2. Classes

Class Grant Rates

We have statistics for each patent class. Use the links below to see statistics about each one.

Class Description 3YGR Number
002 Apparel 0% 0
004 Baths, closets, sinks, and spittoons 0% 0
005 Beds 0% 0
007 Compound tools 0% 0
008 Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers 0% 0
012 Boot and shoe making 0% 0
014 Bridges 0% 0
015 Brushing, scrubbing, and general cleaning 0% 0
016 Miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.) 0% 0
019 Textiles: fiber preparation 0% 0
023 Chemistry: physical processes 0% 0
024 Buckles, buttons, clasps, etc. 0% 0
026 Textiles: cloth finishing 0% 0
027 Undertaking 0% 0
028 Textiles: manufacturing 0% 0
029 Metal working 0% 0
030 Cutlery 0% 0
033 Geometrical instruments 0% 0
034 Drying and gas or vapor contact with solids 0% 0
036 Boots, shoes, and leggings 0% 0
037 Excavating 0% 0
038 Textiles: ironing or smoothing 0% 0
040 Card, picture, or sign exhibiting 0% 0
042 Firearms 0% 0
043 Fishing, trapping, and vermin destroying 0% 0
044 Fuel and related compositions 0% 0
047 Plant husbandry 0% 0
048 Gas: heating and illuminating 0% 0
049 Movable or removable closures 0% 0
051 Abrasive tool making process, material, or composition 0% 0
052 Static structures (e.g., buildings) 0% 0
053 Package making 0% 0
054 Harness for working animal 0% 0
055 Gas separation 0% 0
056 Harvesters 0% 0
057 Textiles: spinning, twisting, and twining 0% 0
059 Chain, staple, and horseshoe making 0% 0
060 Power plants 0% 0
062 Refrigeration 0% 0
063 Jewelry 0% 0
065 Glass manufacturing 0% 0
066 Textiles: knitting 0% 0
068 Textiles: fluid treating apparatus 0% 0
069 Leather manufactures 0% 0
070 Locks 0% 0
071 Chemistry: fertilizers 0% 0
072 Metal deforming 0% 0
073 Measuring and testing 0% 0
074 Machine element or mechanism 0% 0
075 Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures 0% 0
076 Metal tools and implements, making 0% 0
079 Button making 0% 0
081 Tools 0% 0
082 Turning 0% 0
083 Cutting 0% 0
084 Music 0% 0
086 Ammunition and explosive-charge making 0% 0
087 Textiles: braiding, netting, and lace making 0% 0
089 Ordnance 0% 0
091 Motors: expansible chamber type 0% 0
092 Expansible chamber devices 0% 0
095 Gas separation: processes 0% 0
096 Gas separation: apparatus 0% 0
099 Foods and beverages: apparatus 0% 0
100 Presses 77% 602
101 Printing 69% 1555
102 Ammunition and explosives 80% 1459
104 Railways 83% 576
105 Railway rolling stock 86% 568
106 Compositions: coating or plastic 68% 2503
108 Horizontally supported planar surfaces 79% 1770
109 Safes, bank protection, or a related device 68% 98
110 Furnaces 70% 254
111 Planting 80% 256
112 Sewing 85% 368
114 Ships 84% 2385
116 Signals and indicators 69% 428
117 Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor 73% 1218
118 Coating apparatus 62% 4221
119 Animal husbandry 61% 4354
122 Liquid heaters and vaporizers 77% 661
123 Internal-combustion engines 83% 8597
124 Mechanical guns and projectors 82% 757
125 Stone working 47% 95
126 Stoves and furnaces 71% 1718
127 Sugar, starch, and carbohydrates 72% 161
128 Surgery 64% 6293
131 Tobacco 66% 3881
132 Toilet 42% 1662
134 Cleaning and liquid contact with solids 72% 4630
135 Tent, canopy, umbrella, or cane 77% 1180
136 Batteries: thermoelectric and photoelectric 53% 5069
137 Fluid handling 80% 6102
138 Pipes and tubular conduits 75% 622
139 Textiles: weaving 76% 335
140 Wireworking 82% 175
141 Fluent material handling, with receiver or receiver coacting means 83% 2160
142 Wood turning 100% 2
144 Woodworking 75% 345
147 Coopering 67% 3
148 Metal treatment 64% 3252
149 Explosive and thermic compositions or charges 71% 251
150 Purses, wallets, and protective covers 56% 408
152 Resilient tires and wheels 57% 3415
156 Adhesive bonding and miscellaneous chemical manufacture 71% 8556
157 Wheelwright machines 75% 104
159 Concentrating evaporators 76% 132
160 Flexible or portable closure, partition, or panel 62% 1891
162 Paper making and fiber liberation 75% 963
163 Needle and pin making 100% 1
164 Metal founding 74% 1490
165 Heat exchange 67% 5051
166 Wells 83% 12272
168 Farriery 32% 38
169 Fire extinguishers 67% 1009
171 Unearthing plants or buried objects 83% 29
172 Earth working 81% 976
173 Tool driving or impacting 78% 1310
174 Electricity: conductors and insulators 86% 7005
175 Boring or penetrating the earth 84% 3067
177 Weighing scales 81% 680
178 Telegraphy 63% 19
180 Motor vehicles 86% 5739
181 Acoustics 79% 1507
182 Fire escape, ladder, or scaffold 65% 1021
184 Lubrication 81% 630
185 Motors: spring, weight, or animal powered 65% 40
186 Merchandising 41% 22
187 Elevator, industrial lift truck, or stationary lift for vehicle 75% 1788
188 Brakes 81% 3191
190 Trunks and hand-carried luggage 55% 485
191 Electricity: transmission to vehicles 78% 185
192 192 clutches and power-stop control 86% 1844
193 Conveyors, chutes, skids, guides, and ways 90% 220
194 Check-actuated control mechanisms 52% 140
196 Mineral oils: apparatus 83% 42
198 Conveyors: power-driven 93% 3740
199 Type casting 0% 0
200 Electricity: circuit makers and breakers 85% 1689
201 Distillation: processes, thermolytic 73% 198
202 Distillation: apparatus 75% 392
203 Distillation: processes, separatory 77% 458
204 Chemistry: electrical and wave energy 67% 4769
205 Electrolysis: processes, compositions used therein, and methods of preparing the compositions 65% 3000
206 Special receptacle or package 66% 6309
208 Mineral oils: processes and products 78% 1869
209 Classifying, separating, and assorting solids 81% 1687
210 Liquid purification or separation 68% 9260
211 Supports: racks 76% 2092
212 Traversing hoists 88% 347
213 Railway draft appliances 89% 94
215 Bottles and jars 67% 1674
216 Etching a substrate: processes 85% 1124
217 Wooden receptacles 43% 7
218 High-voltage switches with arc preventing or extinguishing devices 93% 534
219 Electric heating 66% 6608
220 Receptacles 67% 6001
221 Article dispensing 67% 1284
222 Dispensing 79% 3494
223 Apparel apparatus 54% 219
224 Package and article carriers 71% 3956
225 Severing by tearing or breaking 68% 200
226 Advancing material of indeterminate length 88% 117
227 Elongated-member-driving apparatus 82% 2806
228 Metal fusion bonding 73% 1753
229 Envelopes, wrappers, and paperboard boxes 70% 1219
231 Whips and whip apparatus 33% 3
232 Deposit and collection receptacles 78% 307
234 Selective cutting (e.g., punching) 0% 0
235 Registers 85% 8058
236 Automatic temperature and humidity regulation 74% 613
237 Heating systems 58% 180
238 Railways: surface track 78% 185
239 Fluid sprinkling, spraying, and diffusing 67% 3858
241 Solid material comminution or disintegration 63% 856
242 Winding, tensioning, or guiding 84% 1569
244 Aeronautics and astronautics 82% 8838
245 Wire fabrics and structure 70% 10
246 Railway switches and signals 86% 353
248 Supports 78% 7762
249 Static molds 59% 129
250 Radiant energy 88% 14435
251 Valves and valve actuation 80% 2964
252 Compositions 72% 6373
254 Implements or apparatus for applying pushing or pulling force 75% 855
256 Fences 70% 659
257 Active solid-state devices (e.g., transistors, solid-state diodes) 88% 74277
258 Railway mail delivery 0% 0
260 Chemistry of carbon compounds 25% 4
261 Gas and liquid contact apparatus 76% 1139
264 Plastic and nonmetallic article shaping or treating: processes 68% 11800
266 Metallurgical apparatus 74% 321
267 Spring devices 79% 1059
269 Work holders 75% 1110
270 Sheet-material associating 91% 531
271 Sheet feeding or delivering 86% 2220
273 Amusement devices: games 46% 972
276 Typesetting 0% 0
277 Seal for a joint or juncture 79% 2345
278 Land vehicles: animal draft appliances 0% 0
279 Chucks or sockets 85% 167
280 Land vehicles 86% 8667
281 Books, strips, and leaves 64% 92
283 Printed matter 68% 497
285 Pipe joints or couplings 76% 2964
289 Knots and knot tying 89% 36
290 Prime-mover dynamo plants 72% 2459
291 Track sanders 93% 15
292 Closure fasteners 74% 2262
293 Vehicle fenders 87% 295
294 Handling: hand and hoist-line implements 85% 1128
295 Railway wheels and axles 80% 20
296 Land vehicles: bodies and tops 89% 4489
297 Chairs and seats 85% 5839
298 Land vehicles: dumping 73% 33
299 Mining or in situ disintegration of hard material 85% 430
300 Brush, broom, and mop making 66% 35
301 Land vehicles: wheels and axles 77% 722
303 Fluid-pressure and analogous brake systems 82% 1342
305 Wheel substitutes for land vehicles 83% 247
307 Electrical transmission or interconnection systems 84% 10024
310 Electrical generator or motor structure 80% 10013
312 Supports: cabinet structure 83% 2888
313 Electric lamp and discharge devices 94% 924
314 Electric lamp and discharge devices: consumable electrodes 0% 0
315 Electric lamp and discharge devices: systems 88% 6992
318 Electricity: motive power systems 89% 5697
320 Electricity: battery or capacitor charging or discharging 81% 8611
322 Electricity: single generator systems 81% 213
323 Electricity: power supply or regulation systems 91% 3737
324 Electricity: measuring and testing 88% 17240
326 Electronic digital logic circuitry 95% 1185
327 Miscellaneous active electrical nonlinear devices, circuits, and systems 93% 6981
329 Demodulators 100% 31
330 Amplifiers 94% 2563
331 Oscillators 93% 1766
332 Modulators 98% 62
333 Wave transmission lines and networks 90% 3184
334 Tuners 86% 7
335 Electricity: magnetically operated switches, magnets, and electromagnets 84% 1259
336 Inductor devices 81% 2957
337 Electricity: electrothermally or thermally actuated switches 81% 531
338 Electrical resistors 94% 422
340 Communications: electrical 83% 22568
341 Coded data generation or conversion 95% 3007
342 Communications: directive radio wave systems and devices (e.g., radar, radio navigation) 86% 6194
343 Communications: radio wave antennas 88% 7858
345 Computer graphics processing and selective visual display systems 84% 61649
346 Recorders 80% 15
347 Incremental printing of symbolic information 89% 12011
348 Television 83% 35842
349 Liquid crystal cells, elements and systems 79% 7317
351 Optics: eye examining, vision testing and correcting 79% 3496
352 Optics: motion pictures 63% 19
353 Optics: image projectors 85% 2514
355 Photocopying 90% 2295
356 Optics: measuring and testing 87% 12339
358 Facsimile and static presentation processing 86% 10154
359 Optical: systems and elements 83% 17493
360 Dynamic magnetic information storage or retrieval 93% 1754
361 Electricity: electrical systems and devices 88% 20753
362 Illumination 83% 14965
363 Electric power conversion systems 91% 4604
365 Static information storage and retrieval 95% 12191
366 Agitating 74% 1956
367 Communications, electrical: acoustic wave systems and devices 75% 2251
368 Horology: time measuring systems or devices 82% 1321
369 Dynamic information storage or retrieval 90% 449
370 Multiplex communications 86% 80544
372 Coherent light generators 82% 2628
373 Industrial electric heating furnaces 78% 127
374 Thermal measuring and testing 85% 1391
375 Pulse or digital communications 89% 24907
376 Induced nuclear reactions: processes, systems, and elements 68% 1166
377 Electrical pulse counters, pulse dividers, or shift registers: circuits and systems 86% 481
378 X-ray or gamma ray systems or devices 89% 5071
379 Telephonic communications 88% 3644
380 Cryptography 87% 3029
381 Electrical audio signal processing systems and devices 87% 15353
382 Image analysis 88% 39898
383 Flexible bags 54% 615
384 Bearings 87% 1890
385 Optical waveguides 87% 9884
386 Motion video signal processing for recording or reproducing 81% 3071
388 Electricity: motor control systems 89% 36
392 Electric resistance heating devices 68% 1065
396 Photography 85% 1600
398 Optical communications 89% 6291
399 Electrophotography 91% 9371
400 Typewriting machines 84% 372
401 Coating implements with material supply 77% 1355
402 Binder device releasably engaging aperture or notch of sheet 72% 72
403 Joints and connections 76% 2142
404 Road structure, process, or apparatus 81% 1456
405 Hydraulic and earth engineering 79% 2624
406 Conveyors: fluid current 84% 373
407 Cutters, for shaping 82% 603
408 Cutting by use of rotating axially moving tool 75% 561
409 Gear cutting, milling, or planing 69% 482
410 Freight accommodation on freight carrier 80% 144
411 Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener 64% 722
412 Bookbinding: process and apparatus 80% 51
413 Sheet metal container making 69% 26
414 Material or article handling 82% 3801
415 Rotary kinetic fluid motors or pumps 83% 6484
416 Fluid reaction surfaces (i.e., impellers) 80% 4581
417 Pumps 70% 4548
418 Rotary expansible chamber devices 79% 1057
419 Powder metallurgy processes 53% 1505
420 Alloys or metallic compositions 59% 1604
422 Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing 72% 9609
423 Chemistry of inorganic compounds 74% 3911
424 Drug, bio-affecting and body treating compositions 54% 58419
425 Plastic article or earthenware shaping or treating: apparatus 68% 3500
426 Food or edible material: processes, compositions, and products 31% 7953
427 Coating processes 62% 7678
428 Stock material or miscellaneous articles 63% 28628
429 Chemistry: electrical current producing apparatus, product, and process 76% 24214
430 Radiation imagery chemistry: process, composition, or product thereof 70% 2981
431 Combustion 71% 901
432 Heating 73% 376
433 Dentistry 60% 3379
434 Education and demonstration 57% 5611
435 Chemistry: molecular biology and microbiology 57% 31155
436 Chemistry: analytical and immunological testing 68% 4799
438 Semiconductor device manufacturing: process 88% 16634
439 Electrical connectors 90% 8179
440 Marine propulsion 87% 1198
441 Buoys, rafts, and aquatic devices 78% 751
442 Fabric (woven, knitted, or nonwoven textile or cloth, etc.) 47% 2533
445 Electric lamp or space discharge component or device manufacturing 95% 128
446 Amusement devices: toys 57% 1371
449 Bee culture 55% 88
450 Foundation garments 69% 561
451 Abrading 62% 1299
452 Butchering 93% 511
453 Coin handling 67% 57
454 Ventilation 72% 2135
455 Telecommunications 86% 31397
460 Crop threshing or separating 91% 375
462 Books, strips, and leaves for manifolding 100% 3
463 Amusement devices: games 80% 11657
464 Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts 78% 809
470 Threaded, headed fastener, or washer making: process and apparatus 78% 27
472 Amusement devices 62% 113
473 Games using tangible projectile 71% 5092
474 Endless belt power transmission systems or components 85% 1153
475 Planetary gear transmission systems or components 86% 2651
476 Friction gear transmission systems or components 64% 36
477 Interrelated power delivery controls, including engine control 92% 933
482 Exercise devices 73% 4421
483 Tool changing 78% 217
492 Roll or roller 89% 85
493 Manufacturing container or tube from paper; or other manufacturing from a sheet or web 68% 735
494 Imperforate bowl: centrifugal separators 80% 412
501 Compositions: ceramic 83% 1006
502 Catalyst, solid sorbent, or support therefor: product or process of making 74% 3082
503 Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor 75% 84
504 Plant protecting and regulating compositions 47% 1789
505 Superconductor technology: apparatus, material, process 75% 231
506 Combinatorial chemistry technology: method, library, apparatus 58% 2469
507 Earth boring, well treating, and oil field chemistry 75% 1707
508 Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions 63% 2035
510 Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions 65% 2285
512 Perfume compositions 73% 263
514 Drug, bio-affecting and body treating compositions 60% 46431
516 Colloid systems and wetting agents; subcombinations thereof; processes of 60% 149
518 Chemistry: fischer-tropsch processes; or purification or recovery of products thereof 82% 349
520 Synthetic resins or natural rubbers -- part of the class 520 series 88% 8
521 Synthetic resins or natural rubbers -- part of the class 520 series 63% 1744
522 Synthetic resins or natural rubbers -- part of the class 520 series 81% 1176
523 Synthetic resins or natural rubbers -- part of the class 520 series 72% 3074
524 Synthetic resins or natural rubbers -- part of the class 520 series 67% 6541
525 Synthetic resins or natural rubbers -- part of the class 520 series 74% 3713
526 Synthetic resins or natural rubbers -- part of the class 520 series 85% 1902
527 Synthetic resins or natural rubbers -- part of the class 520 series 81% 75
528 Synthetic resins or natural rubbers -- part of the class 520 series 72% 3309
530 Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof 58% 2922
532 Organic compounds -- part of the class 532-570 series 100% 3
534 Organic compounds -- part of the class 532-570 series 75% 101
536 Organic compounds -- part of the class 532-570 series 70% 2283
540 Organic compounds -- part of the class 532-570 series 77% 595
544 Organic compounds -- part of the class 532-570 series 78% 2441
546 Organic compounds -- part of the class 532-570 series 78% 1879
548 Organic compounds -- part of the class 532-570 series 78% 1901
549 Organic compounds -- part of the class 532-570 series 80% 1217
552 Organic compounds -- part of the class 532-570 series 64% 50
554 Organic compounds -- part of the class 532-570 series 87% 475
556 Organic compounds -- part of the class 532-570 series 79% 638
558 Organic compounds -- part of the class 532-570 series 79% 430
560 Organic compounds -- part of the class 532-570 series 81% 777
562 Organic compounds -- part of the class 532-570 series 82% 793
564 Organic compounds -- part of the class 532-570 series 76% 717
568 Organic compounds -- part of the class 532-570 series 86% 1100
570 Organic compounds -- part of the class 532-570 series 86% 515
585 Chemistry of hydrocarbon compounds 78% 2178
588 Hazardous or toxic waste destruction or containment 66% 119
600 Surgery 65% 31853
601 Surgery: kinesitherapy 58% 2565
602 Surgery: splint, brace, or bandage 57% 1783
604 Surgery 71% 17717
606 Surgery 77% 24072
607 Surgery: light, thermal, and electrical application 74% 8070
623 Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor 77% 11261
700 Data processing: generic control systems or specific applications 82% 24361
701 Data processing: vehicles, navigation, and relative location 80% 46597
702 Data processing: measuring, calibrating, or testing 73% 14274
703 Data processing: structural design, modeling, simulation, and emulation 69% 5936
704 Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression 84% 15998
705 Data processing: financial, business practice, management, or cost/price determination 48% 62702
706 Data processing: artificial intelligence 73% 14110
707 Data processing: database and file management or data structures 79% 34358
708 Electrical computers: arithmetic processing and calculating 84% 1540
709 Electrical computers and digital processing systems: multicomputer data transferring 83% 40645
710 Electrical computers and digital data processing systems: input/output 87% 6967
711 Electrical computers and digital processing systems: memory 87% 19575
712 Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) 80% 3037
713 Electrical computers and digital processing systems: support 86% 21378
714 Error detection/correction and fault detection/recovery 92% 12700
715 Data processing: presentation processing of document, operator interface processing, and screen saver display processing 71% 20831
716 Computer-aided design and analysis of circuits and semiconductor masks 93% 3327
717 Data processing: software development, installation, and management 85% 10788
718 Electrical computers and digital processing systems: virtual machine task or process management or task management/control 84% 8179
719 Electrical computers and digital processing systems: interprogram communication or interprocess communication (ipc) 87% 2543
720 Dynamic optical information storage or retrieval 92% 50
725 Interactive video distribution systems 77% 11212
726 Information security 85% 35719
800 Multicellular living organisms and unmodified parts thereof and related processes 78% 8733
850 Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] 90% 392
901 Robots 72% 29
902 Electronic funds transfer 0% 0
903 Hybrid electric vehicles (hevs) 0% 0
930 Peptide or protein sequence 50% 6
968 Horology 0% 0
976 Nuclear technology 100% 1
977 Nanotechnology 67% 6
984 Musical instruments 0% 0
987 Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system 0% 0
D01 Edible products 0% 0
D02 Apparel and haberdashery 0% 0
D03 Travel goods and personal belongings 0% 0
D04 Brushware 0% 0
D05 Textile or paper yard goods; sheet material 0% 0
D06 Furnishings 0% 0
D07 Equipment for preparing or serving food or drink not elsewhere specified 0% 0
D08 Tools and hardware 0% 0
D09 Packages and containers for goods 0% 0
D10 Measuring, testing, or signalling instruments 96% 3276
D11 Jewelry, symbolic insignia, and ornaments 96% 3354
D12 Transportation 97% 10921
D13 Equipment for production, distribution, or transformation of energy 97% 7748
D14 Recording, communication, or information retrieval equipment 97% 22875
D15 Machines not elsewhere specified 98% 5507
D16 Photography and optical equipment 98% 3706
D17 Musical instruments 94% 502
D18 Printing and office machinery 99% 914
D19 Office supplies; artists and teachers materials 95% 1039
D20 Sales and advertising equipment 90% 662
D21 Games, toys, and sports goods 96% 8808
D22 Arms, pyrotechnics, hunting and fishing equipment 98% 1595
D23 Environmental heating and cooling; fluid handling and sanitary equipment 98% 8206
D24 Medical and laboratory equipment 96% 9286
D25 Building units and construction elements 94% 2770
D26 Lighting 97% 5305
D27 Tobacco and smokers' supplies 97% 1566
D28 Cosmetic products and toilet articles 97% 3186
D29 Equipment for safety, protection, and rescue 96% 811
D30 Animal husbandry 97% 2594
D32 Washing, cleaning, or drying machine 98% 2792
D34 Material or article handling equipment 96% 822
D99 Miscellaneous 96% 417
PLT Plants 98% 5119

Disclaimer: We do not provide any guarantees as to the accuracy of the statistics presented above and under
no circumstances will we be liable for any outcome resulting from your reliance on the above statistics.