Patent Counts By Class By Year, CY 1977 - 2015
U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)
Patent Counts By Class By Year
JANUARY 1977 -- DECEMBER 2015
PATENTS DISTRIBUTED BY CALENDAR YEAR OF GRANT
Parts of the Report
Part I counts patents only according to the "original" (i.e., primary) classification assigned to each patent.
If the patent record is incomplete and the "original" classification is unknown, then the (non-design) patent
is counted in class 001. Design patents with an unknown "original" classification are counted in design class
D00. See the Description of the Report section, below, for further details.
Part II counts patents according to the "original" and "cross-reference" classifications assigned to each patent.
Counts of duplicate patents are eliminated within each class, but not among classes. For example, the same patent
would be counted once in Class 2 and once in Class 4 if it has classifications assigned in both classes.
If the patent record is incomplete and the classification is unknown, then the (non-design) patent
is counted in class 001. Design patents with unknown classification are counted in design class
D00. See the Description of the Report section, below, for further details.
Patent Counts By Class By Year
Patents Granted: 1977 - 2015
A Patent Technology Monitoring Team Report
Description of the Report
Classes are major divisions of technology in the U.S. Patent Classification System (USPC). Each class is further
divided into smaller divisions of technology called subclasses. The USPC currently contains approximately 475 total
classes and 165,000 total subclasses. Copies of each patent are placed (classified) in those subclasses that have
been identified as pertinent to the information disclosed in the patent. One, and only one, of these subclasses is
designated as the "original classification" (OR), and the remainder (if any) are designated as "cross-reference
classifications" (XR).
The "original" classification of a patent may be considered to be its "primary" classification. This classification
need not correspond to any classification that was assigned to the patent at the time of issue since the classification
system is continuously undergoing revision and since classifications that are assigned to patents are continuously
updated to reflect these revisions. Counting patents by "original" classifications will ensure that each patent is
counted only once. However, if a patent teaches more than one concept, e.g., table and chair, only one concept,
e.g., table, will be counted. To ensure that all concepts are counted, patents should be counted in all of their
classifications. Patent classifications used to produce this report are those assigned to patents as of December 31,
2015 . Please refer to the U.S. Patent and Trademark Office Manual of Patent Classification for further
information regarding the patent classification system.
Please note that the U.S. Patent and Trademark Office has transitioned from the U.S. Patent Classification System
(USPC) to the Cooperative Patent Classification System (CPC) and that USPC classifications generally are no longer
available for U.S. utility patents that issued after early June, 2015. Therefore, in this report, USPC
classifications for utility patents issuing after early June 2015 have been determined as a best estimate based on
USPC classifications that were assigned to the associated patent applications during early
processing stages and based on other information, as available. As a result of the transition to CPC, utility patents
granted after early June 2015 have fewer USPC "cross-reference classifications" and often may have no "cross-reference
classifications" associated with them. An effect of this change can be seen in the substantially reduced total count of annual
"original" and "cross-reference classifications" for 2015 as compared to 2014 (table in Part II).
About 90% of all patent documents granted by USPTO (i.e., including
utility, design, plant, and reissue patents, statutory invention registrations, and defensive publications) are
utility patent grants.
This report counts all patent documents including utility, design, plant, and reissue patents as well as statutory
invention registrations and defensive publications.
Report Printing and the Use of Spreadsheet Software
This report can be printed from an Internet browser - for such printing,
optimal results are usually obtained by printing in landscape orientation with
minimal margins and a small text font.
Additionally, a user may import this report file into spreadsheet software
such as Microsoft Excel to facilitate printing. Such spreadsheet software also
may facilitate sorting and further manipulation of the data.
Patent Counts By Class By Year
Patents Granted: 1977 - 2015
Technology
Monitoring Team Report
Part I, Patent Counts By Class By Year
Patent Counts Based on ORIGINAL Classification Only
Number of Patents Granted as Distributed by Year of Patent Grant
Breakout by U.S. Patent Classification System Class
<table class="table" style=" text-align: " border="1px" cellspacing="0" cellpadding="7" rules="all" frame="Box"
summary= "This table presents the number of patent grants having ORIGINAL classificationin a U.S. Patent Classification System class.Annual counts and total counts of patent grants are presented for each class.The ORIGINAL classification is the PRIMARY classification in USPTO-specific terminology.">
PART I, Patent Counts By Class By Year, Breakout by U.S. Patent Classification System Class. Patent Counts Based on ORIGINAL Patent Classification Only are presented.Patents Granted: 01/01/1977 - 12/31/2015
Baths, Closets, Sinks, and Spittoons
Compound Tools
Bleaching and D Fluid Treatment and Chemical Modification of Textiles and Fibers
Boot and Shoe Making
Brushing, Scrubbing, and General Cleaning
Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.)
Fiber Preparation
Chemistry: Physical Processes
Buckles, Buttons, Clasps, Etc.
Textiles: Cloth Finishing
Undertaking
Manufacturing
Metal Working
Geometrical Instruments
Drying and Gas or Vapor Contact with Solids
Boots, Shoes, and Leggings
Excavating
Ironing or Smoothing
Card, Picture, or Sign Exhibiting
Fishing, Trapping, and Vermin Destroying
Fuel and Related Compositions
Plant Husbandry
Gas: Heating and Illuminating
Movable or Removable Closures
Abrasive Tool Making Process, Material, or Composition
Static Structures (e.g., Buildings)
Package Making
Harness for Working Animal
Gas Separation
Harvesters
Spinning, Twisting, and Twining
Chain, Staple, and Horseshoe Making
Power Plants
Refrigeration
Glass Manufacturing
Fluid Treating Apparatus
Leather Manufactures
Chemistry: Fertilizers
Metal Deforming
Measuring and Testing
Machine Element or Mechanism
Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures
Metal Tools and Implements, Making
Button Making
Ammunition and Explosive-Charge Making
Textiles: Braiding, Netting, and Lace Making
Motors: Expansible Chamber Type
Expansible Chamber Devices
Gas Separation:
Gas Separation:
Foods and Beverages: Apparatus
Ammunition and Explosives
Railway Rolling Stock
Compositions:
Coating or Plastic
Horizontally Supported Planar Surfaces
Safes, Bank Protection, or a Related Device
Signals and Indicators
Single-Crystal, Oriented-Crystal, and Epitaxy Growth P Non-Coating Apparatus Therefor
Coating Apparatus
Animal Husbandry
Liquid Heaters and Vaporizers
Internal-Combustion Engines
Mechanical Guns and Projectors
Stone Working
Stoves and Furnaces
Sugar, Starch, and Carbohydrates
Cleaning and Liquid Contact with Solids
Tent, Canopy, Umbrella, or Cane
Batteries:
Thermoelectric and Photoelectric
Fluid Handling
Pipes and Tubular Conduits
Wireworking
Fluent Material Handling, with Receiver or Receiver Coacting Means
Wood Turning
Woodworking
Metal Treatment
Explosive and Thermic Compositions or Charges
Purses, Wallets, and Protective Covers
Resilient Tires and Wheels
Adhesive Bonding and Miscellaneous Chemical Manufacture
Wheelwright Machines
Concentrating Evaporators
Flexible or Portable Closure, Partition, or Panel
Paper Making and Fiber Liberation
Needle and Pin Making
Metal Founding
Heat Exchange
Fire Extinguishers
Unearthing Plants or Buried Objects
Earth Working
Tool Driving or Impacting
Electricity:
Conductors and Insulators
Boring or Penetrating the Earth
Weighing Scales
Telegraphy
Motor Vehicles
Fire Escape, Ladder, or Scaffold
Lubrication
Spring, Weight, or Animal Powered
Merchandising
Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle
Trunks and Hand-Carried Luggage
Electricity:
Transmission To Vehicles
Clutches and Power-Stop Control
Conveyors, Chutes, Skids, Guides, and Ways
Check-Actuated Control Mechanisms
Mineral Oils: Apparatus
Conveyors:
Power-Driven
Type Casting
Electricity:
Circuit Makers and Breakers
Distillation: Processes, Thermolytic
Distillation: Apparatus
Distillation: Processes, Separatory
Chemistry:
Electrical and Wave Energy
Electrolysis:
Processes, Compositions Used Therein, and Methods of Preparing the Compositions
Special Receptacle or Package
Mineral Oils: Processes and Products
Classifying, Separating, and Assorting Solids
Liquid Purification or Separation
Traversing Hoists
Railway Draft Appliances
Bottles and Jars
Etching a Substrate:
Wooden Receptacles
High-Voltage Switches with Arc Preventing or Extinguishing Devices
Electric Heating
Receptacles
Article Dispensing
Dispensing
Apparel Apparatus
Package and Article Carriers
Severing by Tearing or Breaking
Advancing Material of Indeterminate Length
Elongated-Member-Driving Apparatus
Metal Fusion Bonding
Envelopes, Wrappers, and Paperboard Boxes
Whips and Whip Apparatus
Deposit and Collection Receptacles
Selective Cutting (e.g., Punching)
Automatic Temperature and Humidity Regulation
Heating Systems
Surface Track
Fluid Sprinkling, Spraying, and Diffusing
Solid Material Comminution or Disintegration
Winding, Tensioning, or Guiding
Aeronautics and Astronautics
Wire Fabrics and Structure
Railway Switches and Signals
Static Molds
Radiant Energy
Valves and Valve Actuation
Compositions
Implements or Apparatus for Applying Pushing or Pulling Force
Active Solid-State Devices (e.g., Transistors, Solid-State Diodes)
Railway Mail Delivery
Chemistry of Carbon Compounds
Gas and Liquid Contact Apparatus
Plastic and Nonmetallic Article Shaping or Treating: Processes
Metallurgical Apparatus
Spring Devices
Work Holders
Sheet-Material Associating
Sheet Feeding or Delivering
Amusement Devices:
Typesetting
Seal for a Joint or Juncture
Land Vehicles:
Animal Draft Appliances
Chucks or Sockets
Land Vehicles
Books, Strips, and Leaves
Printed Matter
Pipe Joints or Couplings
Knots and Knot Tying
Prime-Mover Dynamo Plants
Track Sanders
Closure Fasteners
Vehicle Fenders
Hand and Hoist-Line Implements
Railway Wheels and Axles
Land Vehicles:
Bodies and Tops
Chairs and Seats
Land Vehicles:
Mining or In Situ Disintegration of Hard Material
Brush, Broom, and Mop Making
Land Vehicles:
Wheels and Axles
Fluid-Pressure and Analogous Brake Systems
Wheel Substitutes for Land Vehicles
Electrical Transmission or Interconnection Systems
Electrical Generator or Motor Structure
Cabinet Structure
Electric Lamp and Discharge Devices
Electric Lamp and Discharge Devices: Consumable Electrodes
Electric Lamp and Discharge Devices:
Electricity:
Motive Power Systems
Electricity:
Battery or Capacitor Charging or Discharging
Electricity:
Single Generator Systems
Electricity:
Power Supply or Regulation Systems
Electricity:
Measuring and Testing
Electronic Digital Logic Circuitry
Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems
Demodulators
Amplifiers
Oscillators
Modulators
Wave Transmission Lines and Networks
Electricity:
Magnetically Operated Switches, Magnets, and Electromagnets
Inductor Devices
Electricity:
Electrothermally or Thermally Actuated Switches
Electrical Resistors
Communications:
Electrical
Coded Data Generation or Conversion
Communications:
Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation)
Communications:
Radio Wave Antennas
Computer Graphics Processing and Selective Visual Display Systems
Incremental Printing of Symbolic Information
Television
Liquid Crystal Cells, Elements and Systems
Eye Examining, Vision Testing and Correcting
Motion Pictures
Image Projectors
Photocopying
Measuring and Testing
Facsimile and Static Presentation Processing
Optical: Systems and Elements
Dynamic Magnetic Information Storage or Retrieval
Electricity:
Electrical Systems and Devices
Illumination
Electric Power Conversion Systems
Static Information Storage and Retrieval
Communications, Electrical: Acoustic Wave Systems and Devices
Horology: Time Measuring Systems or Devices
Dynamic Information Storage or Retrieval
Multiplex Communications
Coherent Light Generators
Industrial Electric Heating Furnaces
Thermal Measuring and Testing
Pulse or Digital Communications
Induced Nuclear Reactions:
Processes, Systems, and Elements
Electrical Pulse Counters, Pulse Dividers, or Shift Registers:
Circuits and Systems
X-Ray or Gamma Ray Systems or Devices
Telephonic Communications
Cryptography
Electrical Audio Signal Processing Systems and Devices
Image Analysis
Flexible Bags
Optical Waveguides
Motion Video Signal Processing for Recording or Reproducing
Electricity:
Motor Control Systems
Electric Resistance Heating Devices
Photography
Optical Communications
Electrophotography
Typewriting Machines
Coating Implements with Material Supply
Binder Device Releasably Engaging Aperture or Notch of Sheet
Joints and Connections
Road Structure, Process, or Apparatus
Hydraulic and Earth Engineering
Conveyors:
Fluid Current
Cutters, for Shaping
Cutting by Use of Rotating Axially Moving Tool
Gear Cutting, Milling, or Planing
Freight Accommodation On Freight Carrier
Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener
Bookbinding: Process and Apparatus
Sheet Metal Container Making
Material or Article Handling
Rotary Kinetic Fluid Motors or Pumps
Fluid Reaction Surfaces (i.e., Impellers)
Rotary Expansible Chamber Devices
Powder Metallurgy Processes
Alloys or Metallic Compositions
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing
Chemistry of Inorganic Compounds
Drug, Bio-Affecting and Body Treating Compositions
Plastic Article or Earthenware Shaping or Treating: Apparatus
Food or Edible Material:
Processes, Compositions, and Products
Coating Processes
Stock Material or Miscellaneous Articles
Chemistry:
Electrical Current Producing Apparatus, Product, and Process
Radiation Imagery Chemistry: Process, Composition, or Product Thereof
Combustion
Education and Demonstration
Chemistry: Molecular Biology and Microbiology
Chemistry: Analytical and Immunological Testing
Semiconductor Device Manufacturing: Process
Electrical Connectors
Marine Propulsion
Buoys, Rafts, and Aquatic Devices
Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.)
Electric Lamp or Space Discharge Component or Device Manufacturing
Amusement Devices:
Bee Culture
Foundation Garments
Butchering
Coin Handling
Ventilation
Telecommunications
Crop Threshing or Separating
Books, Strips, and Leaves for Manifolding
Amusement Devices: Games
Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts
Threaded, Headed Fastener, or Washer Making: Process and Apparatus
Amusement Devices
Games Using Tangible Projectile
Endless Belt Power Transmission Systems or Components
Planetary Gear Transmission Systems or Components
Friction Gear Transmission Systems or Components
Interrelated Power Delivery Controls, Including Engine Control
Exercise Devices
Tool Changing
Roll or Roller
Manufacturing Container or Tube From P or Other Manufacturing From a Sheet or Web
Imperforate Bowl:
Centrifugal Separators
Compositions: Ceramic
Catalyst, Solid Sorbent, or Support Therefor:
Product or Process of Making
Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor
Plant Protecting and Regulating Compositions
Superconductor Technology:
Apparatus, Material, Process
Combinatorial Chemistry Technology:
Method, Library, Apparatus
Earth Boring, Well Treating, and Oil Field Chemistry
Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions
Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions
Perfume Compositions
Drug, Bio-Affecting and Body Treating Compositions
Colloid Systems and Wetting A Subcombinations T Processes Of
Chemistry:
Fischer-Tropsch P or Purification or Recovery of Products Thereof
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Chemistry:
Natural Resins or D Peptides or P Lignins or Reaction Products Thereof
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Chemistry of Hydrocarbon Compounds
Hazardous or Toxic Waste Destruction or Containment
Surgery: Kinesitherapy
Surgery: Splint, Brace, or Bandage
Surgery: Light, Thermal, and Electrical Application
Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor
Data Processing:
Generic Control Systems or Specific Applications
Data Processing: Vehicles, Navigation, and Relative Location
Data Processing: Measuring, Calibrating, or Testing
Data Processing:
Structural Design, Modeling, Simulation, and Emulation
Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression
Data Processing: Financial, Business Practice, Management, or Cost/Price Determination
Data Processing: Artificial Intelligence
Data Processing:
Database and File Management or Data Structures
Electrical Computers:
Arithmetic Processing and Calculating
Electrical Computers and Digital Processing Systems:
Multicomputer Data Transferring
Electrical Computers and Digital Data Processing Systems:
Input/Output
Electrical Computers and Digital Processing Systems: Memory
Electrical Computers and Digital Processing Systems:
Processing Architectures and Instruction Processing (e.g., Processors)
Electrical Computers and Digital Processing Systems:
Error Detection/Correction and Fault Detection/Recovery
Data Processing:
Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing
Computer-Aided Design and Analysis of Circuits and Semiconductor Masks
Data Processing: Software Development, Installation, and Management
Electrical Computers and Digital Processing Systems: Virtual Machine Task or Process Management or Task Management/Control
Electrical Computers and Digital Processing Systems: Interprogram Communication or Interprocess Communication (Ipc)
Dynamic Optical Information Storage or Retrieval
Interactive Video Distribution Systems
Information Security
Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes
Scanning-Probe Techniques or A Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm]
Edible Products
Apparel and Haberdashery
Travel Goods and Personal Belongings
Textile or Paper Yard G Sheet Material
Furnishings
Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified
Tools and Hardware
Packages and Containers for Goods
Measuring, Testing, or Signalling Instruments
Jewelry, Symbolic Insignia, and Ornaments
Transportation
Equipment for Production, Distribution, or Transformation of Energy
Recording, Communication, or Information Retrieval Equipment
Machines Not Elsewhere Specified
Photography and Optical Equipment
Musical Instruments
Printing and Office Machinery
Artists&#39; and Teachers&#39; Materials
Sales and Advertising Equipment
Games, Toys, and Sports Goods
Arms, Pyrotechnics, Hunting and Fishing Equipment
Environmental Heating and C Fluid Handling and Sanitary Equipment
Medical and Laboratory Equipment
Building Units and Construction Elements
Tobacco and Smokers&#39; Supplies
Cosmetic Products and Toilet Articles
Equipment for Safety, Protection, and Rescue
Animal Husbandry
Washing, Cleaning, or Drying Machine
Material or Article Handling Equipment
Miscellaneous
ALL CLASSES
Patent Counts By Class By Year
Patents Granted: 1977 - 2015
Technology
Monitoring Team Report
Part II, Patent Counts By Class By Year
Patent Counts Based on ORIGINAL and CROSS-REFERENCE Classifications with Duplicate Patents Eliminated Within Classes
Number of Patents Granted as Distributed by Year of Patent Grant
Breakout by U.S. Patent Classification System Class
<table class="table" style=" text-align: " border="1px" cellspacing="0" cellpadding="7" rules="all" frame="Box"
summary= "This table presents the number of patent grants having either ORIGINAL or CROSS-REFERENCE classificationin a U.S. Patent Classification System class.Annual counts and total counts of patent grants are presented for each class.If a patent is classified more than once in a class, it
i.e., duplicate patent counts are eliminated within classes.">
PART II, Patent Counts By Class By Year, Breakout by U.S. Patent Classification System Class. Patent Counts Based on ORIGINAL and CROSS-REFERENCE Patent Classifications are presented.Duplicate patent counts are eliminated within each class.Patents Granted: 01/01/1977 - 12/31/2015
Baths, Closets, Sinks, and Spittoons
Compound Tools
Bleaching and D Fluid Treatment and Chemical Modification of Textiles and Fibers
Boot and Shoe Making
Brushing, Scrubbing, and General Cleaning
Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.)
Fiber Preparation
Chemistry: Physical Processes
Buckles, Buttons, Clasps, Etc.
Textiles: Cloth Finishing
Undertaking
Manufacturing
Metal Working
Geometrical Instruments
Drying and Gas or Vapor Contact with Solids
Boots, Shoes, and Leggings
Excavating
Ironing or Smoothing
Card, Picture, or Sign Exhibiting
Fishing, Trapping, and Vermin Destroying
Fuel and Related Compositions
Plant Husbandry
Gas: Heating and Illuminating
Movable or Removable Closures
Abrasive Tool Making Process, Material, or Composition
Static Structures (e.g., Buildings)
Package Making
Harness for Working Animal
Gas Separation
Harvesters
Spinning, Twisting, and Twining
Chain, Staple, and Horseshoe Making
Power Plants
Refrigeration
Glass Manufacturing
Fluid Treating Apparatus
Leather Manufactures
Chemistry: Fertilizers
Metal Deforming
Measuring and Testing
Machine Element or Mechanism
Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures
Metal Tools and Implements, Making
Button Making
Ammunition and Explosive-Charge Making
Textiles: Braiding, Netting, and Lace Making
Motors: Expansible Chamber Type
Expansible Chamber Devices
Gas Separation:
Gas Separation:
Foods and Beverages: Apparatus
Ammunition and Explosives
Railway Rolling Stock
Compositions:
Coating or Plastic
Horizontally Supported Planar Surfaces
Safes, Bank Protection, or a Related Device
Signals and Indicators
Single-Crystal, Oriented-Crystal, and Epitaxy Growth P Non-Coating Apparatus Therefor
Coating Apparatus
Animal Husbandry
Liquid Heaters and Vaporizers
Internal-Combustion Engines
Mechanical Guns and Projectors
Stone Working
Stoves and Furnaces
Sugar, Starch, and Carbohydrates
Cleaning and Liquid Contact with Solids
Tent, Canopy, Umbrella, or Cane
Batteries:
Thermoelectric and Photoelectric
Fluid Handling
Pipes and Tubular Conduits
Wireworking
Fluent Material Handling, with Receiver or Receiver Coacting Means
Wood Turning
Woodworking
Metal Treatment
Explosive and Thermic Compositions or Charges
Purses, Wallets, and Protective Covers
Resilient Tires and Wheels
Adhesive Bonding and Miscellaneous Chemical Manufacture
Wheelwright Machines
Concentrating Evaporators
Flexible or Portable Closure, Partition, or Panel
Paper Making and Fiber Liberation
Needle and Pin Making
Metal Founding
Heat Exchange
Fire Extinguishers
Unearthing Plants or Buried Objects
Earth Working
Tool Driving or Impacting
Electricity:
Conductors and Insulators
Boring or Penetrating the Earth
Weighing Scales
Telegraphy
Motor Vehicles
Fire Escape, Ladder, or Scaffold
Lubrication
Spring, Weight, or Animal Powered
Merchandising
Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle
Trunks and Hand-Carried Luggage
Electricity:
Transmission To Vehicles
Clutches and Power-Stop Control
Conveyors, Chutes, Skids, Guides, and Ways
Check-Actuated Control Mechanisms
Mineral Oils: Apparatus
Conveyors:
Power-Driven
Type Casting
Electricity:
Circuit Makers and Breakers
Distillation: Processes, Thermolytic
Distillation: Apparatus
Distillation: Processes, Separatory
Chemistry:
Electrical and Wave Energy
Electrolysis:
Processes, Compositions Used Therein, and Methods of Preparing the Compositions
Special Receptacle or Package
Mineral Oils: Processes and Products
Classifying, Separating, and Assorting Solids
Liquid Purification or Separation
Traversing Hoists
Railway Draft Appliances
Bottles and Jars
Etching a Substrate:
Wooden Receptacles
High-Voltage Switches with Arc Preventing or Extinguishing Devices
Electric Heating
Receptacles
Article Dispensing
Dispensing
Apparel Apparatus
Package and Article Carriers
Severing by Tearing or Breaking
Advancing Material of Indeterminate Length
Elongated-Member-Driving Apparatus
Metal Fusion Bonding
Envelopes, Wrappers, and Paperboard Boxes
Whips and Whip Apparatus
Deposit and Collection Receptacles
Selective Cutting (e.g., Punching)
Automatic Temperature and Humidity Regulation
Heating Systems
Surface Track
Fluid Sprinkling, Spraying, and Diffusing
Solid Material Comminution or Disintegration
Winding, Tensioning, or Guiding
Aeronautics and Astronautics
Wire Fabrics and Structure
Railway Switches and Signals
Static Molds
Radiant Energy
Valves and Valve Actuation
Compositions
Implements or Apparatus for Applying Pushing or Pulling Force
Active Solid-State Devices (e.g., Transistors, Solid-State Diodes)
Railway Mail Delivery
Chemistry of Carbon Compounds
Gas and Liquid Contact Apparatus
Plastic and Nonmetallic Article Shaping or Treating: Processes
Metallurgical Apparatus
Spring Devices
Work Holders
Sheet-Material Associating
Sheet Feeding or Delivering
Amusement Devices:
Typesetting
Seal for a Joint or Juncture
Land Vehicles:
Animal Draft Appliances
Chucks or Sockets
Land Vehicles
Books, Strips, and Leaves
Printed Matter
Pipe Joints or Couplings
Knots and Knot Tying
Prime-Mover Dynamo Plants
Track Sanders
Closure Fasteners
Vehicle Fenders
Hand and Hoist-Line Implements
Railway Wheels and Axles
Land Vehicles:
Bodies and Tops
Chairs and Seats
Land Vehicles:
Mining or In Situ Disintegration of Hard Material
Brush, Broom, and Mop Making
Land Vehicles:
Wheels and Axles
Fluid-Pressure and Analogous Brake Systems
Wheel Substitutes for Land Vehicles
Electrical Transmission or Interconnection Systems
Electrical Generator or Motor Structure
Cabinet Structure
Electric Lamp and Discharge Devices
Electric Lamp and Discharge Devices: Consumable Electrodes
Electric Lamp and Discharge Devices:
Electricity:
Motive Power Systems
Electricity:
Battery or Capacitor Charging or Discharging
Electricity:
Single Generator Systems
Electricity:
Power Supply or Regulation Systems
Electricity:
Measuring and Testing
Electronic Digital Logic Circuitry
Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems
Demodulators
Amplifiers
Oscillators
Modulators
Wave Transmission Lines and Networks
Electricity:
Magnetically Operated Switches, Magnets, and Electromagnets
Inductor Devices
Electricity:
Electrothermally or Thermally Actuated Switches
Electrical Resistors
Communications:
Electrical
Coded Data Generation or Conversion
Communications:
Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation)
Communications:
Radio Wave Antennas
Computer Graphics Processing and Selective Visual Display Systems
Incremental Printing of Symbolic Information
Television
Liquid Crystal Cells, Elements and Systems
Eye Examining, Vision Testing and Correcting
Motion Pictures
Image Projectors
Photocopying
Measuring and Testing
Facsimile and Static Presentation Processing
Optical: Systems and Elements
Dynamic Magnetic Information Storage or Retrieval
Electricity:
Electrical Systems and Devices
Illumination
Electric Power Conversion Systems
Static Information Storage and Retrieval
Communications, Electrical: Acoustic Wave Systems and Devices
Horology: Time Measuring Systems or Devices
Dynamic Information Storage or Retrieval
Multiplex Communications
Coherent Light Generators
Industrial Electric Heating Furnaces
Thermal Measuring and Testing
Pulse or Digital Communications
Induced Nuclear Reactions:
Processes, Systems, and Elements
Electrical Pulse Counters, Pulse Dividers, or Shift Registers:
Circuits and Systems
X-Ray or Gamma Ray Systems or Devices
Telephonic Communications
Cryptography
Electrical Audio Signal Processing Systems and Devices
Image Analysis
Flexible Bags
Optical Waveguides
Motion Video Signal Processing for Recording or Reproducing
Electricity:
Motor Control Systems
Electric Resistance Heating Devices
Photography
Optical Communications
Electrophotography
Typewriting Machines
Coating Implements with Material Supply
Binder Device Releasably Engaging Aperture or Notch of Sheet
Joints and Connections
Road Structure, Process, or Apparatus
Hydraulic and Earth Engineering
Conveyors:
Fluid Current
Cutters, for Shaping
Cutting by Use of Rotating Axially Moving Tool
Gear Cutting, Milling, or Planing
Freight Accommodation On Freight Carrier
Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener
Bookbinding: Process and Apparatus
Sheet Metal Container Making
Material or Article Handling
Rotary Kinetic Fluid Motors or Pumps
Fluid Reaction Surfaces (i.e., Impellers)
Rotary Expansible Chamber Devices
Powder Metallurgy Processes
Alloys or Metallic Compositions
Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing
Chemistry of Inorganic Compounds
Drug, Bio-Affecting and Body Treating Compositions
Plastic Article or Earthenware Shaping or Treating: Apparatus
Food or Edible Material:
Processes, Compositions, and Products
Coating Processes
Stock Material or Miscellaneous Articles
Chemistry:
Electrical Current Producing Apparatus, Product, and Process
Radiation Imagery Chemistry: Process, Composition, or Product Thereof
Combustion
Education and Demonstration
Chemistry: Molecular Biology and Microbiology
Chemistry: Analytical and Immunological Testing
Semiconductor Device Manufacturing: Process
Electrical Connectors
Marine Propulsion
Buoys, Rafts, and Aquatic Devices
Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.)
Electric Lamp or Space Discharge Component or Device Manufacturing
Amusement Devices:
Bee Culture
Foundation Garments
Butchering
Coin Handling
Ventilation
Telecommunications
Crop Threshing or Separating
Books, Strips, and Leaves for Manifolding
Amusement Devices: Games
Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts
Threaded, Headed Fastener, or Washer Making: Process and Apparatus
Amusement Devices
Games Using Tangible Projectile
Endless Belt Power Transmission Systems or Components
Planetary Gear Transmission Systems or Components
Friction Gear Transmission Systems or Components
Interrelated Power Delivery Controls, Including Engine Control
Exercise Devices
Tool Changing
Roll or Roller
Manufacturing Container or Tube From P or Other Manufacturing From a Sheet or Web
Imperforate Bowl:
Centrifugal Separators
Compositions: Ceramic
Catalyst, Solid Sorbent, or Support Therefor:
Product or Process of Making
Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor
Plant Protecting and Regulating Compositions
Superconductor Technology:
Apparatus, Material, Process
Combinatorial Chemistry Technology:
Method, Library, Apparatus
Earth Boring, Well Treating, and Oil Field Chemistry
Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions
Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions
Perfume Compositions
Drug, Bio-Affecting and Body Treating Compositions
Colloid Systems and Wetting A Subcombinations T Processes Of
Chemistry:
Fischer-Tropsch P or Purification or Recovery of Products Thereof
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Synthetic Resins or Natural Rubbers -- Part of the Class 520 Series
Chemistry:
Natural Resins or D Peptides or P Lignins or Reaction Products Thereof
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Organic Compounds -- Part of the Class 532-570 Series
Chemistry of Hydrocarbon Compounds
Hazardous or Toxic Waste Destruction or Containment
Surgery: Kinesitherapy
Surgery: Splint, Brace, or Bandage
Surgery: Light, Thermal, and Electrical Application
Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor
Data Processing:
Generic Control Systems or Specific Applications
Data Processing: Vehicles, Navigation, and Relative Location
Data Processing: Measuring, Calibrating, or Testing
Data Processing:
Structural Design, Modeling, Simulation, and Emulation
Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression
Data Processing: Financial, Business Practice, Management, or Cost/Price Determination
Data Processing: Artificial Intelligence
Data Processing:
Database and File Management or Data Structures
Electrical Computers:
Arithmetic Processing and Calculating
Electrical Computers and Digital Processing Systems:
Multicomputer Data Transferring
Electrical Computers and Digital Data Processing Systems:
Input/Output
Electrical Computers and Digital Processing Systems: Memory
Electrical Computers and Digital Processing Systems:
Processing Architectures and Instruction Processing (e.g., Processors)
Electrical Computers and Digital Processing Systems:
Error Detection/Correction and Fault Detection/Recovery
Data Processing:
Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing
Computer-Aided Design and Analysis of Circuits and Semiconductor Masks
Data Processing: Software Development, Installation, and Management
Electrical Computers and Digital Processing Systems: Virtual Machine Task or Process Management or Task Management/Control
Electrical Computers and Digital Processing Systems: Interprogram Communication or Interprocess Communication (Ipc)
Dynamic Optical Information Storage or Retrieval
Interactive Video Distribution Systems
Information Security
Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes
Scanning-Probe Techniques or A Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm]
Electronic Funds Transfer
Hybrid Electric Vehicles (Hevs)
Peptide or Protein Sequence
Nuclear Technology
Nanotechnology
Musical Instruments
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
Edible Products
Apparel and Haberdashery
Travel Goods and Personal Belongings
Textile or Paper Yard G Sheet Material
Furnishings
Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified
Tools and Hardware
Packages and Containers for Goods
Measuring, Testing, or Signalling Instruments
Jewelry, Symbolic Insignia, and Ornaments
Transportation
Equipment for Production, Distribution, or Transformation of Energy
Recording, Communication, or Information Retrieval Equipment
Machines Not Elsewhere Specified
Photography and Optical Equipment
Musical Instruments
Printing and Office Machinery
Artists&#39; and Teachers&#39; Materials
Sales and Advertising Equipment
Games, Toys, and Sports Goods
Arms, Pyrotechnics, Hunting and Fishing Equipment
Environmental Heating and C Fluid Handling and Sanitary Equipment
Medical and Laboratory Equipment
Building Units and Construction Elements
Tobacco and Smokers&#39; Supplies
Cosmetic Products and Toilet Articles
Equipment for Safety, Protection, and Rescue
Animal Husbandry
Washing, Cleaning, or Drying Machine
Material or Article Handling Equipment
Miscellaneous
Information Storage Based On Relative Movement Between Record Carrier and Transducer
ALL CLASSES ( in this total, a patent is counted once for each class in which it has been classified )
Contact Information
Questions regarding these reports should be directed to:
U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O. Box 1450
Alexandria, VA
tel: (571) 272-5600
fax: (571) 273-0110
address of PTMT pages at the USPTO Internet Web Site :
selected PTMT materials available for download at :