U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 1977 | 2476 | 2816 | 2977 | 2855 | 13101 |
532 | Organic Compounds (includes Classes 532-570) | 1489 | 1596 | 1905 | 1823 | 1651 | 8464 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 1438 | 1474 | 1749 | 1678 | 1787 | 8126 |
438 | Semiconductor Device Manufacturing: Process | 849 | 1009 | 1347 | 1911 | 2465 | 7581 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 915 | 1009 | 1465 | 1578 | 1609 | 6576 |
428 | Stock Material or Miscellaneous Articles | 1069 | 1151 | 1388 | 1478 | 1433 | 6519 |
435 | Chemistry: Molecular Biology and Microbiology | 697 | 885 | 1365 | 1298 | 1174 | 5419 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 908 | 888 | 1065 | 1117 | 1140 | 5118 |
359 | Optics: Systems (Including Communication) and Elements | 809 | 801 | 1186 | 1113 | 1126 | 5035 |
365 | Static Information Storage and Retrieval | 593 | 688 | 890 | 966 | 1132 | 4269 |
123 | Internal-Combustion Engines | 662 | 724 | 896 | 846 | 920 | 4048 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 508 | 621 | 994 | 930 | 944 | 3997 |
439 | Electrical Connectors | 500 | 631 | 688 | 906 | 1267 | 3992 |
369 | Dynamic Information Storage or Retrieval | 680 | 684 | 925 | 821 | 725 | 3835 |
399 | Electrophotography | 646 | 554 | 793 | 829 | 778 | 3600 |
073 | Measuring and Testing | 644 | 605 | 755 | 710 | 688 | 3402 |
348 | Television | 682 | 564 | 730 | 691 | 601 | 3268 |
347 | Incremental Printing of Symbolic Information | 379 | 347 | 635 | 687 | 959 | 3007 |
455 | Telecommunications | 368 | 302 | 588 | 770 | 902 | 2930 |
370 | Multiplex Communications | 511 | 413 | 562 | 691 | 730 | 2907 |
396 | Photography | 517 | 584 | 720 | 524 | 506 | 2851 |
128 | Surgery (includes Class 600) | 416 | 481 | 654 | 587 | 656 | 2794 |
375 | Pulse or Digital Communications | 420 | 425 | 625 | 603 | 649 | 2722 |
360 | Dynamic Magnetic Information Storage or Retrieval | 396 | 425 | 617 | 613 | 615 | 2666 |
358 | Facsimile and Static Presentation Processing | 484 | 402 | 659 | 559 | 500 | 2604 |
382 | Image Analysis | 257 | 311 | 659 | 727 | 644 | 2598 |
250 | Radiant Energy | 449 | 417 | 537 | 544 | 518 | 2465 |
361 | Electricity: Electrical Systems and Devices | 399 | 345 | 544 | 525 | 588 | 2401 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 340 | 317 | 501 | 585 | 636 | 2379 |
029 | Metal Working | 368 | 398 | 522 | 471 | 569 | 2328 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 347 | 436 | 549 | 515 | 474 | 2321 |
324 | Electricity: Measuring and Testing | 526 | 444 | 441 | 393 | 507 | 2311 |
340 | Communications: Electrical | 347 | 384 | 521 | 507 | 544 | 2303 |
310 | Electrical Generator or Motor Structure | 248 | 305 | 565 | 554 | 589 | 2261 |
427 | Coating Processes | 349 | 403 | 436 | 511 | 531 | 2230 |
210 | Liquid Purification or Separation | 428 | 425 | 457 | 443 | 445 | 2198 |
356 | Optics: Measuring and Testing | 359 | 351 | 511 | 459 | 483 | 2163 |
280 | Land Vehicles | 335 | 285 | 410 | 480 | 583 | 2093 |
219 | Electric Heating | 312 | 274 | 420 | 497 | 583 | 2086 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 281 | 363 | 437 | 495 | 464 | 2040 |
349 | Liquid Crystal Cells, Elements and Systems | 286 | 296 | 502 | 401 | 544 | 2029 |
062 | Refrigeration | 253 | 295 | 372 | 443 | 425 | 1788 |
385 | Optical Waveguides | 264 | 305 | 409 | 377 | 414 | 1769 |
714 | Error Detection/Correction and Fault Detection/Recovery | 297 | 261 | 425 | 387 | 391 | 1761 |
060 | Power Plants | 229 | 291 | 376 | 374 | 397 | 1667 |
318 | Electricity: Motive Power Systems | 271 | 233 | 423 | 375 | 363 | 1665 |
252 | Compositions | 311 | 259 | 377 | 380 | 337 | 1664 |
313 | Electric Lamp and Discharge Devices | 235 | 221 | 397 | 410 | 367 | 1630 |
074 | Machine Element or Mechanism | 263 | 251 | 375 | 357 | 362 | 1608 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 241 | 171 | 297 | 346 | 462 | 1517 |
242 | Winding, Tensioning, or Guiding | 270 | 255 | 356 | 311 | 313 | 1505 |
137 | Fluid Handling | 186 | 224 | 288 | 349 | 401 | 1448 |
379 | Telephonic Communications | 244 | 178 | 345 | 355 | 295 | 1417 |
604 | Surgery (Medicators and Receptors) | 200 | 238 | 340 | 332 | 305 | 1415 |
426 | Food or Edible Material: Processes, Compositions, and Products | 230 | 195 | 253 | 360 | 348 | 1386 |
606 | Surgery (instruments) | 159 | 239 | 321 | 294 | 345 | 1358 |
052 | Static Structures (e.g., Buildings) | 215 | 256 | 297 | 284 | 300 | 1352 |
362 | Illumination | 202 | 225 | 264 | 278 | 383 | 1352 |
101 | Printing | 223 | 238 | 339 | 275 | 275 | 1350 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 245 | 221 | 257 | 248 | 353 | 1324 |
072 | Metal Deforming | 167 | 213 | 278 | 304 | 285 | 1247 |
386 | Television Signal Processing for Dynamic Recording or Reproducing | 225 | 179 | 282 | 288 | 253 | 1227 |
204 | Chemistry: Electrical and Wave Energy | 201 | 209 | 243 | 217 | 344 | 1214 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 181 | 181 | 282 | 272 | 262 | 1178 |
106 | Compositions: Coating or Plastic | 180 | 210 | 272 | 283 | 229 | 1174 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 132 | 131 | 297 | 289 | 318 | 1167 |
417 | Pumps | 204 | 177 | 197 | 221 | 365 | 1164 |
423 | Chemistry of Inorganic Compounds | 187 | 205 | 225 | 265 | 268 | 1150 |
341 | Coded Data Generation or Conversion | 141 | 235 | 319 | 224 | 230 | 1149 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 229 | 202 | 247 | 255 | 214 | 1147 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 111 | 175 | 298 | 314 | 245 | 1143 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 210 | 222 | 280 | 209 | 217 | 1138 |
148 | Metal Treatment | 205 | 182 | 236 | 257 | 254 | 1134 |
206 | Special Receptacle or Package | 166 | 163 | 245 | 275 | 266 | 1115 |
118 | Coating Apparatus | 200 | 202 | 215 | 219 | 270 | 1106 |
315 | Electric Lamp and Discharge Devices: Systems | 161 | 153 | 240 | 251 | 289 | 1094 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 215 | 161 | 246 | 222 | 239 | 1083 |
363 | Electric Power Conversion Systems | 131 | 188 | 220 | 294 | 246 | 1079 |
222 | Dispensing (apparatus and process) | 167 | 164 | 206 | 281 | 249 | 1067 |
372 | Coherent Light Generators | 184 | 181 | 245 | 226 | 223 | 1059 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 131 | 159 | 276 | 283 | 210 | 1059 |
451 | Abrading | 152 | 191 | 163 | 228 | 320 | 1054 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 147 | 158 | 223 | 291 | 229 | 1048 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 212 | 142 | 282 | 222 | 182 | 1040 |
297 | Chairs and Seats | 154 | 169 | 202 | 240 | 265 | 1030 |
192 | Clutches and Power-Stop Control | 143 | 184 | 183 | 257 | 255 | 1022 |
180 | Motor Vehicles | 166 | 106 | 211 | 251 | 254 | 988 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 131 | 136 | 178 | 243 | 252 | 940 |
053 | Package Making | 148 | 156 | 250 | 157 | 224 | 935 |
248 | Supports (e.g., for holding articles, etc.) | 133 | 132 | 206 | 205 | 258 | 934 |
414 | Material or Article Handling | 181 | 166 | 188 | 180 | 215 | 930 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 111 | 135 | 211 | 221 | 250 | 928 |
400 | Typewriting Machines | 165 | 148 | 202 | 206 | 205 | 926 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 160 | 142 | 197 | 176 | 248 | 923 |
015 | Brushing, Scrubbing, and General Cleaning | 137 | 153 | 190 | 205 | 226 | 911 |
165 | Heat Exchange | 150 | 152 | 175 | 219 | 210 | 906 |
084 | Music | 185 | 150 | 176 | 217 | 176 | 904 |
198 | Conveyors: Power-Driven | 141 | 130 | 176 | 219 | 220 | 886 |
333 | Wave Transmission Lines and Networks | 121 | 137 | 196 | 206 | 223 | 883 |
381 | Electrical Audio Signal Processing Systems and Devices | 145 | 156 | 245 | 153 | 175 | 874 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 103 | 176 | 195 | 239 | 150 | 863 |
271 | Sheet Feeding or Delivering | 134 | 146 | 138 | 218 | 223 | 859 |
343 | Communications: Radio Wave Antennas | 95 | 96 | 131 | 247 | 282 | 851 |
174 | Electricity: Conductors and Insulators | 152 | 121 | 195 | 156 | 224 | 848 |
713 | Support (Electrical Computers and Digital Processing Systems) | 82 | 97 | 187 | 229 | 237 | 832 |
296 | Land Vehicles: Bodies and Tops | 112 | 112 | 158 | 199 | 242 | 823 |
200 | Electricity: Circuit Makers and Breakers | 106 | 116 | 200 | 202 | 196 | 820 |
303 | Fluid-Pressure and Analogous Brake Systems | 149 | 140 | 159 | 174 | 194 | 816 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 158 | 158 | 150 | 176 | 163 | 805 |
384 | Bearings | 137 | 127 | 163 | 162 | 199 | 788 |
473 | Games Using Tangible Projectile | 122 | 126 | 222 | 159 | 142 | 771 |
477 | Interrelated Power Delivery Controls, Including Engine Control | 106 | 156 | 171 | 179 | 150 | 762 |
134 | Cleaning and Liquid Contact with Solids | 107 | 108 | 171 | 204 | 169 | 759 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 120 | 126 | 170 | 162 | 171 | 749 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 147 | 126 | 164 | 193 | 112 | 742 |
355 | Photocopying | 71 | 142 | 169 | 190 | 169 | 741 |
307 | Electrical Transmission or Interconnection Systems | 100 | 117 | 164 | 181 | 170 | 732 |
162 | Paper Making and Fiber Liberation | 127 | 154 | 159 | 139 | 152 | 731 |
220 | Receptacles | 124 | 127 | 128 | 182 | 170 | 731 |
188 | Brakes | 156 | 104 | 142 | 151 | 175 | 728 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 139 | 124 | 170 | 180 | 111 | 724 |
099 | Foods and Beverages: Apparatus | 108 | 151 | 138 | 174 | 151 | 722 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 134 | 103 | 146 | 185 | 142 | 710 |
378 | X-Ray or Gamma Ray Systems or Devices | 155 | 129 | 148 | 112 | 156 | 700 |
501 | Compositions: Ceramic | 112 | 131 | 140 | 173 | 139 | 695 |
436 | Chemistry: Analytical and Immunological Testing | 109 | 104 | 168 | 169 | 129 | 679 |
504 | Plant Protecting and Regulating Compositions | 126 | 128 | 135 | 126 | 147 | 662 |
330 | Amplifiers | 93 | 87 | 124 | 165 | 191 | 660 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 61 | 136 | 124 | 163 | 172 | 656 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 108 | 91 | 131 | 133 | 190 | 653 |
034 | Drying and Gas or Vapor Contact with Solids | 120 | 110 | 109 | 131 | 168 | 638 |
326 | Electronic Digital Logic Circuitry | 121 | 108 | 111 | 105 | 179 | 624 |
024 | Buckles, Buttons, Clasps, Etc. | 111 | 134 | 126 | 136 | 115 | 622 |
164 | Metal Founding | 100 | 124 | 144 | 146 | 107 | 621 |
323 | Electricity: Power Supply or Regulation Systems | 91 | 110 | 114 | 150 | 155 | 620 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 93 | 92 | 119 | 149 | 162 | 615 |
403 | Joints and Connections | 112 | 138 | 130 | 108 | 121 | 609 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 86 | 96 | 128 | 155 | 143 | 608 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 83 | 70 | 137 | 166 | 146 | 602 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 113 | 73 | 111 | 150 | 138 | 585 |
112 | Sewing | 94 | 97 | 134 | 136 | 114 | 575 |
241 | Solid Material Comminution or Disintegration | 121 | 99 | 124 | 125 | 105 | 574 |
083 | Cutting | 62 | 76 | 136 | 151 | 148 | 573 |
475 | Planetary Gear Transmission Systems or Components | 96 | 109 | 103 | 158 | 107 | 573 |
228 | Metal Fusion Bonding | 89 | 90 | 75 | 123 | 192 | 569 |
070 | Locks | 85 | 104 | 128 | 138 | 104 | 559 |
405 | Hydraulic and Earth Engineering | 107 | 79 | 143 | 113 | 104 | 546 |
433 | Dentistry | 70 | 85 | 124 | 136 | 131 | 546 |
251 | Valves and Valve Actuation | 65 | 65 | 110 | 134 | 160 | 534 |
285 | Pipe Joints or Couplings | 71 | 72 | 106 | 149 | 132 | 530 |
331 | Oscillators | 71 | 79 | 116 | 117 | 143 | 526 |
415 | Rotary Kinetic Fluid Motors or Pumps | 100 | 73 | 92 | 99 | 151 | 515 |
002 | Apparel | 63 | 88 | 103 | 128 | 123 | 505 |
065 | Glass Manufacturing | 55 | 105 | 123 | 120 | 99 | 502 |
030 | Cutlery | 82 | 108 | 93 | 112 | 101 | 496 |
277 | Seal for a Joint or Juncture | 98 | 109 | 76 | 97 | 114 | 494 |
057 | Textiles: Spinning, Twisting, and Twining | 92 | 85 | 124 | 99 | 90 | 490 |
418 | Rotary Expansible Chamber Devices | 98 | 74 | 87 | 64 | 163 | 486 |
482 | Exercise Devices | 91 | 84 | 112 | 91 | 107 | 485 |
244 | Aeronautics | 69 | 55 | 114 | 108 | 137 | 483 |
607 | Surgery: Light, Thermal, and Electrical Application | 79 | 77 | 116 | 93 | 116 | 481 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 57 | 63 | 112 | 116 | 129 | 477 |
216 | Etching a Substrate: Processes | 70 | 94 | 107 | 111 | 88 | 470 |
431 | Combustion | 80 | 52 | 106 | 118 | 108 | 464 |
016 | Miscellaneous Hardware | 84 | 70 | 89 | 91 | 127 | 461 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 40 | 51 | 92 | 159 | 117 | 459 |
366 | Agitating (e.g., of articles and materials) | 114 | 59 | 98 | 88 | 97 | 456 |
152 | Resilient Tires and Wheels | 66 | 85 | 88 | 87 | 121 | 447 |
474 | Endless Belt Power Transmission Systems or Components | 59 | 79 | 90 | 94 | 123 | 445 |
209 | Classifying, Separating, and Assorting Solids | 76 | 87 | 76 | 100 | 104 | 443 |
585 | Chemistry of Hydrocarbon Compounds | 68 | 62 | 103 | 118 | 89 | 440 |
138 | Pipes and Tubular Conduits | 46 | 51 | 84 | 107 | 149 | 437 |
033 | Geometrical Instruments | 78 | 68 | 77 | 73 | 137 | 433 |
004 | Baths, Closets, Sinks, and Spittoons | 47 | 64 | 91 | 134 | 91 | 427 |
005 | Beds | 81 | 85 | 87 | 81 | 92 | 426 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 83 | 75 | 55 | 106 | 100 | 419 |
119 | Animal Husbandry | 57 | 60 | 116 | 90 | 95 | 418 |
440 | Marine Propulsion | 70 | 53 | 78 | 91 | 126 | 418 |
036 | Boots, Shoes, and Leggings | 69 | 67 | 101 | 94 | 80 | 411 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 51 | 60 | 77 | 94 | 129 | 411 |
139 | Textiles: Weaving | 75 | 77 | 85 | 68 | 104 | 409 |
508 | Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions | 71 | 80 | 87 | 77 | 90 | 405 |
706 | DP: Artificial Intelligence (Data Processing) | 91 | 90 | 134 | 47 | 43 | 405 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 71 | 71 | 90 | 85 | 87 | 404 |
114 | Ships | 76 | 62 | 68 | 84 | 110 | 400 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 74 | 62 | 77 | 95 | 87 | 395 |
267 | Spring Devices | 71 | 67 | 75 | 92 | 86 | 391 |
380 | Cryptography | 59 | 66 | 93 | 66 | 107 | 391 |
368 | Horology: Time Measuring Systems or Devices | 72 | 67 | 85 | 77 | 86 | 387 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 54 | 63 | 92 | 83 | 93 | 385 |
312 | Supports: Cabinet Structure | 53 | 59 | 75 | 93 | 103 | 383 |
081 | Tools | 51 | 38 | 60 | 93 | 137 | 379 |
401 | Coating Implements with Material Supply | 32 | 32 | 66 | 133 | 114 | 377 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 62 | 65 | 73 | 83 | 86 | 369 |
503 | Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor | 80 | 84 | 73 | 76 | 56 | 369 |
049 | Movable or Removable Closures | 56 | 47 | 84 | 72 | 108 | 367 |
292 | Closure Fasteners | 69 | 59 | 69 | 82 | 88 | 367 |
273 | Amusement Devices: Games | 63 | 87 | 79 | 69 | 58 | 356 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 68 | 57 | 45 | 73 | 113 | 356 |
463 | Amusement Devices: Games | 27 | 56 | 78 | 81 | 101 | 343 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 64 | 53 | 68 | 89 | 68 | 342 |
066 | Textiles: Knitting | 70 | 48 | 51 | 65 | 107 | 341 |
132 | Toilet | 43 | 50 | 68 | 95 | 82 | 338 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 55 | 69 | 90 | 65 | 59 | 338 |
092 | Expansible Chamber Devices | 47 | 58 | 84 | 79 | 66 | 334 |
454 | Ventilation | 54 | 61 | 79 | 68 | 68 | 330 |
446 | Amusement Devices: Toys | 38 | 42 | 85 | 83 | 81 | 329 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 34 | 40 | 89 | 84 | 80 | 327 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 37 | 44 | 71 | 70 | 97 | 319 |
095 | Gas Separation: Processes | 43 | 36 | 79 | 83 | 76 | 317 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 50 | 47 | 76 | 75 | 69 | 317 |
175 | Boring or Penetrating the Earth | 56 | 44 | 70 | 59 | 86 | 315 |
126 | Stoves and Furnaces | 42 | 45 | 53 | 86 | 85 | 311 |
353 | Optics: Image Projectors | 48 | 57 | 71 | 57 | 77 | 310 |
091 | Motors: Expansible Chamber Type | 59 | 57 | 77 | 54 | 61 | 308 |
211 | Supports: Racks | 45 | 46 | 78 | 55 | 83 | 307 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 59 | 53 | 75 | 77 | 43 | 307 |
181 | Acoustics | 46 | 39 | 70 | 74 | 71 | 300 |
040 | Card, Picture, or Sign Exhibiting | 48 | 56 | 63 | 57 | 69 | 293 |
215 | Bottles and Jars | 48 | 46 | 76 | 61 | 58 | 289 |
725 | Interactive Video Distribution Systems | 45 | 40 | 78 | 73 | 52 | 288 |
068 | Textiles: Fluid Treating Apparatus | 36 | 51 | 78 | 77 | 43 | 285 |
136 | Batteries: Thermoelectric and Photoelectric | 45 | 40 | 42 | 65 | 90 | 282 |
336 | Inductor Devices | 43 | 24 | 65 | 67 | 83 | 282 |
408 | Cutting by Use of Rotating Axially Moving Tool | 41 | 43 | 63 | 86 | 49 | 282 |
055 | Gas Separation | 43 | 43 | 64 | 60 | 70 | 280 |
160 | Flexible or Portable Closure, Partition, or Panel | 54 | 58 | 44 | 50 | 72 | 278 |
056 | Harvesters | 42 | 29 | 64 | 74 | 68 | 277 |
100 | Presses | 55 | 58 | 67 | 52 | 41 | 273 |
110 | Furnaces | 44 | 63 | 61 | 50 | 51 | 269 |
432 | Heating | 28 | 39 | 68 | 74 | 60 | 269 |
096 | Gas Separation: Apparatus | 50 | 45 | 58 | 56 | 59 | 268 |
505 | Superconductor Technology: Apparatus, Material, Process | 81 | 50 | 47 | 50 | 39 | 267 |
374 | Thermal Measuring and Testing | 27 | 50 | 73 | 41 | 75 | 266 |
434 | Education and Demonstration | 45 | 35 | 66 | 60 | 58 | 264 |
409 | Gear Cutting, Milling, or Planing | 33 | 37 | 61 | 72 | 55 | 258 |
338 | Electrical Resistors | 37 | 36 | 51 | 68 | 63 | 255 |
294 | Handling: Hand and Hoist-Line Implements | 33 | 48 | 54 | 48 | 66 | 249 |
047 | Plant Husbandry | 41 | 33 | 38 | 68 | 67 | 247 |
227 | Elongated-Member-Driving Apparatus | 30 | 48 | 58 | 42 | 69 | 247 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 32 | 27 | 49 | 71 | 64 | 243 |
208 | Mineral Oils: Processes and Products | 28 | 27 | 47 | 80 | 60 | 242 |
224 | Package and Article Carriers | 46 | 45 | 54 | 57 | 39 | 241 |
108 | Horizontally Supported Planar Surfaces | 42 | 42 | 55 | 45 | 56 | 240 |
102 | Ammunition and Explosives | 61 | 49 | 48 | 43 | 37 | 238 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 59 | 30 | 62 | 44 | 39 | 234 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 45 | 39 | 52 | 47 | 46 | 229 |
420 | Alloys or Metallic Compositions | 49 | 35 | 51 | 53 | 41 | 229 |
131 | Tobacco | 48 | 48 | 57 | 28 | 45 | 226 |
144 | Woodworking | 29 | 30 | 40 | 65 | 61 | 225 |
266 | Metallurgical Apparatus | 40 | 47 | 36 | 51 | 49 | 223 |
407 | Cutters, for Shaping | 24 | 29 | 55 | 57 | 58 | 223 |
043 | Fishing, Trapping, and Vermin Destroying | 46 | 28 | 27 | 62 | 58 | 221 |
173 | Tool Driving or Impacting | 25 | 19 | 46 | 56 | 68 | 214 |
089 | Ordnance | 31 | 53 | 47 | 49 | 29 | 209 |
419 | Powder Metallurgy Processes | 44 | 44 | 28 | 51 | 39 | 206 |
019 | Textiles: Fiber Preparation | 49 | 43 | 35 | 32 | 46 | 205 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 32 | 34 | 36 | 46 | 54 | 202 |
602 | Surgery: Splint, Brace, or Bandage | 22 | 30 | 50 | 45 | 55 | 202 |
261 | Gas and Liquid Contact Apparatus | 37 | 41 | 33 | 41 | 49 | 201 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 17 | 39 | 57 | 54 | 30 | 197 |
135 | Tent, Canopy, Umbrella, or Cane | 38 | 27 | 45 | 34 | 50 | 194 |
221 | Article Dispensing | 33 | 15 | 35 | 42 | 69 | 194 |
452 | Butchering | 33 | 29 | 47 | 40 | 45 | 194 |
218 | High-Voltage Switches with Arc Preventing or Extinguishing Devices | 37 | 22 | 55 | 41 | 37 | 192 |
601 | Surgery: Kinesitherapy | 32 | 37 | 49 | 35 | 38 | 191 |
172 | Earth Working | 34 | 30 | 47 | 37 | 41 | 189 |
404 | Road Structure, Process, or Apparatus | 40 | 28 | 35 | 44 | 37 | 184 |
044 | Fuel and Related Compositions | 31 | 21 | 29 | 51 | 50 | 182 |
301 | Land Vehicles: Wheels and Axles | 25 | 19 | 24 | 45 | 63 | 176 |
104 | Railways | 43 | 48 | 34 | 18 | 32 | 175 |
177 | Weighing Scales | 19 | 23 | 64 | 40 | 29 | 175 |
194 | Check-Actuated Control Mechanisms | 51 | 22 | 27 | 38 | 36 | 174 |
392 | Electric Resistance Heating Devices | 18 | 25 | 28 | 49 | 53 | 173 |
037 | Excavating | 30 | 28 | 45 | 33 | 31 | 167 |
182 | Fire Escape, Ladder, or Scaffold | 18 | 22 | 41 | 49 | 32 | 162 |
269 | Work Holders | 20 | 14 | 36 | 45 | 46 | 161 |
122 | Liquid Heaters and Vaporizers | 23 | 13 | 37 | 49 | 36 | 158 |
236 | Automatic Temperature and Humidity Regulation | 16 | 16 | 34 | 49 | 40 | 155 |
373 | Industrial Electric Heating Furnaces | 37 | 21 | 27 | 41 | 29 | 155 |
270 | Sheet-Material Associating | 32 | 33 | 42 | 21 | 23 | 151 |
588 | Hazardous or Toxic Waste Destruction or Containment | 38 | 22 | 36 | 30 | 25 | 151 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 25 | 27 | 31 | 29 | 35 | 147 |
028 | Textiles: Manufacturing | 22 | 35 | 27 | 28 | 34 | 146 |
226 | Advancing Material of Indeterminate Length | 19 | 25 | 46 | 31 | 22 | 143 |
082 | Turning (e.g., for metal working) | 18 | 25 | 27 | 34 | 37 | 141 |
169 | Fire Extinguishers | 22 | 21 | 34 | 31 | 31 | 139 |
322 | Electricity: Single Generator Systems | 25 | 29 | 39 | 19 | 25 | 137 |
203 | Distillation: Processes, Separatory | 25 | 29 | 30 | 36 | 16 | 136 |
290 | Prime-Mover Dynamo Plants | 9 | 19 | 36 | 29 | 42 | 135 |
105 | Railway Rolling Stock | 23 | 25 | 31 | 26 | 22 | 127 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 26 | 20 | 29 | 26 | 25 | 126 |
237 | Heating Systems | 15 | 15 | 34 | 29 | 31 | 124 |
441 | Buoys, Rafts, and Aquatic Devices | 19 | 22 | 26 | 20 | 33 | 120 |
492 | Roll or Roller | 16 | 22 | 35 | 25 | 21 | 119 |
125 | Stone Working | 9 | 19 | 22 | 23 | 41 | 114 |
383 | Flexible Bags | 14 | 16 | 27 | 25 | 26 | 108 |
483 | Tool Changing | 11 | 18 | 23 | 29 | 27 | 108 |
071 | Chemistry: Fertilizers | 18 | 31 | 25 | 14 | 19 | 107 |
042 | Firearms | 17 | 24 | 25 | 24 | 16 | 106 |
329 | Demodulators | 16 | 19 | 24 | 21 | 25 | 105 |
184 | Lubrication | 16 | 15 | 24 | 25 | 23 | 103 |
283 | Printed Matter | 15 | 18 | 14 | 26 | 28 | 101 |
332 | Modulators | 22 | 14 | 27 | 18 | 18 | 99 |
494 | Imperforate Bowl: Centrifugal Separators | 14 | 16 | 25 | 21 | 22 | 98 |
038 | Textiles: Ironing or Smoothing | 14 | 24 | 13 | 17 | 27 | 95 |
476 | Friction Gear Transmission Systems or Components | 13 | 12 | 11 | 21 | 34 | 91 |
279 | Chucks or Sockets | 9 | 15 | 16 | 29 | 20 | 89 |
178 | Telegraphy | 28 | 27 | 16 | 13 | 3 | 87 |
299 | Mining or In Situ Disintegration of Hard Material | 19 | 21 | 9 | 18 | 20 | 87 |
212 | Traversing Hoists | 8 | 20 | 27 | 10 | 21 | 86 |
190 | Trunks and Hand-Carried Luggage | 17 | 15 | 21 | 14 | 15 | 82 |
223 | Apparel Apparatus | 10 | 14 | 21 | 17 | 20 | 82 |
472 | Amusement Devices | 15 | 8 | 21 | 18 | 15 | 77 |
014 | Bridges | 24 | 12 | 16 | 16 | 8 | 76 |
051 | Abrasive Tool Making Process, Material, or Composition | 11 | 21 | 10 | 20 | 14 | 76 |
149 | Explosive and Thermic Compositions or Charges | 26 | 11 | 13 | 8 | 17 | 75 |
140 | Wireworking | 12 | 16 | 15 | 17 | 13 | 73 |
281 | Books, Strips, and Leaves | 13 | 9 | 14 | 23 | 14 | 73 |
412 | Bookbinding: Process and Apparatus | 10 | 11 | 9 | 18 | 22 | 70 |
249 | Static Molds | 11 | 16 | 15 | 13 | 13 | 68 |
402 | Binder Device Releasably Engaging Aperture or Notch of Sheet | 5 | 14 | 21 | 17 | 11 | 68 |
406 | Conveyors: Fluid Current | 17 | 11 | 12 | 5 | 23 | 68 |
059 | Chain, Staple, and Horseshoe Making | 7 | 9 | 17 | 18 | 14 | 65 |
202 | Distillation: Apparatus | 7 | 12 | 15 | 22 | 9 | 65 |
048 | Gas: Heating and Illuminating | 8 | 15 | 23 | 14 | 4 | 64 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 8 | 16 | 15 | 12 | 12 | 63 |
512 | Perfume Compositions | 13 | 10 | 15 | 9 | 15 | 62 |
410 | Freight Accommodation On Freight Carrier | 9 | 2 | 13 | 19 | 18 | 61 |
453 | Coin Handling | 11 | 9 | 9 | 15 | 17 | 61 |
111 | Planting | 13 | 8 | 9 | 14 | 16 | 60 |
127 | Sugar, Starch, and Carbohydrates | 9 | 6 | 9 | 25 | 11 | 60 |
256 | Fences | 11 | 14 | 8 | 11 | 15 | 59 |
063 | Jewelry | 13 | 13 | 12 | 8 | 11 | 57 |
001 | ** Classification Undetermined ** | 1 | 3 | 20 | 12 | 19 | 55 |
124 | Mechanical Guns and Projectors | 6 | 18 | 9 | 10 | 12 | 55 |
116 | Signals and Indicators | 10 | 11 | 8 | 9 | 15 | 53 |
238 | Railways: Surface Track | 9 | 13 | 17 | 5 | 9 | 53 |
225 | Severing by Tearing or Breaking | 8 | 11 | 9 | 12 | 12 | 52 |
293 | Vehicle Fenders | 3 | 6 | 16 | 11 | 16 | 52 |
460 | Crop Threshing or Separating | 12 | 5 | 11 | 10 | 14 | 52 |
191 | Electricity: Transmission To Vehicles | 7 | 10 | 11 | 12 | 8 | 48 |
305 | Wheel Substitutes for Land Vehicles | 4 | 8 | 14 | 12 | 10 | 48 |
352 | Optics: Motion Pictures | 8 | 10 | 6 | 9 | 15 | 48 |
026 | Textiles: Cloth Finishing | 10 | 7 | 13 | 12 | 4 | 46 |
388 | Electricity: Motor Control Systems | 12 | 8 | 6 | 9 | 10 | 45 |
450 | Foundation Garments | 2 | 4 | 9 | 12 | 18 | 45 |
076 | Metal Tools and Implements, Making | 8 | 9 | 7 | 8 | 12 | 44 |
246 | Railway Switches and Signals | 10 | 9 | 11 | 6 | 8 | 44 |
007 | Compound Hand Tools | 6 | 8 | 6 | 8 | 13 | 41 |
346 | Recorders | 14 | 8 | 8 | 6 | 3 | 39 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 3 | 4 | 11 | 8 | 12 | 38 |
159 | Concentrating Evaporators | 7 | 3 | 9 | 7 | 7 | 33 |
023 | Chemistry: Physical Processes | 4 | 4 | 7 | 6 | 11 | 32 |
470 | Threaded, Headed Fastener, or Washer Making: Process and Apparatus | 4 | 9 | 8 | 4 | 5 | 30 |
012 | Boot and Shoe Making | 3 | 6 | 5 | 9 | 4 | 27 |
300 | Brush, Broom, and Mop Making | 6 | 6 | 6 | 3 | 5 | 26 |
413 | Sheet Metal Container Making | 2 | 4 | 6 | 11 | 2 | 25 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 3 | 2 | 1 | 12 | 6 | 24 |
054 | Harness (for animals) | 6 | 2 | 6 | 3 | 5 | 22 |
201 | Distillation: Processes, Thermolytic | 4 | 9 | 5 | 0 | 3 | 21 |
109 | Safes, Bank Protection, or a Related Device | 2 | 4 | 8 | 1 | 2 | 17 |
186 | Merchandising | 4 | 3 | 3 | 5 | 2 | 17 |
232 | Deposit and Collection Receptacles | 4 | 0 | 3 | 4 | 6 | 17 |
150 | Purses, Wallets, and Protective Covers | 1 | 2 | 2 | 2 | 9 | 16 |
027 | Undertaking | 0 | 4 | 3 | 5 | 3 | 15 |
086 | Ammunition and Explosive-Charge Making | 2 | 4 | 6 | 1 | 2 | 15 |
087 | Textiles: Braiding, Netting, and Lace Making | 3 | 0 | 4 | 4 | 2 | 13 |
157 | Wheelwright Machines | 1 | 3 | 3 | 0 | 5 | 12 |
213 | Railway Draft Appliances | 8 | 2 | 1 | 0 | 1 | 12 |
295 | Railway Wheels and Axles | 3 | 2 | 0 | 6 | 1 | 12 |
168 | Farriery | 2 | 1 | 2 | 3 | 3 | 11 |
171 | Unearthing Plants or Buried Objects | 2 | 3 | 3 | 2 | 1 | 11 |
449 | Bee Culture (propagating, raising, caring for bees) | 1 | 5 | 1 | 2 | 2 | 11 |
298 | Land Vehicles: Dumping | 4 | 1 | 2 | 0 | 2 | 9 |
196 | Mineral Oils: Apparatus | 1 | 2 | 2 | 1 | 2 | 8 |
069 | Leather Manufactures | 0 | 3 | 1 | 1 | 2 | 7 |
142 | Wood Turning | 1 | 1 | 1 | 3 | 0 | 6 |
185 | Motors: Spring, Weight, or Animal Powered | 0 | 2 | 2 | 1 | 0 | 5 |
334 | Tuners | 0 | 0 | 4 | 1 | 0 | 5 |
217 | Wooden Receptacles | 0 | 0 | 2 | 1 | 1 | 4 |
260 | Chemistry of Carbon Compounds | 0 | 0 | 2 | 0 | 2 | 4 |
462 | Books, Strips, and Leaves for Manifolding | 0 | 1 | 0 | 1 | 1 | 3 |
231 | Whips and Whip Apparatus | 0 | 1 | 0 | 0 | 1 | 2 |
289 | Knots and Knot Tying | 1 | 0 | 1 | 0 | 0 | 2 |
163 | Needle and Pin Making | 1 | 0 | 0 | 0 | 0 | 1 |
ALL | ALL CLASSES | 48541 | 50276 | 67228 | 69580 | 72425 | 308050 |
U.S. Patent and Trademark Office
Information Products Division - TAF Branch
PK3- Suite 441
Washington, DC 20231 tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of TAF reports from : ftp.uspto.gov/pub/taf/