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 1996 - 2000 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

CALIFORNIA

(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 1996 1997 1998 1999 2000 Total
435 Chemistry: Molecular Biology and Microbiology 315 530 781 808 699 3133
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 334 541 706 694 661 2936
128 Surgery (includes Class 600) 257 265 424 417 454 1817
438 Semiconductor Device Manufacturing: Process 154 225 287 466 665 1797
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 251 247 400 384 421 1703
606 Surgery (instruments) 183 225 323 415 453 1599
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 207 212 313 362 352 1446
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 132 144 342 391 319 1328
365 Static Information Storage and Retrieval 189 187 276 315 352 1319
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 93 85 285 296 345 1104
604 Surgery (Medicators and Receptors) 208 163 260 254 210 1095
532 Organic Compounds (includes Classes 532-570) 152 182 256 237 233 1060
710 Input/Output (Electrical Computers and Digital Processing Systems) 141 171 257 240 235 1044
360 Dynamic Magnetic Information Storage or Retrieval 141 160 245 221 248 1015
370 Multiplex Communications 143 124 162 232 329 990
711 Memory (Electrical Computers and Digital Processing Systems) 112 138 200 218 225 893
359 Optics: Systems (Including Communication) and Elements 130 124 190 222 223 889
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 135 105 180 199 228 847
714 Error Detection/Correction and Fault Detection/Recovery 113 130 198 193 192 826
361 Electricity: Electrical Systems and Devices 129 122 191 181 163 786
375 Pulse or Digital Communications 111 119 166 186 201 783
250 Radiant Energy 153 137 176 139 153 758
428 Stock Material or Miscellaneous Articles 117 123 172 158 156 726
326 Electronic Digital Logic Circuitry 121 111 110 144 197 683
382 Image Analysis 56 105 186 164 159 670
324 Electricity: Measuring and Testing 152 124 107 105 142 630
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 70 86 162 181 126 625
073 Measuring and Testing 108 112 142 137 120 619
340 Communications: Electrical 105 100 127 136 147 615
713 Support (Electrical Computers and Digital Processing Systems) 66 89 139 157 159 610
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 62 118 162 118 120 580
455 Telecommunications 69 59 120 158 173 579
356 Optics: Measuring and Testing 82 100 133 120 141 576
439 Electrical Connectors 78 92 101 119 184 574
348 Television 85 65 116 124 146 536
379 Telephonic Communications 94 70 106 145 104 519
473 Games Using Tangible Projectile 87 96 141 108 85 517
029 Metal Working 78 100 113 104 121 516
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 92 80 102 100 108 482
204 Chemistry: Electrical and Wave Energy 70 64 74 117 130 455
372 Coherent Light Generators 55 73 115 108 101 452
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 74 90 108 90 83 445
385 Optical Waveguides 58 78 106 94 100 436
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 57 73 93 111 101 435
717 DP: Software Development, Installation, and Management (Data Processing) 34 36 99 139 121 429
052 Static Structures (e.g., Buildings) 67 75 100 87 96 425
210 Liquid Purification or Separation 62 72 77 94 118 423
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 73 77 93 84 93 420
280 Land Vehicles 83 45 85 91 113 417
427 Coating Processes 49 57 97 107 96 406
206 Special Receptacle or Package 69 68 89 97 80 403
248 Supports (e.g., for holding articles, etc.) 58 63 93 96 88 398
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 50 61 78 100 104 393
607 Surgery: Light, Thermal, and Electrical Application 68 58 86 69 94 375
362 Illumination 64 71 86 69 84 374
244 Aeronautics 44 50 86 86 103 369
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 43 55 88 72 109 367
347 Incremental Printing of Symbolic Information 52 79 72 82 79 364
137 Fluid Handling 49 57 84 80 88 358
358 Facsimile and Static Presentation Processing 63 68 77 71 75 354
002 Apparel 43 54 78 82 85 342
118 Coating Apparatus 40 42 51 80 128 341
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 15 32 73 106 108 334
341 Coded Data Generation or Conversion 42 67 79 75 66 329
343 Communications: Radio Wave Antennas 48 56 51 76 89 320
708 Arithmetic Processing and Calculating (Electrical Computers) 44 38 92 73 68 315
702 DP: Measuring, Calibrating, or Testing (Data Processing) 44 42 84 68 67 305
219 Electric Heating 44 34 74 69 74 295
222 Dispensing (apparatus and process) 48 42 50 78 72 290
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 21 52 81 72 62 288
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 43 45 48 65 82 283
330 Amplifiers 53 35 45 65 84 282
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 43 53 64 47 72 279
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 27 56 57 71 61 272
451 Abrading 24 35 46 69 93 267
433 Dentistry 44 45 73 49 54 265
700 DP: Generic Control Systems or Specific Applications (Data Processing) 38 37 80 61 48 264
436 Chemistry: Analytical and Immunological Testing 47 41 53 57 61 259
482 Exercise Devices 31 46 61 61 51 250
084 Music 49 36 38 52 63 238
381 Electrical Audio Signal Processing Systems and Devices 27 45 61 56 49 238
062 Refrigeration 35 60 40 54 44 233
134 Cleaning and Liquid Contact with Solids 30 25 40 70 68 233
273 Amusement Devices: Games 33 57 65 46 31 232
318 Electricity: Motive Power Systems 38 29 52 48 61 228
315 Electric Lamp and Discharge Devices: Systems 43 32 45 50 56 226
239 Fluid Sprinkling, Spraying, and Diffusing 24 41 62 56 42 225
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 31 39 42 59 54 225
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 30 25 35 66 68 224
369 Dynamic Information Storage or Retrieval 44 39 33 46 60 222
015 Brushing, Scrubbing, and General Cleaning 36 33 42 58 51 220
310 Electrical Generator or Motor Structure 36 28 35 49 70 218
323 Electricity: Power Supply or Regulation Systems 35 39 43 42 54 213
060 Power Plants 27 30 46 58 51 212
426 Food or Edible Material: Processes, Compositions, and Products 35 37 31 44 64 211
224 Package and Article Carriers 45 40 43 44 37 209
333 Wave Transmission Lines and Networks 33 37 43 42 51 206
004 Baths, Closets, Sinks, and Spittoons 24 39 41 54 43 201
414 Material or Article Handling 43 25 24 54 53 199
417 Pumps 38 37 28 41 55 199
446 Amusement Devices: Toys 30 19 34 45 71 199
216 Etching a Substrate: Processes 24 27 32 52 53 188
297 Chairs and Seats 34 23 34 39 56 186
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 50 41 30 28 37 186
725 Interactive Video Distribution Systems 28 17 46 59 34 184
005 Beds 32 36 38 41 36 183
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 35 26 28 42 46 177
434 Education and Demonstration 15 25 37 49 50 176
119 Animal Husbandry 33 25 47 39 31 175
331 Oscillators 24 29 34 27 55 169
220 Receptacles 31 31 30 39 35 166
363 Electric Power Conversion Systems 23 34 32 40 36 165
174 Electricity: Conductors and Insulators 31 24 36 26 41 158
123 Internal-Combustion Engines 35 28 33 23 38 157
132 Toilet 14 15 41 47 36 153
351 Optics: Eye Examining, Vision Testing and Correcting 18 18 29 40 46 151
376 Induced Nuclear Reactions: Processes, Systems, and Elements 44 35 31 21 12 143
378 X-Ray or Gamma Ray Systems or Devices 23 24 37 22 36 142
074 Machine Element or Mechanism 21 21 33 31 32 138
307 Electrical Transmission or Interconnection Systems 21 32 23 32 30 138
313 Electric Lamp and Discharge Devices 26 18 33 29 32 138
099 Foods and Beverages: Apparatus 28 37 24 24 24 137
320 Electricity: Battery or Capacitor Charging or Discharging 18 34 23 23 39 137
423 Chemistry of Inorganic Compounds 33 19 23 33 27 135
380 Cryptography 23 23 33 17 31 127
070 Locks 20 21 32 31 21 125
294 Handling: Hand and Hoist-Line Implements 22 18 31 22 32 125
036 Boots, Shoes, and Leggings 16 23 24 31 30 124
114 Ships 29 17 23 24 30 123
252 Compositions 21 20 31 27 23 122
296 Land Vehicles: Bodies and Tops 19 18 26 26 32 121
349 Liquid Crystal Cells, Elements and Systems 34 16 27 22 22 121
040 Card, Picture, or Sign Exhibiting 25 19 29 26 21 120
081 Tools 21 18 27 24 28 118
211 Supports: Racks 19 22 26 28 23 118
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 17 16 18 32 32 115
033 Geometrical Instruments 25 16 24 26 23 114
242 Winding, Tensioning, or Guiding 21 20 18 33 22 114
405 Hydraulic and Earth Engineering 30 19 20 26 18 113
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 21 25 23 21 22 112
312 Supports: Cabinet Structure 22 16 25 28 21 112
228 Metal Fusion Bonding 21 22 16 28 24 111
030 Cutlery 21 19 25 23 21 109
602 Surgery: Splint, Brace, or Bandage 10 17 36 23 23 109
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 23 24 20 17 22 106
463 Amusement Devices: Games 13 16 28 23 26 106
367 Communications, Electrical: Acoustic Wave Systems and Devices 17 23 23 20 22 105
504 Plant Protecting and Regulating Compositions 16 35 15 20 15 101
251 Valves and Valve Actuation 14 10 22 21 32 99
285 Pipe Joints or Couplings 19 11 24 23 19 96
043 Fishing, Trapping, and Vermin Destroying 19 14 8 27 26 94
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 13 10 29 18 24 94
160 Flexible or Portable Closure, Partition, or Panel 15 14 18 14 32 93
165 Heat Exchange 15 15 18 20 24 92
292 Closure Fasteners 27 20 21 13 11 92
047 Plant Husbandry 11 14 23 23 19 90
180 Motor Vehicles 13 6 24 26 19 88
441 Buoys, Rafts, and Aquatic Devices 16 10 22 22 18 88
706 DP: Artificial Intelligence (Data Processing) 15 20 30 12 10 87
106 Compositions: Coating or Plastic 13 17 16 20 20 86
386 Television Signal Processing for Dynamic Recording or Reproducing 14 11 13 19 29 86
148 Metal Treatment 14 13 21 17 17 82
396 Photography 22 16 24 10 10 82
135 Tent, Canopy, Umbrella, or Cane 12 16 16 16 21 81
374 Thermal Measuring and Testing 2 15 24 15 25 81
024 Buckles, Buttons, Clasps, Etc. 12 15 19 24 10 80
400 Typewriting Machines 10 13 18 19 20 80
366 Agitating (e.g., of articles and materials) 18 13 11 19 18 79
215 Bottles and Jars 9 15 11 27 15 77
034 Drying and Gas or Vapor Contact with Solids 11 11 11 20 23 76
053 Package Making 14 14 18 21 9 76
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 13 17 20 6 20 76
601 Surgery: Kinesitherapy 6 11 25 17 17 76
181 Acoustics 9 23 14 15 14 75
221 Article Dispensing 9 12 16 24 13 74
208 Mineral Oils: Processes and Products 12 23 12 14 11 72
431 Combustion 9 3 8 16 34 70
229 Envelopes, Wrappers, and Paperboard Boxes 11 11 15 17 15 69
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 14 7 21 15 10 67
095 Gas Separation: Processes 11 13 17 11 14 66
384 Bearings 15 14 9 19 9 66
198 Conveyors: Power-Driven 16 12 10 16 11 65
392 Electric Resistance Heating Devices 7 4 16 15 23 65
044 Fuel and Related Compositions 10 13 21 7 13 64
108 Horizontally Supported Planar Surfaces 7 8 10 17 22 64
126 Stoves and Furnaces 13 5 12 17 16 63
101 Printing 5 4 27 13 13 62
136 Batteries: Thermoelectric and Photoelectric 14 6 9 12 21 62
188 Brakes 9 6 17 19 11 62
403 Joints and Connections 12 17 12 8 13 62
016 Miscellaneous Hardware 6 13 12 19 11 61
223 Apparel Apparatus 13 13 7 13 14 60
283 Printed Matter 9 10 16 12 13 60
404 Road Structure, Process, or Apparatus 18 7 11 11 11 58
089 Ordnance 8 9 16 16 8 57
445 Electric Lamp or Space Discharge Component or Device Manufacturing 3 9 10 17 18 57
271 Sheet Feeding or Delivering 15 7 10 11 13 56
368 Horology: Time Measuring Systems or Devices 7 10 14 14 11 56
200 Electricity: Circuit Makers and Breakers 12 7 13 11 12 55
353 Optics: Image Projectors 13 13 11 11 7 55
042 Firearms 12 10 10 11 11 54
241 Solid Material Comminution or Disintegration 13 10 11 10 10 54
269 Work Holders 11 7 12 10 14 54
505 Superconductor Technology: Apparatus, Material, Process 12 12 6 16 8 54
102 Ammunition and Explosives 13 6 11 14 9 53
408 Cutting by Use of Rotating Axially Moving Tool 5 10 14 15 9 53
401 Coating Implements with Material Supply 10 4 6 12 20 52
049 Movable or Removable Closures 12 6 13 13 7 51
415 Rotary Kinetic Fluid Motors or Pumps 15 11 10 6 9 51
281 Books, Strips, and Leaves 8 10 8 13 9 48
072 Metal Deforming 15 5 9 13 5 47
472 Amusement Devices 9 8 9 7 14 47
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 9 9 7 9 12 46
138 Pipes and Tubular Conduits 1 4 14 14 13 46
277 Seal for a Joint or Juncture 8 6 6 10 16 46
399 Electrophotography 11 6 6 15 7 45
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 6 6 12 11 10 45
209 Classifying, Separating, and Assorting Solids 7 10 11 8 7 43
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 6 10 5 11 11 43
182 Fire Escape, Ladder, or Scaffold 9 4 10 10 9 42
083 Cutting 10 6 6 11 8 41
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 5 6 11 8 11 41
254 Implements or Apparatus for Applying Pushing or Pulling Force 3 7 4 11 16 41
454 Ventilation 6 4 7 7 16 40
585 Chemistry of Hydrocarbon Compounds 4 3 11 9 13 40
116 Signals and Indicators 11 7 5 9 7 39
124 Mechanical Guns and Projectors 8 12 4 7 8 39
352 Optics: Motion Pictures 11 9 10 5 4 39
355 Photocopying 3 10 3 10 13 39
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 2 4 14 14 5 39
096 Gas Separation: Apparatus 11 8 6 5 8 38
056 Harvesters 8 6 9 8 6 37
175 Boring or Penetrating the Earth 9 4 7 8 9 37
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 5 4 8 7 13 37
338 Electrical Resistors 3 6 15 7 5 36
440 Marine Propulsion 9 5 7 8 7 36
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 6 9 4 10 7 36
383 Flexible Bags 4 5 4 10 12 35
301 Land Vehicles: Wheels and Axles 10 4 8 3 9 34
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 5 6 8 9 5 33
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 7 3 3 8 12 33
410 Freight Accommodation On Freight Carrier 4 8 6 9 6 33
416 Fluid Reaction Surfaces (i.e., Impellers) 10 4 2 7 10 33
169 Fire Extinguishers 3 4 5 9 10 31
164 Metal Founding 6 8 5 7 4 30
267 Spring Devices 5 6 2 7 10 30
336 Inductor Devices 6 6 8 8 2 30
475 Planetary Gear Transmission Systems or Components 4 6 9 6 5 30
227 Elongated-Member-Driving Apparatus 7 6 9 4 2 28
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 3 4 8 6 7 28
100 Presses 5 6 6 4 6 27
494 Imperforate Bowl: Centrifugal Separators 7 4 5 7 4 27
588 Hazardous or Toxic Waste Destruction or Containment 8 3 4 7 5 27
055 Gas Separation 2 2 7 11 4 26
332 Modulators 6 6 4 6 4 26
065 Glass Manufacturing 5 4 5 4 7 25
149 Explosive and Thermic Compositions or Charges 4 6 6 3 6 25
178 Telegraphy 6 4 5 8 2 25
261 Gas and Liquid Contact Apparatus 5 4 4 4 8 25
007 Compound Hand Tools 3 4 4 7 6 24
474 Endless Belt Power Transmission Systems or Components 5 5 4 0 10 24
104 Railways 6 7 5 4 1 23
152 Resilient Tires and Wheels 3 7 3 5 5 23
192 Clutches and Power-Stop Control 6 3 4 5 5 23
063 Jewelry 5 1 6 5 5 22
125 Stone Working 8 6 2 4 2 22
131 Tobacco 1 3 8 2 8 22
172 Earth Working 2 6 3 5 6 22
190 Trunks and Hand-Carried Luggage 4 3 1 5 8 21
071 Chemistry: Fertilizers 6 2 5 4 3 20
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 7 2 4 4 3 20
001 ** Classification Undetermined ** 0 1 2 12 4 19
092 Expansible Chamber Devices 0 5 7 3 4 19
184 Lubrication 4 3 5 1 6 19
256 Fences 3 5 2 3 6 19
279 Chucks or Sockets 4 2 4 7 2 19
409 Gear Cutting, Milling, or Planing 5 3 4 3 4 19
501 Compositions: Ceramic 3 4 6 6 0 19
150 Purses, Wallets, and Protective Covers 4 2 3 5 4 18
418 Rotary Expansible Chamber Devices 5 3 3 4 3 18
432 Heating 2 3 3 6 4 18
290 Prime-Mover Dynamo Plants 2 0 2 2 11 17
419 Powder Metallurgy Processes 2 5 6 2 2 17
450 Foundation Garments 1 1 3 5 7 17
225 Severing by Tearing or Breaking 4 3 5 3 1 16
249 Static Molds 2 5 5 3 1 16
112 Sewing 2 3 0 8 2 15
140 Wireworking 3 3 2 3 4 15
162 Paper Making and Fiber Liberation 2 1 2 5 5 15
203 Distillation: Processes, Separatory 3 2 6 2 2 15
337 Electricity: Electrothermally or Thermally Actuated Switches 0 5 2 5 3 15
109 Safes, Bank Protection, or a Related Device 1 4 3 4 2 14
110 Furnaces 4 2 4 1 3 14
177 Weighing Scales 1 4 6 2 1 14
194 Check-Actuated Control Mechanisms 4 3 3 2 2 14
236 Automatic Temperature and Humidity Regulation 2 4 2 3 3 14
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 3 3 2 5 14
082 Turning (e.g., for metal working) 1 3 1 4 4 13
144 Woodworking 6 1 2 3 1 13
303 Fluid-Pressure and Analogous Brake Systems 3 3 3 1 3 13
014 Bridges 1 3 1 4 3 12
037 Excavating 3 5 1 1 2 12
122 Liquid Heaters and Vaporizers 4 2 2 1 3 12
483 Tool Changing 1 2 4 2 3 12
054 Harness (for animals) 3 0 4 0 4 11
076 Metal Tools and Implements, Making 3 1 2 1 4 11
329 Demodulators 4 0 1 2 4 11
388 Electricity: Motor Control Systems 2 4 3 1 1 11
452 Butchering 4 3 1 2 1 11
086 Ammunition and Explosive-Charge Making 1 2 5 1 1 10
202 Distillation: Apparatus 3 2 2 1 2 10
212 Traversing Hoists 2 1 1 4 2 10
270 Sheet-Material Associating 2 3 2 3 0 10
460 Crop Threshing or Separating 2 2 2 3 1 10
038 Textiles: Ironing or Smoothing 2 0 2 3 2 9
105 Railway Rolling Stock 3 4 0 1 1 9
226 Advancing Material of Indeterminate Length 1 1 2 1 4 9
266 Metallurgical Apparatus 2 0 3 1 3 9
322 Electricity: Single Generator Systems 0 1 1 1 6 9
051 Abrasive Tool Making Process, Material, or Composition 1 1 1 2 3 8
127 Sugar, Starch, and Carbohydrates 3 1 3 1 0 8
168 Farriery 1 1 0 1 5 8
191 Electricity: Transmission To Vehicles 1 4 2 0 1 8
373 Industrial Electric Heating Furnaces 3 0 1 2 2 8
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 6 1 1 0 8
059 Chain, Staple, and Horseshoe Making 1 2 1 2 1 7
091 Motors: Expansible Chamber Type 2 1 2 1 1 7
173 Tool Driving or Impacting 1 3 3 0 0 7
346 Recorders 3 1 2 0 1 7
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 1 2 2 1 7
048 Gas: Heating and Illuminating 1 2 2 1 0 6
068 Textiles: Fluid Treating Apparatus 0 3 2 0 1 6
111 Planting 2 1 1 2 0 6
186 Merchandising 1 0 4 1 0 6
193 Conveyors, Chutes, Skids, Guides, and Ways 1 0 1 2 2 6
232 Deposit and Collection Receptacles 1 1 0 4 0 6
246 Railway Switches and Signals 1 0 4 0 1 6
407 Cutters, for Shaping 1 0 0 3 2 6
066 Textiles: Knitting 1 0 1 2 1 5
289 Knots and Knot Tying 0 1 0 3 1 5
406 Conveyors: Fluid Current 0 3 1 1 0 5
420 Alloys or Metallic Compositions 1 1 0 2 1 5
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 2 0 0 3 0 5
139 Textiles: Weaving 1 3 0 0 0 4
238 Railways: Surface Track 0 0 1 3 0 4
299 Mining or In Situ Disintegration of Hard Material 2 1 0 0 1 4
412 Bookbinding: Process and Apparatus 0 0 1 0 3 4
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 1 1 2 4
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 1 1 2 4
027 Undertaking 0 1 0 1 1 3
334 Tuners 0 0 0 2 1 3
057 Textiles: Spinning, Twisting, and Twining 0 1 1 0 0 2
157 Wheelwright Machines 0 0 1 1 0 2
159 Concentrating Evaporators 0 0 1 1 0 2
201 Distillation: Processes, Thermolytic 0 0 2 0 0 2
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 1 1 0 0 0 2
293 Vehicle Fenders 0 1 1 0 0 2
462 Books, Strips, and Leaves for Manifolding 1 0 1 0 0 2
476 Friction Gear Transmission Systems or Components 1 1 0 0 0 2
012 Boot and Shoe Making 0 0 0 1 0 1
019 Textiles: Fiber Preparation 1 0 0 0 0 1
023 Chemistry: Physical Processes 0 0 0 0 1 1
026 Textiles: Cloth Finishing 1 0 0 0 0 1
142 Wood Turning 0 1 0 0 0 1
196 Mineral Oils: Apparatus 0 0 1 0 0 1
237 Heating Systems 0 0 1 0 0 1
298 Land Vehicles: Dumping 1 0 0 0 0 1
300 Brush, Broom, and Mop Making 0 0 0 1 0 1
305 Wheel Substitutes for Land Vehicles 0 0 0 0 1 1
449 Bee Culture (propagating, raising, caring for bees) 1 0 0 0 0 1
492 Roll or Roller 0 0 1 0 0 1
512 Perfume Compositions 0 0 0 0 1 1
ALL ALL CLASSES 10473 11289 15791 16773 17492 71818



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Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
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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
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Last Modified: April 30, 2001