| Class | Description | Top Inventors | Number of Patent applications |
|---|
| 002 | Apparel | William L. Grilliot | 3094 |
| 004 | Baths, closets, sinks, and spittoons | Kun Yuan Tong | 1699 |
| 005 | Beds | Richard H. Heimbrock | 2081 |
| 007 | Compound tools | Spencer Frazer | 167 |
| 008 | Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers | Kyung Chul Woo | 1004 |
| 012 | Boot and shoe making | Susan L. Sokolowski | 67 |
| 014 | Bridges | David Johnson | 180 |
| 015 | Brushing, scrubbing, and general cleaning | Wayne Ernest Conrad | 3099 |
| 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 | 1374 |
| 019 | Textiles: fiber preparation | Thomas Schmitz | 70 |
| 023 | Chemistry: physical processes | Terje Fuglerud | 23 |
| 024 | Buckles, buttons, clasps, etc. | Toshio Iwahara | 1608 |
| 026 | Textiles: cloth finishing | Maria Francesca Marchesi | 19 |
| 027 | Undertaking | Ilija Rojdev | 106 |
| 028 | Textiles: manufacturing | Andreas Plump | 115 |
| 029 | Metal working | Akito Akimoto | 5635 |
| 030 | Cutlery | Kevin James Wain | 1733 |
| 033 | Geometrical instruments | Bing-Jun Zhang | 1121 |
| 034 | Drying and gas or vapor contact with solids | Andreas Stolze | 1071 |
| 036 | Boots, shoes, and leggings | Michael A. Aveni | 1697 |
| 037 | Excavating | Robert N. Gamble, Ii | 430 |
| 038 | Textiles: ironing or smoothing | Yong Jiang | 160 |
| 040 | Card, picture, or sign exhibiting | Allison Marsh | 1455 |
| 042 | Firearms | Michael T. Mayberry | 938 |
| 043 | Fishing, trapping, and vermin destroying | James H. Cink | 1056 |
| 044 | Fuel and related compositions | Dingrong Bai | 1097 |
| 047 | Plant husbandry | Donald E. Weder | 1036 |
| 048 | Gas: heating and illuminating | Earl T. Robinson | 493 |
| 049 | Movable or removable closures | Mario M. Marocco | 1362 |
| 051 | Abrasive tool making process, material, or composition | Chien-Min Sung | 293 |
| 052 | Static structures (e.g., buildings) | Darko Pervan | 5702 |
| 053 | Package making | Donald E. Weder | 1831 |
| 054 | Harness for working animal | Garrett N. Ford | 108 |
| 055 | Gas separation | Jang-Keun Oh | 889 |
| 056 | Harvesters | Randy Lohrentz | 841 |
| 057 | Textiles: spinning, twisting, and twining | Chia-Te Chou | 174 |
| 059 | Chain, staple, and horseshoe making | Shoichiro Komiya | 84 |
| 060 | Power plants | Eugene V. Gonze | 7827 |
| 062 | Refrigeration | Michael F. Taras | 5437 |
| 063 | Jewelry | Roni Rydlewicz | 308 |
| 065 | Glass manufacturing | Andrey V. Filippov | 875 |
| 066 | Textiles: knitting | Tiberio Lonati | 197 |
| 068 | Textiles: fluid treating apparatus | Ig Geun Kwon | 667 |
| 069 | Leather manufactures | Jens Hedegaard | 12 |
| 070 | Locks | Toshiharu Katagiri | 1278 |
| 071 | Chemistry: fertilizers | John Larry Sanders | 308 |
| 072 | Metal deforming | Sergey Fedorovich Golovashchenko | 1608 |
| 073 | Measuring and testing | Anthony D. Kurtz | 9171 |
| 074 | Machine element or mechanism | Wolfgang Rieger | 3464 |
| 075 | Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures | Johannes Leopold Schenk | 833 |
| 076 | Metal tools and implements, making | John H. Stevens | 69 |
| 081 | Tools | Bobby Hu | 1341 |
| 082 | Turning | Takanobu Akiyama | 197 |
| 083 | Cutting | Stephen F. Gass | 1845 |
| 084 | Music | Kenneth R. Lemons | 1502 |
| 086 | Ammunition and explosive-charge making | Ryusuke Kitamura | 62 |
| 087 | Textiles: braiding, netting, and lace making | Stephen J. Kryven | 38 |
| 089 | Ordnance | Moshe Ravid | 785 |
| 091 | Motors: expansible chamber type | Clemens Krebs | 240 |
| 092 | Expansible chamber devices | Rainer Scharp | 442 |
| 095 | Gas separation: processes | Chunqing Liu | 1366 |
| 096 | Gas separation: apparatus | Toshio Tanaka | 775 |
| 099 | Foods and beverages: apparatus | Alexandre Kollep | 1617 |
| 100 | Presses | Jean Viaud | 376 |
| 101 | Printing | Georg Schneider | 1514 |
| 102 | Ammunition and explosives | Jahangir S. Rastegar | 715 |
| 104 | Railways | Qinghua Zheng | 320 |
| 105 | Railway rolling stock | James W. Forbes | 335 |
| 106 | Compositions: coating or plastic | Brent R. Constantz | 1645 |
| 108 | Horizontally supported planar surfaces | William P. Apps | 682 |
| 109 | Safes, bank protection, or a related device | Peter Villiger | 86 |
| 110 | Furnaces | Toshihiko Yamada | 467 |
| 111 | Planting | Michael E. Friestad | 294 |
| 112 | Sewing | Masashi Tokura | 353 |
| 114 | Ships | Frank M. Stewart | 1161 |
| 116 | Signals and indicators | Dene H. Taylor | 410 |
| 117 | Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor | Hiroshi Kishi | 558 |
| 118 | Coating apparatus | Shao-Kai Pei | 1788 |
| 119 | Animal husbandry | Karel Van Den Berg | 2148 |
| 122 | Liquid heaters and vaporizers | Jan Brückner | 424 |
| 123 | Internal-combustion engines | Ross Dykstra Pursifull | 6732 |
| 124 | Mechanical guns and projectors | Richard L. Bednar | 573 |
| 125 | Stone working | Koji Kitagawa | 171 |
| 126 | Stoves and furnaces | David Deng | 1781 |
| 127 | Sugar, starch, and carbohydrates | Sunalie N. Hillier | 98 |
| 128 | Surgery | Philip Rodney Kwok | 3783 |
| 131 | Tobacco | Firooz Rasouli | 692 |
| 132 | Toilet | Jonathan Wood | 1361 |
| 134 | Cleaning and liquid contact with solids | Helmut Jerg | 3121 |
| 135 | Tent, canopy, umbrella, or cane | Oliver Joen-An Ma | 731 |
| 136 | Batteries: thermoelectric and photoelectric | Richard Allen Hayes | 5779 |
| 137 | Fluid handling | Axel Scherer | 4126 |
| 138 | Pipes and tubular conduits | Larry W. Kiest, Jr. | 926 |
| 139 | Textiles: weaving | Francisco Speich | 184 |
| 140 | Wireworking | Takahiro Nagaoka | 99 |
| 141 | Fluent material handling, with receiver or receiver coacting means | Dieter-Rudolf Krulitsch | 1179 |
| 142 | Wood turning | Jerry A. Arnold | 3 |
| 144 | Woodworking | Bor-Yann Chuang | 375 |
| 147 | Coopering | Breck Waterman | 5 |
| 148 | Metal treatment | Kiyoshige Hirose | 1508 |
| 149 | Explosive and thermic compositions or charges | Graylon K. Williams | 151 |
| 150 | Purses, wallets, and protective covers | Christian J. Seegmiller | 276 |
| 152 | Resilient tires and wheels | Paul Harry Sandstrom | 1642 |
| 156 | Adhesive bonding and miscellaneous chemical manufacture | Maurizio Marchini | 5770 |
| 157 | Wheelwright machines | Lawrence J. Lawson | 82 |
| 159 | Concentrating evaporators | Michael J. Rutsch | 49 |
| 160 | Flexible or portable closure, partition, or panel | Tzong Fu Lin | 1037 |
| 162 | Paper making and fiber liberation | Jonas Saetherasen | 1254 |
| 163 | Needle and pin making | Tatsuya Okada | 3 |
| 164 | Metal founding | Walter N. Blejde | 803 |
| 165 | Heat exchange | Chun-Chi Chen | 4192 |
| 166 | Wells | Dinesh R. Patel | 5536 |
| 168 | Farriery | Lawrence Ronald Daine | 33 |
| 169 | Fire extinguishers | Robert G. Dunster | 575 |
| 171 | Unearthing plants or buried objects | Antonio Roberto Rocca | 14 |
| 172 | Earth working | Michael G. Kovach | 416 |
| 173 | Tool driving or impacting | Heiko Roehm | 851 |
| 174 | Electricity: conductors and insulators | Shou-Kuo Hsu | 5637 |
| 175 | Boring or penetrating the earth | David R. Hall | 2008 |
| 177 | Weighing scales | Shigeru Endo | 358 |
| 178 | Telegraphy | Kia Silverbrook | 367 |
| 180 | Motor vehicles | Hidehiro Oba | 2986 |
| 181 | Acoustics | Joel D. Brewer | 793 |
| 182 | Fire escape, ladder, or scaffold | Thomas W. Parker | 792 |
| 184 | Lubrication | Egon Eisenbacher | 314 |
| 185 | Motors: spring, weight, or animal powered | Donald E. Fraser | 29 |
| 186 | Merchandising | Michael S. Notheis | 28 |
| 187 | Elevator, industrial lift truck, or stationary lift for vehicle | Takaharu Ueda | 788 |
| 188 | Brakes | Johann Baumgartner | 1655 |
| 190 | Trunks and hand-carried luggage | Dirk Santy | 237 |
| 191 | Electricity: transmission to vehicles | Kurt Vollenwyder | 73 |
| 192 | Clutches and power-stop control | Farzad Samie | 1294 |
| 193 | Conveyors, chutes, skids, guides, and ways | Derral Jay Allen | 72 |
| 194 | Check-actuated control mechanisms | Takao Nireki | 202 |
| 196 | Mineral oils: apparatus | Colin G. Caro | 25 |
| 198 | Conveyors: power-driven | Matthew L. Fourney | 1720 |
| 200 | Electricity: circuit makers and breakers | Chao Chen | 1915 |
| 201 | Distillation: processes, thermolytic | Ronald Kim | 137 |
| 202 | Distillation: apparatus | Andrew A. Schnellinger | 170 |
| 203 | Distillation: processes, separatory | Dilum Dunuwila | 302 |
| 204 | Chemistry: electrical and wave energy | Michael G. Pollack | 3566 |
| 205 | Electrolysis: processes, compositions used therein, and methods of preparing the compositions | Benjamin J. Feldman | 2517 |
| 206 | Special receptacle or package | Daniel Lee Bizzell | 4583 |
| 208 | Mineral oils: processes and products | Scott Lee Wellington | 1406 |
| 209 | Classifying, separating, and assorting solids | Brian S. Carr | 841 |
| 210 | Liquid purification or separation | Robert W. Childers | 6589 |
| 211 | Supports: racks | Stephen N. Hardy | 1438 |
| 212 | Traversing hoists | Hans-Dieter Willim | 288 |
| 213 | Railway draft appliances | Jerry R. Smerecky | 61 |
| 215 | Bottles and jars | Takao Iizuka | 1010 |
| 216 | Etching a substrate: processes | Masatoshi Sakurai | 1421 |
| 217 | Wooden receptacles | Donald Obergoenner | 14 |
| 218 | High-voltage switches with arc preventing or extinguishing devices | Kenji Tsuchiya | 249 |
| 219 | Electric heating | Shou-Shan Fan | 4440 |
| 220 | Receptacles | Daniel Lee Bizzell | 4256 |
| 221 | Article dispensing | Richard D. Michelli | 786 |
| 222 | Dispensing | Heiner Ophardt | 2674 |
| 223 | Apparel apparatus | Stanley F. Gouldson | 275 |
| 224 | Package and article carriers | Chris Sautter | 1491 |
| 225 | Severing by tearing or breaking | Chi-Tsai Chang | 136 |
| 226 | Advancing material of indeterminate length | Mark Lycette | 135 |
| 227 | Elongated-member-driving apparatus | Frederick E. Shelton, Iv | 1246 |
| 228 | Metal fusion bonding | Peter A. Gruber | 967 |
| 229 | Envelopes, wrappers, and paperboard boxes | Jean-Manuel Gomes | 836 |
| 231 | Whips and whip apparatus | Per Ib Rosendal Andersen | 3 |
| 232 | Deposit and collection receptacles | Leon Saltsov | 51 |
| 234 | Selective cutting (e.g., punching) | Anthony A. Breen, Jr. | 7 |
| 235 | Registers | Paul Lapstun | 4002 |
| 236 | Automatic temperature and humidity regulation | Cary Leen | 351 |
| 237 | Heating systems | Alessandro Fiumidinisi | 160 |
| 238 | Railways: surface track | Winfried Bösterling | 165 |
| 239 | Fluid sprinkling, spraying, and diffusing | Stephen R. Lewis | 2821 |
| 241 | Solid material comminution or disintegration | Charles Sued | 1271 |
| 242 | Winding, tensioning, or guiding | Ian D. Kovacevich | 1259 |
| 244 | Aeronautics and astronautics | Alain Porte | 3281 |
| 245 | Wire fabrics and structure | Stephan Kieselstein | 4 |
| 246 | Railway switches and signals | Ajith Kuttannair Kumar | 136 |
| 248 | Supports | Jeffrey D. Carnevali | 4345 |
| 249 | Static molds | Artur Schwoerer | 265 |
| 250 | Radiant energy | Yasunori Ohta | 9163 |
| 251 | Valves and valve actuation | Dietmar Kratzer | 1992 |
| 252 | Compositions | Masayuki Saito | 4581 |
| 254 | Implements or apparatus for applying pushing or pulling force | James Kempf | 665 |
| 256 | Fences | Dallas James | 432 |
| 257 | Active solid-state devices (e.g., transistors, solid-state diodes) | Shunpei Yamazaki | 38827 |
| 260 | Chemistry of carbon compounds | Udo Knippenberg | 8 |
| 261 | Gas and liquid contact apparatus | Charles E. Tharp | 373 |
| 264 | Plastic and nonmetallic article shaping or treating: processes | Byung-Jin Choi | 5062 |
| 266 | Metallurgical apparatus | Paul V. Cooper | 324 |
| 267 | Spring devices | Joshua R. Leonard | 711 |
| 269 | Work holders | Takayuki Kawakami | 715 |
| 270 | Sheet-material associating | Katsuya Sasahara | 380 |
| 271 | Sheet feeding or delivering | Lloyd A. Williams | 1993 |
| 273 | Amusement devices: games | Attila Grauzer | 1505 |
| 277 | Seal for a joint or juncture | Glenn M. Garrison | 1469 |
| 279 | Chucks or sockets | Eugen Hangleiter | 305 |
| 280 | Land vehicles | Osamu Fukawatase | 5516 |
| 281 | Books, strips, and leaves | David C.t. Jour | 203 |
| 283 | Printed matter | Pierre Degott | 472 |
| 285 | Pipe joints or couplings | Peter C. Williams | 1674 |
| 289 | Knots and knot tying | Maureen Oliveto | 24 |
| 290 | Prime-mover dynamo plants | Henrik Stiesdal | 2803 |
| 291 | Track sanders | Werner Bartling | 7 |
| 292 | Closure fasteners | Dieter Ramsauer | 874 |
| 293 | Vehicle fenders | Christian Handing | 325 |
| 294 | Handling: hand and hoist-line implements | Giuseppe Maffeis | 708 |
| 295 | Railway wheels and axles | Daniel Hunter Stone | 13 |
| 296 | Land vehicles: bodies and tops | Alan L. Browne | 3384 |
| 297 | Chairs and seats | Larry P. Lapointe | 3512 |
| 298 | Land vehicles: dumping | Bobby Rogers | 71 |
| 299 | Mining or in situ disintegration of hard material | David R. Hall | 312 |
| 300 | Brush, broom, and mop making | Sung-Hwan Kwon | 30 |
| 301 | Land vehicles: wheels and axles | Jean-Pierre Mercat | 584 |
| 303 | Fluid-pressure and analogous brake systems | Uwe Bensch | 470 |
| 305 | Wheel substitutes for land vehicles | Patrick J. Mulligan | 172 |
| 307 | Electrical transmission or interconnection systems | Marin Soljacic | 3539 |
| 310 | Electrical generator or motor structure | Alex Horng | 6326 |
| 312 | Supports: cabinet structure | Karl-Friedrich Laible | 1745 |
| 313 | Electric lamp and discharge devices | Satoshi Seo | 4816 |
| 315 | Electric lamp and discharge devices: systems | John L. Melanson | 5460 |
| 318 | Electricity: motive power systems | Steven E. Schulz | 2866 |
| 320 | Electricity: battery or capacitor charging or discharging | Guoxing Li | 3285 |
| 322 | Electricity: single generator systems | Harumi Horihata | 272 |
| 323 | Electricity: power supply or regulation systems | Weihong Qiu | 3011 |
| 324 | Electricity: measuring and testing | Udo Ausserlechner | 9646 |
| 326 | Electronic digital logic circuitry | Jason Redgrave | 1554 |
| 327 | Miscellaneous active electrical nonlinear devices, circuits, and systems | Feng Lin | 6789 |
| 329 | Demodulators | Daisuke Yamazaki | 66 |
| 330 | Amplifiers | Chang-Ho Lee | 2239 |
| 331 | Oscillators | Ping-Ying Wang | 1323 |
| 332 | Modulators | Zdravko Lukic | 179 |
| 333 | Wave transmission lines and networks | Hiroyuki Nakamura | 2280 |
| 334 | Tuners | Chirn Chye Boon | 37 |
| 335 | Electricity: magnetically operated switches, magnets, and electromagnets | Larry W. Fullerton | 964 |
| 336 | Inductor devices | Benjamin Weber | 1207 |
| 337 | Electricity: electrothermally or thermally actuated switches | Matthew R. Darr | 300 |
| 338 | Electrical resistors | Werner Kahr | 289 |
| 340 | Communications: electrical | John R. Tuttle | 13098 |
| 341 | Coded data generation or conversion | Jong Kee Kwon | 2785 |
| 342 | Communications: directive radio wave systems and devices (e.g., radar, radio navigation) | Charles Abraham | 3482 |
| 343 | Communications: radio wave antennas | Perry Jarmuszewski | 4298 |
| 345 | Computer graphics processing and selective visual display systems | Katsuhide Uchino | 25649 |
| 346 | Recorders | Klaus Hug | 18 |
| 347 | Incremental printing of symbolic information | Kia Silverbrook | 8762 |
| 348 | Television | Eran Steinberg | 20768 |
| 349 | Liquid crystal cells, elements and systems | Jae-Jin Lyu | 7320 |
| 351 | Optics: eye examining, vision testing and correcting | Ronald D. Blum | 1934 |
| 352 | Optics: motion pictures | William Gibbens Redmann | 50 |
| 353 | Optics: image projectors | Koji Hirata | 1826 |
| 355 | Photocopying | Yuichi Shibazaki | 2334 |
| 356 | Optics: measuring and testing | Akira Hamamatsu | 6597 |
| 358 | Facsimile and static presentation processing | Kia Silverbrook | 9270 |
| 359 | Optical: systems and elements | Niall R. Lynam | 10585 |
| 360 | Dynamic magnetic information storage or retrieval | Koji Shimazawa | 3735 |
| 361 | Electricity: electrical systems and devices | Li-Ping Chen | 12941 |
| 362 | Illumination | Shao-Han Chang | 9821 |
| 363 | Electric power conversion systems | Ta-Yung Yang | 2582 |
| 365 | Static information storage and retrieval | Frankie F. Roohparvar | 10058 |
| 366 | Agitating | Eugene J. Kozlowski | 918 |
| 367 | Communications, electrical: acoustic wave systems and devices | Chen Feng | 1518 |
| 368 | Horology: time measuring systems or devices | Kenji Ogasawara | 897 |
| 369 | Dynamic information storage or retrieval | Motoshi Ito | 4283 |
| 370 | Multiplex communications | Juan Montojo | 31729 |
| 372 | Coherent light generators | Takahiro Arakida | 2658 |
| 373 | Industrial electric heating furnaces | Thomas Matschullat | 75 |
| 374 | Thermal measuring and testing | John A. Lane | 1000 |
| 375 | Pulse or digital communications | Takeshi Chujoh | 15139 |
| 376 | Induced nuclear reactions: processes, systems, and elements | Roderick A. Hyde | 866 |
| 377 | Electrical pulse counters, pulse dividers, or shift registers: circuits and systems | Youichi Tobita | 245 |
| 378 | X-ray or gamma ray systems or devices | Yasunori Ohta | 3074 |
| 379 | Telephonic communications | Matthew J. Ranney | 3513 |
| 380 | Cryptography | James P. Schneider | 2881 |
| 381 | Electrical audio signal processing systems and devices | Yang-Won Jung | 6112 |
| 382 | Image analysis | Geoffrey B. Rhoads | 14891 |
| 383 | Flexible bags | Robert R. Turvey | 908 |
| 384 | Bearings | Peter Niebling | 1710 |
| 385 | Optical waveguides | Trevor D. Smith | 4598 |
| 386 | Television signal processing for dynamic recording or reproducing | Hideo Ando | 3018 |
| 388 | Electricity: motor control systems | Hua Zou | 83 |
| 392 | Electric resistance heating devices | Joseph M. Ranish | 462 |
| 396 | Photography | Koji Shibuno | 1587 |
| 398 | Optical communications | Takeshi Hoshida | 4203 |
| 399 | Electrophotography | Shougo Sato | 8354 |
| 400 | Typewriting machines | Koshiro Yamaguchi | 790 |
| 401 | Coating implements with material supply | Jean-Louis Gueret | 890 |
| 402 | Binder device releasably engaging aperture or notch of sheet | Chun Yuen To | 138 |
| 403 | Joints and connections | Te-Sheng Jan | 1303 |
| 404 | Road structure, process, or apparatus | Martin Buschmann | 734 |
| 405 | Hydraulic and earth engineering | Keith K. Millheim | 1728 |
| 406 | Conveyors: fluid current | Göran Sundholm | 185 |
| 407 | Cutters, for shaping | Gil Hecht | 556 |
| 408 | Cutting by use of rotating axially moving tool | Takuji Nomura | 697 |
| 409 | Gear cutting, milling, or planing | Yoshinori Tatsuda | 376 |
| 410 | Freight accommodation on freight carrier | John D. Anderson | 297 |
| 411 | Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener | Paul Gaudron | 1111 |
| 412 | Bookbinding: process and apparatus | Nobuyoshi Suzuki | 199 |
| 413 | Sheet metal container making | James T. Williamson | 38 |
| 414 | Material or article handling | Peter Van Der Meulen | 2645 |
| 415 | Rotary kinetic fluid motors or pumps | Walter M. Presz, Jr. | 3202 |
| 416 | Fluid reaction surfaces (i.e., impellers) | George Liang | 3014 |
| 417 | Pumps | Alex Horng | 2942 |
| 418 | Rotary expansible chamber devices | Masanori Masuda | 874 |
| 419 | Powder metallurgy processes | Wayne E. Voice | 362 |
| 420 | Alloys or metallic compositions | Awadh B. Pandey | 916 |
| 422 | Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing | Ebrahim Bagherzadeh | 4111 |
| 423 | Chemistry of inorganic compounds | Martin Sesing | 3664 |
| 424 | Drug, bio-affecting and body treating compositions | David M. Goldenberg | 38553 |
| 425 | Plastic article or earthenware shaping or treating: apparatus | Xiao-Ping Wu | 1710 |
| 426 | Food or edible material: processes, compositions, and products | William H. Eby | 6944 |
| 427 | Coating processes | Shou-Shan Fan | 7329 |
| 428 | Stock material or miscellaneous articles | Cheng-Shi Chen | 20696 |
| 429 | Chemistry: electrical current producing apparatus, product, and process | Norio Takami | 12186 |
| 430 | Radiation imagery chemistry: process, composition, or product thereof | Jin Wu | 5705 |
| 431 | Combustion | David Deng | 862 |
| 432 | Heating | Tobias Klegraf | 305 |
| 433 | Dentistry | Eric Kuo | 2574 |
| 434 | Education and demonstration | Yuen-Kwok Chin | 2271 |
| 435 | Chemistry: molecular biology and microbiology | Toshifumi Fukui | 23725 |
| 436 | Chemistry: analytical and immunological testing | Dietmar Zdunek | 2857 |
| 438 | Semiconductor device manufacturing: process | Shunpei Yamazaki | 15728 |
| 439 | Electrical connectors | Jerry Wu | 8116 |
| 440 | Marine propulsion | Daisuke Nakamura | 570 |
| 441 | Buoys, rafts, and aquatic devices | Tzong In Yeh | 358 |
| 442 | Fabric (woven, knitted, or nonwoven textile or cloth, etc.) | Martyn Douglas Wakeman | 1301 |
| 445 | Electric lamp or space discharge component or device manufacturing | Shou-Shan Fan | 497 |
| 446 | Amusement devices: toys | Michael Nuttall | 1141 |
| 449 | Bee culture | Fahd E.m.a. Alazemi | 19 |
| 450 | Foundation garments | Zhen Qiang Liu | 276 |
| 451 | Abrading | Hung Chih Chen | 2080 |
| 452 | Butchering | Adrianus Josephes Van Den Nieuwelaar | 251 |
| 453 | Coin handling | Eisei Nishida | 60 |
| 454 | Ventilation | Dariusz Krakowski | 1030 |
| 455 | Telecommunications | Ahmadreza (reza) Rofougaran | 24251 |
| 460 | Crop threshing or separating | Jonathan E. Ricketts | 153 |
| 462 | Books, strips, and leaves for manifolding | Jeffrey William Ross | 3 |
| 463 | Amusement devices: games | Kazumasa Yoshizawa | 6545 |
| 464 | Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts | Teruaki Fujio | 572 |
| 470 | Threaded, headed fastener, or washer making: process and apparatus | Donald E. Bergstrom | 54 |
| 472 | Amusement devices | David W. Crawford | 245 |
| 473 | Games using tangible projectile | Michael J. Sullivan | 3897 |
| 474 | Endless belt power transmission systems or components | Yuji Kurematsu | 932 |
| 475 | Planetary gear transmission systems or components | Scott H. Wittkopp | 1627 |
| 476 | Friction gear transmission systems or components | Mitsugi Yamashita | 90 |
| 477 | Interrelated power delivery controls, including engine control | Atsushi Tabata | 1012 |
| 482 | Exercise devices | Leao Wang | 2314 |
| 483 | Tool changing | Daniel Allen Norton | 75 |
| 492 | Roll or roller | Hirokazu Nishimori | 121 |
| 493 | Manufacturing container or tube from paper; or other manufacturing from a sheet or web | Robert Tegel | 603 |
| 494 | Imperforate bowl: centrifugal separators | Victor D. Dolecek | 252 |
| 501 | Compositions: ceramic | Akihiro Koyama | 881 |
| 502 | Catalyst, solid sorbent, or support therefor: product or process of making | Kazushige Ohno | 1723 |
| 503 | Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor | Gabriel Iftime | 140 |
| 504 | Plant protecting and regulating compositions | Christopher Hugh Rosinger | 1661 |
| 505 | Superconductor technology: apparatus, material, process | Rainer Soika | 403 |
| 506 | Combinatorial chemistry technology: method, library, apparatus | Mehdi Azimi | 4129 |
| 507 | Earth boring, well treating, and oil field chemistry | Leiming Li | 701 |
| 508 | Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions | John M. Rosenbaum | 1056 |
| 510 | Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions | Johan Smets | 1720 |
| 512 | Perfume compositions | Anthony T. Levorse, Jr. | 87 |
| 514 | Drug, bio-affecting and body treating compositions | Anthony W. Czarnik | 35234 |
| 516 | Colloid systems and wetting agents; subcombinations thereof; processes of | Zijun Xia | 118 |
| 518 | Chemistry: fischer-tropsch processes; or purification or recovery of products thereof | Charles L. Kibby | 361 |
| 521 | Synthetic resins or natural rubbers -- part of the class 520 series | Klaus Hahn | 1266 |
| 522 | Synthetic resins or natural rubbers -- part of the class 520 series | Orhun K. Muratoglu | 559 |
| 523 | Synthetic resins or natural rubbers -- part of the class 520 series | Peter Bissinger | 1420 |
| 524 | Synthetic resins or natural rubbers -- part of the class 520 series | Werner Krause | 5789 |
| 525 | Synthetic resins or natural rubbers -- part of the class 520 series | Phillip D. Hustad | 2499 |
| 526 | Synthetic resins or natural rubbers -- part of the class 520 series | Max P. Mcdaniel | 2008 |
| 527 | Synthetic resins or natural rubbers -- part of the class 520 series | Deborah Jean Back | 50 |
| 528 | Synthetic resins or natural rubbers -- part of the class 520 series | Joachim C. Ritter | 1501 |
| 530 | Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof | Kevin I. Segall | 2253 |
| 534 | Organic compounds -- part of the class 532-570 series | Keiichi Tateishi | 136 |
| 536 | Organic compounds -- part of the class 532-570 series | William Marshall | 1403 |
| 540 | Organic compounds -- part of the class 532-570 series | Jonathan S. Lindsey | 539 |
| 544 | Organic compounds -- part of the class 532-570 series | Johann-Peter Melder | 1210 |
| 546 | Organic compounds -- part of the class 532-570 series | Gary L. Cantrell | 1306 |
| 548 | Organic compounds -- part of the class 532-570 series | Gottfried Sedelmeier | 1132 |
| 549 | Organic compounds -- part of the class 532-570 series | Frank Rosowski | 1093 |
| 552 | Organic compounds -- part of the class 532-570 series | Robert M. Moriarty | 110 |
| 554 | Organic compounds -- part of the class 532-570 series | Daniel B. Garbark | 322 |
| 556 | Organic compounds -- part of the class 532-570 series | Qing Yang | 490 |
| 558 | Organic compounds -- part of the class 532-570 series | Pieter Ooms | 362 |
| 560 | Organic compounds -- part of the class 532-570 series | Eckhard Stroefer | 719 |
| 562 | Organic compounds -- part of the class 532-570 series | Mark O. Scates | 713 |
| 564 | Organic compounds -- part of the class 532-570 series | Johann-Peter Melder | 704 |
| 568 | Organic compounds -- part of the class 532-570 series | Victor J. Johnston | 1212 |
| 570 | Organic compounds -- part of the class 532-570 series | Hsueh Sung Tung | 346 |
| 585 | Chemistry of hydrocarbon compounds | James R. Butler | 1518 |
| 588 | Hazardous or toxic waste destruction or containment | Koichiro Nakamura | 243 |
| 600 | Surgery | Adam Heller | 18274 |
| 601 | Surgery: kinesitherapy | Michael H. Slayton | 1359 |
| 602 | Surgery: splint, brace, or bandage | Arni Thor Ingimundarson | 1135 |
| 604 | Surgery | Lowell L. Wood, Jr. | 11585 |
| 606 | Surgery | James F. Zucherman | 13994 |
| 607 | Surgery: light, thermal, and electrical application | Imad Libbus | 5241 |
| 623 | Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor | Jan Weber | 7105 |
| 700 | Data processing: generic control systems or specific applications | Kyung Shik Roh | 8636 |
| 701 | Data processing: vehicles, navigation, and relative location | Anthony H. Heap | 12897 |
| 702 | Data processing: measuring, calibrating, or testing | Lowell L. Wood, Jr. | 8546 |
| 703 | Data processing: structural design, modeling, simulation, and emulation | Jiun-Der Yu | 3535 |
| 704 | Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression | Yang-Won Jung | 4926 |
| 705 | Data processing: financial, business practice, management, or cost/price determination | Royce A. Levien | 20567 |
| 706 | Data processing: artificial intelligence | Lowell L. Wood, Jr. | 3040 |
| 707 | Data processing: database and file management or data structures | Richard D. Dettinger | 9429 |
| 708 | Electrical computers: arithmetic processing and calculating | Eric M. Schwarz | 1083 |
| 709 | Electrical computers and digital processing systems: multicomputer data transferring | Jeyhan Karaoguz | 18434 |
| 710 | Electrical computers and digital data processing systems: input/output | John R. Flanagan | 4721 |
| 711 | Electrical computers and digital processing systems: memory | Yoshiaki Eguchi | 9018 |
| 712 | Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) | Terry Parks | 2438 |
| 713 | Electrical computers and digital processing systems: support | Wael William Diab | 9575 |
| 714 | Error detection/correction and fault detection/recovery | Lee D. Whetsel | 8149 |
| 715 | Data processing: presentation processing of document, operator interface processing, and screen saver display processing | Rick A. Hamilton, Ii | 12803 |
| 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 | 4895 |
| 718 | Electrical computers and digital processing systems: virtual machine task or process management or task management/control | Ravi K. Arimilli | 3285 |
| 719 | Electrical computers and digital processing systems: interprogram communication or interprocess communication (ipc) | Henricus Johannes Maria Meijer | 1697 |
| 720 | Dynamic optical information storage or retrieval | Jen-Chen Wu | 697 |
| 725 | Interactive video distribution systems | Michael D. Ellis | 6204 |
| 726 | Information security | Stephen R. Carter | 8560 |
| 800 | Multicellular living organisms and unmodified parts thereof and related processes | William H. Eby | 5288 |
| 850 | Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] | Roger Proksch | 287 |
| 903 | Hybrid electric vehicles (hevs) | Joseph Akwo Tabe | 1 |
| PLT | Plants | Monica Maria Adelheid Sanders | 159 |
