Class | Class Title | Number of Patents in 1990 |
Number of Patents in 2000 |
Number of University Patents in 1990 |
Number of University Patents in 2000 |
University Activity Index for 1990 |
University Activity Index for 2000 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 186 | 556 | 31 | 106 | 12.742 | 9.727 |
435 | Chemistry: Molecular Biology and Microbiology | 930 | 3498 | 107 | 569 | 8.796 | 8.299 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 12 | 546 | 0 | 78 | 0.000 | 7.288 |
436 | Chemistry: Analytical and Immunological Testing | 204 | 381 | 9 | 42 | 3.373 | 5.624 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 3363 | 6730 | 191 | 649 | 4.342 | 4.920 |
419 | Powder Metallurgy Processes | 93 | 75 | 1 | 6 | 0.822 | 4.082 |
216 | Etching a Substrate: Processes | 136 | 214 | 5 | 14 | 2.811 | 3.338 |
588 | Hazardous or Toxic Waste Destruction or Containment | 33 | 67 | 1 | 4 | 2.317 | 3.046 |
532 | Organic Compounds (includes Classes 532-570) | 2977 | 3053 | 95 | 180 | 2.440 | 3.008 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 324 | 333 | 13 | 18 | 3.067 | 2.758 |
048 | Gas: Heating and Illuminating | 62 | 19 | 0 | 1 | 0.000 | 2.685 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 16 | 38 | 0 | 2 | 0.000 | 2.685 |
372 | Coherent Light Generators | 404 | 469 | 21 | 24 | 3.974 | 2.611 |
356 | Optics: Measuring and Testing | 520 | 1026 | 24 | 52 | 3.529 | 2.586 |
256 | Fences | 47 | 62 | 1 | 3 | 1.627 | 2.469 |
127 | Sugar, Starch, and Carbohydrates | 19 | 21 | 0 | 1 | 0.000 | 2.429 |
136 | Batteries: Thermoelectric and Photoelectric | 56 | 171 | 2 | 8 | 2.730 | 2.387 |
128 | Surgery (includes Class 600) | 1039 | 2358 | 53 | 107 | 3.900 | 2.315 |
378 | X-Ray or Gamma Ray Systems or Devices | 263 | 380 | 8 | 17 | 2.326 | 2.282 |
204 | Chemistry: Electrical and Wave Energy | 465 | 693 | 12 | 29 | 1.973 | 2.135 |
202 | Distillation: Apparatus | 38 | 24 | 0 | 1 | 0.000 | 2.126 |
505 | Superconductor Technology: Apparatus, Material, Process | 164 | 72 | 21 | 3 | 9.789 | 2.126 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 101 | 227 | 2 | 9 | 1.514 | 2.023 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 44 | 283 | 0 | 11 | 0.000 | 1.983 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 407 | 479 | 5 | 18 | 0.939 | 1.917 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 329 | 192 | 3 | 7 | 0.697 | 1.860 |
427 | Coating Processes | 606 | 1101 | 19 | 38 | 2.397 | 1.761 |
250 | Radiant Energy | 1257 | 1055 | 32 | 36 | 1.946 | 1.741 |
374 | Thermal Measuring and Testing | 94 | 176 | 2 | 6 | 1.627 | 1.739 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 403 | 599 | 9 | 20 | 1.707 | 1.703 |
044 | Fuel and Related Compositions | 84 | 120 | 2 | 4 | 1.820 | 1.701 |
607 | Surgery: Light, Thermal, and Electrical Application | 214 | 513 | 7 | 17 | 2.501 | 1.691 |
096 | Gas Separation: Apparatus | 125 | 126 | 1 | 4 | 0.612 | 1.620 |
423 | Chemistry of Inorganic Compounds | 516 | 475 | 15 | 15 | 2.222 | 1.611 |
014 | Bridges | 31 | 32 | 0 | 1 | 0.000 | 1.594 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 69 | 66 | 1 | 2 | 1.108 | 1.546 |
073 | Measuring and Testing | 1198 | 1513 | 22 | 45 | 1.404 | 1.517 |
359 | Optics: Systems (Including Communication) and Elements | 929 | 1950 | 16 | 56 | 1.317 | 1.465 |
434 | Education and Demonstration | 132 | 287 | 2 | 8 | 1.158 | 1.422 |
071 | Chemistry: Fertilizers | 31 | 38 | 1 | 1 | 2.466 | 1.343 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 157 | 193 | 1 | 5 | 0.487 | 1.322 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 170 | 311 | 2 | 8 | 0.899 | 1.312 |
210 | Liquid Purification or Separation | 1016 | 1168 | 16 | 30 | 1.204 | 1.310 |
385 | Optical Waveguides | 537 | 858 | 11 | 22 | 1.566 | 1.308 |
324 | Electricity: Measuring and Testing | 855 | 1171 | 30 | 29 | 2.682 | 1.263 |
095 | Gas Separation: Processes | 149 | 205 | 3 | 5 | 1.539 | 1.244 |
501 | Compositions: Ceramic | 255 | 205 | 8 | 5 | 2.398 | 1.244 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 806 | 973 | 11 | 23 | 1.043 | 1.206 |
313 | Electric Lamp and Discharge Devices | 336 | 555 | 0 | 13 | 0.000 | 1.195 |
065 | Glass Manufacturing | 219 | 176 | 3 | 4 | 1.047 | 1.160 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 263 | 668 | 2 | 15 | 0.581 | 1.146 |
051 | Abrasive Tool Making Process, Material, or Composition | 57 | 45 | 0 | 1 | 0.000 | 1.134 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 2844 | 3346 | 36 | 72 | 0.968 | 1.098 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 274 | 570 | 10 | 12 | 2.790 | 1.074 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 172 | 239 | 0 | 5 | 0.000 | 1.067 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 122 | 487 | 2 | 10 | 1.253 | 1.048 |
322 | Electricity: Single Generator Systems | 32 | 49 | 1 | 1 | 2.389 | 1.041 |
406 | Conveyors: Fluid Current | 57 | 49 | 1 | 1 | 1.341 | 1.041 |
494 | Imperforate Bowl: Centrifugal Separators | 42 | 50 | 0 | 1 | 0.000 | 1.020 |
601 | Surgery: Kinesitherapy | 126 | 102 | 6 | 2 | 3.641 | 1.000 |
164 | Metal Founding | 249 | 162 | 2 | 3 | 0.614 | 0.945 |
252 | Compositions | 404 | 605 | 1 | 11 | 0.189 | 0.928 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 140 | 221 | 0 | 4 | 0.000 | 0.923 |
452 | Butchering | 96 | 111 | 0 | 2 | 0.000 | 0.919 |
426 | Food or Edible Material: Processes, Compositions, and Products | 707 | 909 | 12 | 16 | 1.298 | 0.898 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 234 | 229 | 2 | 4 | 0.653 | 0.891 |
428 | Stock Material or Miscellaneous Articles | 1784 | 2740 | 17 | 47 | 0.729 | 0.875 |
604 | Surgery (Medicators and Receptors) | 815 | 1177 | 19 | 20 | 1.782 | 0.867 |
118 | Coating Apparatus | 244 | 552 | 0 | 9 | 0.000 | 0.832 |
706 | DP: Artificial Intelligence (Data Processing) | 75 | 127 | 3 | 2 | 3.058 | 0.803 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 259 | 516 | 7 | 8 | 2.066 | 0.791 |
392 | Electric Resistance Heating Devices | 60 | 131 | 0 | 2 | 0.000 | 0.779 |
404 | Road Structure, Process, or Apparatus | 119 | 140 | 1 | 2 | 0.642 | 0.729 |
405 | Hydraulic and Earth Engineering | 351 | 288 | 1 | 4 | 0.218 | 0.709 |
382 | Image Analysis | 289 | 1233 | 8 | 17 | 2.116 | 0.703 |
209 | Classifying, Separating, and Assorting Solids | 187 | 219 | 4 | 3 | 1.635 | 0.699 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 48 | 73 | 1 | 1 | 1.593 | 0.699 |
606 | Surgery (instruments) | 421 | 1619 | 14 | 22 | 2.542 | 0.693 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 166 | 529 | 2 | 7 | 0.921 | 0.675 |
380 | Cryptography | 108 | 228 | 1 | 3 | 0.708 | 0.671 |
504 | Plant Protecting and Regulating Compositions | 331 | 229 | 7 | 3 | 1.617 | 0.668 |
403 | Joints and Connections | 257 | 241 | 1 | 3 | 0.297 | 0.635 |
060 | Power Plants | 520 | 732 | 1 | 9 | 0.147 | 0.627 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 198 | 82 | 1 | 1 | 0.386 | 0.622 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 331 | 820 | 2 | 10 | 0.462 | 0.622 |
310 | Electrical Generator or Motor Structure | 438 | 905 | 3 | 11 | 0.524 | 0.620 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 73 | 165 | 0 | 2 | 0.000 | 0.618 |
072 | Metal Deforming | 376 | 435 | 0 | 5 | 0.000 | 0.586 |
244 | Aeronautics | 247 | 435 | 0 | 5 | 0.000 | 0.586 |
110 | Furnaces | 153 | 90 | 0 | 1 | 0.000 | 0.567 |
315 | Electric Lamp and Discharge Devices: Systems | 408 | 541 | 1 | 6 | 0.187 | 0.566 |
433 | Dentistry | 208 | 363 | 5 | 4 | 1.838 | 0.562 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 16 | 366 | 0 | 4 | 0.000 | 0.558 |
341 | Coded Data Generation or Conversion | 284 | 458 | 5 | 5 | 1.346 | 0.557 |
266 | Metallurgical Apparatus | 108 | 92 | 0 | 1 | 0.000 | 0.555 |
349 | Liquid Crystal Cells, Elements and Systems | 174 | 652 | 2 | 7 | 0.879 | 0.548 |
508 | Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions | 177 | 188 | 0 | 2 | 0.000 | 0.543 |
148 | Metal Treatment | 310 | 399 | 3 | 4 | 0.740 | 0.511 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 949 | 2703 | 20 | 27 | 1.611 | 0.510 |
353 | Optics: Image Projectors | 61 | 100 | 0 | 1 | 0.000 | 0.510 |
343 | Communications: Radio Wave Antennas | 170 | 604 | 1 | 6 | 0.450 | 0.507 |
366 | Agitating (e.g., of articles and materials) | 190 | 203 | 0 | 2 | 0.000 | 0.503 |
338 | Electrical Resistors | 112 | 102 | 3 | 1 | 2.048 | 0.500 |
208 | Mineral Oils: Processes and Products | 293 | 206 | 0 | 2 | 0.000 | 0.495 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 76 | 104 | 0 | 1 | 0.000 | 0.491 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 391 | 639 | 1 | 6 | 0.196 | 0.479 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 419 | 2117 | 1 | 19 | 0.182 | 0.458 |
417 | Pumps | 347 | 677 | 1 | 6 | 0.220 | 0.452 |
180 | Motor Vehicles | 351 | 454 | 1 | 4 | 0.218 | 0.450 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 302 | 460 | 2 | 4 | 0.506 | 0.444 |
585 | Chemistry of Hydrocarbon Compounds | 265 | 231 | 3 | 2 | 0.865 | 0.442 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 109 | 235 | 0 | 2 | 0.000 | 0.434 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 39 | 238 | 1 | 2 | 1.960 | 0.429 |
102 | Ammunition and Explosives | 209 | 121 | 0 | 1 | 0.000 | 0.422 |
037 | Excavating | 73 | 122 | 0 | 1 | 0.000 | 0.418 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 263 | 494 | 5 | 4 | 1.453 | 0.413 |
084 | Music | 251 | 379 | 0 | 3 | 0.000 | 0.404 |
277 | Seal for a Joint or Juncture | 120 | 258 | 2 | 2 | 1.274 | 0.395 |
144 | Woodworking | 120 | 131 | 0 | 1 | 0.000 | 0.389 |
172 | Earth Working | 105 | 131 | 0 | 1 | 0.000 | 0.389 |
326 | Electronic Digital Logic Circuitry | 217 | 532 | 2 | 4 | 0.705 | 0.384 |
331 | Oscillators | 150 | 266 | 0 | 2 | 0.000 | 0.384 |
438 | Semiconductor Device Manufacturing: Process | 600 | 4459 | 9 | 33 | 1.147 | 0.378 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 77 | 1351 | 1 | 10 | 0.993 | 0.378 |
139 | Textiles: Weaving | 127 | 137 | 0 | 1 | 0.000 | 0.372 |
415 | Rotary Kinetic Fluid Motors or Pumps | 170 | 275 | 0 | 2 | 0.000 | 0.371 |
714 | Error Detection/Correction and Fault Detection/Recovery | 294 | 982 | 2 | 7 | 0.520 | 0.364 |
062 | Refrigeration | 570 | 879 | 5 | 6 | 0.671 | 0.348 |
375 | Pulse or Digital Communications | 342 | 1328 | 4 | 9 | 0.894 | 0.346 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 245 | 297 | 5 | 2 | 1.560 | 0.344 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 1164 | 1795 | 4 | 12 | 0.263 | 0.341 |
221 | Article Dispensing | 96 | 152 | 0 | 1 | 0.000 | 0.336 |
370 | Multiplex Communications | 398 | 1821 | 3 | 12 | 0.576 | 0.336 |
725 | Interactive Video Distribution Systems | 33 | 154 | 0 | 1 | 0.000 | 0.331 |
083 | Cutting | 259 | 313 | 0 | 2 | 0.000 | 0.326 |
307 | Electrical Transmission or Interconnection Systems | 94 | 327 | 0 | 2 | 0.000 | 0.312 |
219 | Electric Heating | 740 | 1158 | 3 | 7 | 0.310 | 0.308 |
114 | Ships | 281 | 334 | 0 | 2 | 0.000 | 0.306 |
200 | Electricity: Circuit Makers and Breakers | 276 | 342 | 0 | 2 | 0.000 | 0.298 |
454 | Ventilation | 106 | 171 | 0 | 1 | 0.000 | 0.298 |
174 | Electricity: Conductors and Insulators | 222 | 516 | 1 | 3 | 0.344 | 0.297 |
034 | Drying and Gas or Vapor Contact with Solids | 152 | 345 | 0 | 2 | 0.000 | 0.296 |
348 | Television | 720 | 1035 | 3 | 6 | 0.319 | 0.296 |
119 | Animal Husbandry | 256 | 355 | 5 | 2 | 1.493 | 0.287 |
333 | Wave Transmission Lines and Networks | 185 | 359 | 2 | 2 | 0.826 | 0.284 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 32 | 361 | 0 | 2 | 0.000 | 0.283 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 99 | 725 | 0 | 4 | 0.000 | 0.281 |
165 | Heat Exchange | 318 | 368 | 3 | 2 | 0.721 | 0.277 |
474 | Endless Belt Power Transmission Systems or Components | 186 | 184 | 0 | 1 | 0.000 | 0.277 |
713 | Support (Electrical Computers and Digital Processing Systems) | 84 | 745 | 1 | 4 | 0.910 | 0.274 |
108 | Horizontally Supported Planar Surfaces | 89 | 190 | 0 | 1 | 0.000 | 0.269 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 402 | 384 | 2 | 2 | 0.380 | 0.266 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 224 | 199 | 0 | 1 | 0.000 | 0.256 |
482 | Exercise Devices | 293 | 415 | 3 | 2 | 0.783 | 0.246 |
340 | Communications: Electrical | 715 | 1456 | 2 | 7 | 0.214 | 0.245 |
440 | Marine Propulsion | 165 | 210 | 0 | 1 | 0.000 | 0.243 |
106 | Compositions: Coating or Plastic | 261 | 428 | 2 | 2 | 0.586 | 0.238 |
126 | Stoves and Furnaces | 239 | 223 | 1 | 1 | 0.320 | 0.229 |
355 | Photocopying | 292 | 226 | 0 | 1 | 0.000 | 0.226 |
363 | Electric Power Conversion Systems | 230 | 454 | 2 | 2 | 0.665 | 0.225 |
016 | Miscellaneous Hardware | 119 | 228 | 0 | 1 | 0.000 | 0.224 |
431 | Combustion | 167 | 233 | 1 | 1 | 0.458 | 0.219 |
047 | Plant Husbandry | 139 | 236 | 0 | 1 | 0.000 | 0.216 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 174 | 251 | 0 | 1 | 0.000 | 0.203 |
052 | Static Structures (e.g., Buildings) | 711 | 1013 | 0 | 4 | 0.000 | 0.201 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 762 | 1058 | 5 | 4 | 0.502 | 0.193 |
285 | Pipe Joints or Couplings | 255 | 285 | 0 | 1 | 0.000 | 0.179 |
414 | Material or Article Handling | 488 | 571 | 2 | 2 | 0.313 | 0.179 |
188 | Brakes | 196 | 294 | 0 | 1 | 0.000 | 0.174 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 151 | 886 | 3 | 3 | 1.519 | 0.173 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 375 | 1218 | 2 | 4 | 0.408 | 0.168 |
360 | Dynamic Magnetic Information Storage or Retrieval | 591 | 1213 | 0 | 4 | 0.000 | 0.168 |
323 | Electricity: Power Supply or Regulation Systems | 130 | 306 | 0 | 1 | 0.000 | 0.167 |
029 | Metal Working | 834 | 1259 | 3 | 4 | 0.275 | 0.162 |
365 | Static Information Storage and Retrieval | 463 | 1913 | 3 | 6 | 0.495 | 0.160 |
004 | Baths, Closets, Sinks, and Spittoons | 272 | 327 | 0 | 1 | 0.000 | 0.156 |
099 | Foods and Beverages: Apparatus | 218 | 332 | 0 | 1 | 0.000 | 0.154 |
005 | Beds | 295 | 354 | 1 | 1 | 0.259 | 0.144 |
192 | Clutches and Power-Stop Control | 303 | 358 | 0 | 1 | 0.000 | 0.143 |
381 | Electrical Audio Signal Processing Systems and Devices | 165 | 361 | 2 | 1 | 0.927 | 0.141 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 102 | 1100 | 0 | 3 | 0.000 | 0.139 |
228 | Metal Fusion Bonding | 196 | 370 | 1 | 1 | 0.390 | 0.138 |
101 | Printing | 264 | 429 | 0 | 1 | 0.000 | 0.119 |
134 | Cleaning and Liquid Contact with Solids | 205 | 436 | 1 | 1 | 0.373 | 0.117 |
137 | Fluid Handling | 675 | 942 | 0 | 2 | 0.000 | 0.108 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 153 | 1010 | 0 | 2 | 0.000 | 0.101 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 377 | 511 | 2 | 1 | 0.406 | 0.100 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 222 | 520 | 0 | 1 | 0.000 | 0.098 |
242 | Winding, Tensioning, or Guiding | 447 | 528 | 0 | 1 | 0.000 | 0.097 |
473 | Games Using Tangible Projectile | 405 | 561 | 1 | 1 | 0.189 | 0.091 |
002 | Apparel | 237 | 565 | 0 | 1 | 0.000 | 0.090 |
015 | Brushing, Scrubbing, and General Cleaning | 336 | 614 | 0 | 1 | 0.000 | 0.083 |
074 | Machine Element or Mechanism | 500 | 625 | 2 | 1 | 0.306 | 0.082 |
318 | Electricity: Motive Power Systems | 442 | 631 | 0 | 1 | 0.000 | 0.081 |
455 | Telecommunications | 250 | 1954 | 1 | 3 | 0.306 | 0.078 |
396 | Photography | 454 | 666 | 0 | 1 | 0.000 | 0.077 |
361 | Electricity: Electrical Systems and Devices | 655 | 1385 | 3 | 2 | 0.350 | 0.074 |
123 | Internal-Combustion Engines | 1112 | 1394 | 5 | 2 | 0.344 | 0.073 |
347 | Incremental Printing of Symbolic Information | 432 | 1412 | 0 | 2 | 0.000 | 0.072 |
206 | Special Receptacle or Package | 611 | 802 | 3 | 1 | 0.375 | 0.064 |
362 | Illumination | 461 | 877 | 0 | 1 | 0.000 | 0.058 |
369 | Dynamic Information Storage or Retrieval | 303 | 888 | 0 | 1 | 0.000 | 0.057 |
439 | Electrical Connectors | 924 | 2240 | 0 | 2 | 0.000 | 0.046 |
280 | Land Vehicles | 675 | 1388 | 0 | 1 | 0.000 | 0.037 |
001 | ** Classification Undetermined ** | 2 | 18 | 1 | 0 | 38.225 | 0.000 |
007 | Compound Hand Tools | 21 | 41 | 0 | 0 | 0.000 | 0.000 |
012 | Boot and Shoe Making | 21 | 6 | 0 | 0 | 0.000 | 0.000 |
019 | Textiles: Fiber Preparation | 87 | 58 | 0 | 0 | 0.000 | 0.000 |
023 | Chemistry: Physical Processes | 11 | 14 | 0 | 0 | 0.000 | 0.000 |
024 | Buckles, Buttons, Clasps, Etc. | 256 | 276 | 0 | 0 | 0.000 | 0.000 |
026 | Textiles: Cloth Finishing | 28 | 14 | 0 | 0 | 0.000 | 0.000 |
027 | Undertaking | 15 | 23 | 1 | 0 | 5.097 | 0.000 |
028 | Textiles: Manufacturing | 76 | 54 | 0 | 0 | 0.000 | 0.000 |
030 | Cutlery | 284 | 289 | 0 | 0 | 0.000 | 0.000 |
033 | Geometrical Instruments | 373 | 328 | 1 | 0 | 0.205 | 0.000 |
036 | Boots, Shoes, and Leggings | 193 | 229 | 0 | 0 | 0.000 | 0.000 |
038 | Textiles: Ironing or Smoothing | 25 | 38 | 0 | 0 | 0.000 | 0.000 |
040 | Card, Picture, or Sign Exhibiting | 188 | 265 | 0 | 0 | 0.000 | 0.000 |
042 | Firearms | 123 | 75 | 0 | 0 | 0.000 | 0.000 |
043 | Fishing, Trapping, and Vermin Destroying | 281 | 290 | 0 | 0 | 0.000 | 0.000 |
049 | Movable or Removable Closures | 184 | 236 | 0 | 0 | 0.000 | 0.000 |
053 | Package Making | 361 | 455 | 0 | 0 | 0.000 | 0.000 |
054 | Harness (for animals) | 17 | 31 | 1 | 0 | 4.497 | 0.000 |
055 | Gas Separation | 95 | 170 | 1 | 0 | 0.805 | 0.000 |
056 | Harvesters | 244 | 228 | 1 | 0 | 0.313 | 0.000 |
057 | Textiles: Spinning, Twisting, and Twining | 148 | 108 | 0 | 0 | 0.000 | 0.000 |
059 | Chain, Staple, and Horseshoe Making | 15 | 23 | 0 | 0 | 0.000 | 0.000 |
063 | Jewelry | 26 | 41 | 0 | 0 | 0.000 | 0.000 |
066 | Textiles: Knitting | 35 | 141 | 0 | 0 | 0.000 | 0.000 |
068 | Textiles: Fluid Treating Apparatus | 60 | 69 | 0 | 0 | 0.000 | 0.000 |
069 | Leather Manufactures | 3 | 2 | 0 | 0 | 0.000 | 0.000 |
070 | Locks | 223 | 249 | 0 | 0 | 0.000 | 0.000 |
076 | Metal Tools and Implements, Making | 16 | 31 | 0 | 0 | 0.000 | 0.000 |
079 | Button Making | 0 | 1 | 0 | 0 | 0.000 | 0.000 |
081 | Tools | 200 | 351 | 0 | 0 | 0.000 | 0.000 |
082 | Turning (e.g., for metal working) | 66 | 66 | 0 | 0 | 0.000 | 0.000 |
086 | Ammunition and Explosive-Charge Making | 13 | 8 | 0 | 0 | 0.000 | 0.000 |
087 | Textiles: Braiding, Netting, and Lace Making | 13 | 7 | 1 | 0 | 5.881 | 0.000 |
089 | Ordnance | 180 | 83 | 2 | 0 | 0.849 | 0.000 |
091 | Motors: Expansible Chamber Type | 122 | 80 | 0 | 0 | 0.000 | 0.000 |
092 | Expansible Chamber Devices | 103 | 98 | 0 | 0 | 0.000 | 0.000 |
100 | Presses | 54 | 81 | 0 | 0 | 0.000 | 0.000 |
104 | Railways | 122 | 65 | 0 | 0 | 0.000 | 0.000 |
105 | Railway Rolling Stock | 70 | 64 | 0 | 0 | 0.000 | 0.000 |
109 | Safes, Bank Protection, or a Related Device | 19 | 11 | 0 | 0 | 0.000 | 0.000 |
111 | Planting | 43 | 59 | 4 | 0 | 7.112 | 0.000 |
112 | Sewing | 159 | 156 | 0 | 0 | 0.000 | 0.000 |
116 | Signals and Indicators | 67 | 59 | 0 | 0 | 0.000 | 0.000 |
122 | Liquid Heaters and Vaporizers | 101 | 81 | 1 | 0 | 0.757 | 0.000 |
124 | Mechanical Guns and Projectors | 70 | 99 | 0 | 0 | 0.000 | 0.000 |
125 | Stone Working | 45 | 68 | 0 | 0 | 0.000 | 0.000 |
131 | Tobacco | 157 | 89 | 1 | 0 | 0.487 | 0.000 |
132 | Toilet | 107 | 239 | 0 | 0 | 0.000 | 0.000 |
135 | Tent, Canopy, Umbrella, or Cane | 75 | 121 | 0 | 0 | 0.000 | 0.000 |
138 | Pipes and Tubular Conduits | 82 | 275 | 0 | 0 | 0.000 | 0.000 |
140 | Wireworking | 31 | 30 | 0 | 0 | 0.000 | 0.000 |
142 | Wood Turning | 3 | 2 | 0 | 0 | 0.000 | 0.000 |
147 | Coopering | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
149 | Explosive and Thermic Compositions or Charges | 63 | 73 | 0 | 0 | 0.000 | 0.000 |
150 | Purses, Wallets, and Protective Covers | 23 | 28 | 0 | 0 | 0.000 | 0.000 |
152 | Resilient Tires and Wheels | 126 | 173 | 0 | 0 | 0.000 | 0.000 |
157 | Wheelwright Machines | 11 | 15 | 0 | 0 | 0.000 | 0.000 |
159 | Concentrating Evaporators | 13 | 8 | 0 | 0 | 0.000 | 0.000 |
160 | Flexible or Portable Closure, Partition, or Panel | 122 | 238 | 0 | 0 | 0.000 | 0.000 |
162 | Paper Making and Fiber Liberation | 230 | 326 | 0 | 0 | 0.000 | 0.000 |
163 | Needle and Pin Making | 0 | 1 | 0 | 0 | 0.000 | 0.000 |
168 | Farriery | 6 | 12 | 0 | 0 | 0.000 | 0.000 |
169 | Fire Extinguishers | 43 | 96 | 0 | 0 | 0.000 | 0.000 |
171 | Unearthing Plants or Buried Objects | 13 | 7 | 0 | 0 | 0.000 | 0.000 |
173 | Tool Driving or Impacting | 53 | 99 | 0 | 0 | 0.000 | 0.000 |
175 | Boring or Penetrating the Earth | 168 | 268 | 0 | 0 | 0.000 | 0.000 |
177 | Weighing Scales | 76 | 57 | 1 | 0 | 1.006 | 0.000 |
178 | Telegraphy | 26 | 10 | 1 | 0 | 2.940 | 0.000 |
181 | Acoustics | 123 | 171 | 0 | 0 | 0.000 | 0.000 |
182 | Fire Escape, Ladder, or Scaffold | 133 | 162 | 0 | 0 | 0.000 | 0.000 |
184 | Lubrication | 75 | 59 | 0 | 0 | 0.000 | 0.000 |
185 | Motors: Spring, Weight, or Animal Powered | 5 | 4 | 0 | 0 | 0.000 | 0.000 |
186 | Merchandising | 9 | 10 | 0 | 0 | 0.000 | 0.000 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 63 | 116 | 0 | 0 | 0.000 | 0.000 |
190 | Trunks and Hand-Carried Luggage | 19 | 39 | 0 | 0 | 0.000 | 0.000 |
191 | Electricity: Transmission To Vehicles | 9 | 14 | 0 | 0 | 0.000 | 0.000 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 18 | 25 | 0 | 0 | 0.000 | 0.000 |
194 | Check-Actuated Control Mechanisms | 41 | 81 | 0 | 0 | 0.000 | 0.000 |
196 | Mineral Oils: Apparatus | 3 | 3 | 0 | 0 | 0.000 | 0.000 |
198 | Conveyors: Power-Driven | 386 | 420 | 0 | 0 | 0.000 | 0.000 |
199 | Type Casting | 1 | 0 | 0 | 0 | 0.000 | 0.000 |
201 | Distillation: Processes, Thermolytic | 9 | 5 | 0 | 0 | 0.000 | 0.000 |
203 | Distillation: Processes, Separatory | 79 | 48 | 1 | 0 | 0.968 | 0.000 |
211 | Supports: Racks | 205 | 318 | 0 | 0 | 0.000 | 0.000 |
212 | Traversing Hoists | 32 | 51 | 0 | 0 | 0.000 | 0.000 |
213 | Railway Draft Appliances | 14 | 13 | 0 | 0 | 0.000 | 0.000 |
215 | Bottles and Jars | 144 | 164 | 0 | 0 | 0.000 | 0.000 |
217 | Wooden Receptacles | 2 | 3 | 0 | 0 | 0.000 | 0.000 |
218 | High-Voltage Switches with Arc Preventing or Extinguishing Devices | 45 | 47 | 0 | 0 | 0.000 | 0.000 |
220 | Receptacles | 445 | 477 | 0 | 0 | 0.000 | 0.000 |
222 | Dispensing (apparatus and process) | 533 | 629 | 0 | 0 | 0.000 | 0.000 |
223 | Apparel Apparatus | 44 | 93 | 0 | 0 | 0.000 | 0.000 |
224 | Package and Article Carriers | 200 | 245 | 0 | 0 | 0.000 | 0.000 |
225 | Severing by Tearing or Breaking | 25 | 21 | 0 | 0 | 0.000 | 0.000 |
226 | Advancing Material of Indeterminate Length | 47 | 47 | 0 | 0 | 0.000 | 0.000 |
227 | Elongated-Member-Driving Apparatus | 69 | 121 | 0 | 0 | 0.000 | 0.000 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 202 | 191 | 0 | 0 | 0.000 | 0.000 |
231 | Whips and Whip Apparatus | 0 | 4 | 0 | 0 | 0.000 | 0.000 |
232 | Deposit and Collection Receptacles | 34 | 19 | 0 | 0 | 0.000 | 0.000 |
234 | Selective Cutting (e.g., Punching) | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 193 | 605 | 0 | 0 | 0.000 | 0.000 |
236 | Automatic Temperature and Humidity Regulation | 70 | 80 | 0 | 0 | 0.000 | 0.000 |
237 | Heating Systems | 42 | 46 | 0 | 0 | 0.000 | 0.000 |
238 | Railways: Surface Track | 34 | 21 | 0 | 0 | 0.000 | 0.000 |
241 | Solid Material Comminution or Disintegration | 226 | 211 | 2 | 0 | 0.677 | 0.000 |
245 | Wire Fabrics and Structure | 1 | 1 | 0 | 0 | 0.000 | 0.000 |
246 | Railway Switches and Signals | 23 | 31 | 0 | 0 | 0.000 | 0.000 |
248 | Supports (e.g., for holding articles, etc.) | 608 | 799 | 1 | 0 | 0.126 | 0.000 |
249 | Static Molds | 45 | 35 | 0 | 0 | 0.000 | 0.000 |
251 | Valves and Valve Actuation | 266 | 342 | 1 | 0 | 0.287 | 0.000 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 90 | 150 | 0 | 0 | 0.000 | 0.000 |
258 | Railway Mail Delivery | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
260 | Chemistry of Carbon Compounds | 0 | 3 | 0 | 0 | 0.000 | 0.000 |
261 | Gas and Liquid Contact Apparatus | 102 | 119 | 0 | 0 | 0.000 | 0.000 |
267 | Spring Devices | 143 | 158 | 0 | 0 | 0.000 | 0.000 |
269 | Work Holders | 115 | 137 | 0 | 0 | 0.000 | 0.000 |
270 | Sheet-Material Associating | 68 | 33 | 0 | 0 | 0.000 | 0.000 |
271 | Sheet Feeding or Delivering | 229 | 320 | 0 | 0 | 0.000 | 0.000 |
273 | Amusement Devices: Games | 278 | 291 | 0 | 0 | 0.000 | 0.000 |
276 | Typesetting | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
278 | Land Vehicles: Animal Draft Appliances | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
279 | Chucks or Sockets | 30 | 46 | 0 | 0 | 0.000 | 0.000 |
281 | Books, Strips, and Leaves | 48 | 54 | 0 | 0 | 0.000 | 0.000 |
283 | Printed Matter | 74 | 125 | 0 | 0 | 0.000 | 0.000 |
289 | Knots and Knot Tying | 4 | 5 | 0 | 0 | 0.000 | 0.000 |
290 | Prime-Mover Dynamo Plants | 35 | 82 | 0 | 0 | 0.000 | 0.000 |
291 | Track Sanders | 3 | 1 | 0 | 0 | 0.000 | 0.000 |
292 | Closure Fasteners | 239 | 231 | 0 | 0 | 0.000 | 0.000 |
293 | Vehicle Fenders | 33 | 32 | 0 | 0 | 0.000 | 0.000 |
294 | Handling: Hand and Hoist-Line Implements | 146 | 240 | 1 | 0 | 0.524 | 0.000 |
295 | Railway Wheels and Axles | 3 | 2 | 0 | 0 | 0.000 | 0.000 |
296 | Land Vehicles: Bodies and Tops | 370 | 619 | 0 | 0 | 0.000 | 0.000 |
297 | Chairs and Seats | 260 | 648 | 0 | 0 | 0.000 | 0.000 |
298 | Land Vehicles: Dumping | 10 | 21 | 0 | 0 | 0.000 | 0.000 |
299 | Mining or In Situ Disintegration of Hard Material | 72 | 44 | 0 | 0 | 0.000 | 0.000 |
300 | Brush, Broom, and Mop Making | 13 | 5 | 0 | 0 | 0.000 | 0.000 |
301 | Land Vehicles: Wheels and Axles | 58 | 121 | 0 | 0 | 0.000 | 0.000 |
303 | Fluid-Pressure and Analogous Brake Systems | 159 | 272 | 0 | 0 | 0.000 | 0.000 |
305 | Wheel Substitutes for Land Vehicles | 17 | 41 | 0 | 0 | 0.000 | 0.000 |
312 | Supports: Cabinet Structure | 136 | 270 | 0 | 0 | 0.000 | 0.000 |
314 | Electric Lamp and Discharge Devices: Consumable Electrodes | 1 | 0 | 0 | 0 | 0.000 | 0.000 |
329 | Demodulators | 29 | 36 | 0 | 0 | 0.000 | 0.000 |
330 | Amplifiers | 188 | 423 | 0 | 0 | 0.000 | 0.000 |
332 | Modulators | 21 | 27 | 0 | 0 | 0.000 | 0.000 |
334 | Tuners | 4 | 1 | 0 | 0 | 0.000 | 0.000 |
336 | Inductor Devices | 52 | 127 | 0 | 0 | 0.000 | 0.000 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 69 | 64 | 0 | 0 | 0.000 | 0.000 |
346 | Recorders | 75 | 22 | 0 | 0 | 0.000 | 0.000 |
352 | Optics: Motion Pictures | 23 | 21 | 1 | 0 | 3.324 | 0.000 |
358 | Facsimile and Static Presentation Processing | 472 | 743 | 1 | 0 | 0.162 | 0.000 |
368 | Horology: Time Measuring Systems or Devices | 105 | 129 | 0 | 0 | 0.000 | 0.000 |
373 | Industrial Electric Heating Furnaces | 27 | 56 | 0 | 0 | 0.000 | 0.000 |
379 | Telephonic Communications | 412 | 914 | 1 | 0 | 0.186 | 0.000 |
383 | Flexible Bags | 93 | 133 | 0 | 0 | 0.000 | 0.000 |
384 | Bearings | 250 | 267 | 0 | 0 | 0.000 | 0.000 |
386 | Television Signal Processing for Dynamic Recording or Reproducing | 149 | 310 | 0 | 0 | 0.000 | 0.000 |
388 | Electricity: Motor Control Systems | 27 | 21 | 0 | 0 | 0.000 | 0.000 |
399 | Electrophotography | 531 | 956 | 0 | 0 | 0.000 | 0.000 |
400 | Typewriting Machines | 253 | 305 | 0 | 0 | 0.000 | 0.000 |
401 | Coating Implements with Material Supply | 151 | 225 | 0 | 0 | 0.000 | 0.000 |
402 | Binder Device Releasably Engaging Aperture or Notch of Sheet | 33 | 52 | 0 | 0 | 0.000 | 0.000 |
407 | Cutters, for Shaping | 47 | 84 | 2 | 0 | 3.253 | 0.000 |
408 | Cutting by Use of Rotating Axially Moving Tool | 115 | 94 | 0 | 0 | 0.000 | 0.000 |
409 | Gear Cutting, Milling, or Planing | 105 | 116 | 0 | 0 | 0.000 | 0.000 |
410 | Freight Accommodation On Freight Carrier | 39 | 97 | 0 | 0 | 0.000 | 0.000 |
412 | Bookbinding: Process and Apparatus | 21 | 37 | 0 | 0 | 0.000 | 0.000 |
413 | Sheet Metal Container Making | 7 | 7 | 0 | 0 | 0.000 | 0.000 |
418 | Rotary Expansible Chamber Devices | 123 | 281 | 0 | 0 | 0.000 | 0.000 |
420 | Alloys or Metallic Compositions | 117 | 58 | 1 | 0 | 0.653 | 0.000 |
432 | Heating | 123 | 99 | 0 | 0 | 0.000 | 0.000 |
441 | Buoys, Rafts, and Aquatic Devices | 75 | 93 | 0 | 0 | 0.000 | 0.000 |
446 | Amusement Devices: Toys | 216 | 330 | 0 | 0 | 0.000 | 0.000 |
449 | Bee Culture (propagating, raising, caring for bees) | 0 | 3 | 0 | 0 | 0.000 | 0.000 |
450 | Foundation Garments | 8 | 57 | 0 | 0 | 0.000 | 0.000 |
451 | Abrading | 290 | 668 | 0 | 0 | 0.000 | 0.000 |
453 | Coin Handling | 13 | 29 | 0 | 0 | 0.000 | 0.000 |
460 | Crop Threshing or Separating | 32 | 30 | 0 | 0 | 0.000 | 0.000 |
462 | Books, Strips, and Leaves for Manifolding | 13 | 3 | 0 | 0 | 0.000 | 0.000 |
463 | Amusement Devices: Games | 45 | 236 | 0 | 0 | 0.000 | 0.000 |
470 | Threaded, Headed Fastener, or Washer Making: Process and Apparatus | 3 | 12 | 0 | 0 | 0.000 | 0.000 |
472 | Amusement Devices | 44 | 56 | 0 | 0 | 0.000 | 0.000 |
475 | Planetary Gear Transmission Systems or Components | 138 | 213 | 0 | 0 | 0.000 | 0.000 |
476 | Friction Gear Transmission Systems or Components | 16 | 38 | 0 | 0 | 0.000 | 0.000 |
477 | Interrelated Power Delivery Controls, Including Engine Control | 128 | 203 | 0 | 0 | 0.000 | 0.000 |
483 | Tool Changing | 29 | 36 | 0 | 0 | 0.000 | 0.000 |
492 | Roll or Roller | 24 | 28 | 0 | 0 | 0.000 | 0.000 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 94 | 171 | 0 | 0 | 0.000 | 0.000 |
503 | Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor | 152 | 83 | 0 | 0 | 0.000 | 0.000 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 43 | 59 | 0 | 0 | 0.000 | 0.000 |
512 | Perfume Compositions | 32 | 29 | 0 | 0 | 0.000 | 0.000 |
602 | Surgery: Splint, Brace, or Bandage | 126 | 222 | 3 | 0 | 1.820 | 0.000 |
TOT | *** All Classes *** | 90365 | 157495 | 1182 | 3087 | 1.000 | 1.000 |
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/