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Browse Patents by US Classification

Apparel (Class 2)
Baths, closets, sinks, and spittoons (Class 4)
Beds (Class 5)
Compound tools (Class 7)
Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers (Class 8)
Boot and shoe making (Class 12)
Bridges (Class 14)
Brushing, scrubbing, and general cleaning (Class 15)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.) (Class 16)
Textiles: fiber preparation (Class 19)
Chemistry: physical processes (Class 23)
Buckles, buttons, clasps, etc. (Class 24)
Textiles: cloth finishing (Class 26)
Undertaking (Class 27)
Textiles: manufacturing (Class 28)
Metal working (Class 29)
Cutlery (Class 30)
Geometrical instruments (Class 33)
Drying and gas or vapor contact with solids (Class 34)
Boots, shoes, and leggings (Class 36)
Excavating (Class 37)
Textiles: ironing or smoothing (Class 38)
Card, picture, or sign exhibiting (Class 40)
Firearms (Class 42)
Fishing, trapping, and vermin destroying (Class 43)
Fuel and related compositions (Class 44)
Plant husbandry (Class 47)
Gas: heating and illuminating (Class 48)
Movable or removable closures (Class 49)
Abrasive tool making process, material, or composition (Class 51)
Static structures (e.g., buildings) (Class 52)
Package making (Class 53)
Harness for working animal (Class 54)
Gas separation (Class 55)
Harvesters (Class 56)
Textiles: spinning, twisting, and twining (Class 57)
Chain, staple, and horseshoe making (Class 59)
Power plants (Class 60)
Refrigeration (Class 62)
Jewelry (Class 63)
Glass manufacturing (Class 65)
Textiles: knitting (Class 66)
Textiles: fluid treating apparatus (Class 68)
Leather manufactures (Class 69)
Locks (Class 70)
Chemistry: fertilizers (Class 71)
Metal deforming (Class 72)
Measuring and testing (Class 73)
Machine element or mechanism (Class 74)
Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures (Class 75)
Metal tools and implements, making (Class 76)
Button making (Class 79)
Tools (Class 81)
Turning (Class 82)
Cutting (Class 83)
Music (Class 84)
Ammunition and explosive-charge making (Class 86)
Textiles: braiding, netting, and lace making (Class 87)
Ordnance (Class 89)
Motors: expansible chamber type (Class 91)
Expansible chamber devices (Class 92)
Gas separation: processes (Class 95)
Gas separation: apparatus (Class 96)
Foods and beverages: apparatus (Class 99)
Presses (Class 100)
Printing (Class 101)
Ammunition and explosives (Class 102)
Railways (Class 104)
Railway rolling stock (Class 105)
Compositions: coating or plastic (Class 106)
Horizontally supported planar surfaces (Class 108)
Safes, bank protection, or a related device (Class 109)
Furnaces (Class 110)
Planting (Class 111)
Sewing (Class 112)
Ships (Class 114)
Signals and indicators (Class 116)
Single-crystal, oriented-crystal, and epitaxy growth processes; non-coating apparatus therefor (Class 117)
Coating apparatus (Class 118)
Animal husbandry (Class 119)
Liquid heaters and vaporizers (Class 122)
Internal-combustion engines (Class 123)
Mechanical guns and projectors (Class 124)
Stone working (Class 125)
Stoves and furnaces (Class 126)
Sugar, starch, and carbohydrates (Class 127)
Surgery (Class 128)
Tobacco (Class 131)
Toilet (Class 132)
Cleaning and liquid contact with solids (Class 134)
Tent, canopy, umbrella, or cane (Class 135)
Batteries: thermoelectric and photoelectric (Class 136)
Fluid handling (Class 137)
Pipes and tubular conduits (Class 138)
Textiles: weaving (Class 139)
Wireworking (Class 140)
Fluent material handling, with receiver or receiver coacting means (Class 141)
Wood turning (Class 142)
Woodworking (Class 144)
Coopering (Class 147)
Metal treatment (Class 148)
Explosive and thermic compositions or charges (Class 149)
Purses, wallets, and protective covers (Class 150)
Resilient tires and wheels (Class 152)
Adhesive bonding and miscellaneous chemical manufacture (Class 156)
Wheelwright machines (Class 157)
Concentrating evaporators (Class 159)
Flexible or portable closure, partition, or panel (Class 160)
Paper making and fiber liberation (Class 162)
Needle and pin making (Class 163)
Metal founding (Class 164)
Heat exchange (Class 165)
Wells (Class 166)
Farriery (Class 168)
Fire extinguishers (Class 169)
Unearthing plants or buried objects (Class 171)
Earth working (Class 172)
Tool driving or impacting (Class 173)
Electricity: conductors and insulators (Class 174)
Boring or penetrating the earth (Class 175)
Weighing scales (Class 177)
Telegraphy (Class 178)
Motor vehicles (Class 180)
Acoustics (Class 181)
Fire escape, ladder, or scaffold (Class 182)
Lubrication (Class 184)
Motors: spring, weight, or animal powered (Class 185)
Merchandising (Class 186)
Elevator, industrial lift truck, or stationary lift for vehicle (Class 187)
Brakes (Class 188)
Trunks and hand-carried luggage (Class 190)
Electricity: transmission to vehicles (Class 191)
192 clutches and power-stop control (Class 192)
Conveyors, chutes, skids, guides, and ways (Class 193)
Check-actuated control mechanisms (Class 194)
Mineral oils: apparatus (Class 196)
Conveyors: power-driven (Class 198)
Type casting (Class 199)
Electricity: circuit makers and breakers (Class 200)
Distillation: processes, thermolytic (Class 201)
Distillation: apparatus (Class 202)
Distillation: processes, separatory (Class 203)
Chemistry: electrical and wave energy (Class 204)
Electrolysis: processes, compositions used therein, and methods of preparing the compositions (Class 205)
Special receptacle or package (Class 206)
Mineral oils: processes and products (Class 208)
Classifying, separating, and assorting solids (Class 209)
Liquid purification or separation (Class 210)
Supports: racks (Class 211)
Traversing hoists (Class 212)
Railway draft appliances (Class 213)
Bottles and jars (Class 215)
Etching a substrate: processes (Class 216)
Wooden receptacles (Class 217)
High-voltage switches with arc preventing or extinguishing devices (Class 218)
Electric heating (Class 219)
Receptacles (Class 220)
Article dispensing (Class 221)
Dispensing (Class 222)
Apparel apparatus (Class 223)
Package and article carriers (Class 224)
Severing by tearing or breaking (Class 225)
Advancing material of indeterminate length (Class 226)
Elongated-member-driving apparatus (Class 227)
Metal fusion bonding (Class 228)
Envelopes, wrappers, and paperboard boxes (Class 229)
Whips and whip apparatus (Class 231)
Deposit and collection receptacles (Class 232)
Selective cutting (e.g., punching) (Class 234)
Registers (Class 235)
Automatic temperature and humidity regulation (Class 236)
Heating systems (Class 237)
Railways: surface track (Class 238)
Fluid sprinkling, spraying, and diffusing (Class 239)
Solid material comminution or disintegration (Class 241)
Winding, tensioning, or guiding (Class 242)
Aeronautics and astronautics (Class 244)
Wire fabrics and structure (Class 245)
Railway switches and signals (Class 246)
Supports (Class 248)
Static molds (Class 249)
Radiant energy (Class 250)
Valves and valve actuation (Class 251)
Compositions (Class 252)
Implements or apparatus for applying pushing or pulling force (Class 254)
Fences (Class 256)
Active solid-state devices (e.g., transistors, solid-state diodes) (Class 257)
Railway mail delivery (Class 258)
Chemistry of carbon compounds (Class 260)
Gas and liquid contact apparatus (Class 261)
Plastic and nonmetallic article shaping or treating: processes (Class 264)
Metallurgical apparatus (Class 266)
Spring devices (Class 267)
Work holders (Class 269)
Sheet-material associating (Class 270)
Sheet feeding or delivering (Class 271)
Amusement devices: games (Class 273)
Typesetting (Class 276)
Seal for a joint or juncture (Class 277)
Land vehicles: animal draft appliances (Class 278)
Chucks or sockets (Class 279)
Land vehicles (Class 280)
Books, strips, and leaves (Class 281)
Printed matter (Class 283)
Pipe joints or couplings (Class 285)
Knots and knot tying (Class 289)
Prime-mover dynamo plants (Class 290)
Track sanders (Class 291)
Closure fasteners (Class 292)
Vehicle fenders (Class 293)
Handling: hand and hoist-line implements (Class 294)
Railway wheels and axles (Class 295)
Land vehicles: bodies and tops (Class 296)
Chairs and seats (Class 297)
Land vehicles: dumping (Class 298)
Mining or in situ disintegration of hard material (Class 299)
Brush, broom, and mop making (Class 300)
Land vehicles: wheels and axles (Class 301)
Fluid-pressure and analogous brake systems (Class 303)
Wheel substitutes for land vehicles (Class 305)
Electrical transmission or interconnection systems (Class 307)
Electrical generator or motor structure (Class 310)
Supports: cabinet structure (Class 312)
Electric lamp and discharge devices (Class 313)
Electric lamp and discharge devices: consumable electrodes (Class 314)
Electric lamp and discharge devices: systems (Class 315)
Electricity: motive power systems (Class 318)
Electricity: battery or capacitor charging or discharging (Class 320)
Electricity: single generator systems (Class 322)
Electricity: power supply or regulation systems (Class 323)
Electricity: measuring and testing (Class 324)
Electronic digital logic circuitry (Class 326)
Miscellaneous active electrical nonlinear devices, circuits, and systems (Class 327)
Demodulators (Class 329)
Amplifiers (Class 330)
Oscillators (Class 331)
Modulators (Class 332)
Wave transmission lines and networks (Class 333)
Tuners (Class 334)
Electricity: magnetically operated switches, magnets, and electromagnets (Class 335)
Inductor devices (Class 336)
Electricity: electrothermally or thermally actuated switches (Class 337)
Electrical resistors (Class 338)
Communications: electrical (Class 340)
Coded data generation or conversion (Class 341)
Communications: directive radio wave systems and devices (e.g., radar, radio navigation) (Class 342)
Communications: radio wave antennas (Class 343)
Computer graphics processing and selective visual display systems (Class 345)
Recorders (Class 346)
Incremental printing of symbolic information (Class 347)
Television (Class 348)
Liquid crystal cells, elements and systems (Class 349)
Optics: eye examining, vision testing and correcting (Class 351)
Optics: motion pictures (Class 352)
Optics: image projectors (Class 353)
Photocopying (Class 355)
Optics: measuring and testing (Class 356)
Facsimile and static presentation processing (Class 358)
Optical: systems and elements (Class 359)
Dynamic magnetic information storage or retrieval (Class 360)
Electricity: electrical systems and devices (Class 361)
Illumination (Class 362)
Electric power conversion systems (Class 363)
Static information storage and retrieval (Class 365)
Agitating (Class 366)
Communications, electrical: acoustic wave systems and devices (Class 367)
Horology: time measuring systems or devices (Class 368)
Dynamic information storage or retrieval (Class 369)
Multiplex communications (Class 370)
Coherent light generators (Class 372)
Industrial electric heating furnaces (Class 373)
Thermal measuring and testing (Class 374)
Pulse or digital communications (Class 375)
Induced nuclear reactions: processes, systems, and elements (Class 376)
Electrical pulse counters, pulse dividers, or shift registers: circuits and systems (Class 377)
X-ray or gamma ray systems or devices (Class 378)
Telephonic communications (Class 379)
Cryptography (Class 380)
Electrical audio signal processing systems and devices (Class 381)
Image analysis (Class 382)
Flexible bags (Class 383)
Bearings (Class 384)
Optical waveguides (Class 385)
Motion video signal processing for recording or reproducing (Class 386)
Electricity: motor control systems (Class 388)
Electric resistance heating devices (Class 392)
Photography (Class 396)
Optical communications (Class 398)
Electrophotography (Class 399)
Typewriting machines (Class 400)
Coating implements with material supply (Class 401)
Binder device releasably engaging aperture or notch of sheet (Class 402)
Joints and connections (Class 403)
Road structure, process, or apparatus (Class 404)
Hydraulic and earth engineering (Class 405)
Conveyors: fluid current (Class 406)
Cutters, for shaping (Class 407)
Cutting by use of rotating axially moving tool (Class 408)
Gear cutting, milling, or planing (Class 409)
Freight accommodation on freight carrier (Class 410)
Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener (Class 411)
Bookbinding: process and apparatus (Class 412)
Sheet metal container making (Class 413)
Material or article handling (Class 414)
Rotary kinetic fluid motors or pumps (Class 415)
Fluid reaction surfaces (i.e., impellers) (Class 416)
Pumps (Class 417)
Rotary expansible chamber devices (Class 418)
Powder metallurgy processes (Class 419)
Alloys or metallic compositions (Class 420)
Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing (Class 422)
Chemistry of inorganic compounds (Class 423)
Drug, bio-affecting and body treating compositions (Class 424)
Plastic article or earthenware shaping or treating: apparatus (Class 425)
Food or edible material: processes, compositions, and products (Class 426)
Coating processes (Class 427)
Stock material or miscellaneous articles (Class 428)
Chemistry: electrical current producing apparatus, product, and process (Class 429)
Radiation imagery chemistry: process, composition, or product thereof (Class 430)
Combustion (Class 431)
Heating (Class 432)
Dentistry (Class 433)
Education and demonstration (Class 434)
Chemistry: molecular biology and microbiology (Class 435)
Chemistry: analytical and immunological testing (Class 436)
Semiconductor device manufacturing: process (Class 438)
Electrical connectors (Class 439)
Marine propulsion (Class 440)
Buoys, rafts, and aquatic devices (Class 441)
Fabric (woven, knitted, or nonwoven textile or cloth, etc.) (Class 442)
Electric lamp or space discharge component or device manufacturing (Class 445)
Amusement devices: toys (Class 446)
Bee culture (Class 449)
Foundation garments (Class 450)
Abrading (Class 451)
Butchering (Class 452)
Coin handling (Class 453)
Ventilation (Class 454)
Telecommunications (Class 455)
Crop threshing or separating (Class 460)
Books, strips, and leaves for manifolding (Class 462)
Amusement devices: games (Class 463)
Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts (Class 464)
Threaded, headed fastener, or washer making: process and apparatus (Class 470)
Amusement devices (Class 472)
Games using tangible projectile (Class 473)
Endless belt power transmission systems or components (Class 474)
Planetary gear transmission systems or components (Class 475)
Friction gear transmission systems or components (Class 476)
Interrelated power delivery controls, including engine control (Class 477)
Exercise devices (Class 482)
Tool changing (Class 483)
Roll or roller (Class 492)
Manufacturing container or tube from paper; or other manufacturing from a sheet or web (Class 493)
Imperforate bowl: centrifugal separators (Class 494)
Compositions: ceramic (Class 501)
Catalyst, solid sorbent, or support therefor: product or process of making (Class 502)
Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor (Class 503)
Plant protecting and regulating compositions (Class 504)
Superconductor technology: apparatus, material, process (Class 505)
Combinatorial chemistry technology: method, library, apparatus (Class 506)
Earth boring, well treating, and oil field chemistry (Class 507)
Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions (Class 508)
Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions (Class 510)
Perfume compositions (Class 512)
Drug, bio-affecting and body treating compositions (Class 514)
Colloid systems and wetting agents; subcombinations thereof; processes of (Class 516)
Chemistry: fischer-tropsch processes; or purification or recovery of products thereof (Class 518)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 520)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 521)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 522)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 523)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 524)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 525)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 526)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 527)
Synthetic resins or natural rubbers -- part of the class 520 series (Class 528)
Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof (Class 530)
Organic compounds -- part of the class 532-570 series (Class 532)
Organic compounds -- part of the class 532-570 series (Class 534)
Organic compounds -- part of the class 532-570 series (Class 536)
Organic compounds -- part of the class 532-570 series (Class 540)
Organic compounds -- part of the class 532-570 series (Class 544)
Organic compounds -- part of the class 532-570 series (Class 546)
Organic compounds -- part of the class 532-570 series (Class 548)
Organic compounds -- part of the class 532-570 series (Class 549)
Organic compounds -- part of the class 532-570 series (Class 552)
Organic compounds -- part of the class 532-570 series (Class 554)
Organic compounds -- part of the class 532-570 series (Class 556)
Organic compounds -- part of the class 532-570 series (Class 558)
Organic compounds -- part of the class 532-570 series (Class 560)
Organic compounds -- part of the class 532-570 series (Class 562)
Organic compounds -- part of the class 532-570 series (Class 564)
Organic compounds -- part of the class 532-570 series (Class 568)
Organic compounds -- part of the class 532-570 series (Class 570)
Chemistry of hydrocarbon compounds (Class 585)
Hazardous or toxic waste destruction or containment (Class 588)
Surgery (Class 600)
Surgery: kinesitherapy (Class 601)
Surgery: splint, brace, or bandage (Class 602)
Surgery (Class 604)
Surgery (Class 606)
Surgery: light, thermal, and electrical application (Class 607)
Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor (Class 623)
Data processing: generic control systems or specific applications (Class 700)
Data processing: vehicles, navigation, and relative location (Class 701)
Data processing: measuring, calibrating, or testing (Class 702)
Data processing: structural design, modeling, simulation, and emulation (Class 703)
Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression (Class 704)
Data processing: financial, business practice, management, or cost/price determination (Class 705)
Data processing: artificial intelligence (Class 706)
Data processing: database and file management or data structures (Class 707)
Electrical computers: arithmetic processing and calculating (Class 708)
Electrical computers and digital processing systems: multicomputer data transferring (Class 709)
Electrical computers and digital data processing systems: input/output (Class 710)
Electrical computers and digital processing systems: memory (Class 711)
Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) (Class 712)
Electrical computers and digital processing systems: support (Class 713)
Error detection/correction and fault detection/recovery (Class 714)
Data processing: presentation processing of document, operator interface processing, and screen saver display processing (Class 715)
Computer-aided design and analysis of circuits and semiconductor masks (Class 716)
Data processing: software development, installation, and management (Class 717)
Electrical computers and digital processing systems: virtual machine task or process management or task management/control (Class 718)
Electrical computers and digital processing systems: interprogram communication or interprocess communication (ipc) (Class 719)
Dynamic optical information storage or retrieval (Class 720)
Interactive video distribution systems (Class 725)
Information security (Class 726)
Multicellular living organisms and unmodified parts thereof and related processes (Class 800)
Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] (Class 850)
Robots (Class 901)
Electronic funds transfer (Class 902)
Hybrid electric vehicles (hevs) (Class 903)
Peptide or protein sequence (Class 930)
Horology (Class 968)
Nuclear technology (Class 976)
Nanotechnology (Class 977)
Musical instruments (Class 984)
Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system (Class 987)
Edible products (Class D01)
Apparel and haberdashery (Class D02)
Travel goods and personal belongings (Class D03)
Brushware (Class D04)
Textile or paper yard goods; sheet material (Class D05)
Furnishings (Class D06)
Equipment for preparing or serving food or drink not elsewhere specified (Class D07)
Tools and hardware (Class D08)
Packages and containers for goods (Class D09)
Measuring, testing, or signalling instruments (Class D10)
Jewelry, symbolic insignia, and ornaments (Class D11)
Transportation (Class D12)
Equipment for production, distribution, or transformation of energy (Class D13)
Recording, communication, or information retrieval equipment (Class D14)
Machines not elsewhere specified (Class D15)
Photography and optical equipment (Class D16)
Musical instruments (Class D17)
Printing and office machinery (Class D18)
Office supplies; artists and teachers materials (Class D19)
Sales and advertising equipment (Class D20)
Games, toys, and sports goods (Class D21)
Arms, pyrotechnics, hunting and fishing equipment (Class D22)
Environmental heating and cooling; fluid handling and sanitary equipment (Class D23)
Medical and laboratory equipment (Class D24)
Building units and construction elements (Class D25)
Lighting (Class D26)
Tobacco and smokers' supplies (Class D27)
Cosmetic products and toilet articles (Class D28)
Equipment for safety, protection, and rescue (Class D29)
Animal husbandry (Class D30)
Washing, cleaning, or drying machine (Class D32)
Material or article handling equipment (Class D34)
Miscellaneous (Class D99)
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (Class G9B)
Plants (Class PLT)

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