U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

Patenting By Geographic Region (State and Country), Breakout By Technology Class
Count of 1997 - 2001 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')
 
Class Class Title 1997 1998 1999 2000 2001 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 10 6 10 8 20 54
439 Electrical Connectors 1 0 0 10 41 52
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 6 4 10 3 24
532 Organic Compounds (includes Classes 532-570) 6 1 3 4 6 20
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 4 0 2 4 4 14
435 Chemistry: Molecular Biology and Microbiology 0 6 0 2 4 12
252 Compositions 3 3 1 4 0 11
362 Illumination 1 1 2 1 5 10
062 Refrigeration 0 1 0 3 5 9
423 Chemistry of Inorganic Compounds 2 1 2 3 1 9
585 Chemistry of Hydrocarbon Compounds 1 5 0 2 1 9
606 Surgery (instruments) 0 1 4 1 2 8
128 Surgery (includes Class 600) 2 1 2 2 0 7
099 Foods and Beverages: Apparatus 0 1 1 0 4 6
280 Land Vehicles 0 0 2 0 4 6
428 Stock Material or Miscellaneous Articles 0 1 3 1 1 6
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 2 3 1 6
208 Mineral Oils: Processes and Products 1 0 2 1 1 5
210 Liquid Purification or Separation 0 1 2 1 1 5
219 Electric Heating 1 1 0 1 2 5
250 Radiant Energy 2 1 0 0 2 5
315 Electric Lamp and Discharge Devices: Systems 1 1 0 0 3 5
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 0 1 1 3 5
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 2 1 0 2 5
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 0 1 1 3 5
708 Arithmetic Processing and Calculating (Electrical Computers) 1 2 0 2 0 5
084 Music 0 1 2 0 1 4
135 Tent, Canopy, Umbrella, or Cane 0 0 0 0 4 4
209 Classifying, Separating, and Assorting Solids 2 0 0 1 1 4
241 Solid Material Comminution or Disintegration 0 0 1 2 1 4
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 0 1 1 1 4
706 DP: Artificial Intelligence (Data Processing) 1 1 0 0 2 4
052 Static Structures (e.g., Buildings) 0 0 1 1 1 3
070 Locks 0 0 0 2 1 3
072 Metal Deforming 0 0 1 0 2 3
074 Machine Element or Mechanism 1 0 1 0 1 3
123 Internal-Combustion Engines 0 0 1 2 0 3
261 Gas and Liquid Contact Apparatus 0 0 0 2 1 3
313 Electric Lamp and Discharge Devices 0 0 0 0 3 3
341 Coded Data Generation or Conversion 1 1 0 0 1 3
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 1 0 0 1 1 3
348 Television 0 2 1 0 0 3
361 Electricity: Electrical Systems and Devices 2 1 0 0 0 3
378 X-Ray or Gamma Ray Systems or Devices 0 2 0 0 1 3
382 Image Analysis 0 0 1 0 2 3
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 1 1 0 0 1 3
426 Food or Edible Material: Processes, Compositions, and Products 1 1 0 0 1 3
438 Semiconductor Device Manufacturing: Process 0 0 2 1 0 3
446 Amusement Devices: Toys 0 0 0 1 2 3
475 Planetary Gear Transmission Systems or Components 1 0 1 0 1 3
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 2 1 3
004 Baths, Closets, Sinks, and Spittoons 0 0 0 1 1 2
024 Buckles, Buttons, Clasps, Etc. 0 0 1 1 0 2
029 Metal Working 0 0 0 0 2 2
036 Boots, Shoes, and Leggings 0 0 2 0 0 2
073 Measuring and Testing 0 1 0 1 0 2
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 0 1 1 2
081 Tools 0 0 0 2 0 2
104 Railways 1 0 0 0 1 2
106 Compositions: Coating or Plastic 1 1 0 0 0 2
137 Fluid Handling 0 0 1 0 1 2
138 Pipes and Tubular Conduits 0 0 0 0 2 2
164 Metal Founding 0 0 1 1 0 2
165 Heat Exchange 1 0 0 0 1 2
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 1 0 1 2
175 Boring or Penetrating the Earth 0 0 0 1 1 2
180 Motor Vehicles 0 0 0 2 0 2
204 Chemistry: Electrical and Wave Energy 0 1 0 0 1 2
220 Receptacles 0 0 2 0 0 2
248 Supports (e.g., for holding articles, etc.) 0 1 0 1 0 2
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 1 0 0 1 2
269 Work Holders 1 0 0 0 1 2
277 Seal for a Joint or Juncture 0 0 0 2 0 2
293 Vehicle Fenders 0 0 0 1 1 2
310 Electrical Generator or Motor Structure 0 0 1 0 1 2
356 Optics: Measuring and Testing 0 0 1 0 1 2
359 Optics: Systems (Including Communication) and Elements 0 0 1 1 0 2
363 Electric Power Conversion Systems 0 0 1 1 0 2
366 Agitating (e.g., of articles and materials) 0 0 0 0 2 2
375 Pulse or Digital Communications 1 0 0 0 1 2
417 Pumps 0 0 0 1 1 2
420 Alloys or Metallic Compositions 0 0 1 0 1 2
427 Coating Processes 1 1 0 0 0 2
431 Combustion 0 0 0 2 0 2
473 Games Using Tangible Projectile 0 0 0 0 2 2
504 Plant Protecting and Regulating Compositions 0 0 0 0 2 2
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 1 0 0 1 2
607 Surgery: Light, Thermal, and Electrical Application 0 0 1 1 0 2
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 0 0 0 0 2 2
002 Apparel 0 0 0 0 1 1
007 Compound Hand Tools 0 0 0 0 1 1
014 Bridges 0 0 0 0 1 1
016 Miscellaneous Hardware 1 0 0 0 0 1
030 Cutlery 0 0 0 1 0 1
033 Geometrical Instruments 0 0 0 0 1 1
034 Drying and Gas or Vapor Contact with Solids 0 0 1 0 0 1
040 Card, Picture, or Sign Exhibiting 0 0 1 0 0 1
051 Abrasive Tool Making Process, Material, or Composition 0 0 1 0 0 1
060 Power Plants 0 0 1 0 0 1
071 Chemistry: Fertilizers 0 1 0 0 0 1
092 Expansible Chamber Devices 0 0 1 0 0 1
096 Gas Separation: Apparatus 0 1 0 0 0 1
114 Ships 0 0 1 0 0 1
116 Signals and Indicators 0 1 0 0 0 1
127 Sugar, Starch, and Carbohydrates 0 0 0 1 0 1
134 Cleaning and Liquid Contact with Solids 0 0 1 0 0 1
148 Metal Treatment 0 1 0 0 0 1
173 Tool Driving or Impacting 0 1 0 0 0 1
181 Acoustics 0 0 0 1 0 1
184 Lubrication 0 0 1 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 1 0 0 0 1
188 Brakes 0 0 0 0 1 1
190 Trunks and Hand-Carried Luggage 0 1 0 0 0 1
192 Clutches and Power-Stop Control 0 0 0 1 0 1
202 Distillation: Apparatus 0 0 0 0 1 1
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 0 0 0 0 1
216 Etching a Substrate: Processes 0 0 0 1 0 1
251 Valves and Valve Actuation 0 0 0 1 0 1
279 Chucks or Sockets 0 0 0 0 1 1
297 Chairs and Seats 0 0 0 1 0 1
307 Electrical Transmission or Interconnection Systems 0 1 0 0 0 1
318 Electricity: Motive Power Systems 0 0 1 0 0 1
320 Electricity: Battery or Capacitor Charging or Discharging 0 1 0 0 0 1
323 Electricity: Power Supply or Regulation Systems 0 0 0 0 1 1
324 Electricity: Measuring and Testing 0 0 0 1 0 1
331 Oscillators 0 0 0 0 1 1
336 Inductor Devices 0 0 0 1 0 1
340 Communications: Electrical 0 0 1 0 0 1
343 Communications: Radio Wave Antennas 0 0 1 0 0 1
347 Incremental Printing of Symbolic Information 0 0 0 1 0 1
349 Liquid Crystal Cells, Elements and Systems 0 1 0 0 0 1
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 0 1 0 1
365 Static Information Storage and Retrieval 0 0 1 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 1 0 1
372 Coherent Light Generators 0 0 1 0 0 1
379 Telephonic Communications 0 0 1 0 0 1
384 Bearings 0 0 0 0 1 1
386 Television Signal Processing for Dynamic Recording or Reproducing 1 0 0 0 0 1
396 Photography 0 0 0 1 0 1
401 Coating Implements with Material Supply 0 0 0 1 0 1
403 Joints and Connections 0 0 0 0 1 1
405 Hydraulic and Earth Engineering 0 0 0 0 1 1
418 Rotary Expansible Chamber Devices 0 0 0 0 1 1
419 Powder Metallurgy Processes 0 0 0 0 1 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 1 0 0 1
432 Heating 0 0 0 1 0 1
436 Chemistry: Analytical and Immunological Testing 0 0 0 0 1 1
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 1 0 0 0 1
451 Abrading 0 1 0 0 0 1
455 Telecommunications 0 0 0 1 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 0 1 1
474 Endless Belt Power Transmission Systems or Components 1 0 0 0 0 1
482 Exercise Devices 0 0 0 1 0 1
483 Tool Changing 0 0 1 0 0 1
512 Perfume Compositions 0 1 0 0 0 1
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 0 1 1
601 Surgery: Kinesitherapy 0 0 1 0 0 1
602 Surgery: Splint, Brace, or Bandage 1 0 0 0 0 1
604 Surgery (Medicators and Receptors) 1 0 0 0 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 1 0 1
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 1
713 Support (Electrical Computers and Digital Processing Systems) 1 0 0 0 0 1
ALL ALL CLASSES 62 72 90 119 195 538



TAF Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Information Products Division - TAF Branch
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of TAF reports from : ftp.uspto.gov/pub/taf/

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Last Modified: April 9, 2002