| Class | Description | Top Inventors | Number of Patent applications |
|---|
| 002 | Apparel | Mary I. Grilliot | 4148 |
| 004 | Baths, closets, sinks, and spittoons | Joseph R. Cook | 2162 |
| 005 | Beds | David W. Hornbach | 2670 |
| 007 | Compound tools | Spencer Frazer | 205 |
| 008 | Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers | Bon Kwon Koo | 1237 |
| 012 | Boot and shoe making | Susan L. Sokolowski | 96 |
| 014 | Bridges | David Johnson | 210 |
| 015 | Brushing, scrubbing, and general cleaning | Wayne Ernest Conrad | 3963 |
| 016 | Miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.) | Jin-Xin Wang | 1650 |
| 019 | Textiles: fiber preparation | Thomas Schmitz | 84 |
| 023 | Chemistry: physical processes | Terje Fuglerud | 27 |
| 024 | Buckles, buttons, clasps, etc. | Keiichi Keyaki | 2088 |
| 026 | Textiles: cloth finishing | Maria Francesca Marchesi | 25 |
| 027 | Undertaking | Ilija Rojdev | 134 |
| 028 | Textiles: manufacturing | Andreas Plump | 144 |
| 029 | Metal working | Akito Akimoto | 7623 |
| 030 | Cutlery | Kevin James Wain | 2171 |
| 033 | Geometrical instruments | Bing-Jun Zhang | 1415 |
| 034 | Drying and gas or vapor contact with solids | Andreas Stolze | 1376 |
| 036 | Boots, shoes, and leggings | Michael A. Aveni | 2250 |
| 037 | Excavating | Robert N. Gamble, Ii | 545 |
| 038 | Textiles: ironing or smoothing | Yong Jiang | 184 |
| 040 | Card, picture, or sign exhibiting | Tiger Qiao | 1765 |
| 042 | Firearms | Michael T. Mayberry | 1289 |
| 043 | Fishing, trapping, and vermin destroying | James H. Cink | 1371 |
| 044 | Fuel and related compositions | Paul O'Connor | 1389 |
| 047 | Plant husbandry | Donald E. Weder | 1341 |
| 048 | Gas: heating and illuminating | Earl T. Robinson | 559 |
| 049 | Movable or removable closures | Mario M. Marocco | 1774 |
| 051 | Abrasive tool making process, material, or composition | Chien-Min Sung | 396 |
| 052 | Static structures (e.g., buildings) | Darko Pervan | 7127 |
| 053 | Package making | Donald E. Weder | 2383 |
| 054 | Harness for working animal | Garrett N. Ford | 127 |
| 055 | Gas separation | Jang-Keun Oh | 1168 |
| 056 | Harvesters | Randy Lohrentz | 1011 |
| 057 | Textiles: spinning, twisting, and twining | Chia-Te Chou | 224 |
| 059 | Chain, staple, and horseshoe making | Shoichiro Komiya | 106 |
| 060 | Power plants | Eugene V. Gonze | 10070 |
| 062 | Refrigeration | Michael F. Taras | 6707 |
| 063 | Jewelry | Roni Rydlewicz | 404 |
| 065 | Glass manufacturing | Andrey V. Filippov | 1174 |
| 066 | Textiles: knitting | Tiberio Lonati | 233 |
| 068 | Textiles: fluid treating apparatus | Ig Geun Kwon | 795 |
| 069 | Leather manufactures | Jens Hedegaard | 17 |
| 070 | Locks | Toshiharu Katagiri | 1525 |
| 071 | Chemistry: fertilizers | John Larry Sanders | 380 |
| 072 | Metal deforming | Sergey Fedorovich Golovashchenko | 2001 |
| 073 | Measuring and testing | Anthony D. Kurtz | 11705 |
| 074 | Machine element or mechanism | Bo Long | 4602 |
| 075 | Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures | Robert Millner | 1064 |
| 076 | Metal tools and implements, making | John H. Stevens | 88 |
| 081 | Tools | Bobby Hu | 1650 |
| 082 | Turning | Takanobu Akiyama | 246 |
| 083 | Cutting | Stephen F. Gass | 2306 |
| 084 | Music | Kenneth R. Lemons | 1875 |
| 086 | Ammunition and explosive-charge making | Ryusuke Kitamura | 84 |
| 087 | Textiles: braiding, netting, and lace making | Richard M. Dow | 51 |
| 089 | Ordnance | David L. Hunn | 1101 |
| 091 | Motors: expansible chamber type | Takashi Mori | 305 |
| 092 | Expansible chamber devices | Rainer Scharp | 566 |
| 095 | Gas separation: processes | Harry W. Deckman | 1736 |
| 096 | Gas separation: apparatus | Toshio Tanaka | 972 |
| 099 | Foods and beverages: apparatus | Jean-Luc Denisart | 1989 |
| 100 | Presses | Christopher J. Lanning | 513 |
| 101 | Printing | Georg Schneider | 1842 |
| 102 | Ammunition and explosives | Jahangir S. Rastegar | 940 |
| 104 | Railways | David W. Crawford | 398 |
| 105 | Railway rolling stock | James W. Forbes | 450 |
| 106 | Compositions: coating or plastic | Brent R. Constantz | 2153 |
| 108 | Horizontally supported planar surfaces | William P. Apps | 859 |
| 109 | Safes, bank protection, or a related device | Peter Villiger | 122 |
| 110 | Furnaces | Toshihiko Yamada | 582 |
| 111 | Planting | Michael E. Friestad | 389 |
| 112 | Sewing | Masashi Tokura | 445 |
| 114 | Ships | Bruce G. Kania | 1457 |
| 116 | Signals and indicators | Dene H. Taylor | 517 |
| 117 | Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor | Hiroshi Kishi | 700 |
| 118 | Coating apparatus | Shao-Kai Pei | 2231 |
| 119 | Animal husbandry | Karel Van Den Berg | 2773 |
| 122 | Liquid heaters and vaporizers | Jan Brückner | 524 |
| 123 | Internal-combustion engines | Ross Dykstra Pursifull | 8331 |
| 124 | Mechanical guns and projectors | Richard L. Bednar | 714 |
| 125 | Stone working | Koji Kitagawa | 214 |
| 126 | Stoves and furnaces | David Deng | 2224 |
| 127 | Sugar, starch, and carbohydrates | Sunalie N. Hillier | 143 |
| 128 | Surgery | Philip Rodney Kwok | 4879 |
| 131 | Tobacco | Michael Francis Dube | 910 |
| 132 | Toilet | Nghi Van Nguyen | 1781 |
| 134 | Cleaning and liquid contact with solids | Helmut Jerg | 4050 |
| 135 | Tent, canopy, umbrella, or cane | Oliver Joen-An Ma | 906 |
| 136 | Batteries: thermoelectric and photoelectric | Devendra K. Sadana | 7673 |
| 137 | Fluid handling | Nobukazu Ikeda | 5756 |
| 138 | Pipes and tubular conduits | Larry W. Kiest, Jr. | 1313 |
| 139 | Textiles: weaving | Francisco Speich | 219 |
| 140 | Wireworking | Takahiro Nagaoka | 117 |
| 141 | Fluent material handling, with receiver or receiver coacting means | Ludwig Clüsserath | 1522 |
| 142 | Wood turning | Stuart Batty | 6 |
| 144 | Woodworking | Tatsuya Suzuki | 436 |
| 147 | Coopering | Breck Waterman | 6 |
| 148 | Metal treatment | Yoshimasa Funakawa | 1928 |
| 149 | Explosive and thermic compositions or charges | Graylon K. Williams | 186 |
| 150 | Purses, wallets, and protective covers | Christian J. Seegmiller | 332 |
| 152 | Resilient tires and wheels | Paul Harry Sandstrom | 2091 |
| 156 | Adhesive bonding and miscellaneous chemical manufacture | Maurizio Marchini | 7382 |
| 157 | Wheelwright machines | Lawrence J. Lawson | 117 |
| 159 | Concentrating evaporators | Bernard F. Duesel, Jr. | 71 |
| 160 | Flexible or portable closure, partition, or panel | Tzong Fu Lin | 1367 |
| 162 | Paper making and fiber liberation | Stephen J. Mccullough | 1526 |
| 163 | Needle and pin making | Tatsuya Okada | 4 |
| 164 | Metal founding | Steven J. Bullied | 985 |
| 165 | Heat exchange | Chun-Chi Chen | 5516 |
| 166 | Wells | Michael H. Johnson | 7407 |
| 168 | Farriery | Alan Dale | 45 |
| 169 | Fire extinguishers | Robert G. Dunster | 714 |
| 171 | Unearthing plants or buried objects | Manfred Brunninger | 19 |
| 172 | Earth working | Michael G. Kovach | 560 |
| 173 | Tool driving or impacting | Heiko Roehm | 1121 |
| 174 | Electricity: conductors and insulators | Shou-Kuo Hsu | 7197 |
| 175 | Boring or penetrating the earth | David R. Hall | 2545 |
| 177 | Weighing scales | Shigeru Endo | 429 |
| 178 | Telegraphy | Kia Silverbrook | 379 |
| 180 | Motor vehicles | Hiroshi Gomi | 3652 |
| 181 | Acoustics | Joel D. Brewer | 1013 |
| 182 | Fire escape, ladder, or scaffold | Thomas W. Parker | 996 |
| 184 | Lubrication | Zdravko Paluncic | 365 |
| 185 | Motors: spring, weight, or animal powered | Hikmet Dogan | 35 |
| 186 | Merchandising | Michael S. Notheis | 29 |
| 187 | Elevator, industrial lift truck, or stationary lift for vehicle | Takaharu Ueda | 1001 |
| 188 | Brakes | Johann Baumgartner | 2103 |
| 190 | Trunks and hand-carried luggage | Paul V. Scicluna | 290 |
| 191 | Electricity: transmission to vehicles | Gunnar Asplund | 114 |
| 192 | Clutches and power-stop control | Farzad Samie | 1679 |
| 193 | Conveyors, chutes, skids, guides, and ways | Bryan S. Datema | 93 |
| 194 | Check-actuated control mechanisms | Takao Nireki | 257 |
| 196 | Mineral oils: apparatus | Naoaki Sawai | 37 |
| 198 | Conveyors: power-driven | Matthew L. Fourney | 2180 |
| 200 | Electricity: circuit makers and breakers | Chao Chen | 2499 |
| 201 | Distillation: processes, thermolytic | Ronald Kim | 186 |
| 202 | Distillation: apparatus | Andrew A. Schnellinger | 220 |
| 203 | Distillation: processes, separatory | R. Jay Warner | 390 |
| 204 | Chemistry: electrical and wave energy | Vamsee K. Pamula | 4446 |
| 205 | Electrolysis: processes, compositions used therein, and methods of preparing the compositions | Benjamin J. Feldman | 3178 |
| 206 | Special receptacle or package | Daniel Lee Bizzell | 5790 |
| 208 | Mineral oils: processes and products | Omer Refa Koseoglu | 1696 |
| 209 | Classifying, separating, and assorting solids | Armin Zimmermann | 1024 |
| 210 | Liquid purification or separation | Robert W. Childers | 8353 |
| 211 | Supports: racks | Stephen N. Hardy | 1891 |
| 212 | Traversing hoists | Hans-Dieter Willim | 349 |
| 213 | Railway draft appliances | Jerry R. Smerecky | 79 |
| 215 | Bottles and jars | Takao Iizuka | 1225 |
| 216 | Etching a substrate: processes | Masatoshi Sakurai | 1789 |
| 217 | Wooden receptacles | Donald Obergoenner | 15 |
| 218 | High-voltage switches with arc preventing or extinguishing devices | Kenji Tsuchiya | 336 |
| 219 | Electric heating | Shou-Shan Fan | 5678 |
| 220 | Receptacles | Daniel Lee Bizzell | 5452 |
| 221 | Article dispensing | Aaron L. Bates | 980 |
| 222 | Dispensing | Heiner Ophardt | 3385 |
| 223 | Apparel apparatus | Stanley F. Gouldson | 323 |
| 224 | Package and article carriers | Chris Sautter | 1923 |
| 225 | Severing by tearing or breaking | Chi-Tsai Chang | 189 |
| 226 | Advancing material of indeterminate length | Yutaka Kinoshita | 177 |
| 227 | Elongated-member-driving apparatus | Frederick E. Shelton, Iv | 1598 |
| 228 | Metal fusion bonding | Peter A. Gruber | 1183 |
| 229 | Envelopes, wrappers, and paperboard boxes | Jean-Manuel Gomes | 993 |
| 231 | Whips and whip apparatus | Per Ib Rosendal Andersen | 4 |
| 232 | Deposit and collection receptacles | David J. Bolles | 56 |
| 234 | Selective cutting (e.g., punching) | Peter Benischke | 8 |
| 235 | Registers | Paul Lapstun | 5029 |
| 236 | Automatic temperature and humidity regulation | Cary Leen | 438 |
| 237 | Heating systems | Jason Lars Olsen | 193 |
| 238 | Railways: surface track | Winfried Bösterling | 208 |
| 239 | Fluid sprinkling, spraying, and diffusing | Huasong Zhou | 3611 |
| 241 | Solid material comminution or disintegration | Charles Sued | 1593 |
| 242 | Winding, tensioning, or guiding | Wataru Yanagawa | 1613 |
| 244 | Aeronautics and astronautics | Alain Porte | 4111 |
| 245 | Wire fabrics and structure | Francesco Ferraiolo | 6 |
| 246 | Railway switches and signals | Ajith Kuttannair Kumar | 183 |
| 248 | Supports | Jeffrey D. Carnevali | 5581 |
| 249 | Static molds | Artur Schwoerer | 321 |
| 250 | Radiant energy | Osamu Wakabayashi | 11805 |
| 251 | Valves and valve actuation | Dietmar Kratzer | 2561 |
| 252 | Compositions | Masayuki Saito | 6038 |
| 254 | Implements or apparatus for applying pushing or pulling force | Eric Anderson | 839 |
| 256 | Fences | Dallas James | 528 |
| 257 | Active solid-state devices (e.g., transistors, solid-state diodes) | Shunpei Yamazaki | 50573 |
| 260 | Chemistry of carbon compounds | Johannes Ruwwe | 10 |
| 261 | Gas and liquid contact apparatus | Charles E. Tharp | 513 |
| 264 | Plastic and nonmetallic article shaping or treating: processes | Byung-Jin Choi | 6323 |
| 266 | Metallurgical apparatus | Paul V. Cooper | 409 |
| 267 | Spring devices | Hironori Koyama | 880 |
| 269 | Work holders | Takayuki Kawakami | 899 |
| 270 | Sheet-material associating | Katsuya Sasahara | 440 |
| 271 | Sheet feeding or delivering | Lloyd A. Williams | 2408 |
| 273 | Amusement devices: games | Attila Grauzer | 1782 |
| 277 | Seal for a joint or juncture | Glenn M. Garrison | 1812 |
| 279 | Chucks or sockets | Hans-Dieter Mack | 403 |
| 280 | Land vehicles | Osamu Fukawatase | 6819 |
| 281 | Books, strips, and leaves | David C.t. Jour | 236 |
| 283 | Printed matter | Pierre Degott | 590 |
| 285 | Pipe joints or couplings | Peter C. Williams | 2061 |
| 289 | Knots and knot tying | Cheong Choon Ng | 29 |
| 290 | Prime-mover dynamo plants | Henrik Stiesdal | 3537 |
| 291 | Track sanders | Werner Bartling | 8 |
| 292 | Closure fasteners | Thorsten Bendel | 1093 |
| 293 | Vehicle fenders | Christian Handing | 401 |
| 294 | Handling: hand and hoist-line implements | Giuseppe Maffeis | 927 |
| 295 | Railway wheels and axles | Larry Markus Karlson | 18 |
| 296 | Land vehicles: bodies and tops | Udo Mildner | 4168 |
| 297 | Chairs and seats | Larry P. Lapointe | 4498 |
| 298 | Land vehicles: dumping | Bobby Rogers | 85 |
| 299 | Mining or in situ disintegration of hard material | David R. Hall | 412 |
| 300 | Brush, broom, and mop making | Sung-Hwan Kwon | 37 |
| 301 | Land vehicles: wheels and axles | Raphael Schlanger | 797 |
| 303 | Fluid-pressure and analogous brake systems | Lothar Schiel | 603 |
| 305 | Wheel substitutes for land vehicles | Mark S. Diekevers | 233 |
| 307 | Electrical transmission or interconnection systems | Marin Soljacic | 5114 |
| 310 | Electrical generator or motor structure | Alex Horng | 8278 |
| 312 | Supports: cabinet structure | Yun-Lung Chen | 2288 |
| 313 | Electric lamp and discharge devices | Satoshi Seo | 5536 |
| 315 | Electric lamp and discharge devices: systems | John L. Melanson | 7364 |
| 318 | Electricity: motive power systems | Steven E. Schulz | 3701 |
| 320 | Electricity: battery or capacitor charging or discharging | Shinji Ichikawa | 4657 |
| 322 | Electricity: single generator systems | Harumi Horihata | 338 |
| 323 | Electricity: power supply or regulation systems | Weihong Qiu | 3897 |
| 324 | Electricity: measuring and testing | Udo Ausserlechner | 12222 |
| 326 | Electronic digital logic circuitry | Steven Teig | 1897 |
| 327 | Miscellaneous active electrical nonlinear devices, circuits, and systems | Yantao Ma | 8549 |
| 329 | Demodulators | Daisuke Yamazaki | 73 |
| 330 | Amplifiers | Yoo Sam Na | 2937 |
| 331 | Oscillators | Taku Aoyama | 1657 |
| 332 | Modulators | Kim Rishoj Pedersen | 210 |
| 333 | Wave transmission lines and networks | Hiroyuki Nakamura | 2810 |
| 334 | Tuners | Hooman Darabi | 41 |
| 335 | Electricity: magnetically operated switches, magnets, and electromagnets | Larry W. Fullerton | 1258 |
| 336 | Inductor devices | Benjamin Weber | 1589 |
| 337 | Electricity: electrothermally or thermally actuated switches | Matthew R. Darr | 363 |
| 338 | Electrical resistors | Clark L. Smith | 338 |
| 340 | Communications: electrical | Lowell L. Wood, Jr. | 15822 |
| 341 | Coded data generation or conversion | Jong Kee Kwon | 3336 |
| 342 | Communications: directive radio wave systems and devices (e.g., radar, radio navigation) | Charles Abraham | 4363 |
| 343 | Communications: radio wave antennas | Perry Jarmuszewski | 5393 |
| 345 | Computer graphics processing and selective visual display systems | Katsuhide Uchino | 34908 |
| 346 | Recorders | Torsten Wahler | 20 |
| 347 | Incremental printing of symbolic information | Kia Silverbrook | 10780 |
| 348 | Television | Canon Kabushiki Kaisha | 27857 |
| 349 | Liquid crystal cells, elements and systems | Jae-Jin Lyu | 9107 |
| 351 | Optics: eye examining, vision testing and correcting | Ronald D. Blum | 2498 |
| 352 | Optics: motion pictures | Dean K. Goodhill | 56 |
| 353 | Optics: image projectors | Koji Hirata | 2242 |
| 355 | Photocopying | Yuichi Shibazaki | 2821 |
| 356 | Optics: measuring and testing | Yuta Urano | 8239 |
| 358 | Facsimile and static presentation processing | Kia Silverbrook | 11715 |
| 359 | Optical: systems and elements | Niall R. Lynam | 13078 |
| 360 | Dynamic magnetic information storage or retrieval | Koji Shimazawa | 4355 |
| 361 | Electricity: electrical systems and devices | Zheng-Heng Sun | 16944 |
| 362 | Illumination | Shao-Han Chang | 13196 |
| 363 | Electric power conversion systems | Ta-Yung Yang | 3495 |
| 365 | Static information storage and retrieval | Frankie F. Roohparvar | 12569 |
| 366 | Agitating | Eugene J. Kozlowski | 1163 |
| 367 | Communications, electrical: acoustic wave systems and devices | Peter M. Eick | 2015 |
| 368 | Horology: time measuring systems or devices | Saburo Manaka | 1153 |
| 369 | Dynamic information storage or retrieval | Yoshiaki Komma | 4779 |
| 370 | Multiplex communications | Juan Montojo | 41473 |
| 372 | Coherent light generators | Masaki Ueno | 3172 |
| 373 | Industrial electric heating furnaces | Thomas Matschullat | 105 |
| 374 | Thermal measuring and testing | John A. Lane | 1263 |
| 375 | Pulse or digital communications | Takeshi Chujoh | 19112 |
| 376 | Induced nuclear reactions: processes, systems, and elements | Roderick A. Hyde | 1138 |
| 377 | Electrical pulse counters, pulse dividers, or shift registers: circuits and systems | Youichi Tobita | 312 |
| 378 | X-ray or gamma ray systems or devices | Yasunori Ohta | 3887 |
| 379 | Telephonic communications | At&t Intellectual Property I, L.p. | 4261 |
| 380 | Cryptography | Mathieu Ciet | 3528 |
| 381 | Electrical audio signal processing systems and devices | Hiroshi Akino | 8031 |
| 382 | Image analysis | Geoffrey B. Rhoads | 18864 |
| 383 | Flexible bags | Robert R. Turvey | 1127 |
| 384 | Bearings | Peter Niebling | 2118 |
| 385 | Optical waveguides | Ming-Jun Li | 5771 |
| 386 | Television signal processing for dynamic recording or reproducing | Hideo Ando | 3713 |
| 388 | Electricity: motor control systems | Hua Zou | 83 |
| 392 | Electric resistance heating devices | Joseph M. Ranish | 586 |
| 396 | Photography | Koji Shibuno | 1973 |
| 398 | Optical communications | Takeshi Hoshida | 5405 |
| 399 | Electrophotography | Canon Kabushiki Kaisha | 10310 |
| 400 | Typewriting machines | Koshiro Yamaguchi | 939 |
| 401 | Coating implements with material supply | Jean-Louis Gueret | 1083 |
| 402 | Binder device releasably engaging aperture or notch of sheet | Chun Yuen To | 158 |
| 403 | Joints and connections | Yu-Tao Chen | 1729 |
| 404 | Road structure, process, or apparatus | Martin Buschmann | 908 |
| 405 | Hydraulic and earth engineering | Keith K. Millheim | 2169 |
| 406 | Conveyors: fluid current | Göran Sundholm | 239 |
| 407 | Cutters, for shaping | Gil Hecht | 700 |
| 408 | Cutting by use of rotating axially moving tool | Takuji Nomura | 867 |
| 409 | Gear cutting, milling, or planing | Yoshinori Tatsuda | 487 |
| 410 | Freight accommodation on freight carrier | John D. Anderson | 363 |
| 411 | Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener | Jiri Babej | 1374 |
| 412 | Bookbinding: process and apparatus | Nobuyoshi Suzuki | 248 |
| 413 | Sheet metal container making | James T. Williamson | 55 |
| 414 | Material or article handling | Peter Van Der Meulen | 3388 |
| 415 | Rotary kinetic fluid motors or pumps | Gabriel L. Suciu | 4326 |
| 416 | Fluid reaction surfaces (i.e., impellers) | George Liang | 3970 |
| 417 | Pumps | Ken Suitou | 3783 |
| 418 | Rotary expansible chamber devices | Masanori Masuda | 1136 |
| 419 | Powder metallurgy processes | Wayne E. Voice | 449 |
| 420 | Alloys or metallic compositions | David R. Whitcomb | 1149 |
| 422 | Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing | Rayford G. Anthony | 5214 |
| 423 | Chemistry of inorganic compounds | Hartwig Rauleder | 4616 |
| 424 | Drug, bio-affecting and body treating compositions | David M. Goldenberg | 47859 |
| 425 | Plastic article or earthenware shaping or treating: apparatus | Xiao-Ping Wu | 2139 |
| 426 | Food or edible material: processes, compositions, and products | Martin Schweizer | 8613 |
| 427 | Coating processes | Shunpei Yamazaki | 9035 |
| 428 | Stock material or miscellaneous articles | Cheng-Shi Chen | 25990 |
| 429 | Chemistry: electrical current producing apparatus, product, and process | Norio Takami | 15721 |
| 430 | Radiation imagery chemistry: process, composition, or product thereof | Jin Wu | 6883 |
| 431 | Combustion | Patrick Benedict Melton | 1102 |
| 432 | Heating | Takanori Saito | 460 |
| 433 | Dentistry | Eric Kuo | 3228 |
| 434 | Education and demonstration | Robert M. Lofthus | 3073 |
| 435 | Chemistry: molecular biology and microbiology | Anthony P. Burgard | 29401 |
| 436 | Chemistry: analytical and immunological testing | Tetsuo Nagano | 3535 |
| 438 | Semiconductor device manufacturing: process | Shunpei Yamazaki | 20028 |
| 439 | Electrical connectors | Jerry Wu | 10379 |
| 440 | Marine propulsion | Daisuke Nakamura | 695 |
| 441 | Buoys, rafts, and aquatic devices | Tzong In Yeh | 450 |
| 442 | Fabric (woven, knitted, or nonwoven textile or cloth, etc.) | Martyn Douglas Wakeman | 1626 |
| 445 | Electric lamp or space discharge component or device manufacturing | Shou-Shan Fan | 605 |
| 446 | Amusement devices: toys | Michael Nuttall | 1425 |
| 449 | Bee culture | Felix Leopold Wackers | 26 |
| 450 | Foundation garments | Zhen Qiang Liu | 357 |
| 451 | Abrading | Hung Chih Chen | 2587 |
| 452 | Butchering | Adrianus Josephes Van Den Nieuwelaar | 335 |
| 453 | Coin handling | Gregory F. String | 76 |
| 454 | Ventilation | Zhen-Xing Ye | 1349 |
| 455 | Telecommunications | Ahmadreza (reza) Rofougaran | 31879 |
| 460 | Crop threshing or separating | Jonathan E. Ricketts | 192 |
| 462 | Books, strips, and leaves for manifolding | Jeffrey William Ross | 3 |
| 463 | Amusement devices: games | Kazumasa Yoshizawa | 8614 |
| 464 | Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts | Seung Tark Oh | 715 |
| 470 | Threaded, headed fastener, or washer making: process and apparatus | Donald E. Bergstrom | 71 |
| 472 | Amusement devices | David W. Crawford | 334 |
| 473 | Games using tangible projectile | Michael J. Sullivan | 4947 |
| 474 | Endless belt power transmission systems or components | Yuji Kurematsu | 1135 |
| 475 | Planetary gear transmission systems or components | James M. Hart | 2077 |
| 476 | Friction gear transmission systems or components | Mitsugi Yamashita | 119 |
| 477 | Interrelated power delivery controls, including engine control | Atsushi Tabata | 1225 |
| 482 | Exercise devices | Leao Wang | 2924 |
| 483 | Tool changing | Daniel Allen Norton | 97 |
| 492 | Roll or roller | Junichi Takano | 153 |
| 493 | Manufacturing container or tube from paper; or other manufacturing from a sheet or web | Robert Tegel | 815 |
| 494 | Imperforate bowl: centrifugal separators | Victor D. Dolecek | 317 |
| 501 | Compositions: ceramic | Akio Koike | 1052 |
| 502 | Catalyst, solid sorbent, or support therefor: product or process of making | Alexander E. Kuperman | 2149 |
| 503 | Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor | Gerhard Stork | 165 |
| 504 | Plant protecting and regulating compositions | Christopher Hugh Rosinger | 2106 |
| 505 | Superconductor technology: apparatus, material, process | Rainer Soika | 541 |
| 506 | Combinatorial chemistry technology: method, library, apparatus | Mehdi Azimi | 5490 |
| 507 | Earth boring, well treating, and oil field chemistry | James B. Crews | 916 |
| 508 | Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions | Patrick E. Mosier | 1349 |
| 510 | Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions | Johan Smets | 2050 |
| 512 | Perfume compositions | Anthony T. Levorse, Jr. | 105 |
| 514 | Drug, bio-affecting and body treating compositions | Anthony W. Czarnik | 42247 |
| 516 | Colloid systems and wetting agents; subcombinations thereof; processes of | Anubhav Saxena | 131 |
| 518 | Chemistry: fischer-tropsch processes; or purification or recovery of products thereof | Charles L. Kibby | 463 |
| 521 | Synthetic resins or natural rubbers -- part of the class 520 series | Klaus Hahn | 1647 |
| 522 | Synthetic resins or natural rubbers -- part of the class 520 series | Reinhold Schwalm | 727 |
| 523 | Synthetic resins or natural rubbers -- part of the class 520 series | Joachim E. Klee | 1812 |
| 524 | Synthetic resins or natural rubbers -- part of the class 520 series | Bernd Bruchmann | 7246 |
| 525 | Synthetic resins or natural rubbers -- part of the class 520 series | Phillip D. Hustad | 3103 |
| 526 | Synthetic resins or natural rubbers -- part of the class 520 series | Max P. Mcdaniel | 2511 |
| 527 | Synthetic resins or natural rubbers -- part of the class 520 series | Deborah Jean Back | 58 |
| 528 | Synthetic resins or natural rubbers -- part of the class 520 series | Joachim C. Ritter | 1837 |
| 530 | Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof | Kevin I. Segall | 2836 |
| 534 | Organic compounds -- part of the class 532-570 series | Keiichi Tateishi | 157 |
| 536 | Organic compounds -- part of the class 532-570 series | William Marshall | 1766 |
| 540 | Organic compounds -- part of the class 532-570 series | Jonathan S. Lindsey | 690 |
| 544 | Organic compounds -- part of the class 532-570 series | Johann-Peter Melder | 1519 |
| 546 | Organic compounds -- part of the class 532-570 series | Gary L. Cantrell | 1614 |
| 548 | Organic compounds -- part of the class 532-570 series | Gottfried Sedelmeier | 1379 |
| 549 | Organic compounds -- part of the class 532-570 series | Frank Rosowski | 1375 |
| 552 | Organic compounds -- part of the class 532-570 series | Roy A. Swaringen, Jr. | 133 |
| 554 | Organic compounds -- part of the class 532-570 series | Scott Franklin | 470 |
| 556 | Organic compounds -- part of the class 532-570 series | Qing Yang | 620 |
| 558 | Organic compounds -- part of the class 532-570 series | Robert Baumann | 455 |
| 560 | Organic compounds -- part of the class 532-570 series | Eckhard Stroefer | 895 |
| 562 | Organic compounds -- part of the class 532-570 series | Mark O. Scates | 909 |
| 564 | Organic compounds -- part of the class 532-570 series | Johann-Peter Melder | 862 |
| 568 | Organic compounds -- part of the class 532-570 series | Victor J. Johnston | 1535 |
| 570 | Organic compounds -- part of the class 532-570 series | Hsueh Sung Tung | 420 |
| 585 | Chemistry of hydrocarbon compounds | Deng-Yang Jan | 2026 |
| 588 | Hazardous or toxic waste destruction or containment | Stephen J. Agace | 295 |
| 600 | Surgery | Lowell L. Wood, Jr. | 23487 |
| 601 | Surgery: kinesitherapy | Peter G. Barthe | 1803 |
| 602 | Surgery: splint, brace, or bandage | Arni Thor Ingimundarson | 1438 |
| 604 | Surgery | Lowell L. Wood, Jr. | 14910 |
| 606 | Surgery | Lutz Biedermann | 18063 |
| 607 | Surgery: light, thermal, and electrical application | Imad Libbus | 6635 |
| 623 | Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor | Jan Weber | 9030 |
| 700 | Data processing: generic control systems or specific applications | Kyung Shik Roh | 11000 |
| 701 | Data processing: vehicles, navigation, and relative location | Anthony H. Heap | 16209 |
| 702 | Data processing: measuring, calibrating, or testing | Lowell L. Wood, Jr. | 11304 |
| 703 | Data processing: structural design, modeling, simulation, and emulation | Jiun-Der Yu | 4699 |
| 704 | Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression | Yang-Won Jung | 6344 |
| 705 | Data processing: financial, business practice, management, or cost/price determination | Royce A. Levien | 24618 |
| 706 | Data processing: artificial intelligence | Lowell L. Wood, Jr. | 3869 |
| 707 | Data processing: database and file management or data structures | Richard D. Dettinger | 9429 |
| 708 | Electrical computers: arithmetic processing and calculating | Eric M. Schwarz | 1318 |
| 709 | Electrical computers and digital processing systems: multicomputer data transferring | International Business Machines Corporation | 25284 |
| 710 | Electrical computers and digital data processing systems: input/output | John R. Flanagan | 5829 |
| 711 | Electrical computers and digital processing systems: memory | Yoshiaki Eguchi | 11876 |
| 712 | Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) | G. Glenn Henry | 3006 |
| 713 | Electrical computers and digital processing systems: support | Wael William Diab | 12248 |
| 714 | Error detection/correction and fault detection/recovery | Lee D. Whetsel | 9902 |
| 715 | Data processing: presentation processing of document, operator interface processing, and screen saver display processing | Rick A. Hamilton, Ii | 16798 |
| 716 | Data processing: design and analysis of circuit or semiconductor mask | Viresh Paruthi | 1788 |
| 717 | Data processing: software development, installation, and management | Henricus Johannes Maria Meijer | 6257 |
| 718 | Electrical computers and digital processing systems: virtual machine task or process management or task management/control | International Business Machines Corporation | 4494 |
| 719 | Electrical computers and digital processing systems: interprogram communication or interprocess communication (ipc) | International Business Machines Corporation | 2076 |
| 720 | Dynamic optical information storage or retrieval | Jen-Chen Wu | 810 |
| 725 | Interactive video distribution systems | Michael D. Ellis | 7781 |
| 726 | Information security | Clarence T. Tegreene | 11671 |
| 800 | Multicellular living organisms and unmodified parts thereof and related processes | William H. Eby | 6678 |
| 850 | Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] | Roger Proksch | 345 |
| 903 | Hybrid electric vehicles (hevs) | Joseph Akwo Tabe | 1 |
| PLT | Plants | Monica Maria Adelheid Sanders | 159 |
