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Welcome to our August 2010 update!

This month includes a significant upgrade to our patent search engine technology. The new engine provides faster results and supports an advanced syntax mode. For casual users, it provides improved results without using any special syntax. Visit the Resource Center for details.

We're also pleased to announce the addition of the IBM® Redbooks® as a Non-Patent Literature collection. The Redbooks represent a unique source of technical art; we're excited to bring the Library's advanced searching and more-like-this capabilities to this material.

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Browse the Library by International Patent Classification (IPC)
Section A — human necessities
Agriculture: Soil working in agriculture or...   Planting; sowing; fertilising   Harvesting; mowing   Threshing; baling of straw,...   Horticulture; cultivation of...   New plants or processes for...   Manufacture of dairy products   Animal husbandry; care of...   Shoeing of animals   Catching, trapping or scaring...   Preservation of bodies of...   Biocidal, pest repellant, pest...   [+8] [-8]
Foodstuffs; tobacco: Bakers' ovens; machines or...   Machines or equipment for...   Treatment, e.g. preservation,...   Slaughtering   Processing meat, poultry, or...   Preserving, e.g. by canning,...   Dairy products, e.g. milk,...   Edible oils or fats, e.g....   Coffee; tea; their...   Cocoa; cocoa products, e.g....   Protein compositions for...   Fodder   Foods, foodstuffs, or...   Machines or apparatus for...   Shaping or working of...   Manufacture or preparation of...   Machines for making cigars or...   Cigars; cigarettes; tobacco...   Smokers' requisites; match...   [+15] [-15]
Personal or domestic articles: Shirts; underwear; baby linen;...   Corsets; brassières   Outerwear; protective...   Garment fastenings; suspenders   Artificial flowers; wigs;...   Appliances or methods for...   Hats; head coverings   Manufacturing or trimming hats...   Characteristic features of...   Fastenings or attachments for...   Machines, tools, equipment or...   Buttons, pins, buckles, slide...   Jewellery; bracelets; other...   Walking sticks; umbrellas;...   Purses; luggage; hand carried...   Hairdressing or shaving...   Travelling or camp equipment;...   Brushes   Manufacture of brushes   Tables; desks; office...   Chairs; sofas; beds   Furniture specially adapted...   Special furniture, fittings,...   Household or table equipment   Furnishings for windows or...   Kitchen equipment; coffee...   Sanitary equipment not...   Domestic washing or cleaning;...   [+24] [-24]
Health; life-saving; amusement: Diagnosis; surgery;...   Dentistry; apparatus or...   Veterinary instruments,...   Filters implantable into blood...   Transport, personal...   Physical therapy apparatus,...   Containers specially adapted...   Preparations for medical,...   Methods or apparatus for...   Devices for introducing media...   Electrotherapy;...   Specific therapeutic activity...   Specific use of cosmetics or...   Devices, apparatus or methods...   Fire-fighting   Chemical means for...   Apparatus for physical...   Skates; skis; roller skates;...   Bowling-alleys; bowling games;...   Card, board, or roulette...   Merry-go-rounds; swings;...   Toys, e.g. tops, dolls, hoops,...   Devices for theatres,...   Racing; riding sports;...   Subject matter not otherwise...   [+21] [-21]
Section B — performing operations; transporting
Separating; mixing: Boiling; boiling apparatus   Separation   Mixing, e.g. dissolving,...   Chemical or physical...   Chemical or physical...   Preparing grain for milling;...   Crushing, pulverising, or...   Separating solid materials...   Magnetic or electrostatic...   Flotation; differential...   Centrifuges   Apparatus using free vortex...   Spraying apparatus; atomising...   Apparatus for applying liquids...   Processes for applying liquids...   Generating or transmitting...   Separating solids from solids...   Postal sorting; sorting...   Cleaning in general;...   Disposal of solid waste   Reclamation of contaminated...   [+17] [-17]
Shaping: Rolling of metal   Manufacture of metal sheets,...   Working or processing of sheet...   Working or processing of wire   Making needles, pins, or nails   Making particular metal...   Forging; hammering; pressing;...   Making forged or pressed...   Making chains   Foundry moulding   Casting of metals; casting of...   Working metallic powder;...   Turning; boring   Milling   Planing; slotting; shearing;...   Making gears or toothed racks   Thread cutting; working of...   Working of metal by the action...   Soldering or unsoldering;...   Other working of metal;...   Details, components, or...   Machines, devices, or...   Abrasive or related blasting...   Tools for grinding, buffing,...   Tools or bench devices not...   Hand-held nailing or stapling...   Percussive tools   Combination or multi-purpose...   Handles for hand implements   Workshop equipment, e.g. for...   Manipulators; chambers...   Hand-held cutting tools not...   Cutting; details common to...   Perforating; punching;...   Saws; components or...   Planing, drilling, milling,...   Working veneer or plywood   Dovetailed work; tenons;...   Accessory machines or...   Bending; cooperage;...   Mechanical working of cane,...   Processes, apparatus or...   Removing bark or vestiges of...   Working of wood not provided...   Manufacture by dry processes...   Shaping clay or other ceramic...   Preparing clay; producing...   Working stone or stone-like...   Preparation or pretreatment of...   Shaping or joining of...   Producing particular articles...   Indexing scheme associated...   Indexing scheme associated...   Presses in general; presses...   Making boxes, cartons,...   Making wound articles, e.g....   Making other paper articles   Mechanical working or...   Layered products, i.e....   [+55] [-55]
Printing: Machines or accessories for...   Processes for the manufacture...   Apparatus for the mechanical...   Printing machines or presses   Apparatus for bronze printing,...   Typewriters; selective...   Stamps; stamping or numbering...   Apparatus or devices for...   Printing, duplicating,...   Printing plates or foils;...   Permanently attaching together...   Bookbinding   Books; book covers; loose...   Sheets temporarily attached...   Implements for writing or...   Articles for writing or...   Bureau accessories not...   Machines, apparatus, or tools...   Producing decorative effects;...   Painting or artistic drawing,...   Special designs or pictures   [+17] [-17]
Transporting: Vehicle wheels; castors;...   Vehicle tyres; tyre inflation;...   Vehicle connections   Vehicles for use both on rail...   Vehicle suspension...   Arrangements or adaptations of...   Windows, windscreens,...   Arrangement or mounting of...   Electric equipment or...   Power supply lines, or devices...   Vehicle passenger...   Vehicles adapted for load...   Arrangement of signalling or...   Vehicles, vehicle fittings, or...   Servicing, cleaning,...   Vehicle brake control systems...   Air-cushion vehicles   Conjoint control of vehicle...   Railway systems; equipment...   Locomotives; motor railcars   Body details or kinds of...   Rail vehicle suspensions, e.g....   Couplings specially adapted...   Brakes or other retarding...   Shifting or shunting of rail...   Other auxiliary equipment for...   Guiding railway traffic;...   Hand-propelled vehicles, e.g....   Vehicles drawn by animals   Motor vehicles; trailers   Cycle stands; supports or...   Cycle saddles or seats;...   Cycles; cycle frames; cycle...   Brakes specially adapted for...   Rider propulsion of wheeled...   Ships or other waterborne...   Launching, hauling-out, or...   Offensive or defensive...   Marine propulsion or steering   Auxiliaries on vessels   Lighter-than-air aircraft   Aeroplanes; helicopters   Equipment for fitting in or to...   Ground or...   Cosmonautics; vehicles or...   Machines, apparatus or devices...   Labelling or tagging machines,...   Containers for storage or...   Gathering or removal of...   Transport or storage devices,...   Handling thin or filamentary...   Elevators; escalators or...   Cranes; load-engaging elements...   Capstans; winches; tackles,...   Hoisting, lifting, hauling, or...   Applying closure members to...   Filling with liquids or...   Dispensing, delivering, or...   Harness; devices used in...   Saddles; stirrups   Making articles from leather,...   Methods, equipment, or...   [+58] [-58]
Micro-structural technology; nano-technology: Micro-structural devices or...   Processes or apparatus...   Nano-structures; manufacture...   Subject matter not otherwise...  
Section C — chemistry; metallurgy [+] [-]
Chemistry: Non-metallic elements;...   Ammonia; cyanogen; compounds...   Compounds of alkali metals,...   Compounds of the metals...   Compounds containing metals...   Treatment of water, waste...   Manufacture or shaping of...   Chemical composition of...   Lime; magnesia; slag; cements;...   Phosphatic fertilisers   Nitrogenous fertilisers   Inorganic fertilisers not...   Organic fertilisers not...   Mixtures of fertilisers...   Explosive or thermic...   Detonating or priming devices;...   Means for generating smoke or...   Matches; manufacture of...   General methods of organic...   Acyclic or carbocyclic...   Heterocyclic compounds   Acyclic, carbocyclic, or...   Compounds of unknown...   Sugars; derivatives thereof;...   Steroids   Peptides   Polysaccharides; derivatives...   Treatment or chemical...   Macromolecular compounds...   Macromolecular compounds...   Derivatives of natural...   Working-up; general processes...   Use of inorganic or...   Compositions of macromolecular...   Organic dyes or...   Treatment of inorganic...   Coating compositions, e.g....   Natural resins; french polish;...   Polishing compositions other...   Preparation of glue or...   Adhesives;...   Materials for applications not...   Destructive distillation of...   Working-up tar, pitch,...   Drying or working-up of peat   Cracking hydrocarbon oils;...   Production of acetylene by wet...   Production of producer gas,...   Purifying or modifying the...   Fuels not otherwise provided...   Lubricating compositions; use...   Indexing scheme associated...   Producing, e.g. by pressing...   Fatty acids from fats, oils or...   Detergent compositions; use of...   Brewing of beer   Recovery of by-products of...   Wine; other alcoholic...   Pasteurisation, sterilisation,...   Vinegar; its preparation   Pitching or depitching...   Apparatus for enzymology or...   Micro-organisms or enzymes;...   Fermentation or enzyme-using...   Measuring or testing processes...   Indexing scheme associated...   Processes using enzymes or...   Cutting mills; shredding...   Production or purification of...   Preparation or processing of...   Evaporation apparatus; boiling...   Cutting machines for sugar;...   Extraction of sugar from...   Glucose; invert sugar;...   Mechanical treatment or...   Chemical treatment of skins,...   [+72] [-72]
Metallurgy: Manufacture of iron or steel   Processing of pig-iron, e.g....   Modifying the physical...   Production or refining of...   Alloys   Changing the physical...   Coating metallic material;...   Enamelling of, or applying a...   Non-mechanical removal of...   Cleaning or de-greasing of...   Electrolytic or...   Processes for the electrolytic...   Processes for the electrolytic...   Processes for the electrolytic...   Single-crystal growth;...   [+12] [-12]
Combinatorial technology: Combinatorial chemistry;...   Subject matter not otherwise...  
Section D — textiles; paper [+] [-]
Textiles or flexible materials not otherwise provided for: Mechanical treatment of...   Chemical treatment of natural...   Mechanical methods or...   Chemical features in the...   Preliminary treatment of...   Spinning or twisting   Crimping or curling fibres,...   Warping, beaming, or leasing   Finishing or dressing of...   Shedding mechanisms; pattern...   Woven fabrics; methods of...   Auxiliary weaving apparatus;...   Knitting   Braiding or manufacture of...   Trimmings; ribbons, tapes, or...   Making nets by knotting of...   Making textile fabrics, e.g....   Sewing   Embroidering; tufting   Treating textile materials by...   Finishing, dressing,...   Laundering, drying, ironing,...   Mechanical or pressure...   Marking, inspecting, seaming,...   Pleating, kilting, or...   Bleaching, e.g. optical...   Treatment, not provided for...   Wall, floor, or like covering...   Dyeing or printing textiles;...   Decorating textiles   Ropes or cables in general   [+27] [-27]
Paper: Fibrous raw materials or their...   Production of cellulose by...   Treatment of the materials...   Paper-making machines; methods...   Calenders; accessories for...   Pulp compositions; preparation...   Fibreboard; manufacture of...   Subject matter not otherwise...   [+4] [-4]
Section E — fixed constructions [+] [-]
Building: Permanent way; permanent-way...   Construction of, or surfaces...   Bridges   Additional work, such as...   Street cleaning; cleaning of...   Hydraulic engineering   Ship-lifting devices or...   Foundations; excavations;...   Dredging; soil-shifting   Installations or methods for...   Domestic plumbing...   Water-closets or urinals with...   Sewers; cesspools   General building...   Structural elements; building...   Roof coverings; sky-lights;...   Finishing work on buildings,...   Scaffolding; forms;...   Buildings or like structures...   Locks; accessories therefor;...   Bolts or fastening devices for...   Hinges or other suspension...   Devices for moving wings into...   Safes or strong-rooms for...   Fixed or movable closures for...   Ladders   [+22] [-22]
Earth or rock drilling; mining: Earth or rock drilling;...   Mining or quarrying   Shafts; tunnels; galleries;...   Safety devices, transport,...   Subject matter not otherwise...   [+1] [-1]
Section F — mechanical engineering; lighting; heating; weapons; blasting [+] [-]
Engines or pumps: Machines or engines, in...   Rotary-piston or...   Non-positive-displacement...   Steam engine plants; steam...   Cyclically operating valves...   Lubricating of machines or...   Gas-flow silencers or exhaust...   Cooling of machines or engines...   Internal-combustion piston...   Gas-turbine plants; air...   Controlling combustion engines   Cylinders, pistons, or casings...   Hot-gas or combustion-product...   Jet-propulsion plants   Supplying combustion engines...   Starting of combustion...   Ignition, other than...   Machines or engines for...   Positive-displacement engines...   Wind motors   Spring, weight, inertia, or...   Producing a reactive...   Positive-displacement machines...   Rotary-piston, or...   Non-positive-displacement...   Pumping of fluid by direct...   [+22] [-22]
Engineering in general: Systems acting by means of...   Fluid-circuit elements...   Fluid dynamics, i.e. methods...   Devices for fastening or...   Shafts; flexible shafts;...   Couplings for transmitting...   Springs; shock-absorbers;...   Belts, cables, or ropes,...   Gearing   Pistons; cylinders; pressure...   Valves; taps; cocks;...   Pipes; joints or fittings for...   Frames, casings, or beds, of...   Lubricating   Safety devices in general   Constructional elements in...   Steam traps or like apparatus...   Gas-holders of variable...   Vessels for containing or...   Pipe-line systems; pipe-lines   [+16] [-16]
Lighting; heating: Incandescent mantles; other...   Light sources not otherwise...   Lighting devices or systems...   Non-portable lighting devices...   Functional features or details...   Indexing scheme associated...   Indexing scheme associated...   Methods of steam generation;...   Preheating, or accumulating...   Superheating of steam   Methods or apparatus for...   Methods or apparatus for...   Burners   Cremation furnaces; consuming...   Grates; cleaning or raking...   Removal or treatment of...   Feeding fuel to combustion...   Air supply; draught-inducing;...   Constructional details of...   Regulating or controlling...   Ignition; extinguishing...   Generating combustion products...   Domestic stoves or ranges for...   Other domestic stoves or...   Domestic- or space-heating...   Air-conditioning;...   Fluid heaters, e.g. water or...   Production or use of heat not...   Refrigeration machines,...   Production, working, storing...   Refrigerators; cold rooms;...   Liquefaction, solidification,...   Drying solid materials or...   Furnaces, kilns, ovens, or...   Details or accessories of...   Steam or vapour condensers   Heat-exchange apparatus, not...   Heat-exchange apparatus, not...   Details of heat-exchange or...   Cleaning of internal or...   [+36] [-36]
Weapons; blasting: Functional features or details...   Weapons for projecting...   Smallarms, e.g. pistols,...   Apparatus for launching...   Weapon sights; aiming   Armour; armoured turrets;...   Targets; target ranges; bullet...   Explosive charges, e.g. for...   Ammunition fuzes; arming or...   Blasting   Subject matter not otherwise...   [+7] [-7]
Section G — physics [+] [-]
Instruments: Measuring length, thickness or...   Measuring distances, levels or...   Measuring not specially...   Measuring volume, volume flow,...   Weighing   Measurement of mechanical...   Measurement of intensity,...   Measuring temperature;...   Measuring force, stress,...   Testing static or dynamic...   Investigating or analysing...   Measuring linear or angular...   Scanning-probe techniques or...   Measuring electric variables;...   Radio direction-finding; radio...   Measurement of nuclear or...   Geophysics; gravitational...   Meteorology   Optical elements, systems, or...   Spectacles; sunglasses or...   Devices or arrangements, the...   Apparatus or arrangements for...   Photosensitive materials for...   Apparatus for processing...   Photomechanical production of...   Electrography;...   Holographic processes or...   Mechanically-driven clocks or...   Electromechanical clocks or...   Apparatus or tools specially...   Time-interval measuring   Electronic time-pieces   Control or regulating systems...   Systems for controlling or...   Systems for regulating...   Control devices or systems...   Digital computers in which all...   Digital fluid-pressure...   Optical computing devices   Electric digital data...   Analogue computers   Hybrid computing arrangements   Recognition of data;...   Counting mechanisms; counting...   Computer systems based on...   Data processing systems or...   Image data processing or...   Ticket-issuing apparatus;...   Time or attendance registers;...   Sorting, testing, changing,...   Coin-freed or like apparatus   Registering the receipt of...   Signalling or calling systems;...   Transmission systems for...   Traffic control systems   Educational or demonstration...   Ciphering or deciphering...   Railway or like time or fare...   Displaying; advertising;...   Arrangements or circuits for...   Organs; harmoniums or like...   Pianos, harpsichords, spinets...   Stringed musical instruments;...   Automatic musical instruments   Aids for music; supports for...   Electrophonic musical...   Sound-producing devices;...   Speech analysis or synthesis;...   Information storage based on...   Static stores   Details of instruments, or...   [+68] [-68]
Nucleonics: Fusion reactors   Nuclear reactors   Nuclear power plant   Protection against...   Conversion of chemical...   Obtaining energy from...   Nuclear explosives;...   Techniques for handling...   Subject matter not otherwise...   [+5] [-5]
Section H — electricity [+] [-]
Cables; conductors;...   Resistors   Magnets; inductances;...   Capacitors; capacitors,...   Electric switches; relays;...   Electric discharge tubes or...   Electric incandescent lamps   Semiconductor devices;...   Processes or means, e.g....   Waveguides; resonators, lines...   Aerials   Electrically-conductive...   Devices using stimulated...   Spark gaps; overvoltage...   Boards, substations, or...   Installation of electric...   Emergency protective circuit...   Circuit arrangements or...   Dynamo-electric machines   Apparatus for conversion...   Electric machines not...   Control or regulation of...   Generation of oscillations,...   Modulation   Demodulation or transference...   Amplifiers   Control of amplification   Impedance networks, e.g....   Tuning resonant circuits;...   Pulse technique   Automatic control, starting,...   Coding, decoding or code...   Transmission   Broadcast communication   Multiplex communication   Secret communication; jamming...   Transmission of digital...   Telephonic communication   Pictorial communication, e.g....   Selecting   Loudspeakers, microphones,...   Stereophonic systems   Wireless communication...   Electric heating; electric...   Electric circuits or apparatus...   Static electricity;...   X-ray technique   Plasma technique; production...   Printed circuits; casings or...   Subject matter not otherwise...   [+46] [-46]