U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

Patenting By Geographic Region (State and Country), Breakout By Technology Class
Count of 1997 - 2001 Utility Patent Grants By Calendar Year of Grant

[Explanation of Data]

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period
Originating From

JAPAN

(patent origin is determined by the residence of the first-named inventor)

(technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data')
 
Class Class Title 1997 1998 1999 2000 2001 Total
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 739 1006 1035 1052 1100 4932
428 Stock Material or Miscellaneous Articles 725 893 868 886 996 4368
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 682 749 770 805 887 3893
438 Semiconductor Device Manufacturing: Process 479 566 823 887 1119 3874
359 Optics: Systems (Including Communication) and Elements 574 801 757 750 807 3689
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 617 763 771 768 711 3630
369 Dynamic Information Storage or Retrieval 570 771 684 587 690 3302
399 Electrophotography 516 707 720 691 628 3262
347 Incremental Printing of Symbolic Information 298 508 577 791 903 3077
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 561 625 612 570 689 3057
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 449 675 607 592 640 2963
365 Static Information Storage and Retrieval 450 550 562 659 701 2922
532 Organic Compounds (includes Classes 532-570) 463 548 559 440 536 2546
123 Internal-Combustion Engines 438 506 498 478 579 2499
396 Photography 535 649 456 448 351 2439
439 Electrical Connectors 346 355 463 532 578 2274
360 Dynamic Magnetic Information Storage or Retrieval 336 462 479 496 421 2194
382 Image Analysis 225 476 515 458 454 2128
358 Facsimile and Static Presentation Processing 342 558 443 404 375 2122
348 Television 367 478 444 367 365 2021
349 Liquid Crystal Cells, Elements and Systems 247 370 297 416 383 1713
310 Electrical Generator or Motor Structure 184 352 336 373 407 1652
435 Chemistry: Molecular Biology and Microbiology 259 412 333 282 305 1591
375 Pulse or Digital Communications 228 306 296 345 321 1496
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 165 256 315 328 367 1431
250 Radiant Energy 215 284 292 283 313 1387
370 Multiplex Communications 190 274 297 292 303 1356
029 Metal Working 213 279 248 283 317 1340
073 Measuring and Testing 252 286 268 253 260 1319
455 Telecommunications 144 283 272 295 305 1299
361 Electricity: Electrical Systems and Devices 168 250 222 256 322 1218
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 111 197 218 276 396 1198
324 Electricity: Measuring and Testing 235 214 179 220 293 1141
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 207 255 229 209 168 1068
714 Error Detection/Correction and Fault Detection/Recovery 167 261 235 217 185 1065
427 Coating Processes 194 191 235 249 189 1058
313 Electric Lamp and Discharge Devices 112 198 236 226 279 1051
340 Communications: Electrical 159 234 221 221 193 1028
386 Television Signal Processing for Dynamic Recording or Reproducing 124 228 236 209 227 1024
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 159 204 217 208 218 1006
356 Optics: Measuring and Testing 183 266 215 207 130 1001
385 Optical Waveguides 155 198 173 195 266 987
219 Electric Heating 123 186 201 239 230 979
318 Electricity: Motive Power Systems 145 231 218 202 182 978
128 Surgery (includes Class 600) 156 240 209 167 176 948
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 143 167 145 215 265 935
252 Compositions 137 219 210 175 153 894
062 Refrigeration 137 152 156 167 209 821
060 Power Plants 113 164 156 139 230 802
355 Photocopying 123 141 170 137 224 795
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 119 213 190 128 143 793
148 Metal Treatment 132 146 153 144 190 765
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 83 171 168 171 170 763
711 Memory (Electrical Computers and Digital Processing Systems) 116 170 150 149 146 731
710 Input/Output (Electrical Computers and Digital Processing Systems) 111 174 155 149 137 726
372 Coherent Light Generators 129 155 149 141 134 708
074 Machine Element or Mechanism 101 160 147 145 144 697
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 109 180 173 118 99 679
451 Abrading 79 84 121 186 202 672
400 Typewriting Machines 121 149 143 145 107 665
700 DP: Generic Control Systems or Specific Applications (Data Processing) 65 173 143 108 170 659
180 Motor Vehicles 63 122 156 161 142 644
118 Coating Apparatus 122 115 103 163 139 642
333 Wave Transmission Lines and Networks 83 122 145 153 123 626
280 Land Vehicles 70 106 121 150 176 623
084 Music 117 124 142 112 115 610
204 Chemistry: Electrical and Wave Energy 84 115 97 163 139 598
341 Coded Data Generation or Conversion 119 158 108 88 116 589
417 Pumps 77 79 101 148 148 553
315 Electric Lamp and Discharge Devices: Systems 61 100 100 120 160 541
362 Illumination 75 80 87 145 154 541
242 Winding, Tensioning, or Guiding 106 130 117 99 84 536
477 Interrelated Power Delivery Controls, Including Engine Control 112 128 117 103 68 528
363 Electric Power Conversion Systems 82 92 111 109 131 525
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 83 93 131 116 99 522
174 Electricity: Conductors and Insulators 59 79 69 113 193 513
271 Sheet Feeding or Delivering 75 69 121 122 126 513
210 Liquid Purification or Separation 90 101 91 94 130 506
106 Compositions: Coating or Plastic 93 112 119 94 79 497
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 60 110 133 108 83 494
320 Electricity: Battery or Capacitor Charging or Discharging 80 75 103 105 131 494
713 Support (Electrical Computers and Digital Processing Systems) 62 100 114 106 99 481
072 Metal Deforming 81 98 104 79 111 473
101 Printing 80 95 97 99 101 472
379 Telephonic Communications 84 120 89 70 88 451
423 Chemistry of Inorganic Compounds 71 91 95 98 94 449
343 Communications: Radio Wave Antennas 44 55 116 110 123 448
303 Fluid-Pressure and Analogous Brake Systems 58 75 106 100 107 446
384 Bearings 67 79 78 106 115 445
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 84 122 65 77 92 440
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 98 113 100 61 67 439
200 Electricity: Circuit Makers and Breakers 53 101 102 80 93 429
137 Fluid Handling 53 84 88 94 105 424
501 Compositions: Ceramic 84 76 99 75 90 424
192 Clutches and Power-Stop Control 78 71 115 96 63 423
165 Heat Exchange 60 59 97 89 115 420
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 70 92 90 84 79 415
326 Electronic Digital Logic Circuitry 73 58 62 90 112 395
426 Food or Edible Material: Processes, Compositions, and Products 57 59 100 98 71 385
330 Amplifiers 44 66 83 93 98 384
473 Games Using Tangible Projectile 53 104 66 65 88 376
381 Electrical Audio Signal Processing Systems and Devices 66 110 68 79 46 369
134 Cleaning and Liquid Contact with Solids 43 63 83 77 99 365
604 Surgery (Medicators and Receptors) 65 80 75 60 76 356
702 DP: Measuring, Calibrating, or Testing (Data Processing) 55 78 71 66 86 356
296 Land Vehicles: Bodies and Tops 38 52 63 77 125 355
228 Metal Fusion Bonding 47 38 62 95 109 351
440 Marine Propulsion 32 54 73 99 86 344
708 Arithmetic Processing and Calculating (Electrical Computers) 70 74 91 48 54 337
112 Sewing 52 81 84 70 45 332
463 Amusement Devices: Games 35 54 58 65 118 330
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 47 71 57 78 62 315
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 57 48 68 70 70 313
331 Oscillators 36 63 66 68 75 308
307 Electrical Transmission or Interconnection Systems 54 67 72 63 51 307
378 X-Ray or Gamma Ray Systems or Devices 58 52 43 60 92 305
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 40 61 59 53 89 302
152 Resilient Tires and Wheels 49 55 51 70 76 301
418 Rotary Expansible Chamber Devices 36 55 38 91 80 300
216 Etching a Substrate: Processes 61 66 75 49 41 292
323 Electricity: Power Supply or Regulation Systems 47 53 57 59 70 286
351 Optics: Eye Examining, Vision Testing and Correcting 52 68 59 56 50 285
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 63 61 68 45 45 282
188 Brakes 24 37 62 55 98 276
136 Batteries: Thermoelectric and Photoelectric 27 35 46 71 95 274
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 39 70 59 56 50 274
206 Special Receptacle or Package 28 65 71 54 49 267
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 26 54 92 57 38 267
475 Planetary Gear Transmission Systems or Components 55 50 74 49 38 266
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 32 50 48 71 63 264
414 Material or Article Handling 57 53 49 58 38 255
052 Static Structures (e.g., Buildings) 42 56 45 49 61 253
353 Optics: Image Projectors 38 44 38 57 65 242
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 29 45 60 48 57 239
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 47 50 45 37 59 238
474 Endless Belt Power Transmission Systems or Components 39 38 45 73 42 237
297 Chairs and Seats 47 40 43 49 53 232
277 Seal for a Joint or Juncture 49 27 47 43 63 229
717 DP: Software Development, Installation, and Management (Data Processing) 20 58 43 47 61 229
065 Glass Manufacturing 38 51 52 44 41 226
164 Metal Founding 41 71 54 27 32 225
606 Surgery (instruments) 39 33 38 64 49 223
248 Supports (e.g., for holding articles, etc.) 24 51 45 53 49 222
198 Conveyors: Power-Driven 28 26 50 47 64 215
015 Brushing, Scrubbing, and General Cleaning 32 36 36 59 49 212
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 42 38 36 34 51 201
445 Electric Lamp or Space Discharge Component or Device Manufacturing 28 34 40 57 41 200
239 Fluid Sprinkling, Spraying, and Diffusing 24 41 59 50 25 199
380 Cryptography 27 42 32 54 44 199
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 30 39 41 38 48 196
083 Cutting 22 47 54 43 27 193
024 Buckles, Buttons, Clasps, Etc. 51 30 39 28 43 191
368 Horology: Time Measuring Systems or Devices 22 33 41 38 56 190
504 Plant Protecting and Regulating Compositions 40 35 32 48 33 188
415 Rotary Kinetic Fluid Motors or Pumps 20 26 33 52 56 187
436 Chemistry: Analytical and Immunological Testing 29 50 53 26 27 185
336 Inductor Devices 14 28 44 52 46 184
267 Spring Devices 32 29 41 34 47 183
338 Electrical Resistors 25 33 43 43 39 183
053 Package Making 29 50 24 37 41 181
725 Interactive Video Distribution Systems 28 48 41 24 38 179
706 DP: Artificial Intelligence (Data Processing) 52 52 29 17 26 176
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 32 31 34 44 30 171
092 Expansible Chamber Devices 26 36 38 28 42 170
401 Coating Implements with Material Supply 15 32 52 30 40 169
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 25 35 27 18 57 162
138 Pipes and Tubular Conduits 19 24 37 50 31 161
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 31 25 38 33 33 160
222 Dispensing (apparatus and process) 21 29 46 30 30 156
285 Pipe Joints or Couplings 20 31 33 36 36 156
251 Valves and Valve Actuation 13 29 38 36 35 151
505 Superconductor Technology: Apparatus, Material, Process 39 31 40 19 16 145
034 Drying and Gas or Vapor Contact with Solids 23 25 27 35 27 137
403 Joints and Connections 30 30 25 22 25 132
241 Solid Material Comminution or Disintegration 29 41 24 19 18 131
420 Alloys or Metallic Compositions 21 32 31 24 23 131
220 Receptacles 14 23 28 33 28 126
433 Dentistry 16 23 36 17 34 126
033 Geometrical Instruments 12 23 22 33 32 122
091 Motors: Expansible Chamber Type 18 33 25 21 22 119
030 Cutlery 30 14 21 28 24 117
049 Movable or Removable Closures 11 34 19 32 21 117
099 Foods and Beverages: Apparatus 27 15 32 22 14 110
432 Heating 23 18 26 21 20 108
409 Gear Cutting, Milling, or Planing 14 24 27 20 22 107
434 Education and Demonstration 7 23 32 24 20 106
066 Textiles: Knitting 14 19 25 27 20 105
416 Fluid Reaction Surfaces (i.e., Impellers) 14 14 18 34 23 103
181 Acoustics 13 30 24 18 16 101
290 Prime-Mover Dynamo Plants 11 22 21 24 22 100
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 15 23 22 19 21 100
162 Paper Making and Fiber Liberation 15 20 15 13 35 98
376 Induced Nuclear Reactions: Processes, Systems, and Elements 17 19 16 20 25 97
002 Apparel 19 7 24 19 27 96
057 Textiles: Spinning, Twisting, and Twining 16 32 17 12 19 96
209 Classifying, Separating, and Assorting Solids 20 13 26 17 18 94
374 Thermal Measuring and Testing 18 18 15 23 20 94
292 Closure Fasteners 11 26 22 22 12 93
585 Chemistry of Hydrocarbon Compounds 11 22 19 20 21 93
004 Baths, Closets, Sinks, and Spittoons 9 16 31 16 19 91
322 Electricity: Single Generator Systems 22 32 13 13 11 91
366 Agitating (e.g., of articles and materials) 17 20 19 10 25 91
270 Sheet-Material Associating 18 20 17 15 20 90
337 Electricity: Electrothermally or Thermally Actuated Switches 21 25 20 12 12 90
454 Ventilation 16 11 27 16 19 89
055 Gas Separation 18 23 15 19 13 88
431 Combustion 7 16 24 31 10 88
476 Friction Gear Transmission Systems or Components 10 10 17 27 24 88
096 Gas Separation: Apparatus 14 17 22 21 13 87
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 18 14 20 24 10 86
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 12 13 18 14 29 86
221 Article Dispensing 4 15 16 25 26 86
405 Hydraulic and Earth Engineering 11 18 15 18 24 86
043 Fishing, Trapping, and Vermin Destroying 7 12 23 22 18 82
110 Furnaces 15 14 17 14 22 82
114 Ships 13 7 16 28 15 79
273 Amusement Devices: Games 23 21 9 13 13 79
095 Gas Separation: Processes 6 18 17 14 22 77
419 Powder Metallurgy Processes 17 9 22 15 14 77
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 5 13 13 16 27 74
177 Weighing Scales 7 30 17 11 8 73
237 Heating Systems 7 18 18 21 9 73
125 Stone Working 7 13 17 21 14 72
016 Miscellaneous Hardware 12 9 11 27 12 71
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 8 9 14 17 23 71
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 5 18 14 12 21 70
047 Plant Husbandry 13 13 19 10 14 69
227 Elongated-Member-Driving Apparatus 16 19 13 11 10 69
261 Gas and Liquid Contact Apparatus 14 12 16 12 13 67
005 Beds 16 15 13 11 9 64
070 Locks 18 16 12 9 8 63
236 Automatic Temperature and Humidity Regulation 8 14 14 13 14 63
036 Boots, Shoes, and Leggings 8 23 7 10 14 62
132 Toilet 8 11 18 13 12 62
081 Tools 11 8 13 17 12 61
601 Surgery: Kinesitherapy 8 12 11 9 21 61
194 Check-Actuated Control Mechanisms 5 9 10 17 17 58
329 Demodulators 11 10 11 15 11 58
122 Liquid Heaters and Vaporizers 2 11 22 14 8 57
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 11 12 12 13 9 57
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 11 22 7 9 7 56
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 11 13 10 12 10 56
408 Cutting by Use of Rotating Axially Moving Tool 6 10 21 4 15 56
178 Telegraphy 21 13 10 2 5 51
226 Advancing Material of Indeterminate Length 6 14 12 7 12 51
266 Metallurgical Apparatus 13 8 8 12 10 51
446 Amusement Devices: Toys 5 14 16 6 10 51
215 Bottles and Jars 5 14 17 6 8 50
392 Electric Resistance Heating Devices 10 6 11 10 13 50
051 Abrasive Tool Making Process, Material, or Composition 12 7 8 6 16 49
208 Mineral Oils: Processes and Products 6 6 14 7 16 49
332 Modulators 6 12 12 9 10 49
037 Excavating 6 15 6 10 11 48
119 Animal Husbandry 7 17 7 11 6 48
139 Textiles: Weaving 8 12 4 9 15 48
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 5 6 15 11 11 48
100 Presses 11 13 9 3 9 45
126 Stoves and Furnaces 4 7 13 15 6 45
131 Tobacco 6 15 7 11 6 45
483 Tool Changing 7 11 11 9 6 44
588 Hazardous or Toxic Waste Destruction or Containment 6 11 9 9 9 44
173 Tool Driving or Impacting 5 9 7 10 12 43
224 Package and Article Carriers 9 10 9 2 13 43
492 Roll or Roller 5 11 7 7 13 43
082 Turning (e.g., for metal working) 4 12 8 9 9 42
184 Lubrication 6 9 9 9 9 42
269 Work Holders 4 10 11 7 10 42
244 Aeronautics 3 3 10 9 16 41
301 Land Vehicles: Wheels and Axles 2 3 7 13 16 41
294 Handling: Hand and Hoist-Line Implements 6 4 8 10 12 40
229 Envelopes, Wrappers, and Paperboard Boxes 9 8 6 6 10 39
407 Cutters, for Shaping 3 8 9 10 9 39
607 Surgery: Light, Thermal, and Electrical Application 6 7 9 7 10 39
211 Supports: Racks 7 6 6 10 8 37
367 Communications, Electrical: Acoustic Wave Systems and Devices 5 12 9 2 9 37
312 Supports: Cabinet Structure 5 5 9 7 10 36
453 Coin Handling 4 4 11 8 8 35
602 Surgery: Splint, Brace, or Bandage 3 8 5 7 12 35
068 Textiles: Fluid Treating Apparatus 3 12 7 6 6 34
104 Railways 12 4 4 8 6 34
040 Card, Picture, or Sign Exhibiting 10 8 3 8 3 32
383 Flexible Bags 5 4 6 8 8 31
404 Road Structure, Process, or Apparatus 2 6 9 6 8 31
056 Harvesters 5 7 6 11 1 30
203 Distillation: Processes, Separatory 6 9 7 2 6 30
254 Implements or Apparatus for Applying Pushing or Pulling Force 6 7 6 6 5 30
373 Industrial Electric Heating Furnaces 5 3 12 7 2 29
482 Exercise Devices 4 8 4 8 5 29
346 Recorders 7 7 5 2 7 28
044 Fuel and Related Compositions 3 4 8 10 2 27
071 Chemistry: Fertilizers 3 8 3 4 9 27
172 Earth Working 4 5 8 7 3 27
048 Gas: Heating and Illuminating 6 8 5 2 5 26
144 Woodworking 5 3 7 4 7 26
352 Optics: Motion Pictures 8 3 5 8 2 26
279 Chucks or Sockets 4 3 8 6 4 25
305 Wheel Substitutes for Land Vehicles 3 3 6 6 7 25
108 Horizontally Supported Planar Surfaces 5 4 6 3 6 24
212 Traversing Hoists 2 9 3 4 6 24
160 Flexible or Portable Closure, Partition, or Panel 2 4 4 7 6 23
293 Vehicle Fenders 3 6 4 4 6 23
001 ** Classification Undetermined ** 1 7 6 0 8 22
140 Wireworking 8 5 6 2 1 22
225 Severing by Tearing or Breaking 4 2 3 5 8 22
406 Conveyors: Fluid Current 1 1 1 8 10 21
059 Chain, Staple, and Horseshoe Making 2 6 6 2 4 20
063 Jewelry 4 4 5 3 3 19
249 Static Molds 4 2 3 2 8 19
028 Textiles: Manufacturing 5 4 2 5 2 18
388 Electricity: Motor Control Systems 5 3 2 7 1 18
412 Bookbinding: Process and Apparatus 4 2 3 7 2 18
105 Railway Rolling Stock 6 2 1 3 5 17
149 Explosive and Thermic Compositions or Charges 2 7 2 2 4 17
283 Printed Matter 1 3 8 2 2 16
169 Fire Extinguishers 2 4 3 6 0 15
223 Apparel Apparatus 0 3 4 4 4 15
452 Butchering 1 4 2 6 2 15
299 Mining or In Situ Disintegration of Hard Material 3 1 1 4 5 14
472 Amusement Devices 2 2 3 3 4 14
038 Textiles: Ironing or Smoothing 4 2 0 6 1 13
116 Signals and Indicators 3 2 2 4 2 13
135 Tent, Canopy, Umbrella, or Cane 1 3 0 2 7 13
182 Fire Escape, Ladder, or Scaffold 1 5 2 4 1 13
102 Ammunition and Explosives 3 1 0 2 6 12
124 Mechanical Guns and Projectors 5 1 2 4 0 12
494 Imperforate Bowl: Centrifugal Separators 4 2 2 3 1 12
512 Perfume Compositions 1 4 2 2 3 12
191 Electricity: Transmission To Vehicles 1 2 4 3 1 11
175 Boring or Penetrating the Earth 1 2 4 1 2 10
111 Planting 1 3 4 1 0 9
127 Sugar, Starch, and Carbohydrates 0 0 4 2 3 9
281 Books, Strips, and Leaves 1 3 3 1 1 9
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 2 4 1 1 1 9
076 Metal Tools and Implements, Making 2 0 2 2 2 8
246 Railway Switches and Signals 1 3 2 1 1 8
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 5 2 1 0 0 8
014 Bridges 1 3 2 0 1 7
023 Chemistry: Physical Processes 1 3 2 1 0 7
026 Textiles: Cloth Finishing 2 4 1 0 0 7
202 Distillation: Apparatus 1 3 3 0 0 7
042 Firearms 1 2 0 1 2 6
450 Foundation Garments 0 1 2 1 2 6
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 1 3 2 6
012 Boot and Shoe Making 0 1 2 2 0 5
186 Merchandising 2 1 1 1 0 5
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 4 0 1 5
201 Distillation: Processes, Thermolytic 3 0 0 2 0 5
256 Fences 1 2 0 1 1 5
410 Freight Accommodation On Freight Carrier 1 1 1 2 0 5
087 Textiles: Braiding, Netting, and Lace Making 0 1 2 1 0 4
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 2 0 2 0 0 4
190 Trunks and Hand-Carried Luggage 0 1 2 1 0 4
334 Tuners 0 2 1 0 1 4
019 Textiles: Fiber Preparation 0 1 0 1 1 3
089 Ordnance 0 1 2 0 0 3
007 Compound Hand Tools 1 0 1 0 0 2
027 Undertaking 0 0 2 0 0 2
157 Wheelwright Machines 1 1 0 0 0 2
159 Concentrating Evaporators 0 1 1 0 0 2
196 Mineral Oils: Apparatus 1 1 0 0 0 2
238 Railways: Surface Track 0 0 1 0 1 2
260 Chemistry of Carbon Compounds 0 0 0 1 1 2
295 Railway Wheels and Axles 0 0 1 1 0 2
413 Sheet Metal Container Making 0 0 2 0 0 2
441 Buoys, Rafts, and Aquatic Devices 0 0 0 2 0 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 1 0 0 0 1 2
109 Safes, Bank Protection, or a Related Device 0 1 0 0 0 1
168 Farriery 0 0 0 1 0 1
185 Motors: Spring, Weight, or Animal Powered 1 0 0 0 0 1
213 Railway Draft Appliances 0 0 0 0 1 1
232 Deposit and Collection Receptacles 0 0 0 1 0 1
449 Bee Culture (propagating, raising, caring for bees) 0 0 1 0 0 1
ALL ALL CLASSES 23179 30840 31104 31296 33223 149642



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Questions regarding these reports should be directed to:

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tel: (703) 306-2600
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email: oeip@uspto.gov

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Last Modified: April 9, 2002