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Text Menu | Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP | Patents Home
| Class | Title | Link to | Link to | Link to |
|---|---|---|---|---|
| 002 | Apparel | Schedule | Definition | US_to_IPC8 |
| 004 | Baths, closets, sinks, and spittoons | Schedule | Definition | US_to_IPC8 |
| 005 | Beds | Schedule | Definition | US_to_IPC8 |
| 007 | Compound tools | Schedule | Definition | US_to_IPC8 |
| 008 | Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers | Schedule | Definition | US_to_IPC8 |
| 012 | Boot and shoe making | Schedule | Definition | US_to_IPC8 |
| 014 | Bridges | Schedule | Definition | US_to_IPC8 |
| 015 | Brushing, scrubbing, and general cleaning | Schedule | Definition | US_to_IPC8 |
| 016 | Miscellaneous hardware | Schedule | Definition | US_to_IPC8 |
| 019 | Textiles: fiber preparation | Schedule | Definition | US_to_IPC8 |
| 023 | Chemistry: physical processes | Schedule | Definition | US_to_IPC8 |
| 024 | Buckles, buttons, clasps, etc. | Schedule | Definition | US_to_IPC8 |
| 026 | Textiles: cloth finishing | Schedule | Definition | US_to_IPC8 |
| 027 | Undertaking | Schedule | Definition | US_to_IPC8 |
| 028 | Textiles: manufacturing | Schedule | Definition | US_to_IPC8 |
| 029 | Metal working | Schedule | Definition | US_to_IPC8 |
| 030 | Cutlery | Schedule | Definition | US_to_IPC8 |
| 033 | Geometrical instruments | Schedule | Definition | US_to_IPC8 |
| 034 | Drying and gas or vapor contact with solids | Schedule | Definition | US_to_IPC8 |
| 036 | Boots, shoes, and leggings | Schedule | Definition | US_to_IPC8 |
| 037 | Excavating | Schedule | Definition | US_to_IPC8 |
| 038 | Textiles: ironing or smoothing | Schedule | Definition | US_to_IPC8 |
| 040 | Card, picture, or sign exhibiting | Schedule | Definition | US_to_IPC8 |
| 042 | Firearms | Schedule | Definition | US_to_IPC8 |
| 043 | Fishing, trapping, and vermin destroying | Schedule | Definition | US_to_IPC8 |
| 044 | Fuel and related compositions | Schedule | Definition | US_to_IPC8 |
| 047 | Plant husbandry | Schedule | Definition | US_to_IPC8 |
| 048 | Gas: heating and illuminating | Schedule | Definition | US_to_IPC8 |
| 049 | Movable or removable closures | Schedule | Definition | US_to_IPC8 |
| 051 | Abrasive tool making process, material, or composition | Schedule | Definition | US_to_IPC8 |
| 052 | Static structures (e.g., buildings) | Schedule | Definition | US_to_IPC8 |
| 053 | Package making | Schedule | Definition | US_to_IPC8 |
| 054 | Harness for working animal | Schedule | Definition | US_to_IPC8 |
| 055 | Gas separation | Schedule | Definition | US_to_IPC8 |
| 056 | Harvesters | Schedule | Definition | US_to_IPC8 |
| 057 | Textiles: spinning, twisting, and twining | Schedule | Definition | US_to_IPC8 |
| 059 | Chain, staple, and horseshoe making | Schedule | Definition | US_to_IPC8 |
| 060 | Power plants | Schedule | Definition | US_to_IPC8 |
| 062 | Refrigeration | Schedule | Definition | US_to_IPC8 |
| 063 | Jewelry | Schedule | Definition | US_to_IPC8 |
| 065 | Glass manufacturing | Schedule | Definition | US_to_IPC8 |
| 066 | Textiles: knitting | Schedule | Definition | US_to_IPC8 |
| 068 | Textiles: fluid treating apparatus | Schedule | Definition | US_to_IPC8 |
| 069 | Leather manufactures | Schedule | Definition | US_to_IPC8 |
| 070 | Locks | Schedule | Definition | US_to_IPC8 |
| 071 | Chemistry: fertilizers | Schedule | Definition | US_to_IPC8 |
| 072 | Metal deforming | Schedule | Definition | US_to_IPC8 |
| 073 | Measuring and testing | Schedule | Definition | US_to_IPC8 |
| 074 | Machine element or mechanism | Schedule | Definition | US_to_IPC8 |
| 075 | Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures | Schedule | Definition | US_to_IPC8 |
| 076 | Metal tools and implements, making | Schedule | Definition | US_to_IPC8 |
| 079 | Button making | Schedule | Definition | US_to_IPC8 |
| 081 | Tools | Schedule | Definition | US_to_IPC8 |
| 082 | Turning | Schedule | Definition | US_to_IPC8 |
| 083 | Cutting | Schedule | Definition | US_to_IPC8 |
| 084 | Music | Schedule | Definition | US_to_IPC8 |
| 086 | Ammunition and explosive-charge making | Schedule | Definition | US_to_IPC8 |
| 087 | Textiles: braiding, netting, and lace making | Schedule | Definition | US_to_IPC8 |
| 089 | Ordnance | Schedule | Definition | US_to_IPC8 |
| 091 | Motors: expansible chamber type | Schedule | Definition | US_to_IPC8 |
| 092 | Expansible chamber devices | Schedule | Definition | US_to_IPC8 |
| 095 | Gas separation: processes | Schedule | Definition | US_to_IPC8 |
| 096 | Gas separation: apparatus | Schedule | Definition | US_to_IPC8 |
| 099 | Foods and beverages: apparatus | Schedule | Definition | US_to_IPC8 |
| 100 | Presses | Schedule | Definition | US_to_IPC8 |
| 101 | Printing | Schedule | Definition | US_to_IPC8 |
| 102 | Ammunition and explosives | Schedule | Definition | US_to_IPC8 |
| 104 | Railways | Schedule | Definition | US_to_IPC8 |
| 105 | Railway rolling stock | Schedule | Definition | US_to_IPC8 |
| 106 | Compositions: coating or plastic | Schedule | Definition | US_to_IPC8 |
| 108 | Horizontally supported planar surfaces | Schedule | Definition | US_to_IPC8 |
| 109 | Safes, bank protection, or a related device | Schedule | Definition | US_to_IPC8 |
| 110 | Furnaces | Schedule | Definition | US_to_IPC8 |
| 111 | Planting | Schedule | Definition | US_to_IPC8 |
| 112 | Sewing | Schedule | Definition | US_to_IPC8 |
| 114 | Ships | Schedule | Definition | US_to_IPC8 |
| 116 | Signals and indicators | Schedule | Definition | US_to_IPC8 |
| 117 | Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor | Schedule | Definition | US_to_IPC8 |
| 118 | Coating apparatus | Schedule | Definition | US_to_IPC8 |
| 119 | Animal husbandry | Schedule | Definition | US_to_IPC8 |
| 122 | Liquid heaters and vaporizers | Schedule | Definition | US_to_IPC8 |
| 123 | Internal-combustion engines | Schedule | Definition | US_to_IPC8 |
| 124 | Mechanical guns and projectors | Schedule | Definition | US_to_IPC8 |
| 125 | Stone working | Schedule | Definition | US_to_IPC8 |
| 126 | Stoves and furnaces | Schedule | Definition | US_to_IPC8 |
| 127 | Sugar, starch, and carbohydrates | Schedule | Definition | US_to_IPC8 |
| 128 | Surgery | Schedule | Definition | US_to_IPC8 |
| 131 | Tobacco | Schedule | Definition | US_to_IPC8 |
| 132 | Toilet | Schedule | Definition | US_to_IPC8 |
| 134 | Cleaning and liquid contact with solids | Schedule | Definition | US_to_IPC8 |
| 135 | Tent, canopy, umbrella, or cane | Schedule | Definition | US_to_IPC8 |
| 136 | Batteries: thermoelectric and photoelectric | Schedule | Definition | US_to_IPC8 |
| 137 | Fluid handling | Schedule | Definition | US_to_IPC8 |
| 138 | Pipes and tubular conduits | Schedule | Definition | US_to_IPC8 |
| 139 | Textiles: weaving | Schedule | Definition | US_to_IPC8 |
| 140 | Wireworking | Schedule | Definition | US_to_IPC8 |
| 141 | Fluent material handling, with receiver or receiver coacting means | Schedule | Definition | US_to_IPC8 |
| 142 | Wood turning | Schedule | Definition | US_to_IPC8 |
| 144 | Woodworking | Schedule | Definition | US_to_IPC8 |
| 147 | Coopering | Schedule | Definition | US_to_IPC8 |
| 148 | Metal treatment | Schedule | Definition | US_to_IPC8 |
| 149 | Explosive and thermic compositions or charges | Schedule | Definition | US_to_IPC8 |
| 150 | Purses, wallets, and protective covers | Schedule | Definition | US_to_IPC8 |
| 152 | Resilient tires and wheels | Schedule | Definition | US_to_IPC8 |
| 156 | Adhesive bonding and miscellaneous chemical manufacture | Schedule | Definition | US_to_IPC8 |
| 157 | Wheelwright machines | Schedule | Definition | US_to_IPC8 |
| 159 | Concentrating evaporators | Schedule | Definition | US_to_IPC8 |
| 160 | Flexible or portable closure, partition, or panel | Schedule | Definition | US_to_IPC8 |
| 162 | Paper making and fiber liberation | Schedule | Definition | US_to_IPC8 |
| 163 | Needle and pin making | Schedule | Definition | US_to_IPC8 |
| 164 | Metal founding | Schedule | Definition | US_to_IPC8 |
| 165 | Heat exchange | Schedule | Definition | US_to_IPC8 |
| 166 | Wells | Schedule | Definition | US_to_IPC8 |
| 168 | Farriery | Schedule | Definition | US_to_IPC8 |
| 169 | Fire extinguishers | Schedule | Definition | US_to_IPC8 |
| 171 | Unearthing plants or buried objects | Schedule | Definition | US_to_IPC8 |
| 172 | Earth working | Schedule | Definition | US_to_IPC8 |
| 173 | Tool driving or impacting | Schedule | Definition | US_to_IPC8 |
| 174 | Electricity: conductors and insulators | Schedule | Definition | US_to_IPC8 |
| 175 | Boring or penetrating the earth | Schedule | Definition | US_to_IPC8 |
| 177 | Weighing scales | Schedule | Definition | US_to_IPC8 |
| 178 | Telegraphy | Schedule | Definition | US_to_IPC8 |
| 180 | Motor vehicles | Schedule | Definition | US_to_IPC8 |
| 181 | Acoustics | Schedule | Definition | US_to_IPC8 |
| 182 | Fire escape, ladder, or scaffold | Schedule | Definition | US_to_IPC8 |
| 184 | Lubrication | Schedule | Definition | US_to_IPC8 |
| 185 | Motors: spring, weight, or animal powered | Schedule | Definition | US_to_IPC8 |
| 186 | Merchandising | Schedule | Definition | US_to_IPC8 |
| 187 | Elevator, industrial lift truck, or stationary lift for vehicle | Schedule | Definition | US_to_IPC8 |
| 188 | Brakes | Schedule | Definition | US_to_IPC8 |
| 190 | Trunks and hand-carried luggage | Schedule | Definition | US_to_IPC8 |
| 191 | Electricity: transmission to vehicles | Schedule | Definition | US_to_IPC8 |
| 192 | Clutches and power-stop control | Schedule | Definition | US_to_IPC8 |
| 193 | Conveyors, chutes, skids, guides, and ways | Schedule | Definition | US_to_IPC8 |
| 194 | Check-actuated control mechanisms | Schedule | Definition | US_to_IPC8 |
| 196 | Mineral oils: apparatus | Schedule | Definition | US_to_IPC8 |
| 198 | Conveyors: power-driven | Schedule | Definition | US_to_IPC8 |
| 199 | Type casting | Schedule | Definition | US_to_IPC8 |
| 200 | Electricity: circuit makers and breakers | Schedule | Definition | US_to_IPC8 |
| 201 | Distillation: processes, thermolytic | Schedule | Definition | US_to_IPC8 |
| 202 | Distillation: apparatus | Schedule | Definition | US_to_IPC8 |
| 203 | Distillation: processes, separatory | Schedule | Definition | US_to_IPC8 |
| 204 | Chemistry: electrical and wave energy | Schedule | Definition | US_to_IPC8 |
| 205 | Electrolysis: processes, compositions used therein, and methods of preparing the compositions | Schedule | Definition | US_to_IPC8 |
| 206 | Special receptacle or package | Schedule | Definition | US_to_IPC8 |
| 208 | Mineral oils: processes and products | Schedule | Definition | US_to_IPC8 |
| 209 | Classifying, separating, and assorting solids | Schedule | Definition | US_to_IPC8 |
| 210 | Liquid purification or separation |