U.S. PATENT AND TRADEMARK OFFICE Information Products Division Technology Assessment and Forecast (TAF) Branch |
Class | Class Title | 1996 | 1997 | 1998 | 1999 | 2000 | Total |
532 | Organic Compounds (includes Classes 532-570) | 450 | 458 | 579 | 480 | 458 | 2425 |
424 | Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) | 306 | 417 | 425 | 469 | 499 | 2116 |
520 | Synthetic Resins or Natural Rubbers (includes Classes 520-528) | 386 | 363 | 489 | 388 | 423 | 2049 |
123 | Internal-Combustion Engines | 153 | 139 | 213 | 203 | 261 | 969 |
428 | Stock Material or Miscellaneous Articles | 131 | 131 | 169 | 218 | 183 | 832 |
073 | Measuring and Testing | 135 | 132 | 159 | 152 | 159 | 737 |
435 | Chemistry: Molecular Biology and Microbiology | 85 | 105 | 163 | 158 | 154 | 665 |
101 | Printing | 103 | 109 | 150 | 112 | 96 | 570 |
280 | Land Vehicles | 70 | 71 | 98 | 134 | 147 | 520 |
439 | Electrical Connectors | 51 | 89 | 101 | 106 | 127 | 474 |
324 | Electricity: Measuring and Testing | 88 | 73 | 80 | 95 | 89 | 425 |
264 | Plastic and Nonmetallic Article Shaping or Treating: Processes | 62 | 69 | 89 | 91 | 95 | 406 |
128 | Surgery (includes Class 600) | 61 | 82 | 86 | 84 | 91 | 404 |
210 | Liquid Purification or Separation | 77 | 97 | 73 | 71 | 81 | 399 |
242 | Winding, Tensioning, or Guiding | 60 | 54 | 96 | 86 | 102 | 398 |
427 | Coating Processes | 63 | 70 | 73 | 88 | 93 | 387 |
074 | Machine Element or Mechanism | 58 | 52 | 90 | 86 | 97 | 383 |
192 | Clutches and Power-Stop Control | 47 | 55 | 66 | 102 | 110 | 380 |
029 | Metal Working | 43 | 59 | 89 | 63 | 115 | 369 |
060 | Power Plants | 44 | 55 | 74 | 88 | 103 | 364 |
072 | Metal Deforming | 45 | 54 | 76 | 93 | 94 | 362 |
340 | Communications: Electrical | 44 | 53 | 76 | 70 | 95 | 338 |
361 | Electricity: Electrical Systems and Devices | 50 | 51 | 71 | 80 | 86 | 338 |
137 | Fluid Handling | 44 | 53 | 53 | 76 | 101 | 327 |
303 | Fluid-Pressure and Analogous Brake Systems | 69 | 54 | 70 | 59 | 75 | 327 |
359 | Optics: Systems (Including Communication) and Elements | 62 | 50 | 79 | 67 | 62 | 320 |
156 | Adhesive Bonding and Miscellaneous Chemical Manufacture | 50 | 46 | 63 | 89 | 64 | 312 |
606 | Surgery (instruments) | 35 | 57 | 80 | 63 | 77 | 312 |
296 | Land Vehicles: Bodies and Tops | 43 | 41 | 56 | 79 | 92 | 311 |
701 | DP: Vehicles, Navigation, and Relative Location (Data Processing) | 35 | 29 | 59 | 67 | 114 | 304 |
356 | Optics: Measuring and Testing | 45 | 35 | 68 | 64 | 89 | 301 |
504 | Plant Protecting and Regulating Compositions | 47 | 61 | 64 | 61 | 64 | 297 |
219 | Electric Heating | 36 | 39 | 51 | 70 | 96 | 292 |
252 | Compositions | 59 | 43 | 61 | 61 | 67 | 291 |
310 | Electrical Generator or Motor Structure | 35 | 43 | 70 | 60 | 82 | 290 |
430 | Radiation Imagery Chemistry: Process, Composition, or Product Thereof | 52 | 45 | 52 | 60 | 78 | 287 |
057 | Textiles: Spinning, Twisting, and Twining | 49 | 51 | 63 | 67 | 54 | 284 |
250 | Radiant Energy | 42 | 54 | 63 | 57 | 62 | 278 |
257 | Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) | 25 | 45 | 62 | 59 | 75 | 266 |
438 | Semiconductor Device Manufacturing: Process | 30 | 23 | 55 | 61 | 84 | 253 |
106 | Compositions: Coating or Plastic | 44 | 54 | 55 | 42 | 49 | 244 |
318 | Electricity: Motive Power Systems | 29 | 35 | 63 | 52 | 64 | 243 |
417 | Pumps | 56 | 33 | 38 | 43 | 72 | 242 |
425 | Plastic Article or Earthenware Shaping or Treating: Apparatus | 37 | 57 | 55 | 44 | 39 | 232 |
297 | Chairs and Seats | 28 | 34 | 40 | 62 | 62 | 226 |
198 | Conveyors: Power-Driven | 47 | 36 | 45 | 42 | 55 | 225 |
239 | Fluid Sprinkling, Spraying, and Diffusing | 24 | 31 | 62 | 53 | 55 | 225 |
378 | X-Ray or Gamma Ray Systems or Devices | 44 | 39 | 47 | 43 | 51 | 224 |
008 | Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers | 52 | 38 | 38 | 53 | 40 | 221 |
422 | Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing | 39 | 45 | 52 | 46 | 35 | 217 |
204 | Chemistry: Electrical and Wave Energy | 42 | 41 | 42 | 44 | 46 | 215 |
188 | Brakes | 36 | 34 | 46 | 36 | 52 | 204 |
370 | Multiplex Communications | 40 | 41 | 31 | 52 | 40 | 204 |
385 | Optical Waveguides | 31 | 21 | 45 | 45 | 57 | 199 |
423 | Chemistry of Inorganic Compounds | 34 | 32 | 34 | 41 | 54 | 195 |
502 | Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making | 44 | 29 | 34 | 40 | 48 | 195 |
510 | Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions | 35 | 38 | 35 | 49 | 38 | 195 |
053 | Package Making | 27 | 26 | 50 | 42 | 49 | 194 |
162 | Paper Making and Fiber Liberation | 33 | 38 | 41 | 34 | 39 | 185 |
604 | Surgery (Medicators and Receptors) | 31 | 27 | 53 | 32 | 41 | 184 |
455 | Telecommunications | 31 | 14 | 33 | 41 | 62 | 181 |
327 | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems | 21 | 21 | 43 | 40 | 53 | 178 |
414 | Material or Article Handling | 36 | 36 | 40 | 35 | 30 | 177 |
118 | Coating Apparatus | 29 | 35 | 32 | 50 | 30 | 176 |
180 | Motor Vehicles | 38 | 16 | 39 | 37 | 45 | 175 |
015 | Brushing, Scrubbing, and General Cleaning | 27 | 29 | 23 | 48 | 47 | 174 |
384 | Bearings | 33 | 27 | 40 | 27 | 47 | 174 |
307 | Electrical Transmission or Interconnection Systems | 13 | 18 | 41 | 55 | 46 | 173 |
052 | Static Structures (e.g., Buildings) | 22 | 24 | 39 | 34 | 51 | 170 |
222 | Dispensing (apparatus and process) | 23 | 25 | 34 | 48 | 40 | 170 |
271 | Sheet Feeding or Delivering | 29 | 32 | 32 | 37 | 39 | 169 |
403 | Joints and Connections | 32 | 35 | 35 | 24 | 41 | 167 |
206 | Special Receptacle or Package | 36 | 29 | 33 | 36 | 32 | 166 |
200 | Electricity: Circuit Makers and Breakers | 26 | 25 | 35 | 33 | 45 | 164 |
034 | Drying and Gas or Vapor Contact with Solids | 36 | 29 | 29 | 29 | 39 | 162 |
362 | Illumination | 20 | 33 | 24 | 43 | 41 | 161 |
451 | Abrading | 21 | 39 | 28 | 36 | 36 | 160 |
241 | Solid Material Comminution or Disintegration | 39 | 31 | 21 | 42 | 25 | 158 |
248 | Supports (e.g., for holding articles, etc.) | 27 | 17 | 27 | 38 | 46 | 155 |
251 | Valves and Valve Actuation | 17 | 21 | 25 | 36 | 56 | 155 |
313 | Electric Lamp and Discharge Devices | 26 | 30 | 34 | 31 | 33 | 154 |
205 | Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions | 29 | 30 | 29 | 33 | 27 | 148 |
375 | Pulse or Digital Communications | 20 | 20 | 33 | 35 | 40 | 148 |
174 | Electricity: Conductors and Insulators | 24 | 18 | 32 | 31 | 38 | 143 |
062 | Refrigeration | 25 | 27 | 19 | 40 | 31 | 142 |
348 | Television | 26 | 28 | 29 | 27 | 32 | 142 |
623 | Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor | 24 | 19 | 26 | 29 | 42 | 140 |
165 | Heat Exchange | 19 | 25 | 31 | 28 | 33 | 136 |
464 | Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts | 27 | 29 | 27 | 26 | 24 | 133 |
315 | Electric Lamp and Discharge Devices: Systems | 24 | 14 | 34 | 29 | 31 | 132 |
415 | Rotary Kinetic Fluid Motors or Pumps | 25 | 23 | 18 | 20 | 43 | 129 |
267 | Spring Devices | 33 | 19 | 24 | 24 | 28 | 128 |
429 | Chemistry: Electrical Current Producing Apparatus, Product, and Process | 20 | 17 | 21 | 29 | 41 | 128 |
285 | Pipe Joints or Couplings | 14 | 7 | 26 | 35 | 44 | 126 |
433 | Dentistry | 16 | 21 | 27 | 26 | 36 | 126 |
244 | Aeronautics | 18 | 19 | 26 | 32 | 28 | 123 |
436 | Chemistry: Analytical and Immunological Testing | 20 | 13 | 32 | 28 | 29 | 122 |
426 | Food or Edible Material: Processes, Compositions, and Products | 25 | 10 | 27 | 33 | 25 | 120 |
381 | Electrical Audio Signal Processing Systems and Devices | 15 | 26 | 28 | 21 | 29 | 119 |
083 | Cutting | 15 | 17 | 22 | 32 | 32 | 118 |
134 | Cleaning and Liquid Contact with Solids | 19 | 17 | 30 | 27 | 25 | 118 |
277 | Seal for a Joint or Juncture | 21 | 22 | 14 | 31 | 30 | 118 |
411 | Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener | 18 | 20 | 24 | 25 | 30 | 117 |
148 | Metal Treatment | 21 | 9 | 27 | 29 | 30 | 116 |
477 | Interrelated Power Delivery Controls, Including Engine Control | 20 | 14 | 20 | 27 | 35 | 116 |
408 | Cutting by Use of Rotating Axially Moving Tool | 17 | 17 | 30 | 29 | 22 | 115 |
235 | Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) | 13 | 13 | 19 | 27 | 42 | 114 |
702 | DP: Measuring, Calibrating, or Testing (Data Processing) | 18 | 17 | 25 | 26 | 28 | 114 |
019 | Textiles: Fiber Preparation | 25 | 28 | 19 | 15 | 26 | 113 |
164 | Metal Founding | 21 | 20 | 20 | 23 | 29 | 113 |
220 | Receptacles | 17 | 21 | 19 | 28 | 27 | 112 |
363 | Electric Power Conversion Systems | 11 | 18 | 20 | 34 | 28 | 111 |
475 | Planetary Gear Transmission Systems or Components | 22 | 23 | 20 | 20 | 24 | 109 |
141 | Fluent Material Handling, with Receiver or Receiver Coacting Means | 24 | 15 | 20 | 28 | 18 | 105 |
530 | Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof | 10 | 30 | 16 | 29 | 18 | 103 |
366 | Agitating (e.g., of articles and materials) | 31 | 9 | 15 | 19 | 28 | 102 |
714 | Error Detection/Correction and Fault Detection/Recovery | 24 | 13 | 25 | 12 | 28 | 102 |
100 | Presses | 16 | 23 | 22 | 21 | 19 | 101 |
209 | Classifying, Separating, and Assorting Solids | 20 | 18 | 20 | 15 | 27 | 100 |
342 | Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) | 18 | 10 | 20 | 19 | 31 | 98 |
700 | DP: Generic Control Systems or Specific Applications (Data Processing) | 22 | 20 | 33 | 10 | 13 | 98 |
033 | Geometrical Instruments | 19 | 15 | 20 | 17 | 26 | 97 |
030 | Cutlery | 17 | 24 | 22 | 16 | 17 | 96 |
379 | Telephonic Communications | 21 | 6 | 19 | 19 | 31 | 96 |
382 | Image Analysis | 8 | 12 | 26 | 28 | 22 | 96 |
335 | Electricity: Magnetically Operated Switches, Magnets, and Electromagnets | 15 | 14 | 12 | 27 | 27 | 95 |
365 | Static Information Storage and Retrieval | 8 | 8 | 16 | 25 | 37 | 94 |
024 | Buckles, Buttons, Clasps, Etc. | 11 | 18 | 21 | 24 | 16 | 90 |
372 | Coherent Light Generators | 16 | 8 | 21 | 23 | 21 | 89 |
493 | Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web | 11 | 7 | 17 | 27 | 26 | 88 |
066 | Textiles: Knitting | 16 | 14 | 6 | 19 | 31 | 86 |
092 | Expansible Chamber Devices | 15 | 14 | 19 | 18 | 20 | 86 |
501 | Compositions: Ceramic | 16 | 16 | 19 | 13 | 21 | 85 |
049 | Movable or Removable Closures | 14 | 14 | 15 | 18 | 23 | 84 |
091 | Motors: Expansible Chamber Type | 15 | 17 | 14 | 16 | 22 | 84 |
228 | Metal Fusion Bonding | 13 | 14 | 15 | 19 | 23 | 84 |
474 | Endless Belt Power Transmission Systems or Components | 6 | 17 | 22 | 21 | 18 | 84 |
112 | Sewing | 16 | 12 | 18 | 24 | 13 | 83 |
292 | Closure Fasteners | 12 | 18 | 16 | 21 | 16 | 83 |
323 | Electricity: Power Supply or Regulation Systems | 14 | 17 | 8 | 16 | 27 | 82 |
139 | Textiles: Weaving | 9 | 12 | 19 | 14 | 26 | 80 |
065 | Glass Manufacturing | 8 | 22 | 25 | 12 | 12 | 79 |
347 | Incremental Printing of Symbolic Information | 12 | 10 | 27 | 16 | 14 | 79 |
405 | Hydraulic and Earth Engineering | 13 | 13 | 23 | 19 | 11 | 79 |
585 | Chemistry of Hydrocarbon Compounds | 10 | 8 | 28 | 23 | 10 | 79 |
704 | DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) | 5 | 11 | 19 | 26 | 18 | 79 |
099 | Foods and Beverages: Apparatus | 14 | 13 | 14 | 19 | 17 | 77 |
056 | Harvesters | 5 | 7 | 23 | 20 | 20 | 75 |
070 | Locks | 10 | 11 | 11 | 24 | 19 | 75 |
102 | Ammunition and Explosives | 19 | 17 | 13 | 18 | 6 | 73 |
345 | Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems | 9 | 15 | 14 | 13 | 22 | 73 |
376 | Induced Nuclear Reactions: Processes, Systems, and Elements | 12 | 10 | 16 | 25 | 10 | 73 |
055 | Gas Separation | 10 | 6 | 17 | 18 | 21 | 72 |
418 | Rotary Expansible Chamber Devices | 12 | 16 | 10 | 10 | 24 | 72 |
138 | Pipes and Tubular Conduits | 5 | 5 | 7 | 21 | 33 | 71 |
442 | Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) | 9 | 15 | 18 | 15 | 14 | 71 |
607 | Surgery: Light, Thermal, and Electrical Application | 10 | 10 | 10 | 18 | 23 | 71 |
095 | Gas Separation: Processes | 13 | 8 | 22 | 15 | 12 | 70 |
409 | Gear Cutting, Milling, or Planing | 9 | 12 | 19 | 19 | 11 | 70 |
709 | Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) | 6 | 10 | 21 | 12 | 21 | 70 |
710 | Input/Output (Electrical Computers and Digital Processing Systems) | 10 | 14 | 10 | 20 | 16 | 70 |
016 | Miscellaneous Hardware | 15 | 9 | 18 | 14 | 13 | 69 |
089 | Ordnance | 10 | 15 | 11 | 21 | 12 | 69 |
075 | Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures | 11 | 7 | 18 | 11 | 18 | 65 |
800 | Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes | 11 | 12 | 12 | 12 | 18 | 65 |
312 | Supports: Cabinet Structure | 4 | 10 | 12 | 10 | 28 | 64 |
341 | Coded Data Generation or Conversion | 7 | 14 | 17 | 9 | 16 | 63 |
343 | Communications: Radio Wave Antennas | 4 | 6 | 10 | 23 | 20 | 63 |
110 | Furnaces | 11 | 14 | 12 | 10 | 12 | 59 |
360 | Dynamic Magnetic Information Storage or Retrieval | 7 | 8 | 14 | 17 | 13 | 59 |
117 | Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor | 10 | 3 | 13 | 17 | 15 | 58 |
181 | Acoustics | 10 | 8 | 10 | 15 | 14 | 57 |
351 | Optics: Eye Examining, Vision Testing and Correcting | 5 | 6 | 12 | 21 | 13 | 57 |
454 | Ventilation | 14 | 13 | 10 | 11 | 9 | 57 |
203 | Distillation: Processes, Separatory | 6 | 13 | 10 | 16 | 11 | 56 |
407 | Cutters, for Shaping | 3 | 9 | 20 | 13 | 11 | 56 |
369 | Dynamic Information Storage or Retrieval | 9 | 5 | 13 | 12 | 15 | 54 |
187 | Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle | 10 | 13 | 14 | 6 | 10 | 53 |
432 | Heating | 5 | 5 | 18 | 17 | 8 | 53 |
396 | Photography | 6 | 9 | 15 | 15 | 7 | 52 |
399 | Electrophotography | 10 | 3 | 12 | 11 | 16 | 52 |
337 | Electricity: Electrothermally or Thermally Actuated Switches | 2 | 7 | 10 | 20 | 11 | 50 |
431 | Combustion | 6 | 7 | 15 | 13 | 9 | 50 |
713 | Support (Electrical Computers and Digital Processing Systems) | 6 | 5 | 10 | 14 | 15 | 50 |
175 | Boring or Penetrating the Earth | 8 | 7 | 9 | 11 | 14 | 49 |
711 | Memory (Electrical Computers and Digital Processing Systems) | 7 | 4 | 14 | 8 | 16 | 49 |
105 | Railway Rolling Stock | 9 | 6 | 11 | 12 | 10 | 48 |
266 | Metallurgical Apparatus | 12 | 11 | 4 | 12 | 9 | 48 |
330 | Amplifiers | 3 | 8 | 7 | 13 | 17 | 48 |
416 | Fluid Reaction Surfaces (i.e., Impellers) | 4 | 11 | 5 | 11 | 17 | 48 |
126 | Stoves and Furnaces | 5 | 5 | 9 | 13 | 14 | 46 |
173 | Tool Driving or Impacting | 3 | 6 | 9 | 13 | 15 | 46 |
333 | Wave Transmission Lines and Networks | 7 | 9 | 6 | 8 | 16 | 46 |
374 | Thermal Measuring and Testing | 6 | 7 | 14 | 2 | 17 | 46 |
218 | High-Voltage Switches with Arc Preventing or Extinguishing Devices | 10 | 4 | 13 | 8 | 10 | 45 |
492 | Roll or Roller | 3 | 11 | 16 | 8 | 7 | 45 |
005 | Beds | 11 | 14 | 4 | 7 | 8 | 44 |
096 | Gas Separation: Apparatus | 10 | 9 | 10 | 6 | 8 | 43 |
131 | Tobacco | 7 | 10 | 12 | 6 | 8 | 43 |
215 | Bottles and Jars | 7 | 3 | 13 | 8 | 12 | 43 |
358 | Facsimile and Static Presentation Processing | 11 | 7 | 13 | 11 | 1 | 43 |
508 | Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions | 10 | 7 | 5 | 10 | 11 | 43 |
269 | Work Holders | 7 | 4 | 11 | 9 | 11 | 42 |
082 | Turning (e.g., for metal working) | 5 | 9 | 7 | 9 | 11 | 41 |
108 | Horizontally Supported Planar Surfaces | 10 | 6 | 9 | 4 | 12 | 41 |
226 | Advancing Material of Indeterminate Length | 5 | 9 | 8 | 13 | 6 | 41 |
404 | Road Structure, Process, or Apparatus | 8 | 6 | 9 | 10 | 8 | 41 |
002 | Apparel | 3 | 5 | 10 | 9 | 12 | 39 |
004 | Baths, Closets, Sinks, and Spittoons | 3 | 4 | 8 | 15 | 9 | 39 |
036 | Boots, Shoes, and Leggings | 8 | 8 | 9 | 7 | 7 | 39 |
160 | Flexible or Portable Closure, Partition, or Panel | 8 | 6 | 8 | 6 | 11 | 39 |
401 | Coating Implements with Material Supply | 5 | 3 | 7 | 9 | 15 | 39 |
708 | Arithmetic Processing and Calculating (Electrical Computers) | 2 | 7 | 8 | 12 | 10 | 39 |
119 | Animal Husbandry | 7 | 3 | 8 | 7 | 13 | 38 |
320 | Electricity: Battery or Capacitor Charging or Discharging | 7 | 9 | 9 | 6 | 7 | 38 |
373 | Industrial Electric Heating Furnaces | 10 | 8 | 6 | 8 | 6 | 38 |
452 | Butchering | 9 | 4 | 7 | 11 | 7 | 38 |
706 | DP: Artificial Intelligence (Data Processing) | 1 | 6 | 20 | 4 | 7 | 38 |
400 | Typewriting Machines | 10 | 5 | 6 | 5 | 11 | 37 |
177 | Weighing Scales | 3 | 3 | 14 | 7 | 9 | 36 |
224 | Package and Article Carriers | 7 | 10 | 6 | 8 | 4 | 35 |
516 | Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting | 6 | 5 | 8 | 9 | 7 | 35 |
602 | Surgery: Splint, Brace, or Bandage | 3 | 4 | 8 | 6 | 14 | 35 |
331 | Oscillators | 3 | 5 | 9 | 10 | 7 | 34 |
136 | Batteries: Thermoelectric and Photoelectric | 3 | 8 | 5 | 7 | 10 | 33 |
211 | Supports: Racks | 5 | 3 | 9 | 5 | 11 | 33 |
355 | Photocopying | 2 | 6 | 10 | 8 | 7 | 33 |
419 | Powder Metallurgy Processes | 5 | 9 | 6 | 6 | 7 | 33 |
028 | Textiles: Manufacturing | 2 | 9 | 4 | 6 | 11 | 32 |
081 | Tools | 6 | 6 | 5 | 5 | 10 | 32 |
104 | Railways | 7 | 7 | 9 | 2 | 7 | 32 |
236 | Automatic Temperature and Humidity Regulation | 2 | 3 | 5 | 12 | 10 | 32 |
279 | Chucks or Sockets | 3 | 4 | 8 | 8 | 9 | 32 |
294 | Handling: Hand and Hoist-Line Implements | 3 | 7 | 4 | 7 | 11 | 32 |
336 | Inductor Devices | 6 | 4 | 10 | 8 | 4 | 32 |
114 | Ships | 7 | 3 | 9 | 3 | 9 | 31 |
152 | Resilient Tires and Wheels | 8 | 7 | 5 | 5 | 6 | 31 |
460 | Crop Threshing or Separating | 6 | 4 | 6 | 9 | 6 | 31 |
705 | DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) | 1 | 6 | 6 | 10 | 8 | 31 |
042 | Firearms | 5 | 10 | 7 | 4 | 4 | 30 |
084 | Music | 6 | 1 | 8 | 10 | 5 | 30 |
212 | Traversing Hoists | 2 | 9 | 7 | 5 | 7 | 30 |
216 | Etching a Substrate: Processes | 7 | 10 | 7 | 1 | 5 | 30 |
326 | Electronic Digital Logic Circuitry | 4 | 4 | 4 | 5 | 13 | 30 |
367 | Communications, Electrical: Acoustic Wave Systems and Devices | 9 | 3 | 7 | 5 | 6 | 30 |
707 | DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) | 1 | 1 | 5 | 13 | 10 | 30 |
229 | Envelopes, Wrappers, and Paperboard Boxes | 6 | 5 | 3 | 11 | 4 | 29 |
261 | Gas and Liquid Contact Apparatus | 3 | 7 | 4 | 3 | 12 | 29 |
227 | Elongated-Member-Driving Apparatus | 5 | 1 | 5 | 7 | 10 | 28 |
392 | Electric Resistance Heating Devices | 2 | 4 | 2 | 11 | 9 | 28 |
473 | Games Using Tangible Projectile | 3 | 7 | 9 | 4 | 5 | 28 |
044 | Fuel and Related Compositions | 4 | 3 | 6 | 6 | 8 | 27 |
122 | Liquid Heaters and Vaporizers | 6 | 3 | 5 | 9 | 4 | 27 |
301 | Land Vehicles: Wheels and Axles | 3 | 6 | 3 | 7 | 8 | 27 |
349 | Liquid Crystal Cells, Elements and Systems | 5 | 6 | 8 | 3 | 5 | 27 |
483 | Tool Changing | 3 | 6 | 4 | 6 | 8 | 27 |
068 | Textiles: Fluid Treating Apparatus | 2 | 5 | 5 | 9 | 5 | 26 |
132 | Toilet | 1 | 4 | 11 | 6 | 4 | 26 |
237 | Heating Systems | 6 | 5 | 8 | 4 | 3 | 26 |
144 | Woodworking | 2 | 2 | 4 | 7 | 9 | 24 |
149 | Explosive and Thermic Compositions or Charges | 11 | 5 | 1 | 3 | 4 | 24 |
254 | Implements or Apparatus for Applying Pushing or Pulling Force | 3 | 4 | 6 | 4 | 7 | 24 |
712 | Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) | 1 | 2 | 6 | 10 | 5 | 24 |
338 | Electrical Resistors | 4 | 4 | 5 | 6 | 4 | 23 |
368 | Horology: Time Measuring Systems or Devices | 4 | 6 | 3 | 5 | 5 | 23 |
420 | Alloys or Metallic Compositions | 5 | 5 | 5 | 4 | 4 | 23 |
040 | Card, Picture, or Sign Exhibiting | 4 | 4 | 5 | 1 | 8 | 22 |
047 | Plant Husbandry | 1 | 2 | 3 | 5 | 11 | 22 |
494 | Imperforate Bowl: Centrifugal Separators | 3 | 3 | 4 | 8 | 4 | 22 |
026 | Textiles: Cloth Finishing | 3 | 2 | 8 | 5 | 3 | 21 |
037 | Excavating | 1 | 4 | 4 | 6 | 6 | 21 |
299 | Mining or In Situ Disintegration of Hard Material | 7 | 7 | 2 | 2 | 3 | 21 |
380 | Cryptography | 4 | 3 | 8 | 3 | 3 | 21 |
601 | Surgery: Kinesitherapy | 3 | 3 | 8 | 5 | 2 | 21 |
194 | Check-Actuated Control Mechanisms | 11 | 1 | 4 | 2 | 2 | 20 |
505 | Superconductor Technology: Apparatus, Material, Process | 2 | 1 | 7 | 2 | 8 | 20 |
014 | Bridges | 8 | 2 | 4 | 4 | 1 | 19 |
140 | Wireworking | 2 | 3 | 3 | 4 | 7 | 19 |
270 | Sheet-Material Associating | 7 | 3 | 7 | 0 | 2 | 19 |
283 | Printed Matter | 2 | 2 | 3 | 4 | 8 | 19 |
383 | Flexible Bags | 2 | 2 | 7 | 2 | 5 | 18 |
588 | Hazardous or Toxic Waste Destruction or Containment | 6 | 3 | 5 | 2 | 2 | 18 |
038 | Textiles: Ironing or Smoothing | 1 | 4 | 3 | 5 | 4 | 17 |
169 | Fire Extinguishers | 1 | 1 | 3 | 5 | 7 | 17 |
410 | Freight Accommodation On Freight Carrier | 2 | 0 | 2 | 8 | 5 | 17 |
440 | Marine Propulsion | 3 | 5 | 3 | 1 | 5 | 17 |
208 | Mineral Oils: Processes and Products | 3 | 0 | 5 | 7 | 1 | 16 |
445 | Electric Lamp or Space Discharge Component or Device Manufacturing | 5 | 1 | 4 | 2 | 4 | 16 |
703 | DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) | 2 | 3 | 7 | 2 | 2 | 16 |
071 | Chemistry: Fertilizers | 0 | 4 | 4 | 4 | 3 | 15 |
182 | Fire Escape, Ladder, or Scaffold | 0 | 1 | 3 | 9 | 2 | 15 |
273 | Amusement Devices: Games | 2 | 2 | 3 | 6 | 2 | 15 |
023 | Chemistry: Physical Processes | 3 | 1 | 3 | 1 | 6 | 14 |
048 | Gas: Heating and Illuminating | 3 | 0 | 6 | 5 | 0 | 14 |
059 | Chain, Staple, and Horseshoe Making | 0 | 0 | 2 | 6 | 6 | 14 |
191 | Electricity: Transmission To Vehicles | 0 | 3 | 5 | 5 | 1 | 14 |
221 | Article Dispensing | 2 | 1 | 1 | 6 | 4 | 14 |
386 | Television Signal Processing for Dynamic Recording or Reproducing | 1 | 1 | 4 | 4 | 4 | 14 |
412 | Bookbinding: Process and Apparatus | 3 | 1 | 3 | 4 | 3 | 14 |
482 | Exercise Devices | 3 | 3 | 3 | 4 | 1 | 14 |
717 | DP: Software Development, Installation, and Management (Data Processing) | 0 | 2 | 6 | 2 | 4 | 14 |
725 | Interactive Video Distribution Systems | 3 | 1 | 5 | 5 | 0 | 14 |
184 | Lubrication | 2 | 2 | 3 | 2 | 4 | 13 |
238 | Railways: Surface Track | 1 | 4 | 5 | 0 | 3 | 13 |
125 | Stone Working | 1 | 2 | 1 | 1 | 7 | 12 |
249 | Static Molds | 3 | 3 | 2 | 2 | 2 | 12 |
305 | Wheel Substitutes for Land Vehicles | 0 | 1 | 6 | 3 | 2 | 12 |
353 | Optics: Image Projectors | 4 | 0 | 0 | 5 | 3 | 12 |
406 | Conveyors: Fluid Current | 2 | 2 | 3 | 1 | 4 | 12 |
507 | Earth Boring, Well Treating, and Oil Field Chemistry | 2 | 1 | 4 | 1 | 4 | 12 |
076 | Metal Tools and Implements, Making | 1 | 0 | 4 | 3 | 3 | 11 |
166 | Wells (shafts or deep borings in the earth, e.g., for oil and gas) | 0 | 2 | 5 | 2 | 2 | 11 |
172 | Earth Working | 2 | 1 | 3 | 2 | 3 | 11 |
202 | Distillation: Apparatus | 1 | 2 | 3 | 3 | 2 | 11 |
322 | Electricity: Single Generator Systems | 5 | 0 | 1 | 2 | 3 | 11 |
446 | Amusement Devices: Toys | 1 | 1 | 3 | 2 | 4 | 11 |
127 | Sugar, Starch, and Carbohydrates | 3 | 3 | 1 | 1 | 2 | 10 |
223 | Apparel Apparatus | 1 | 2 | 3 | 2 | 2 | 10 |
293 | Vehicle Fenders | 1 | 0 | 5 | 2 | 2 | 10 |
332 | Modulators | 2 | 2 | 0 | 1 | 5 | 10 |
463 | Amusement Devices: Games | 1 | 1 | 1 | 4 | 3 | 10 |
512 | Perfume Compositions | 3 | 1 | 1 | 2 | 3 | 10 |
135 | Tent, Canopy, Umbrella, or Cane | 0 | 1 | 4 | 2 | 2 | 9 |
225 | Severing by Tearing or Breaking | 2 | 1 | 1 | 3 | 2 | 9 |
246 | Railway Switches and Signals | 2 | 1 | 5 | 0 | 1 | 9 |
290 | Prime-Mover Dynamo Plants | 0 | 2 | 2 | 2 | 3 | 9 |
434 | Education and Demonstration | 1 | 1 | 2 | 1 | 4 | 9 |
453 | Coin Handling | 3 | 2 | 1 | 1 | 2 | 9 |
001 | ** Classification Undetermined ** | 0 | 0 | 2 | 4 | 2 | 8 |
388 | Electricity: Motor Control Systems | 1 | 2 | 2 | 2 | 1 | 8 |
413 | Sheet Metal Container Making | 0 | 0 | 2 | 4 | 2 | 8 |
441 | Buoys, Rafts, and Aquatic Devices | 1 | 0 | 0 | 3 | 4 | 8 |
472 | Amusement Devices | 1 | 0 | 3 | 2 | 2 | 8 |
503 | Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor | 2 | 2 | 3 | 0 | 1 | 8 |
716 | DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) | 2 | 2 | 0 | 2 | 2 | 8 |
051 | Abrasive Tool Making Process, Material, or Composition | 4 | 2 | 0 | 1 | 0 | 7 |
063 | Jewelry | 2 | 3 | 1 | 0 | 1 | 7 |
377 | Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems | 4 | 1 | 0 | 1 | 1 | 7 |
116 | Signals and Indicators | 1 | 1 | 0 | 1 | 3 | 6 |
159 | Concentrating Evaporators | 2 | 0 | 1 | 2 | 1 | 6 |
281 | Books, Strips, and Leaves | 1 | 1 | 2 | 1 | 1 | 6 |
329 | Demodulators | 1 | 1 | 2 | 1 | 1 | 6 |
352 | Optics: Motion Pictures | 0 | 2 | 1 | 1 | 2 | 6 |
043 | Fishing, Trapping, and Vermin Destroying | 1 | 0 | 1 | 2 | 1 | 5 |
124 | Mechanical Guns and Projectors | 0 | 2 | 1 | 1 | 1 | 5 |
193 | Conveyors, Chutes, Skids, Guides, and Ways | 0 | 0 | 1 | 2 | 2 | 5 |
295 | Railway Wheels and Axles | 2 | 1 | 0 | 2 | 0 | 5 |
300 | Brush, Broom, and Mop Making | 2 | 1 | 1 | 0 | 1 | 5 |
346 | Recorders | 3 | 0 | 1 | 0 | 1 | 5 |
470 | Threaded, Headed Fastener, or Washer Making: Process and Apparatus | 2 | 2 | 0 | 1 | 0 | 5 |
476 | Friction Gear Transmission Systems or Components | 0 | 0 | 0 | 2 | 3 | 5 |
087 | Textiles: Braiding, Netting, and Lace Making | 1 | 0 | 3 | 0 | 0 | 4 |
190 | Trunks and Hand-Carried Luggage | 1 | 1 | 0 | 1 | 1 | 4 |
201 | Distillation: Processes, Thermolytic | 1 | 3 | 0 | 0 | 0 | 4 |
213 | Railway Draft Appliances | 3 | 1 | 0 | 0 | 0 | 4 |
256 | Fences | 0 | 1 | 0 | 2 | 1 | 4 |
086 | Ammunition and Explosive-Charge Making | 0 | 1 | 2 | 0 | 0 | 3 |
402 | Binder Device Releasably Engaging Aperture or Notch of Sheet | 1 | 1 | 1 | 0 | 0 | 3 |
518 | Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof | 0 | 2 | 1 | 0 | 0 | 3 |
111 | Planting | 0 | 0 | 0 | 0 | 2 | 2 |
171 | Unearthing Plants or Buried Objects | 0 | 0 | 1 | 0 | 1 | 2 |
178 | Telegraphy | 2 | 0 | 0 | 0 | 0 | 2 |
186 | Merchandising | 0 | 0 | 1 | 1 | 0 | 2 |
450 | Foundation Garments | 0 | 0 | 1 | 1 | 0 | 2 |
007 | Compound Hand Tools | 0 | 1 | 0 | 0 | 0 | 1 |
027 | Undertaking | 0 | 0 | 1 | 0 | 0 | 1 |
054 | Harness (for animals) | 0 | 1 | 0 | 0 | 0 | 1 |
069 | Leather Manufactures | 0 | 1 | 0 | 0 | 0 | 1 |
109 | Safes, Bank Protection, or a Related Device | 0 | 1 | 0 | 0 | 0 | 1 |
150 | Purses, Wallets, and Protective Covers | 0 | 0 | 0 | 1 | 0 | 1 |
163 | Needle and Pin Making | 1 | 0 | 0 | 0 | 0 | 1 |
168 | Farriery | 0 | 0 | 1 | 0 | 0 | 1 |
232 | Deposit and Collection Receptacles | 0 | 0 | 1 | 0 | 0 | 1 |
260 | Chemistry of Carbon Compounds | 0 | 0 | 0 | 0 | 1 | 1 |
ALL | ALL CLASSES | 6818 | 7008 | 9095 | 9337 | 10234 | 42492 |
U.S. Patent and Trademark Office
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Washington, DC 20231 tel: (703) 306-2600
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email: oeip@uspto.gov address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
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