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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2001 - 2005 Utility Patent Grants,
By Calendar Year of Grant

- Explanation of Data -

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period
Originating From

CHINA P.REP.

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 2001 2002 2003 2004 2005 Total
439 Electrical Connectors 41 65 52 57 54 269
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 20 19 24 23 20 106
361 Electricity: Electrical Systems and Devices 0 20 7 17 8 52
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 3 10 9 10 4 36
435 Chemistry: Molecular Biology and Microbiology 4 6 5 8 5 28
532 Organic Compounds (includes Classes 532-570) 6 2 5 10 5 28
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 4 9 7 5 2 27
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1 0 5 7 10 23
375 Pulse or Digital Communications 1 0 1 10 9 21
382 Image Analysis 2 0 7 7 5 21
062 Refrigeration 5 5 2 3 5 20
219 Electric Heating 2 2 3 7 5 19
362 Illumination 5 0 4 3 6 18
385 Optical Waveguides 0 0 2 8 8 18
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 3 5 3 5 1 17
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 2 2 5 6 16
315 Electric Lamp and Discharge Devices: Systems 3 3 1 5 3 15
345 Computer Graphics Processing and Selective Visual Display Systems 1 2 3 4 5 15
438 Semiconductor Device Manufacturing: Process 0 1 2 3 9 15
363 Electric Power Conversion Systems 0 7 1 4 2 14
208 Mineral Oils: Processes and Products 1 4 2 4 2 13
280 Land Vehicles 4 3 2 2 2 13
423 Chemistry of Inorganic Compounds 1 1 4 6 1 13
431 Combustion 0 1 3 6 3 13
585 Chemistry of Hydrocarbon Compounds 1 4 2 3 3 13
165 Heat Exchange 1 2 3 4 2 12
359 Optics: Systems and Elements 0 1 2 5 4 12
707 DP: Database and File Management or Data Structures (Data Processing) 2 1 0 3 6 12
029 Metal Working 2 3 4 2 0 11
099 Foods and Beverages: Apparatus 4 0 1 4 2 11
206 Special Receptacle or Package 0 1 2 2 6 11
370 Multiplex Communications 0 2 0 3 6 11
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 2 6 3 11
137 Fluid Handling 1 2 3 2 2 10
313 Electric Lamp and Discharge Devices 3 2 1 0 3 9
324 Electricity: Measuring and Testing 0 3 2 2 2 9
030 Cutlery 0 3 2 1 2 8
200 Electricity: Circuit Makers and Breakers 0 2 1 2 3 8
310 Electrical Generator or Motor Structure 1 0 2 4 1 8
360 Dynamic Magnetic Information Storage or Retrieval 0 0 1 3 4 8
381 Electrical Audio Signal Processing Systems and Devices 0 2 2 2 2 8
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 3 0 1 2 2 8
455 Telecommunications 0 0 0 2 6 8
475 Planetary Gear Transmission Systems or Components 1 0 1 1 5 8
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 1 0 2 4 8
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 2 3 3 8
052 Static Structures (e.g., Buildings) 1 1 0 3 2 7
070 Locks 1 2 2 2 0 7
074 Machine Element or Mechanism 1 1 1 0 4 7
174 Electricity: Conductors and Insulators 0 1 1 2 3 7
248 Supports (e.g., for holding articles, etc.) 0 1 2 3 1 7
252 Compositions 0 2 0 2 3 7
312 Supports: Cabinet Structure 0 4 1 0 2 7
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 1 1 0 5 7
340 Communications: Electrical 0 3 3 0 1 7
351 Optics: Eye Examining, Vision Testing and Correcting 0 2 3 2 0 7
378 X-Ray or Gamma Ray Systems or Devices 1 2 1 0 3 7
428 Stock Material or Miscellaneous Articles 1 3 2 0 1 7
451 Abrading 0 0 1 0 6 7
108 Horizontally Supported Planar Surfaces 0 0 1 2 3 6
135 Tent, Canopy, Umbrella, or Cane 4 1 0 0 1 6
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 1 2 2 0 6
250 Radiant Energy 2 1 1 2 0 6
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 0 2 1 2 6
341 Coded Data Generation or Conversion 1 1 1 1 2 6
372 Coherent Light Generators 0 0 2 4 0 6
446 Amusement Devices: Toys 2 1 2 1 0 6
706 DP: Artificial Intelligence (Data Processing) 2 1 1 1 1 6
004 Baths, Closets, Sinks, and Spittoons 1 0 1 3 0 5
073 Measuring and Testing 0 1 2 1 1 5
081 Tools 0 2 0 0 3 5
128 Surgery (includes Class 600) 0 0 0 3 2 5
148 Metal Treatment 0 1 1 2 1 5
222 Dispensing (apparatus and process) 0 1 1 0 3 5
251 Valves and Valve Actuation 0 0 2 2 1 5
279 Chucks or Sockets 1 0 1 0 3 5
297 Chairs and Seats 0 0 1 2 2 5
330 Amplifiers 0 0 1 1 3 5
356 Optics: Measuring and Testing 1 0 0 3 1 5
369 Dynamic Information Storage or Retrieval 0 1 1 2 1 5
416 Fluid Reaction Surfaces (i.e., Impellers) 0 1 1 1 2 5
504 Plant Protecting and Regulating Compositions 2 1 0 1 1 5
606 Surgery (instruments) 2 0 2 0 1 5
005 Beds 0 1 0 2 1 4
007 Compound Hand Tools 1 0 1 1 1 4
033 Geometrical Instruments 1 1 0 1 1 4
060 Power Plants 0 0 1 3 0 4
072 Metal Deforming 2 0 1 0 1 4
188 Brakes 1 2 1 0 0 4
210 Liquid Purification or Separation 1 1 0 0 2 4
228 Metal Fusion Bonding 0 1 0 0 3 4
285 Pipe Joints or Couplings 0 1 2 0 1 4
318 Electricity: Motive Power Systems 0 0 2 2 0 4
323 Electricity: Power Supply or Regulation Systems 1 0 2 1 0 4
408 Cutting by Use of Rotating Axially Moving Tool 0 0 2 1 1 4
417 Pumps 1 2 0 0 1 4
418 Rotary Expansible Chamber Devices 1 2 0 1 0 4
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 1 0 0 3 0 4
426 Food or Edible Material: Processes, Compositions, and Products 1 3 0 0 0 4
436 Chemistry: Analytical and Immunological Testing 1 1 0 0 2 4
463 Amusement Devices: Games 0 0 2 1 1 4
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 1 0 2 0 1 4
040 Card, Picture, or Sign Exhibiting 0 0 1 1 1 3
053 Package Making 0 0 0 2 1 3
084 Music 1 0 0 1 1 3
119 Animal Husbandry 0 0 0 2 1 3
123 Internal-Combustion Engines 0 2 0 0 1 3
131 Tobacco 0 0 0 2 1 3
173 Tool Driving or Impacting 0 2 0 0 1 3
209 Classifying, Separating, and Assorting Solids 1 0 0 0 2 3
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 1 1 1 3
269 Work Holders 1 1 0 1 0 3
320 Electricity: Battery or Capacitor Charging or Discharging 0 0 1 1 1 3
331 Oscillators 1 0 1 0 1 3
336 Inductor Devices 0 0 1 2 0 3
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 0 2 1 0 3
343 Communications: Radio Wave Antennas 0 0 0 1 2 3
347 Incremental Printing of Symbolic Information 0 1 0 0 2 3
348 Television 0 1 0 2 0 3
366 Agitating (e.g., of articles and materials) 2 0 1 0 0 3
379 Telephonic Communications 0 0 0 2 1 3
392 Electric Resistance Heating Devices 0 0 1 1 1 3
405 Hydraulic and Earth Engineering 1 0 0 1 1 3
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 0 1 1 0 1 3
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 1 1 0 1 0 3
708 Arithmetic Processing and Calculating (Electrical Computers) 0 2 0 1 0 3
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 2 1 3
015 Brushing, Scrubbing, and General Cleaning 0 0 0 1 1 2
036 Boots, Shoes, and Leggings 0 1 0 0 1 2
044 Fuel and Related Compositions 0 1 0 1 0 2
055 Gas Separation 0 0 1 1 0 2
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 0 0 1 0 2
083 Cutting 0 0 2 0 0 2
095 Gas Separation: Processes 0 0 2 0 0 2
102 Ammunition and Explosives 0 0 0 2 0 2
124 Mechanical Guns and Projectors 0 1 1 0 0 2
126 Stoves and Furnaces 0 0 1 0 1 2
138 Pipes and Tubular Conduits 2 0 0 0 0 2
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 1 0 1 2
160 Flexible or Portable Closure, Partition, or Panel 0 0 1 0 1 2
162 Paper Making and Fiber Liberation 0 1 1 0 0 2
175 Boring or Penetrating the Earth 1 0 1 0 0 2
181 Acoustics 0 0 1 0 1 2
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 1 0 1 0 2
194 Check-Actuated Control Mechanisms 0 0 2 0 0 2
203 Distillation: Processes, Separatory 0 1 0 1 0 2
204 Chemistry: Electrical and Wave Energy 1 0 0 1 0 2
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 0 0 2 2
220 Receptacles 0 0 0 0 2 2
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 0 1 1 0 2
241 Solid Material Comminution or Disintegration 1 1 0 0 0 2
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 0 2 0 2
261 Gas and Liquid Contact Apparatus 1 1 0 0 0 2
273 Amusement Devices: Games 0 0 0 2 0 2
277 Seal for a Joint or Juncture 0 1 0 1 0 2
283 Printed Matter 0 1 1 0 0 2
293 Vehicle Fenders 1 1 0 0 0 2
296 Land Vehicles: Bodies and Tops 0 0 0 1 1 2
303 Fluid-Pressure and Analogous Brake Systems 0 1 1 0 0 2
307 Electrical Transmission or Interconnection Systems 0 0 1 1 0 2
326 Electronic Digital Logic Circuitry 0 1 0 1 0 2
349 Liquid Crystal Cells, Elements and Systems 0 0 0 1 1 2
352 Optics: Motion Pictures 0 0 2 0 0 2
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 0 0 1 2
374 Thermal Measuring and Testing 0 0 0 0 2 2
384 Bearings 1 0 0 0 1 2
401 Coating Implements with Material Supply 0 0 1 0 1 2
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 2 0 0 0 0 2
409 Gear Cutting, Milling, or Planing 0 1 1 0 0 2
410 Freight Accommodation On Freight Carrier 0 0 0 0 2 2
419 Powder Metallurgy Processes 1 0 0 1 0 2
427 Coating Processes 0 1 1 0 0 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 1 0 1 0 2
450 Foundation Garments 0 0 0 1 1 2
473 Games Using Tangible Projectile 2 0 0 0 0 2
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 1 0 0 1 2
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 0 0 2 2
714 Error Detection/Correction and Fault Detection/Recovery 0 0 1 0 1 2
717 DP: Software Development, Installation, and Management (Data Processing) 0 1 0 1 0 2
002 Apparel 1 0 0 0 0 1
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 1 0 0 0 1
014 Bridges 1 0 0 0 0 1
016 Miscellaneous Hardware 0 0 1 0 0 1
024 Buckles, Buttons, Clasps, Etc. 0 0 0 1 0 1
028 Textiles: Manufacturing 0 1 0 0 0 1
034 Drying and Gas or Vapor Contact with Solids 0 0 1 0 0 1
047 Plant Husbandry 0 0 0 1 0 1
049 Movable or Removable Closures 0 0 0 0 1 1
066 Textiles: Knitting 0 0 0 1 0 1
068 Textiles: Fluid Treating Apparatus 0 0 1 0 0 1
071 Chemistry: Fertilizers 0 1 0 0 0 1
096 Gas Separation: Apparatus 0 0 0 1 0 1
101 Printing 0 0 0 0 1 1
104 Railways 1 0 0 0 0 1
106 Compositions: Coating or Plastic 0 1 0 0 0 1
118 Coating Apparatus 0 1 0 0 0 1
122 Liquid Heaters and Vaporizers 0 0 1 0 0 1
132 Toilet 0 0 0 0 1 1
134 Cleaning and Liquid Contact with Solids 0 0 1 0 0 1
136 Batteries: Thermoelectric and Photoelectric 0 0 1 0 0 1
144 Woodworking 0 0 1 0 0 1
164 Metal Founding 0 0 0 1 0 1
182 Fire Escape, Ladder, or Scaffold 0 0 0 0 1 1
191 Electricity: Transmission To Vehicles 0 0 0 0 1 1
198 Conveyors: Power-Driven 0 1 0 0 0 1
202 Distillation: Apparatus 1 0 0 0 0 1
211 Supports: Racks 0 0 0 0 1 1
215 Bottles and Jars 0 0 1 0 0 1
227 Elongated-Member-Driving Apparatus 0 0 0 0 1 1
266 Metallurgical Apparatus 0 1 0 0 0 1
271 Sheet Feeding or Delivering 0 0 0 0 1 1
292 Closure Fasteners 0 0 1 0 0 1
294 Handling: Hand and Hoist-Line Implements 0 1 0 0 0 1
333 Wave Transmission Lines and Networks 0 0 0 1 0 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 1 0 0 1
353 Optics: Image Projectors 0 0 0 0 1 1
355 Photocopying 0 0 0 1 0 1
365 Static Information Storage and Retrieval 0 0 0 1 0 1
380 Cryptography 0 0 0 0 1 1
396 Photography 0 0 0 0 1 1
398 Optical Communications 0 0 0 0 1 1
399 Electrophotography 0 0 0 0 1 1
400 Typewriting Machines 0 0 0 0 1 1
403 Joints and Connections 1 0 0 0 0 1
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 0 0 1 1
414 Material or Article Handling 0 0 1 0 0 1
415 Rotary Kinetic Fluid Motors or Pumps 0 1 0 0 0 1
420 Alloys or Metallic Compositions 1 0 0 0 0 1
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 0 1 0 1
441 Buoys, Rafts, and Aquatic Devices 0 0 0 0 1 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 0 1 1
454 Ventilation 0 0 0 1 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 0 0 1
474 Endless Belt Power Transmission Systems or Components 0 0 0 0 1 1
501 Compositions: Ceramic 0 0 0 1 0 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 1 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 1 0 0 0 1
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 0 1 0 1
512 Perfume Compositions 0 0 0 0 1 1
601 Surgery: Kinesitherapy 0 0 0 0 1 1
604 Surgery (Medicators and Receptors) 0 0 1 0 0 1
607 Surgery: Light, Thermal, and Electrical Application 0 0 0 1 0 1
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 1 1
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 0 0 0 0 1 1
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 1 0 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 1 0 0 1
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 0 1 1
726 Information Security 0 1 0 0 0 1
ALL ALL CLASSES 195 289 297 404 402 1587


PTMB Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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