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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 1998 - 2002 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 1998 1999 2000 2001 2002 Total
439 Electrical Connectors 0 0 10 41 65 116
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 6 10 8 20 19 63
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 6 4 10 3 10 33
361 Electricity: Electrical Systems and Devices 1 0 0 0 20 21
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 0 2 4 4 9 19
435 Chemistry: Molecular Biology and Microbiology 6 0 2 4 6 18
532 Organic Compounds (includes Classes 532-570) 1 3 4 6 2 16
062 Refrigeration 1 0 3 5 5 14
585 Chemistry of Hydrocarbon Compounds 5 0 2 1 4 12
252 Compositions 3 1 4 0 2 10
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 1 1 3 5 10
280 Land Vehicles 0 2 0 4 3 9
362 Illumination 1 2 1 5 0 9
363 Electric Power Conversion Systems 0 1 1 0 7 9
428 Stock Material or Miscellaneous Articles 1 3 1 1 3 9
208 Mineral Oils: Processes and Products 0 2 1 1 4 8
423 Chemistry of Inorganic Compounds 1 2 3 1 1 8
606 Surgery (instruments) 1 4 1 2 0 8
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 2 3 1 2 8
315 Electric Lamp and Discharge Devices: Systems 1 0 0 3 3 7
099 Foods and Beverages: Apparatus 1 1 0 4 0 6
210 Liquid Purification or Separation 1 2 1 1 1 6
219 Electric Heating 1 0 1 2 2 6
708 Arithmetic Processing and Calculating (Electrical Computers) 2 0 2 0 2 6
029 Metal Working 0 0 0 2 3 5
070 Locks 0 0 2 1 2 5
123 Internal-Combustion Engines 0 1 2 0 2 5
128 Surgery (includes Class 600) 1 2 2 0 0 5
135 Tent, Canopy, Umbrella, or Cane 0 0 0 4 1 5
241 Solid Material Comminution or Disintegration 0 1 2 1 1 5
313 Electric Lamp and Discharge Devices 0 0 0 3 2 5
378 X-Ray or Gamma Ray Systems or Devices 2 0 0 1 2 5
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 2 1 0 2 0 5
426 Food or Edible Material: Processes, Compositions, and Products 1 0 0 1 3 5
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 1 1 3 0 5
030 Cutlery 0 0 1 0 3 4
052 Static Structures (e.g., Buildings) 0 1 1 1 1 4
081 Tools 0 0 2 0 2 4
084 Music 1 2 0 1 0 4
137 Fluid Handling 0 1 0 1 2 4
250 Radiant Energy 1 0 0 2 1 4
261 Gas and Liquid Contact Apparatus 0 0 2 1 1 4
312 Supports: Cabinet Structure 0 0 0 0 4 4
324 Electricity: Measuring and Testing 0 0 1 0 3 4
340 Communications: Electrical 0 1 0 0 3 4
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 0 0 1 1 2 4
348 Television 2 1 0 0 1 4
417 Pumps 0 0 1 1 2 4
438 Semiconductor Device Manufacturing: Process 0 2 1 0 1 4
446 Amusement Devices: Toys 0 0 1 2 1 4
706 DP: Artificial Intelligence (Data Processing) 1 0 0 2 1 4
036 Boots, Shoes, and Leggings 0 2 0 0 1 3
072 Metal Deforming 0 1 0 2 0 3
073 Measuring and Testing 1 0 1 0 1 3
074 Machine Element or Mechanism 0 1 0 1 1 3
165 Heat Exchange 0 0 0 1 2 3
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 1 0 1 1 3
173 Tool Driving or Impacting 1 0 0 0 2 3
188 Brakes 0 0 0 1 2 3
248 Supports (e.g., for holding articles, etc.) 1 0 1 0 1 3
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 1 1 1 0 3
277 Seal for a Joint or Juncture 0 0 2 0 1 3
293 Vehicle Fenders 0 0 1 1 1 3
341 Coded Data Generation or Conversion 1 0 0 1 1 3
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 1 0 2 3
359 Optics: Systems (Including Communication) and Elements 0 1 1 0 1 3
382 Image Analysis 0 1 0 2 0 3
418 Rotary Expansible Chamber Devices 0 0 0 1 2 3
431 Combustion 0 0 2 0 1 3
504 Plant Protecting and Regulating Compositions 0 0 0 2 1 3
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 0 0 1 1 3
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 2 1 3
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 2 1 0 3
004 Baths, Closets, Sinks, and Spittoons 0 0 1 1 0 2
024 Buckles, Buttons, Clasps, Etc. 0 1 1 0 0 2
033 Geometrical Instruments 0 0 0 1 1 2
071 Chemistry: Fertilizers 1 0 0 0 1 2
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 1 1 0 2
106 Compositions: Coating or Plastic 1 0 0 0 1 2
138 Pipes and Tubular Conduits 0 0 0 2 0 2
148 Metal Treatment 1 0 0 0 1 2
164 Metal Founding 0 1 1 0 0 2
175 Boring or Penetrating the Earth 0 0 1 1 0 2
180 Motor Vehicles 0 0 2 0 0 2
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 1 0 0 0 1 2
200 Electricity: Circuit Makers and Breakers 0 0 0 0 2 2
204 Chemistry: Electrical and Wave Energy 1 0 0 1 0 2
209 Classifying, Separating, and Assorting Solids 0 0 1 1 0 2
220 Receptacles 0 2 0 0 0 2
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1 0 0 1 0 2
269 Work Holders 0 0 0 1 1 2
310 Electrical Generator or Motor Structure 0 1 0 1 0 2
347 Incremental Printing of Symbolic Information 0 0 1 0 1 2
356 Optics: Measuring and Testing 0 1 0 1 0 2
366 Agitating (e.g., of articles and materials) 0 0 0 2 0 2
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 1 0 1 2
370 Multiplex Communications 0 0 0 0 2 2
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 0 2 2
420 Alloys or Metallic Compositions 0 1 0 1 0 2
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 1 0 0 1 0 2
427 Coating Processes 1 0 0 0 1 2
436 Chemistry: Analytical and Immunological Testing 0 0 0 1 1 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 0 0 0 1 2
473 Games Using Tangible Projectile 0 0 0 2 0 2
475 Planetary Gear Transmission Systems or Components 0 1 0 1 0 2
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 1 1 2
607 Surgery: Light, Thermal, and Electrical Application 0 1 1 0 0 2
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 1 0 1 2
002 Apparel 0 0 0 1 0 1
005 Beds 0 0 0 0 1 1
007 Compound Hand Tools 0 0 0 1 0 1
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 0 0 0 1 1
014 Bridges 0 0 0 1 0 1
028 Textiles: Manufacturing 0 0 0 0 1 1
034 Drying and Gas or Vapor Contact with Solids 0 1 0 0 0 1
040 Card, Picture, or Sign Exhibiting 0 1 0 0 0 1
044 Fuel and Related Compositions 0 0 0 0 1 1
051 Abrasive Tool Making Process, Material, or Composition 0 1 0 0 0 1
060 Power Plants 0 1 0 0 0 1
092 Expansible Chamber Devices 0 1 0 0 0 1
096 Gas Separation: Apparatus 1 0 0 0 0 1
104 Railways 0 0 0 1 0 1
114 Ships 0 1 0 0 0 1
116 Signals and Indicators 1 0 0 0 0 1
118 Coating Apparatus 0 0 0 0 1 1
124 Mechanical Guns and Projectors 0 0 0 0 1 1
127 Sugar, Starch, and Carbohydrates 0 0 1 0 0 1
134 Cleaning and Liquid Contact with Solids 0 1 0 0 0 1
162 Paper Making and Fiber Liberation 0 0 0 0 1 1
174 Electricity: Conductors and Insulators 0 0 0 0 1 1
181 Acoustics 0 0 1 0 0 1
184 Lubrication 0 1 0 0 0 1
190 Trunks and Hand-Carried Luggage 1 0 0 0 0 1
192 Clutches and Power-Stop Control 0 0 1 0 0 1
198 Conveyors: Power-Driven 0 0 0 0 1 1
202 Distillation: Apparatus 0 0 0 1 0 1
203 Distillation: Processes, Separatory 0 0 0 0 1 1
206 Special Receptacle or Package 0 0 0 0 1 1
216 Etching a Substrate: Processes 0 0 1 0 0 1
222 Dispensing (apparatus and process) 0 0 0 0 1 1
228 Metal Fusion Bonding 0 0 0 0 1 1
251 Valves and Valve Actuation 0 0 1 0 0 1
266 Metallurgical Apparatus 0 0 0 0 1 1
279 Chucks or Sockets 0 0 0 1 0 1
283 Printed Matter 0 0 0 0 1 1
285 Pipe Joints or Couplings 0 0 0 0 1 1
294 Handling: Hand and Hoist-Line Implements 0 0 0 0 1 1
297 Chairs and Seats 0 0 1 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 1 1
307 Electrical Transmission or Interconnection Systems 1 0 0 0 0 1
318 Electricity: Motive Power Systems 0 1 0 0 0 1
320 Electricity: Battery or Capacitor Charging or Discharging 1 0 0 0 0 1
323 Electricity: Power Supply or Regulation Systems 0 0 0 1 0 1
326 Electronic Digital Logic Circuitry 0 0 0 0 1 1
331 Oscillators 0 0 0 1 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 0 0 1 1
336 Inductor Devices 0 0 1 0 0 1
343 Communications: Radio Wave Antennas 0 1 0 0 0 1
349 Liquid Crystal Cells, Elements and Systems 1 0 0 0 0 1
365 Static Information Storage and Retrieval 0 1 0 0 0 1
369 Dynamic Information Storage or Retrieval 0 0 0 0 1 1
372 Coherent Light Generators 0 1 0 0 0 1
375 Pulse or Digital Communications 0 0 0 1 0 1
379 Telephonic Communications 0 1 0 0 0 1
384 Bearings 0 0 0 1 0 1
396 Photography 0 0 1 0 0 1
401 Coating Implements with Material Supply 0 0 1 0 0 1
403 Joints and Connections 0 0 0 1 0 1
405 Hydraulic and Earth Engineering 0 0 0 1 0 1
409 Gear Cutting, Milling, or Planing 0 0 0 0 1 1
415 Rotary Kinetic Fluid Motors or Pumps 0 0 0 0 1 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 0 0 1 1
419 Powder Metallurgy Processes 0 0 0 1 0 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 1 0 0 0 1
432 Heating 0 0 1 0 0 1
451 Abrading 1 0 0 0 0 1
455 Telecommunications 0 0 1 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 1 0 1
482 Exercise Devices 0 0 1 0 0 1
483 Tool Changing 0 1 0 0 0 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 0 1 1
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 0 0 0 0 1 1
512 Perfume Compositions 1 0 0 0 0 1
601 Surgery: Kinesitherapy 0 1 0 0 0 1
711 Memory (Electrical Computers and Digital Processing Systems) 0 1 0 0 0 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 0 0 1 1
ALL ALL CLASSES 72 90 119 195 289 765


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