Select a category
- Presses 152
- Printing 343
- Ammunition and Explosives 281
- Railways 130
- Railway Rolling Stock 150
- Compositions: Coating or Plastic 591
- Horizontally Supported Planar Surfaces 236
- Safes, Bank Protection, or a Related Device 22
- Furnaces 105
- Planting 108
- Sewing 132
- Ships 421
- Signals and Indicators 99
- Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 240
- Coating Apparatus 670
- Animal Husbandry 606
- Boot and Shoe Making 28
- Liquid Heaters and Vaporizers 99
- Internal-Combustion Engines 2119
- Mechanical Guns and Projectors 249
- Stone Working 61
- Stoves and Furnaces 335
- Sugar, Starch, and Carbohydrates 43
- Surgery 1208
- Tobacco 193
- Toilet 267
- Cleaning and Liquid Contact With Solids 762
- Tent, Canopy, Umbrella, or Cane 202
- Batteries: Thermoelectric and Photoelectric 631
- Fluid Handling 1350
- Pipes and Tubular Conduits 256
- Textiles: Weaving 45
- Bridges 99
- Wireworking 22
- Fluent Material Handling, With Receiver or Receiver Coacting Means 423
- Wood Turning 2
- Woodworking 38
- Coopering 1
- Metal Treatment 394
- Explosive and Thermic Compositions or Charges 82
- Brushing, Scrubbing, and General Cleaning 1169
- Purses, Wallets, and Protective Covers 39
- Resilient Tires and Wheels 355
- Adhesive Bonding and Miscellaneous Chemical Manufacture 1737
- Wheelwright Machines 34
- Concentrating Evaporators 18
- Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 432
- Flexible or Portable Closure, Partition, or Panel 289
- Paper Making and Fiber Liberation 456
- Metal Founding 236
- Heat Exchange 402
- Wells 1948
- Farriery 4
- Fire Extinguishers 167
- Unearthing Plants or Buried Objects 6
- Earth Working 169
- Tool Driving or Impacting 224
- Electricity: Conductors and Insulators 1423
- Boring or Penetrating the Earth 569
- Weighing Scales 99
- Telegraphy 36
- Motor Vehicles 1369
- Acoustics 390
- Fire Escape, Ladder, or Scaffold 287
- Lubrication 135
- Motors: Spring, Weight, or Animal Powered 6
- Merchandising 4
- Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 218
- Brakes 630
- Textiles: Fiber Preparation 19
- Trunks and Hand-Carried Luggage 53
- Electricity: Transmission to Vehicles 46
- Clutches and Power-Stop Control 445
- Conveyors, Chutes, Skids, Guides, and Ways 42
- Check-Actuated Control Mechanisms 141
- Mineral Oils: Apparatus 16
- Conveyors: Power-Driven 754
- Apparel 615
- Electricity: Circuit Makers and Breakers 586
- Distillation: Processes, Thermolytic 27
- Distillation: Apparatus 68
- Distillation: Processes, Separatory 76
- Chemistry: Electrical and Wave Energy 949
- Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 470
- Special Receptacle or Package 937
- Mineral Oils: Processes and Products 350
- Classifying, Separating, and Assorting Solids 329
- Liquid Purification or Separation 1655
- Supports: Racks 411
- Traversing Hoists 73
- Railway Draft Appliances 34
- Bottles and Jars 319
- Etching a Substrate: Processes 629
- High-Voltage Switches With Arc Preventing or Extinguishing Devices 114
- Electric Heating 1527
- Receptacles 1179
- Article Dispensing 171
- Dispensing 974
- Apparel Apparatus 54
- Package and Article Carriers 419
- Severing by Tearing or Breaking 38
- Advancing Material of Indeterminate Length 8
- Elongated-Member-Driving Apparatus 420
- Metal Fusion Bonding 305
- Envelopes, Wrappers, and Paperboard Boxes 229
- Chemistry: Physical Processes 16
- Deposit and Collection Receptacles 25
- Selective Cutting (e.g., Punching) 2
- Registers 1922
- Automatic Temperature and Humidity Regulation 128
- Heating Systems 36
- Railways: Surface Track 53
- Fluid Sprinkling, Spraying, and Diffusing 696
- Buckles, Buttons, Clasps, Etc. 459
- Solid Material Comminution or Disintegration 438
- Winding, Tensioning, or Guiding 308
- Aeronautics and Astronautics 1194
- Wire Fabrics and Structure 1
- Railway Switches and Signals 59
- Supports 1078
- Static Molds 44
- Radiant Energy 4007
- Valves and Valve Actuation 520
- Compositions 1155
- Implements or Apparatus for Applying Pushing or Pulling Force 266
- Fences 69
- Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 13218
- Textiles: Cloth Finishing 6
- Gas and Liquid Contact Apparatus 217
- Plastic and Nonmetallic Article Shaping or Treating: Processes 1530
- Metallurgical Apparatus 118
- Spring Devices 223
- Work Holders 338
- Undertaking 37
- Sheet-Material Associating 151
- Sheet Feeding or Delivering 823
- Amusement Devices: Games 375
- Seal for a Joint or Juncture 292
- Chucks or Sockets 71
- Textiles: Manufacturing 28
- Land Vehicles 2360
- Books, Strips, and Leaves 23
- Printed Matter 86
- Pipe Joints or Couplings 367
- Knots and Knot Tying 13
- Metal Working 2607
- Prime-Mover Dynamo Plants 731
- Track Sanders 3
- Closure Fasteners 406
- Vehicle Fenders 86
- Handling: Hand and Hoist-Line Implements 407
- Railway Wheels and Axles 3
- Land Vehicles: Bodies and Tops 1297
- Chairs and Seats 1059
- Land Vehicles: Dumping 26
- Mining or in Situ Disintegration of Hard Material 167
- Cutlery 431
- Brush, Broom, and Mop Making 22
- Land Vehicles: Wheels and Axles 123
- Fluid-Pressure and Analogous Brake Systems 214
- Wheel Substitutes for Land Vehicles 56
- Electrical Transmission or Interconnection Systems 1022
- Electrical Generator or Motor Structure 1755
- Supports: Cabinet Structure 476
- Electric Lamp and Discharge Devices 1076
- Electric Lamp and Discharge Devices: Consumable Electrodes 1
- Electric Lamp and Discharge Devices: Systems 1935
- Electricity: Motive Power Systems 1196
- Electricity: Battery or Capacitor Charging or Discharging 1026
- Electricity: Single Generator Systems 95
- Electricity: Power Supply or Regulation Systems 1048
- Electricity: Measuring and Testing 2949
- Electronic Digital Logic Circuitry 531
- Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 2577
- Demodulators 13
- Geometrical Instruments 416
- Amplifiers 768
- Oscillators 481
- Modulators 47
- Wave Transmission Lines and Networks 575
- Tuners 3
- Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 404
- Inductor Devices 342
- Electricity: Electrothermally or Thermally Actuated Switches 47
- Electrical Resistors 90
- Drying and Gas or Vapor Contact With Solids 333
- Communications: Electrical 4244
- Coded Data Generation or Conversion 1061
- Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 816
- Communications: Radio Wave Antennas 1355
- Computer Graphics Processing and Selective Visual Display Systems 9081
- Recorders 4
- Incremental Printing of Symbolic Information 3781
- Television 6952
- Liquid Crystal Cells, Elements and Systems 2239
- Optics: Eye Examining, Vision Testing and Correcting 728
- Optics: Motion Pictures 16
- Optics: Image Projectors 634
- Photocopying 621
- Optics: Measuring and Testing 2290
- Facsimile and Static Presentation Processing 4710
- Optical: Systems and Elements 3106
- Boots, Shoes, and Leggings 432
- Dynamic Magnetic Information Storage or Retrieval 1616
- Electricity: Electrical Systems and Devices 4188
- Illumination 3321
- Electric Power Conversion Systems 999
- Static Information Storage and Retrieval 4067
- Agitating 321
- Communications, Electrical: Acoustic Wave Systems and Devices 545
- Horology: Time Measuring Systems or Devices 324
- Dynamic Information Storage or Retrieval 860
- Excavating 134
- Multiplex Communications 15749
- Coherent Light Generators 696
- Industrial Electric Heating Furnaces 26
- Thermal Measuring and Testing 363
- Pulse or Digital Communications 6453
- Induced Nuclear Reactions: Processes, Systems, and Elements 289
- Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 88
- X-Ray or Gamma Ray Systems or Devices 834
- Telephonic Communications 2256
- Textiles: Ironing or Smoothing 59
- Cryptography 1263
- Electrical Audio Signal Processing Systems and Devices 2240
- Image Analysis 7237
- Flexible Bags 151
- Bearings 645
- Optical Waveguides 1792
- Motion Video Signal Processing for Recording or Reproducing 1219
- Electricity: Motor Control Systems 3
- Electric Resistance Heating Devices 171
- Photography 665
- Optical Communications 1497
- Electrophotography 3145
- Baths, Closets, Sinks, and Spittoons 394
- Card, Picture, or Sign Exhibiting 374
- Typewriting Machines 297
- Coating Implements With Material Supply 309
- Binder Device Releasably Engaging Aperture or Notch of Sheet 25
- Joints and Connections 260
- Road Structure, Process, or Apparatus 274
- Hydraulic and Earth Engineering 589
- Conveyors: Fluid Current 64
- Cutters, for Shaping 187
- Cutting by Use of Rotating Axially Moving Tool 207
- Gear Cutting, Milling, or Planing 129
- Freight Accommodation on Freight Carrier 163
- Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 373
- Bookbinding: Process and Apparatus 24
- Sheet Metal Container Making 6
- Material or Article Handling 511
- Rotary Kinetic Fluid Motors or Pumps 1138
- Fluid Reaction Surfaces (i.e., Impellers) 825
- Pumps 895
- Rotary Expansible Chamber Devices 264
- Powder Metallurgy Processes 73
- Firearms 536
- Alloys or Metallic Compositions 83
- Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 1924
- Chemistry of Inorganic Compounds 1157
- Drug, Bio-Affecting and Body Treating Compositions 7181
- Plastic Article or Earthenware Shaping or Treating: Apparatus 806
- Food or Edible Material: Processes, Compositions, and Products 881
- Coating Processes 1684
- Stock Material or Miscellaneous Articles 3490
- Chemistry: Electrical Current Producing Apparatus, Product, and Process 3147
- Fishing, Trapping, and Vermin Destroying 271
- Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1838
- Combustion 185
- Heating 60
- Dentistry 450
- Education and Demonstration 668
- Chemistry: Molecular Biology and Microbiology 5731
- Chemistry: Analytical and Immunological Testing 914
- Semiconductor Device Manufacturing: Process 8395
- Electrical Connectors 2528
- Fuel and Related Compositions 235
- Marine Propulsion 201
- Buoys, Rafts, and Aquatic Devices 113
- Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 160
- Electric Lamp or Space Discharge Component or Device Manufacturing 152
- Amusement Devices: Toys 301
- Bee Culture 10
- Foundation Garments 95
- Abrading 606
- Butchering 158
- Coin Handling 18
- Ventilation 186
- Telecommunications 12189
- Crop Threshing or Separating 43
- Books, Strips, and Leaves for Manifolding 3
- Amusement Devices: Computer, Video Games, Simulated Games, Other 2787
- Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 198
- Plant Husbandry 243
- Threaded, Headed Fastener, or Washer Making: Process and Apparatus 8
- Amusement Devices 138
- Games Using Tangible Projectile 1256
- Endless Belt Power Transmission Systems or Components 212
- Planetary Gear Transmission Systems or Components 819
- Friction Gear Transmission Systems or Components 29
- Interrelated Power Delivery Controls, Including Engine Control 434
- Gas: Heating and Illuminating 218
- Exercise Devices 650
- Tool Changing 31
- Movable or Removable Closures 436
- Roll or Roller 36
- Manufacturing Container or Tube From Paper; Or Other Manufacturing From a Sheet or Web 127
- Imperforate Bowl: Centrifugal Separators 74
- Beds 715
- Compositions: Ceramic 176
- Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 693
- Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 86
- Plant Protecting and Regulating Compositions 362
- Superconductor Technology: Apparatus, Material, Process 127
- Combinatorial Chemistry Technology: Method, Library, Apparatus 205
- Earth Boring, Well Treating, and Oil Field Chemistry 200
- Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 313
- Abrasive Tool Making Process, Material, or Composition 127
- Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 463
- Perfume Compositions 41
- Drugs: Designated Organic Active Ingredient Containing 8391
- Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes Of 53
- Chemistry: Fischer-Tropsch Processes; Or Purification or Recovery of Products Thereof 104
- Static Structures (e.g., Buildings) 2354
- Resins or Rubbers: Polymers, Waste and Cellular Products 283
- Synthetic Resins: Compositions to Be Polymerized or Modified by Wave Energy 196
- Synthetic Resins: Processes of Preparing Solid Polymer Compositions 528
- Synthetic Resins: Preparation of Solid Polymer or Condensation Products 1377
- Synthetic Resins: Ethylenically Unsaturated Reactants, Mixing of Solid Polymers 920
- Resins or Natural Rubbers: Polymerization Processes 536
- Resins or Rubbers From Proteine, Carbohydrate, Lignin and Other Reactants 13
- Resins or Natural Rubbers From Plant Material, Boron, Ketone, Silicon and Other Reactants 785
- Package Making 374
- Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1096
- Organic Compounds 1
- Organic Compounds: Noble Gas, Radioactive Metal, Rare Earth Containing, Azo, Diazo, Diazooxide 14
- Organic Compounds: Carbohydrates or Derivatives 860
- Harness for Working Animal 13
- Organic Compounds: Azaporphyrins, Porphyrins and Other 140
- Carbon Compounds Containing a Hetero Ring Having Nitrogen as the Only Ring Hetero Atoms 497
- Carbon Compounds Containing a Six-Membered Hetero Ring: One Nitrogen and Five Carbons 766
- Organic Compounds: Hetero Ring Is Five-Membered, Chalcogen or Nitrogen Atoms 507
- Carbon Compounds: Chalcogen or Nitrogen Are the Only Ring Hetero Atoms 431
- Gas Separation 432
- Organic Compounds: Azides, Acyclic Carbon, Tetracyclo Naphthacene, Other 18
- Organic Compounds: Fatty Compounds Having an Acid Moiety 165
- Organic Compounds: Heavy Metal, Aluminium, Silicon Containing 213
- Organic Compounds: Thioimidate, Imidate, Thiocyanate Esters, Other 97
- Harvesters 200
- Organic Compounds: Carboxylic Acid, Hypohalite or Perhypohalite, Hyponitrite Esters, Other 268
- Organic Compounds: Persulphonic, Boron, Phosphorus Acids or Salts Therof, Other 285
- Amino Nitrogen Containing Organic Compounds 353
- Phosphorus, Oxygen, Sulfur, Boron Containing Organic Compounds 489
- Textiles: Spinning, Twisting, and Twining 73
- Halogen Containing Organic Compounds 107
- Chemistry of Hydrocarbon Compounds 545
- Hazardous or Toxic Waste Destruction or Containment 67
- Chain, Staple, and Horseshoe Making 52
- Power Plants 2693
- Surgery: Diagnostic Testing, Reflectors, Lamps for Illumination 5334
- Surgery: Kinesitherapy 283
- Surgery: Splint, Brace, or Bandage 355
- Surgery: Blood and Fluids Transfer, Irrigation, Aspiration, Other 3658
- Surgery: Instruments, Stabilizers, Toolkits 4890
- Surgery: Light, Thermal, and Electrical Application 2620
- Refrigeration 1143
- Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2364
- Jewelry 48
- Glass Manufacturing 326
- Textiles: Knitting 49
- Textiles: Fluid Treating Apparatus 200
- Leather Manufactures 7
- Compound Tools 34
- Locks 300
- Data Processing: Generic Control Systems or Specific Applications 2889
- Data Processing: Vehicles, Navigation, and Relative Location 6489
- Data Processing: Measuring, Calibrating, or Testing 2540
- Data Processing: Structural Design, Modeling, Simulation, and Emulation 1276
- Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression / Decompression 2212
- Data Processing: Financial, Business Practice, Management, or Cost / Price Determination 8260
- Data Processing: Artificial Intelligence 1450
- Data Processing: Database and File Management or Data Structures 8078
- Electrical Computers: Arithmetic Processing and Calculating 592
- Electrical Computers and Digital Processing Systems: Multicomputer Data Transferring 9403
- Chemistry: Fertilizers 87
- Electrical Computers and Digital Data Processing Systems: Input / Output 1859
- Electrical Computers and Digital Processing Systems: Memory 3818
- Electrical Computers and Digital Processing Systems: Processing Architectures and Instruction Processing (e.g., Processors) 542
- Electrical Computers and Digital Processing Systems: Support 4696
- Error Detection / Correction and Fault Detection / Recovery 3889
- Data Processing: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing 3927
- Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 1925
- Data Processing: Software Development, Installation, and Management 3234
- Electrical Computers and Digital Processing Systems: Virtual Machine Task or Process Management or Task Management / Control 1595
- Electrical Computers and Digital Processing Systems: Interprogram Communication or Interprocess Communication (Ipc) 786
- Metal Deforming 513
- Dynamic Optical Information Storage or Retrieval 176
- Interactive Video Distribution Systems 2782
- Information Security 5375
- Measuring and Testing 3103
- Machine Element or Mechanism 1051
- Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 288
- Metal Tools and Implements, Making 20
- Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 288
- Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2202
- Tools 431
- Turning 83
- Cutting 401
- Music 655
- Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy (Spm) 117
- Ammunition and Explosive-Charge Making 29
- Textiles: Braiding, Netting, and Lace Making 34
- Ordnance 393
- Motors: Expansible Chamber Type 69
- Expansible Chamber Devices 129
- Peptide or Protein Sequence 1
- Gas Separation: Processes 627
- Gas Separation: Apparatus 401
- Nanotechnology 5
- Foods and Beverages: Apparatus 537
- Edible Products 184
- Measuring, Testing, or Signalling Instruments 963
- Jewelry, Symbolic Insignia, and Ornaments 719
- Transportation 2328
- Equipment for Production, Distribution, or Transformation of Energy 1723
- Recording, Communication, or Information Retrieval Equipment 5002
- Machines Not Elsewhere Specified 1158
- Photography and Optical Equipment 785
- Musical Instruments: Percussion, String, Keyboard Type, Other 74
- Printing and Office Machinery 259
- Office Supplies; Artists and Teachers Materials 383
- Apparel and Haberdashery 1314
- Sales and Advertising Equipment 210
- Games, Toys, and Sports Goods 1375
- Arms, Pyrotechnics, Hunting and Fishing Equipment 523
- Environmental Heating and Cooling; Fluid Handling and Sanitary Equipment 1672
- Medical and Laboratory Equipment 2028
- Building Units and Construction Elements 623
- Lighting 1650
- Tobacco and Smokers' Supplies 67
- Cosmetic Products and Toilet Articles 428
- Equipment for Safety, Protection, and Rescue 216
- Travel Goods and Personal Belongings 976
- Animal Husbandry: Bowl, Shelter, Pen, Feederer or Waterer, Other 373
- Washing, Cleaning, or Drying Machine 575
- Material or Article Handling Equipment 225
- Brushware 226
- Textile or Paper Yard Goods; Sheet Material 168
- Furnishings 2005
- Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified 1871
- Tools and Hardware 1659
- Packages and Containers for Goods 1909
- Miscellaneous 95
- Plants 1415
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