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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

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

Count of 2000 - 2004 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 2000 2001 2002 2003 2004 Total
439 Electrical Connectors 10 41 65 52 57 225
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 8 20 19 24 23 94
361 Electricity: Electrical Systems and Devices 0 0 20 7 17 44
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 10 3 10 9 10 42
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 4 4 9 7 5 29
532 Organic Compounds (includes Classes 532-570) 4 6 2 5 10 27
435 Chemistry: Molecular Biology and Microbiology 2 4 6 5 8 25
062 Refrigeration 3 5 5 2 3 18
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 3 5 3 5 17
382 Image Analysis 0 2 0 7 7 16
219 Electric Heating 1 2 2 3 7 15
423 Chemistry of Inorganic Compounds 3 1 1 4 6 15
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 1 0 5 7 13
362 Illumination 1 5 0 4 3 13
363 Electric Power Conversion Systems 1 0 7 1 4 13
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 3 1 2 2 5 13
208 Mineral Oils: Processes and Products 1 1 4 2 4 12
315 Electric Lamp and Discharge Devices: Systems 0 3 3 1 5 12
375 Pulse or Digital Communications 0 1 0 1 10 12
431 Combustion 2 0 1 3 6 12
585 Chemistry of Hydrocarbon Compounds 2 1 4 2 3 12
029 Metal Working 0 2 3 4 2 11
280 Land Vehicles 0 4 3 2 2 11
345 Computer Graphics Processing and Selective Visual Display Systems 1 1 2 3 4 11
165 Heat Exchange 0 1 2 3 4 10
385 Optical Waveguides 0 0 0 2 8 10
070 Locks 2 1 2 2 2 9
099 Foods and Beverages: Apparatus 0 4 0 1 4 9
359 Optics: Systems and Elements 1 0 1 2 5 9
137 Fluid Handling 0 1 2 3 2 8
252 Compositions 4 0 2 0 2 8
324 Electricity: Measuring and Testing 1 0 3 2 2 8
351 Optics: Eye Examining, Vision Testing and Correcting 1 0 2 3 2 8
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 2 6 8
030 Cutlery 1 0 3 2 1 7
248 Supports (e.g., for holding articles, etc.) 1 0 1 2 3 7
310 Electrical Generator or Motor Structure 0 1 0 2 4 7
428 Stock Material or Miscellaneous Articles 1 1 3 2 0 7
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 3 0 1 2 7
438 Semiconductor Device Manufacturing: Process 1 0 1 2 3 7
446 Amusement Devices: Toys 1 2 1 2 1 7
004 Baths, Closets, Sinks, and Spittoons 1 1 0 1 3 6
052 Static Structures (e.g., Buildings) 1 1 1 0 3 6
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 1 1 2 2 6
250 Radiant Energy 0 2 1 1 2 6
313 Electric Lamp and Discharge Devices 0 3 2 1 0 6
340 Communications: Electrical 0 0 3 3 0 6
372 Coherent Light Generators 0 0 0 2 4 6
381 Electrical Audio Signal Processing Systems and Devices 0 0 2 2 2 6
707 DP: Database and File Management or Data Structures (Data Processing) 0 2 1 0 3 6
073 Measuring and Testing 1 0 1 2 1 5
128 Surgery (includes Class 600) 2 0 0 0 3 5
135 Tent, Canopy, Umbrella, or Cane 0 4 1 0 0 5
200 Electricity: Circuit Makers and Breakers 0 0 2 1 2 5
206 Special Receptacle or Package 0 0 1 2 2 5
251 Valves and Valve Actuation 1 0 0 2 2 5
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 1 0 2 1 5
312 Supports: Cabinet Structure 0 0 4 1 0 5
370 Multiplex Communications 0 0 2 0 3 5
606 Surgery (instruments) 1 2 0 2 0 5
706 DP: Artificial Intelligence (Data Processing) 0 2 1 1 1 5
708 Arithmetic Processing and Calculating (Electrical Computers) 2 0 2 0 1 5
709 Multicomputer Data Transferring or Plural Processor Synchronization (Electrical Computers and Digital Processing Systems) 0 0 0 2 3 5
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 1 0 2 0 5
060 Power Plants 0 0 0 1 3 4
081 Tools 2 0 2 0 0 4
123 Internal-Combustion Engines 2 0 2 0 0 4
148 Metal Treatment 0 0 1 1 2 4
174 Electricity: Conductors and Insulators 0 0 1 1 2 4
188 Brakes 0 1 2 1 0 4
241 Solid Material Comminution or Disintegration 2 1 1 0 0 4
261 Gas and Liquid Contact Apparatus 2 1 1 0 0 4
277 Seal for a Joint or Juncture 2 0 1 0 1 4
297 Chairs and Seats 1 0 0 1 2 4
318 Electricity: Motive Power Systems 0 0 0 2 2 4
323 Electricity: Power Supply or Regulation Systems 0 1 0 2 1 4
336 Inductor Devices 1 0 0 1 2 4
341 Coded Data Generation or Conversion 0 1 1 1 1 4
356 Optics: Measuring and Testing 0 1 0 0 3 4
360 Dynamic Magnetic Information Storage or Retrieval 0 0 0 1 3 4
369 Dynamic Information Storage or Retrieval 0 0 1 1 2 4
378 X-Ray or Gamma Ray Systems or Devices 0 1 2 1 0 4
417 Pumps 1 1 2 0 0 4
418 Rotary Expansible Chamber Devices 0 1 2 0 1 4
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 1 0 0 3 4
426 Food or Edible Material: Processes, Compositions, and Products 0 1 3 0 0 4
504 Plant Protecting and Regulating Compositions 0 2 1 0 1 4
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 1 1 0 2 4
005 Beds 0 0 1 0 2 3
007 Compound Hand Tools 0 1 0 1 1 3
033 Geometrical Instruments 0 1 1 0 1 3
072 Metal Deforming 0 2 0 1 0 3
074 Machine Element or Mechanism 0 1 1 1 0 3
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 1 0 0 1 3
108 Horizontally Supported Planar Surfaces 0 0 0 1 2 3
175 Boring or Penetrating the Earth 1 1 0 1 0 3
210 Liquid Purification or Separation 1 1 1 0 0 3
269 Work Holders 0 1 1 0 1 3
285 Pipe Joints or Couplings 0 0 1 2 0 3
293 Vehicle Fenders 1 1 1 0 0 3
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 0 0 2 1 3
348 Television 0 0 1 0 2 3
366 Agitating (e.g., of articles and materials) 0 2 0 1 0 3
408 Cutting by Use of Rotating Axially Moving Tool 0 0 0 2 1 3
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 1 1 1 3
455 Telecommunications 1 0 0 0 2 3
463 Amusement Devices: Games 0 0 0 2 1 3
475 Planetary Gear Transmission Systems or Components 0 1 0 1 1 3
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 1 1 0 1 3
024 Buckles, Buttons, Clasps, Etc. 1 0 0 0 1 2
040 Card, Picture, or Sign Exhibiting 0 0 0 1 1 2
044 Fuel and Related Compositions 0 0 1 0 1 2
053 Package Making 0 0 0 0 2 2
055 Gas Separation 0 0 0 1 1 2
083 Cutting 0 0 0 2 0 2
084 Music 0 1 0 0 1 2
095 Gas Separation: Processes 0 0 0 2 0 2
102 Ammunition and Explosives 0 0 0 0 2 2
119 Animal Husbandry 0 0 0 0 2 2
124 Mechanical Guns and Projectors 0 0 1 1 0 2
131 Tobacco 0 0 0 0 2 2
138 Pipes and Tubular Conduits 0 2 0 0 0 2
162 Paper Making and Fiber Liberation 0 0 1 1 0 2
164 Metal Founding 1 0 0 0 1 2
173 Tool Driving or Impacting 0 0 2 0 0 2
180 Motor Vehicles 2 0 0 0 0 2
181 Acoustics 1 0 0 1 0 2
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 1 0 1 2
194 Check-Actuated Control Mechanisms 0 0 0 2 0 2
203 Distillation: Processes, Separatory 0 0 1 0 1 2
204 Chemistry: Electrical and Wave Energy 0 1 0 0 1 2
209 Classifying, Separating, and Assorting Solids 1 1 0 0 0 2
222 Dispensing (apparatus and process) 0 0 1 1 0 2
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 0 0 1 1 2
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 0 1 1 2
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 0 0 2 2
273 Amusement Devices: Games 0 0 0 0 2 2
279 Chucks or Sockets 0 1 0 1 0 2
283 Printed Matter 0 0 1 1 0 2
303 Fluid-Pressure and Analogous Brake Systems 0 0 1 1 0 2
307 Electrical Transmission or Interconnection Systems 0 0 0 1 1 2
320 Electricity: Battery or Capacitor Charging or Discharging 0 0 0 1 1 2
326 Electronic Digital Logic Circuitry 0 0 1 0 1 2
330 Amplifiers 0 0 0 1 1 2
331 Oscillators 0 1 0 1 0 2
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 1 1 0 2
347 Incremental Printing of Symbolic Information 1 0 1 0 0 2
352 Optics: Motion Pictures 0 0 0 2 0 2
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 0 1 0 0 2
379 Telephonic Communications 0 0 0 0 2 2
392 Electric Resistance Heating Devices 0 0 0 1 1 2
401 Coating Implements with Material Supply 1 0 0 1 0 2
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 2 0 0 0 2
405 Hydraulic and Earth Engineering 0 1 0 0 1 2
409 Gear Cutting, Milling, or Planing 0 0 1 1 0 2
419 Powder Metallurgy Processes 0 1 0 0 1 2
427 Coating Processes 0 0 1 1 0 2
436 Chemistry: Analytical and Immunological Testing 0 1 1 0 0 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 0 1 0 1 2
473 Games Using Tangible Projectile 0 2 0 0 0 2
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 0 0 1 1 0 2
607 Surgery: Light, Thermal, and Electrical Application 1 0 0 0 1 2
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 0 1 0 0 2
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 0 2 2
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 1 0 1 2
002 Apparel 0 1 0 0 0 1
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 0 1 0 0 1
014 Bridges 0 1 0 0 0 1
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 1 1
016 Miscellaneous Hardware 0 0 0 1 0 1
028 Textiles: Manufacturing 0 0 1 0 0 1
034 Drying and Gas or Vapor Contact with Solids 0 0 0 1 0 1
036 Boots, Shoes, and Leggings 0 0 1 0 0 1
047 Plant Husbandry 0 0 0 0 1 1
066 Textiles: Knitting 0 0 0 0 1 1
068 Textiles: Fluid Treating Apparatus 0 0 0 1 0 1
071 Chemistry: Fertilizers 0 0 1 0 0 1
096 Gas Separation: Apparatus 0 0 0 0 1 1
104 Railways 0 1 0 0 0 1
106 Compositions: Coating or Plastic 0 0 1 0 0 1
118 Coating Apparatus 0 0 1 0 0 1
122 Liquid Heaters and Vaporizers 0 0 0 1 0 1
126 Stoves and Furnaces 0 0 0 1 0 1
127 Sugar, Starch, and Carbohydrates 1 0 0 0 0 1
134 Cleaning and Liquid Contact with Solids 0 0 0 1 0 1
136 Batteries: Thermoelectric and Photoelectric 0 0 0 1 0 1
144 Woodworking 0 0 0 1 0 1
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 1 0 1
160 Flexible or Portable Closure, Partition, or Panel 0 0 0 1 0 1
192 Clutches and Power-Stop Control 1 0 0 0 0 1
198 Conveyors: Power-Driven 0 0 1 0 0 1
202 Distillation: Apparatus 0 1 0 0 0 1
215 Bottles and Jars 0 0 0 1 0 1
216 Etching a Substrate: Processes 1 0 0 0 0 1
228 Metal Fusion Bonding 0 0 1 0 0 1
266 Metallurgical Apparatus 0 0 1 0 0 1
292 Closure Fasteners 0 0 0 1 0 1
294 Handling: Hand and Hoist-Line Implements 0 0 1 0 0 1
296 Land Vehicles: Bodies and Tops 0 0 0 0 1 1
333 Wave Transmission Lines and Networks 0 0 0 0 1 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 0 1 0 1
343 Communications: Radio Wave Antennas 0 0 0 0 1 1
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 1 1
355 Photocopying 0 0 0 0 1 1
365 Static Information Storage and Retrieval 0 0 0 0 1 1
384 Bearings 0 1 0 0 0 1
396 Photography 1 0 0 0 0 1
403 Joints and Connections 0 1 0 0 0 1
414 Material or Article Handling 0 0 0 1 0 1
415 Rotary Kinetic Fluid Motors or Pumps 0 0 1 0 0 1
420 Alloys or Metallic Compositions 0 1 0 0 0 1
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 0 0 1 1
432 Heating 1 0 0 0 0 1
450 Foundation Garments 0 0 0 0 1 1
451 Abrading 0 0 0 1 0 1
454 Ventilation 0 0 0 0 1 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 0 0 1
482 Exercise Devices 1 0 0 0 0 1
501 Compositions: Ceramic 0 0 0 0 1 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 1 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 0 1 1
604 Surgery (Medicators and Receptors) 0 0 0 1 0 1
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 1
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 1 0 1
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 0 1 0 1
ALL ALL CLASSES 119 195 289 297 404 1304


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U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
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Alexandria VA 22313-1450

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

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