging 125 106 109 72 82 494
367 Communications, Electrical: Acoustic Wave Systems and Devices 89 101 90 97 116 493
160 Flexible or Portable Closure, Partition, or Panel 110 109 95 99 76 489
366 Agitating (e.g., of articles and materials) 105 103 91 82 106 487
148 Metal Treatment 152 112 84 74 64 486
277 Seal for a Joint or Juncture 137 115 98 85 48 483
292 Closure Fasteners 126 79 83 101 93 482
016 Miscellaneous Hardware 117 97 87 108 66 475
102 Ammunition and Explosives 121 88 93 98 75 475
099 Foods and Beverages: Apparatus 132 117 75 93 56 473
241 Solid Material Comminution or Disintegration 97 71 81 102 121 472
164 Metal Founding 127 75 85 91 92 470
254 Implements or Apparatus for Applying Pushing or Pulling Force 103 79 86 107 87 462
221 Article Dispensing 119 89 71 107 74 460
290 Prime-Mover Dynamo Plants 49 89 79 122 119 458
047 Plant Husbandry 151 92 79 76 53 451
400 Typewriting Machines 98 109 103 77 59 446
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 118 121 72 61 70 442
192 Clutches and Power-Stop Control 99 97 73 94 78 441
108 Horizontally Supported Planar Surfaces 109 113 83 81 49 435
440 Marine Propulsion 101 83 77 95 77 433
294 Handling: Hand and Hoist-Line Implements 103 57 66 100 103 429
349 Liquid Crystal Cells, Elements and Systems 101 96 97 76 59 429
208 Mineral Oils: Processes and Products 99 90 66 80 80 415
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 76 95 84 92 65 412
431 Combustion 104 102 100 55 50 411
209 Classifying, Separating, and Assorting Solids 94 91 79 70 75 409
355 Photocopying 73 78 95 89 74 409
034 Drying and Gas or Vapor Contact with Solids 86 104 91 86 40 407
124 Mechanical Guns and Projectors 89 120 68 62 68 407
396 Photography 123 122 55 58 49 407
055 Gas Separation 84 88 75 61 98 406
386 Television Signal Processing for Dynamic Recording or Reproducing 67 74 66 75 117 399
403 Joints and Connections 118 98 77 56 42 391
271 Sheet Feeding or Delivering 123 78 67 63 57 388
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 79 84 76 72 76 387
336 Inductor Devices 58 63 89 91 78 379
126 Stoves and Furnaces 95 107 94 48 30 374
454 Ventilation 98 95 70 66 37 366
374 Thermal Measuring and Testing 81 64 77 92 49 363
049 Movable or Removable Closures 78 98 74 67 43 360
410 Freight Accommodation On Freight Carrier 71 75 66 67 61 340
601 Surgery: Kinesitherapy 63 68 55 75 79 340
065 Glass Manufacturing 88 113 46 43 45 335
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 83 81 67 58 45 334
096 Gas Separation: Apparatus 79 79 59 54 60 331
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 98 84 44 62 40 328
089 Ordnance 86 78 56 54 54 328
227 Elongated-Member-Driving Apparatus 49 71 52 82 72 326
132 Toilet 91 70 40 48 76 325
215 Bottles and Jars 69 57 65 71 58 320
181 Acoustics 89 64 65 37 63 318
441 Buoys, Rafts, and Aquatic Devices 63 58 56 77 64 318
229 Envelopes, Wrappers, and Paperboard Boxes 85 46 71 51 63 316
138 Pipes and Tubular Conduits 74 61 66 54 53 308
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 89 83 50 42 41 305
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 168 80 57 0 0 305
037 Excavating 70 71 57 59 41 298
261 Gas and Liquid Contact Apparatus 73 69 34 68 52 296
384 Bearings 83 60 56 58 39 296
135 Tent, Canopy, Umbrella, or Cane 50 74 47 53 66 290
269 Work Holders 70 58 59 53 41 281
368 Horology: Time Measuring Systems or Devices 58 60 44 67 52 281
172 Earth Working 59 63 64 64 30 280
392 Electric Resistance Heating Devices 37 52 64 66 58 277
383 Flexible Bags 57 47 68 54 44 270
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 82 74 35 34 41 266
501 Compositions: Ceramic 63 59 47 56 37 262
507 Earth Boring, Well Treating, and Oil Field Chemistry 49 61 37 57 56 260
301 Land Vehicles: Wheels and Axles 67 49 45 54 32 247
408 Cutting by Use of Rotating Axially Moving Tool 54 35 38 66 53 246
152 Resilient Tires and Wheels 59 47 44 55 39 244
303 Fluid-Pressure and Analogous Brake Systems 69 43 42 46 34 234
092 Expansible Chamber Devices 55 40 41 43 48 227
256 Fences 61 39 47 50 29 226
100 Presses 51 45 40 47 40 223
445 Electric Lamp or Space Discharge Component or Device Manufacturing 60 50 42 48 22 222
452 Butchering 42 30 34 62 50 218
144 Woodworking 60 31 28 57 39 215
267 Spring Devices 63 44 36 38 34 215
474 Endless Belt Power Transmission Systems or Components 54 38 43 46 30 211
418 Rotary Expansible Chamber Devices 53 56 29 36 36 210
116 Signals and Indicators 42 51 44 34 37 208
136 Batteries: Thermoelectric and Photoelectric 55 47 25 35 46 208
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 39 48 40 55 23 205
111 Planting 49 47 31 42 35 204
477 Interrelated Power Delivery Controls, Including Engine Control 44 29 38 41 50 202
177 Weighing Scales 42 48 31 34 45 200
044 Fuel and Related Compositions 54 61 30 16 37 198
236 Automatic Temperature and Humidity Regulation 36 38 32 36 44 186
173 Tool Driving or Impacting 36 33 30 45 26 170
293 Vehicle Fenders 32 38 37 31 31 169
504 Plant Protecting and Regulating Compositions 51 39 34 27 18 169
249 Static Molds 32 45 24 37 30 168
122 Liquid Heaters and Vaporizers 47 34 33 28 25 167
223 Apparel Apparatus 29 38 30 26 43 166
376 Induced Nuclear Reactions: Processes, Systems, and Elements 49 49 34 23 11 166
169 Fire Extinguishers 32 28 35 40 30 165
105 Railway Rolling Stock 43 33 34 29 24 163
472 Amusement Devices 38 35 37 28 25 163
409 Gear Cutting, Milling, or Planing 26 27 35 36 35 159
091 Motors: Expansible Chamber Type 37 33 32 30 24 156
131 Tobacco 34 46 28 20 27 155
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 33 25 21 33 40 152
063 Jewelry 40 32 17 31 29 149
283 Printed Matter 36 44 28 23 18 149
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 40 32 22 34 20 148
232 Deposit and Collection Receptacles 19 22 23 36 46 146
051 Abrasive Tool Making Process, Material, or Composition 45 38 20 14 28 145
110 Furnaces 27 27 40 33 18 145
112 Sewing 21 35 27 32 22 137
338 Electrical Resistors 30 20 16 42 29 137
104 Railways 47 25 23 20 21 136
149 Explosive and Thermic Compositions or Charges 40 35 39 19 2 135
337 Electricity: Electrothermally or Thermally Actuated Switches 49 39 23 8 13 132
407 Cutters, for Shaping 32 29 18 29 19 127
007 Compound Hand Tools 22 26 30 28 20 126
450 Foundation Garments 16 24 28 30 28 126
014 Bridges 21 26 22 27 25 121
432 Heating 49 21 19 15 12 116
266 Metallurgical Apparatus 29 25 21 18 19 112
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 38 21 12 20 20 111
082 Turning (e.g., for metal working) 44 17 15 18 15 109
419 Powder Metallurgy Processes 35 25 18 13 17 108
322 Electricity: Single Generator Systems 18 16 18 31 24 107
494 Imperforate Bowl: Centrifugal Separators 38 23 15 21 10 107
048 Gas: Heating and Illuminating 15 19 15 24 33 106
125 Stone Working 11 23 22 34 16 106
299 Mining or In Situ Disintegration of Hard Material 25 22 19 23 17 106
054 Harness for Working Animal 28 24 9 20 24 105
184 Lubrication 26 18 19 25 16 104
190 Trunks and Hand-Carried Luggage 30 14 18 27 14 103
460 Crop Threshing or Separating 17 26 21 16 20 100
194 Check-Actuated Control Mechanisms 25 20 25 16 11 97
406 Conveyors: Fluid Current 25 22 6 23 19 95
027 Undertaking 19 14 12 10 37 92
066 Textiles: Knitting 16 20 21 24 11 92
225 Severing by Tearing or Breaking 17 28 15 17 13 90
279 Chucks or Sockets 32 18 19 9 11 89
028 Textiles: Manufacturing 22 17 8 23 18 88
057 Textiles: Spinning, Twisting, and Twining 18 20 12 16 20 86
720 Dynamic Optical Information Storage or Retrieval 13 22 13 25 11 84
139 Textiles: Weaving 11 20 20 20 12 83
246 Railway Switches and Signals 25 16 9 17 12 79
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 15 11 15 20 18 79
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 18 23 16 12 9 78
505 Superconductor Technology: Apparatus, Material, Process 26 16 16 11 9 78
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 17 15 23 15 6 76
588 Hazardous or Toxic Waste Destruction or Containment 23 10 12 16 15 76
068 Textiles: Fluid Treating Apparatus 27 10 10 10 17 74
352 Optics: Motion Pictures 18 20 8 18 9 73
298 Land Vehicles: Dumping 18 18 16 11 9 72
150 Purses, Wallets, and Protective Covers 18 12 7 12 14 63
237 Heating Systems 21 16 11 10 3 61
202 Distillation: Apparatus 16 12 8 14 10 60
140 Wireworking 12 8 5 20 14 59
193 Conveyors, Chutes, Skids, Guides, and Ways 14 14 9 15 7 59
212 Traversing Hoists 15 10 6 17 11 59
071 Chemistry: Fertilizers 16 17 13 7 5 58
203 Distillation: Processes, Separatory 12 9 16 11 9 57
038 Textiles: Ironing or Smoothing 10 13 9 12 12 56
270 Sheet-Material Associating 17 18 5 10 6 56
281 Books, Strips, and Leaves 10 19 14 9 4 56
305 Wheel Substitutes for Land Vehicles 20 9 10 7 10 56
420 Alloys or Metallic Compositions 19 18 11 5 3 56
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 8 17 9 13 8 55
059 Chain, Staple, and Horseshoe Making 8 10 16 12 8 54
373 Industrial Electric Heating Furnaces 9 15 6 14 9 53
332 Modulators 17 8 10 9 6 50
086 Ammunition and Explosive-Charge Making 13 5 9 14 7 48
476 Friction Gear Transmission Systems or Components 3 6 8 17 14 48
226 Advancing Material of Indeterminate Length 13 8 9 9 8 47
238 Railways: Surface Track 10 13 6 12 6 47
492 Roll or Roller 11 10 11 6 5 43
512 Perfume Compositions 12 4 5 12 10 43
412 Bookbinding: Process and Apparatus 15 10 8 6 3 42
076 Metal Tools and Implements, Making 14 6 4 3 12 39
453 Coin Handling 17 12 3 4 3 39
157 Wheelwright Machines 7 4 7 7 9 34
213 Railway Draft Appliances 5 10 4 7 8 34
186 Merchandising 11 9 3 3 5 31
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 3 8 5 10 3 29
191 Electricity: Transmission To Vehicles 9 7 4 6 1 27
109 Safes, Bank Protection, or a Related Device 7 5 9 2 2 25
329 Demodulators 7 9 2 5 2 25
001 ** Classification Undetermined ** 1 0 7 6 10 24
168 Farriery 9 4 4 3 3 23
388 Electricity: Motor Control Systems 3 6 3 5 4 21
413 Sheet Metal Container Making 5 9 1 3 3 21
012 Boot and Shoe Making 1