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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

SOUTH KOREA

( 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
438 Semiconductor Device Manufacturing: Process 241 292 349 454 483 1819
365 Static Information Storage and Retrieval 185 207 240 216 194 1042
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 145 181 140 147 206 819
348 Television 100 104 82 83 67 436
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 55 79 91 101 70 396
369 Dynamic Information Storage or Retrieval 85 73 63 75 96 392
349 Liquid Crystal Cells, Elements and Systems 62 62 73 84 110 391
375 Pulse or Digital Communications 80 77 76 88 68 389
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 57 66 68 96 100 387
062 Refrigeration 88 92 64 31 54 329
370 Multiplex Communications 36 46 53 63 104 302
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 70 58 51 58 63 300
359 Optics: Systems (Including Communication) and Elements 70 54 71 48 43 286
360 Dynamic Magnetic Information Storage or Retrieval 92 68 55 46 23 284
313 Electric Lamp and Discharge Devices 49 42 42 60 86 279
455 Telecommunications 18 45 58 76 78 275
219 Electric Heating 49 65 52 34 54 254
532 Organic Compounds (includes Classes 532-570) 29 35 52 48 64 228
399 Electrophotography 35 72 41 50 29 227
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 31 29 55 46 58 219
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 31 39 44 47 53 214
361 Electricity: Electrical Systems and Devices 48 43 36 52 31 210
382 Image Analysis 39 61 39 32 22 193
714 Error Detection/Correction and Fault Detection/Recovery 32 41 37 34 36 180
379 Telephonic Communications 46 64 28 11 22 171
315 Electric Lamp and Discharge Devices: Systems 29 32 18 39 38 156
386 Television Signal Processing for Dynamic Recording or Reproducing 41 35 26 24 28 154
347 Incremental Printing of Symbolic Information 16 21 36 30 46 149
385 Optical Waveguides 19 11 31 42 36 139
713 Support (Electrical Computers and Digital Processing Systems) 19 38 37 25 11 130
428 Stock Material or Miscellaneous Articles 10 19 28 27 44 128
341 Coded Data Generation or Conversion 31 26 27 20 22 126
358 Facsimile and Static Presentation Processing 26 31 28 22 15 122
710 Input/Output (Electrical Computers and Digital Processing Systems) 25 31 28 23 12 119
068 Textiles: Fluid Treating Apparatus 40 43 14 8 12 117
435 Chemistry: Molecular Biology and Microbiology 15 29 14 32 26 116
340 Communications: Electrical 23 36 29 16 9 113
073 Measuring and Testing 33 23 15 22 19 112
318 Electricity: Motive Power Systems 30 31 16 19 14 110
310 Electrical Generator or Motor Structure 26 27 12 17 24 106
324 Electricity: Measuring and Testing 18 10 20 22 35 105
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 13 14 10 25 35 97
250 Radiant Energy 16 19 13 20 24 92
427 Coating Processes 18 20 24 11 18 91
363 Electric Power Conversion Systems 20 33 10 16 11 90
029 Metal Working 17 11 11 16 32 87
118 Coating Apparatus 16 16 22 16 16 86
417 Pumps 20 15 11 12 25 83
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 16 14 20 20 12 82
326 Electronic Digital Logic Circuitry 13 8 16 26 16 79
700 DP: Generic Control Systems or Specific Applications (Data Processing) 8 12 14 28 17 79
475 Planetary Gear Transmission Systems or Components 16 29 7 12 14 78
708 Arithmetic Processing and Calculating (Electrical Computers) 18 23 8 14 8 71
210 Liquid Purification or Separation 22 15 5 14 12 68
242 Winding, Tensioning, or Guiding 25 15 7 7 13 67
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 9 14 14 16 14 67
296 Land Vehicles: Bodies and Tops 5 1 8 19 33 66
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 18 10 16 7 11 62
711 Memory (Electrical Computers and Digital Processing Systems) 8 12 15 15 11 61
015 Brushing, Scrubbing, and General Cleaning 15 22 8 6 8 59
074 Machine Element or Mechanism 12 9 8 11 18 58
356 Optics: Measuring and Testing 22 6 13 3 14 58
165 Heat Exchange 15 21 9 3 9 57
280 Land Vehicles 10 7 17 8 15 57
343 Communications: Radio Wave Antennas 9 7 13 21 7 57
128 Surgery (includes Class 600) 7 6 14 9 20 56
477 Interrelated Power Delivery Controls, Including Engine Control 15 22 3 5 11 56
123 Internal-Combustion Engines 15 10 8 10 11 54
252 Compositions 9 16 5 12 12 54
320 Electricity: Battery or Capacitor Charging or Discharging 9 15 11 7 12 54
134 Cleaning and Liquid Contact with Solids 12 16 8 8 7 51
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 13 11 3 15 9 51
445 Electric Lamp or Space Discharge Component or Device Manufacturing 11 9 14 13 4 51
271 Sheet Feeding or Delivering 3 14 18 12 3 50
501 Compositions: Ceramic 9 11 10 8 12 50
381 Electrical Audio Signal Processing Systems and Devices 15 10 8 5 11 49
216 Etching a Substrate: Processes 14 9 9 5 11 48
439 Electrical Connectors 3 12 13 11 8 47
204 Chemistry: Electrical and Wave Energy 9 4 14 10 9 46
002 Apparel 4 7 15 9 10 45
137 Fluid Handling 15 11 6 6 6 44
396 Photography 13 12 7 5 7 44
333 Wave Transmission Lines and Networks 6 6 10 7 14 43
330 Amplifiers 5 8 14 7 8 42
248 Supports (e.g., for holding articles, etc.) 9 5 10 6 11 41
372 Coherent Light Generators 12 8 7 5 9 41
400 Typewriting Machines 12 11 10 4 4 41
331 Oscillators 10 6 9 6 9 40
174 Electricity: Conductors and Insulators 4 6 8 12 9 39
454 Ventilation 17 7 6 4 5 39
423 Chemistry of Inorganic Compounds 8 9 5 9 7 38
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 6 5 8 10 7 36
702 DP: Measuring, Calibrating, or Testing (Data Processing) 4 8 10 5 9 36
312 Supports: Cabinet Structure 14 10 3 3 5 35
323 Electricity: Power Supply or Regulation Systems 10 8 6 8 3 35
414 Material or Article Handling 9 10 6 6 4 35
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 7 8 6 7 7 35
099 Foods and Beverages: Apparatus 7 5 6 6 10 34
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 2 13 7 10 2 34
148 Metal Treatment 7 9 5 7 4 32
180 Motor Vehicles 11 8 3 4 6 32
426 Food or Edible Material: Processes, Compositions, and Products 7 4 6 9 6 32
725 Interactive Video Distribution Systems 6 4 11 8 3 32
016 Miscellaneous Hardware 3 6 9 7 6 31
707 DP: Database and File Management or Data Structures (Data Processing) 1 6 5 7 12 31
384 Bearings 4 16 6 0 4 30
451 Abrading 3 6 3 11 7 30
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 7 11 6 3 2 29
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 3 7 4 6 9 29
222 Dispensing (apparatus and process) 5 11 2 3 8 29
353 Optics: Image Projectors 9 5 1 2 12 29
206 Special Receptacle or Package 5 4 6 8 5 28
228 Metal Fusion Bonding 2 6 12 6 1 27
362 Illumination 4 5 5 5 8 27
052 Static Structures (e.g., Buildings) 1 3 4 6 11 25
307 Electrical Transmission or Interconnection Systems 8 6 5 2 4 25
473 Games Using Tangible Projectile 7 9 1 5 3 25
132 Toilet 1 2 7 6 8 24
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 6 3 9 4 2 24
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 3 5 1 7 7 23
418 Rotary Expansible Chamber Devices 5 0 7 5 6 23
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 2 4 3 7 6 22
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 4 5 1 7 5 22
070 Locks 4 4 5 4 4 21
380 Cryptography 9 5 4 2 1 21
431 Combustion 4 4 3 4 6 21
034 Drying and Gas or Vapor Contact with Solids 2 3 7 2 6 20
060 Power Plants 5 5 1 7 2 20
065 Glass Manufacturing 0 7 3 2 8 20
072 Metal Deforming 4 3 3 2 8 20
200 Electricity: Circuit Makers and Breakers 3 7 2 4 4 20
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 3 5 0 3 9 20
220 Receptacles 5 2 1 6 6 20
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 5 4 5 4 2 20
188 Brakes 3 2 1 7 6 19
297 Chairs and Seats 5 5 0 6 3 19
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 4 5 5 1 4 19
285 Pipe Joints or Couplings 2 2 3 2 9 18
392 Electric Resistance Heating Devices 4 2 3 5 4 18
434 Education and Demonstration 5 4 3 4 2 18
606 Surgery (instruments) 7 3 2 3 3 18
036 Boots, Shoes, and Leggings 2 4 3 2 6 17
055 Gas Separation 1 3 4 3 6 17
192 Clutches and Power-Stop Control 4 3 1 2 7 17
415 Rotary Kinetic Fluid Motors or Pumps 2 4 2 3 6 17
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 3 2 5 5 17
084 Music 3 4 2 3 4 16
198 Conveyors: Power-Driven 4 6 3 2 1 16
294 Handling: Hand and Hoist-Line Implements 3 1 7 2 3 16
378 X-Ray or Gamma Ray Systems or Devices 2 3 0 3 8 16
604 Surgery (Medicators and Receptors) 0 5 1 2 8 16
095 Gas Separation: Processes 2 5 3 1 4 15
236 Automatic Temperature and Humidity Regulation 7 5 1 1 1 15
251 Valves and Valve Actuation 2 3 5 2 3 15
303 Fluid-Pressure and Analogous Brake Systems 4 2 2 4 3 15
355 Photocopying 5 3 3 2 2 15
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 5 3 2 1 4 15
420 Alloys or Metallic Compositions 4 5 3 2 1 15
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 4 0 5 5 15
024 Buckles, Buttons, Clasps, Etc. 4 4 0 4 2 14
221 Article Dispensing 0 3 4 4 3 14
351 Optics: Eye Examining, Vision Testing and Correcting 0 2 3 3 6 14
376 Induced Nuclear Reactions: Processes, Systems, and Elements 4 2 2 3 3 14
419 Powder Metallurgy Processes 2 6 3 1 2 14
706 DP: Artificial Intelligence (Data Processing) 10 0 1 1 2 14
135 Tent, Canopy, Umbrella, or Cane 4 2 2 2 3 13
184 Lubrication 1 3 2 4 3 13
211 Supports: Racks 7 2 0 4 0 13
239 Fluid Sprinkling, Spraying, and Diffusing 1 2 3 3 4 13
336 Inductor Devices 5 3 2 1 2 13
338 Electrical Resistors 2 2 6 2 1 13
433 Dentistry 1 2 2 5 3 13
004 Baths, Closets, Sinks, and Spittoons 1 2 1 3 5 12
033 Geometrical Instruments 0 1 4 4 3 12
049 Movable or Removable Closures 4 0 5 0 3 12
053 Package Making 0 1 2 7 2 12
096 Gas Separation: Apparatus 2 3 3 1 3 12
106 Compositions: Coating or Plastic 0 5 2 2 3 12
181 Acoustics 3 1 2 3 3 12
224 Package and Article Carriers 3 4 3 2 0 12
401 Coating Implements with Material Supply 0 1 3 2 6 12
432 Heating 3 3 2 2 2 12
101 Printing 2 5 1 2 1 11
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 2 1 2 3 11
474 Endless Belt Power Transmission Systems or Components 4 2 2 1 2 11
266 Metallurgical Apparatus 0 1 3 4 2 10
292 Closure Fasteners 1 4 1 1 3 10
374 Thermal Measuring and Testing 3 3 2 1 1 10
416 Fluid Reaction Surfaces (i.e., Impellers) 0 1 0 6 3 10
436 Chemistry: Analytical and Immunological Testing 1 2 3 2 2 10
607 Surgery: Light, Thermal, and Electrical Application 0 0 3 5 2 10
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 2 2 3 1 10
083 Cutting 2 1 2 3 1 9
092 Expansible Chamber Devices 1 3 0 3 2 9
119 Animal Husbandry 1 1 4 0 3 9
126 Stoves and Furnaces 2 0 2 2 3 9
162 Paper Making and Fiber Liberation 3 0 2 3 1 9
446 Amusement Devices: Toys 3 0 1 3 2 9
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 2 1 3 1 2 9
717 DP: Software Development, Installation, and Management (Data Processing) 0 3 1 4 1 9
030 Cutlery 0 1 0 5 2 8
057 Textiles: Spinning, Twisting, and Twining 0 0 1 4 3 8
110 Furnaces 3 1 0 3 1 8
267 Spring Devices 1 0 3 2 2 8
332 Modulators 3 1 1 1 2 8
403 Joints and Connections 3 2 1 2 0 8
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 1 1 3 2 8
091 Motors: Expansible Chamber Type 6 1 0 0 0 7
122 Liquid Heaters and Vaporizers 2 3 0 0 2 7
173 Tool Driving or Impacting 1 0 3 2 1 7
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 5 1 0 1 7
226 Advancing Material of Indeterminate Length 6 0 0 1 0 7
241 Solid Material Comminution or Disintegration 2 1 0 2 2 7
368 Horology: Time Measuring Systems or Devices 1 0 0 3 3 7
504 Plant Protecting and Regulating Compositions 3 0 0 2 2 7
715 DP: Presentation Processing of Document (Data Processing) 2 1 1 3 0 7
040 Card, Picture, or Sign Exhibiting 0 1 0 2 3 6
066 Textiles: Knitting 1 0 2 1 2 6
089 Ordnance 2 2 0 1 1 6
150 Purses, Wallets, and Protective Covers 0 0 3 3 0 6
223 Apparel Apparatus 0 1 3 2 0 6
261 Gas and Liquid Contact Apparatus 2 2 0 0 2 6
269 Work Holders 2 3 1 0 0 6
273 Amusement Devices: Games 0 3 0 2 1 6
409 Gear Cutting, Milling, or Planing 1 2 1 1 1 6
463 Amusement Devices: Games 0 1 1 1 3 6
482 Exercise Devices 0 0 1 3 2 6
585 Chemistry of Hydrocarbon Compounds 0 2 2 1 1 6
601 Surgery: Kinesitherapy 0 2 1 1 2 6
044 Fuel and Related Compositions 0 2 2 0 1 5
047 Plant Husbandry 0 1 0 0 4 5
102 Ammunition and Explosives 1 0 0 1 3 5
138 Pipes and Tubular Conduits 0 0 1 2 2 5
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 2 0 2 1 0 5
164 Metal Founding 1 0 1 3 0 5
215 Bottles and Jars 2 0 1 1 1 5
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 2 0 2 1 5
404 Road Structure, Process, or Apparatus 1 2 2 0 0 5
405 Hydraulic and Earth Engineering 0 0 1 2 2 5
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 3 1 1 5
037 Excavating 3 1 0 0 0 4
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 4 4
108 Horizontally Supported Planar Surfaces 1 0 1 2 0 4
112 Sewing 0 0 0 3 1 4
136 Batteries: Thermoelectric and Photoelectric 0 2 0 0 2 4
169 Fire Extinguishers 1 0 2 0 1 4
194 Check-Actuated Control Mechanisms 0 4 0 0 0 4
209 Classifying, Separating, and Assorting Solids 0 0 1 2 1 4
227 Elongated-Member-Driving Apparatus 2 0 1 1 0 4
244 Aeronautics 3 0 1 0 0 4
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 3 1 0 0 4
505 Superconductor Technology: Apparatus, Material, Process 1 1 2 0 0 4
005 Beds 0 0 2 0 1 3
014 Bridges 0 1 0 0 2 3
081 Tools 0 0 1 2 0 3
125 Stone Working 0 0 1 0 2 3
144 Woodworking 0 2 1 0 0 3
178 Telegraphy 0 1 1 0 1 3
229 Envelopes, Wrappers, and Paperboard Boxes 0 0 2 1 0 3
293 Vehicle Fenders 1 0 2 0 0 3
366 Agitating (e.g., of articles and materials) 1 0 0 2 0 3
407 Cutters, for Shaping 0 1 0 1 1 3
408 Cutting by Use of Rotating Axially Moving Tool 0 2 0 1 0 3
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 1 1 3
483 Tool Changing 2 0 0 1 0 3
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 0 0 1 1 3
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 1 0 1 1 3
602 Surgery: Splint, Brace, or Bandage 2 0 0 1 0 3
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 1 1 1 0 3
071 Chemistry: Fertilizers 0 0 1 1 0 2
104 Railways 1 0 0 1 0 2
124 Mechanical Guns and Projectors 0 0 0 2 0 2
131 Tobacco 0 1 1 0 0 2
140 Wireworking 0 1 1 0 0 2
172 Earth Working 2 0 0 0 0 2
177 Weighing Scales 1 0 1 0 0 2
182 Fire Escape, Ladder, or Scaffold 0 1 0 0 1 2
191 Electricity: Transmission To Vehicles 0 0 0 2 0 2
208 Mineral Oils: Processes and Products 0 1 0 1 0 2
238 Railways: Surface Track 0 0 1 0 1 2
270 Sheet-Material Associating 0 1 0 1 0 2
277 Seal for a Joint or Juncture 0 0 1 0 1 2
281 Books, Strips, and Leaves 1 0 1 0 0 2
290 Prime-Mover Dynamo Plants 1 0 0 1 0 2
299 Mining or In Situ Disintegration of Hard Material 0 0 0 0 2 2
301 Land Vehicles: Wheels and Axles 1 1 0 0 0 2
329 Demodulators 1 0 1 0 0 2
413 Sheet Metal Container Making 0 0 0 0 2 2
450 Foundation Garments 0 0 1 1 0 2
001 ** Classification Undetermined ** 0 0 0 1 0 1
007 Compound Hand Tools 0 0 0 0 1 1
019 Textiles: Fiber Preparation 0 0 0 0 1 1
038 Textiles: Ironing or Smoothing 0 0 0 0 1 1
042 Firearms 0 1 0 0 0 1
063 Jewelry 1 0 0 0 0 1
082 Turning (e.g., for metal working) 0 1 0 0 0 1
116 Signals and Indicators 0 0 0 0 1 1
139 Textiles: Weaving 0 1 0 0 0 1
152 Resilient Tires and Wheels 0 0 0 1 0 1
185 Motors: Spring, Weight, or Animal Powered 0 0 0 0 1 1
196 Mineral Oils: Apparatus 0 1 0 0 0 1
203 Distillation: Processes, Separatory 0 1 0 0 0 1
213 Railway Draft Appliances 0 0 0 1 0 1
225 Severing by Tearing or Breaking 0 0 0 1 0 1
237 Heating Systems 0 1 0 0 0 1
246 Railway Switches and Signals 0 0 0 0 1 1
256 Fences 0 0 0 1 0 1
283 Printed Matter 0 0 0 0 1 1
305 Wheel Substitutes for Land Vehicles 0 0 0 0 1 1
337 Electricity: Electrothermally or Thermally Actuated Switches 1 0 0 0 0 1
346 Recorders 0 0 0 1 0 1
383 Flexible Bags 0 0 0 0 1 1
388 Electricity: Motor Control Systems 0 0 0 0 1 1
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 1 0 0 1
440 Marine Propulsion 0 0 1 0 0 1
449 Bee Culture (propagating, raising, caring for bees) 0 0 0 0 1 1
453 Coin Handling 0 0 0 1 0 1
494 Imperforate Bowl: Centrifugal Separators 0 0 0 0 1 1
588 Hazardous or Toxic Waste Destruction or Containment 0 0 1 0 0 1
ALL ALL CLASSES 3259 3562 3314 3538 3786 17459


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