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

MICHIGAN

(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
123 Internal-Combustion Engines 139 115 124 134 204 716
280 Land Vehicles 117 130 138 166 165 716
296 Land Vehicles: Bodies and Tops 51 84 124 160 177 596
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 113 121 121 108 97 560
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 92 101 123 126 107 549
297 Chairs and Seats 72 94 89 91 68 414
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 37 55 68 79 143 382
074 Machine Element or Mechanism 58 75 96 74 72 375
073 Measuring and Testing 80 77 48 64 76 345
340 Communications: Electrical 57 64 62 68 72 323
029 Metal Working 51 62 65 61 78 317
052 Static Structures (e.g., Buildings) 40 62 56 66 83 307
428 Stock Material or Miscellaneous Articles 61 66 62 54 63 306
532 Organic Compounds (includes Classes 532-570) 48 60 56 49 57 270
435 Chemistry: Molecular Biology and Microbiology 42 46 42 55 42 227
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 35 56 42 38 50 221
060 Power Plants 19 44 41 32 70 206
439 Electrical Connectors 31 38 43 48 46 206
359 Optics: Systems (Including Communication) and Elements 24 24 39 47 61 195
248 Supports (e.g., for holding articles, etc.) 18 61 42 41 31 193
362 Illumination 28 36 40 43 46 193
137 Fluid Handling 24 38 41 43 43 189
192 Clutches and Power-Stop Control 28 33 56 34 34 185
180 Motor Vehicles 16 34 31 45 37 163
427 Coating Processes 43 27 34 30 28 162
219 Electric Heating 27 28 17 38 42 152
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 28 38 29 25 23 143
475 Planetary Gear Transmission Systems or Components 15 26 38 37 26 142
318 Electricity: Motive Power Systems 21 30 32 31 23 137
224 Package and Article Carriers 19 37 26 23 24 129
072 Metal Deforming 21 24 32 24 27 128
188 Brakes 15 18 36 13 44 126
285 Pipe Joints or Couplings 21 33 33 13 21 121
128 Surgery (includes Class 600) 19 28 28 25 16 116
049 Movable or Removable Closures 14 16 26 34 22 112
210 Liquid Purification or Separation 27 17 25 16 26 111
015 Brushing, Scrubbing, and General Cleaning 9 19 25 28 26 107
062 Refrigeration 8 25 23 21 29 106
477 Interrelated Power Delivery Controls, Including Engine Control 15 17 18 32 24 106
324 Electricity: Measuring and Testing 21 33 10 13 28 105
417 Pumps 13 10 13 33 33 102
303 Fluid-Pressure and Analogous Brake Systems 18 15 17 20 31 101
604 Surgery (Medicators and Receptors) 21 31 17 18 13 100
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 20 17 22 23 12 94
473 Games Using Tangible Projectile 19 17 22 23 12 93
292 Closure Fasteners 17 17 13 29 13 89
356 Optics: Measuring and Testing 18 13 22 23 13 89
606 Surgery (instruments) 14 13 30 17 15 89
239 Fluid Sprinkling, Spraying, and Diffusing 12 15 21 16 18 82
307 Electrical Transmission or Interconnection Systems 15 11 26 19 11 82
220 Receptacles 3 17 24 18 19 81
200 Electricity: Circuit Makers and Breakers 11 25 21 11 12 80
206 Special Receptacle or Package 12 18 22 8 20 80
312 Supports: Cabinet Structure 15 17 17 18 12 79
002 Apparel 12 11 16 25 14 78
174 Electricity: Conductors and Insulators 11 7 18 20 22 78
414 Material or Article Handling 17 16 12 19 14 78
198 Conveyors: Power-Driven 10 9 18 25 15 77
403 Joints and Connections 13 12 18 18 16 77
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 16 15 15 15 14 75
361 Electricity: Electrical Systems and Devices 13 27 12 13 9 74
138 Pipes and Tubular Conduits 7 7 17 19 23 73
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 6 23 22 10 12 73
165 Heat Exchange 5 16 16 13 22 72
702 DP: Measuring, Calibrating, or Testing (Data Processing) 10 15 17 10 20 72
164 Metal Founding 16 17 15 8 15 71
250 Radiant Energy 10 14 9 11 26 70
310 Electrical Generator or Motor Structure 10 14 21 9 16 70
251 Valves and Valve Actuation 5 11 15 22 15 68
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 10 11 19 16 12 68
134 Cleaning and Liquid Contact with Solids 14 14 22 11 5 66
242 Winding, Tensioning, or Guiding 21 16 13 9 7 66
700 DP: Generic Control Systems or Specific Applications (Data Processing) 9 15 12 15 15 66
252 Compositions 14 18 5 14 13 64
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 7 13 9 13 22 64
148 Metal Treatment 7 13 21 14 8 63
451 Abrading 15 11 13 13 10 62
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 11 9 17 7 17 61
301 Land Vehicles: Wheels and Axles 11 13 8 12 17 61
211 Supports: Racks 6 11 13 18 11 59
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 12 8 14 10 15 59
426 Food or Edible Material: Processes, Compositions, and Products 8 10 11 15 14 58
423 Chemistry of Inorganic Compounds 4 18 14 13 8 57
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 17 9 14 10 6 56
108 Horizontally Supported Planar Surfaces 15 10 11 10 8 54
454 Ventilation 10 9 10 15 10 54
024 Buckles, Buttons, Clasps, Etc. 8 20 9 7 9 53
222 Dispensing (apparatus and process) 8 8 8 16 12 52
228 Metal Fusion Bonding 9 10 8 13 12 52
482 Exercise Devices 8 15 9 11 9 52
343 Communications: Radio Wave Antennas 9 4 7 12 18 50
016 Miscellaneous Hardware 14 10 9 9 7 49
033 Geometrical Instruments 9 8 6 7 18 48
040 Card, Picture, or Sign Exhibiting 10 8 13 12 5 48
004 Baths, Closets, Sinks, and Spittoons 3 10 8 16 10 47
382 Image Analysis 5 16 8 7 11 47
083 Cutting 8 6 13 10 9 46
229 Envelopes, Wrappers, and Paperboard Boxes 7 15 10 7 7 46
294 Handling: Hand and Hoist-Line Implements 9 9 6 13 9 46
118 Coating Apparatus 11 10 8 6 9 44
267 Spring Devices 3 8 8 10 15 44
106 Compositions: Coating or Plastic 8 11 10 8 6 43
043 Fishing, Trapping, and Vermin Destroying 4 9 14 10 4 41
277 Seal for a Joint or Juncture 6 5 12 9 9 41
293 Vehicle Fenders 5 5 10 5 16 41
349 Liquid Crystal Cells, Elements and Systems 7 8 13 8 5 41
474 Endless Belt Power Transmission Systems or Components 2 11 16 3 9 41
320 Electricity: Battery or Capacitor Charging or Discharging 4 8 5 7 16 40
269 Work Holders 6 6 10 11 5 38
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 4 9 8 7 9 37
315 Electric Lamp and Discharge Devices: Systems 6 8 6 7 10 37
418 Rotary Expansible Chamber Devices 2 6 6 18 5 37
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 5 6 11 10 5 37
005 Beds 8 8 6 7 7 36
119 Animal Husbandry 6 11 7 5 7 36
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 7 8 6 5 10 36
438 Semiconductor Device Manufacturing: Process 5 5 4 9 12 35
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 4 6 16 5 4 35
081 Tools 5 3 12 7 7 34
114 Ships 6 4 5 10 9 34
384 Bearings 4 9 9 7 5 34
092 Expansible Chamber Devices 7 7 10 6 3 33
455 Telecommunications 6 4 4 10 9 33
065 Glass Manufacturing 2 9 9 4 8 32
204 Chemistry: Electrical and Wave Energy 4 5 4 11 8 32
385 Optical Waveguides 2 6 10 4 9 31
408 Cutting by Use of Rotating Axially Moving Tool 9 4 7 4 7 31
381 Electrical Audio Signal Processing Systems and Devices 9 11 1 4 5 30
433 Dentistry 3 7 7 8 5 30
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 3 9 7 4 6 29
410 Freight Accommodation On Freight Carrier 2 2 8 11 6 29
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 4 2 5 11 7 29
053 Package Making 4 8 6 6 4 28
124 Mechanical Guns and Projectors 6 6 7 9 0 28
434 Education and Demonstration 3 8 7 5 5 28
710 Input/Output (Electrical Computers and Digital Processing Systems) 5 8 3 8 4 28
030 Cutlery 2 3 6 9 7 27
070 Locks 2 6 9 6 4 27
160 Flexible or Portable Closure, Partition, or Panel 5 5 7 6 4 27
215 Bottles and Jars 5 6 3 7 6 27
374 Thermal Measuring and Testing 12 7 1 4 3 27
034 Drying and Gas or Vapor Contact with Solids 5 6 4 7 4 26
084 Music 4 9 5 4 4 26
273 Amusement Devices: Games 10 5 3 5 3 26
409 Gear Cutting, Milling, or Planing 9 5 2 6 4 26
181 Acoustics 3 9 5 7 1 25
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 11 5 6 3 25
036 Boots, Shoes, and Leggings 7 9 4 3 1 24
099 Foods and Beverages: Apparatus 5 4 1 6 8 24
313 Electric Lamp and Discharge Devices 4 4 8 7 1 24
366 Agitating (e.g., of articles and materials) 2 3 5 10 4 24
415 Rotary Kinetic Fluid Motors or Pumps 1 2 3 10 8 24
436 Chemistry: Analytical and Immunological Testing 4 5 4 5 6 24
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 3 2 10 6 3 24
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 3 2 2 7 10 24
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 4 7 2 4 6 23
602 Surgery: Splint, Brace, or Bandage 2 10 2 7 2 23
095 Gas Separation: Processes 3 4 8 2 5 22
116 Signals and Indicators 5 3 4 2 8 22
271 Sheet Feeding or Delivering 5 2 3 5 7 22
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 2 5 6 5 4 22
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 5 5 3 7 21
132 Toilet 3 3 7 4 4 21
047 Plant Husbandry 4 5 4 5 2 20
126 Stoves and Furnaces 3 5 7 4 1 20
254 Implements or Apparatus for Applying Pushing or Pulling Force 6 4 3 4 3 20
184 Lubrication 2 6 1 5 5 19
341 Coded Data Generation or Conversion 2 7 5 0 5 19
351 Optics: Eye Examining, Vision Testing and Correcting 2 5 9 1 2 19
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 2 6 5 1 5 19
713 Support (Electrical Computers and Digital Processing Systems) 1 4 4 5 5 19
037 Excavating 1 0 4 6 7 18
042 Firearms 5 7 2 1 3 18
223 Apparel Apparatus 3 1 6 5 3 18
348 Television 1 5 8 2 2 18
370 Multiplex Communications 2 3 3 7 3 18
372 Coherent Light Generators 5 4 2 4 3 18
405 Hydraulic and Earth Engineering 6 6 3 2 1 18
407 Cutters, for Shaping 4 5 3 2 4 18
419 Powder Metallurgy Processes 2 5 6 1 4 18
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 5 4 4 2 3 18
601 Surgery: Kinesitherapy 1 3 1 2 11 18
082 Turning (e.g., for metal working) 3 4 6 1 3 17
261 Gas and Liquid Contact Apparatus 2 5 6 3 1 17
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 4 3 0 8 2 17
501 Compositions: Ceramic 3 6 6 2 0 17
055 Gas Separation 2 7 2 1 4 16
104 Railways 5 4 3 1 3 16
136 Batteries: Thermoelectric and Photoelectric 0 2 8 4 2 16
182 Fire Escape, Ladder, or Scaffold 3 4 3 3 3 16
236 Automatic Temperature and Humidity Regulation 3 3 4 3 3 16
266 Metallurgical Apparatus 5 1 1 6 3 16
504 Plant Protecting and Regulating Compositions 7 1 2 3 3 16
068 Textiles: Fluid Treating Apparatus 2 6 3 1 3 15
096 Gas Separation: Apparatus 4 1 3 1 6 15
209 Classifying, Separating, and Assorting Solids 1 6 1 4 3 15
241 Solid Material Comminution or Disintegration 1 5 2 4 3 15
378 X-Ray or Gamma Ray Systems or Devices 2 5 2 5 1 15
401 Coating Implements with Material Supply 0 0 7 5 3 15
446 Amusement Devices: Toys 2 3 3 5 2 15
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 3 2 2 2 6 15
383 Flexible Bags 4 5 2 1 2 14
440 Marine Propulsion 4 3 2 3 2 14
100 Presses 2 4 4 2 1 13
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 2 1 4 3 3 13
375 Pulse or Digital Communications 1 3 2 1 6 13
431 Combustion 1 4 2 4 2 13
607 Surgery: Light, Thermal, and Electrical Application 4 5 2 0 2 13
714 Error Detection/Correction and Fault Detection/Recovery 3 3 4 1 2 13
091 Motors: Expansible Chamber Type 1 4 2 2 3 12
169 Fire Extinguishers 3 2 1 4 2 12
216 Etching a Substrate: Processes 2 1 3 3 3 12
244 Aeronautics 2 1 2 4 3 12
249 Static Molds 2 3 3 2 2 12
279 Chucks or Sockets 2 3 5 1 1 12
323 Electricity: Power Supply or Regulation Systems 2 5 1 2 2 12
363 Electric Power Conversion Systems 4 0 1 1 6 12
379 Telephonic Communications 0 2 4 3 3 12
416 Fluid Reaction Surfaces (i.e., Impellers) 1 2 5 1 3 12
420 Alloys or Metallic Compositions 0 2 5 1 4 12
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 3 2 3 4 0 12
717 DP: Software Development, Installation, and Management (Data Processing) 1 2 4 1 4 12
144 Woodworking 2 3 1 4 1 11
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 2 4 1 1 11
706 DP: Artificial Intelligence (Data Processing) 2 5 1 0 3 11
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 2 1 0 4 3 10
051 Abrasive Tool Making Process, Material, or Composition 6 0 1 2 1 10
105 Railway Rolling Stock 2 3 0 3 2 10
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 4 3 2 0 1 10
256 Fences 3 4 0 2 1 10
290 Prime-Mover Dynamo Plants 0 3 2 0 5 10
369 Dynamic Information Storage or Retrieval 1 1 0 3 5 10
406 Conveyors: Fluid Current 1 3 2 1 3 10
056 Harvesters 3 2 2 1 1 9
221 Article Dispensing 2 2 0 1 4 9
305 Wheel Substitutes for Land Vehicles 2 3 0 1 3 9
336 Inductor Devices 1 1 3 4 0 9
089 Ordnance 4 1 0 1 2 8
175 Boring or Penetrating the Earth 0 1 0 4 3 8
177 Weighing Scales 0 1 3 2 2 8
194 Check-Actuated Control Mechanisms 0 3 1 2 2 8
338 Electrical Resistors 0 0 4 2 2 8
365 Static Information Storage and Retrieval 2 0 2 3 1 8
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 1 3 2 1 8
404 Road Structure, Process, or Apparatus 2 1 3 1 1 8
432 Heating 1 2 3 2 0 8
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 2 0 1 1 4 8
066 Textiles: Knitting 1 2 3 1 0 7
152 Resilient Tires and Wheels 3 0 2 1 1 7
162 Paper Making and Fiber Liberation 2 3 1 1 0 7
237 Heating Systems 2 0 1 2 2 7
283 Printed Matter 0 1 2 2 2 7
322 Electricity: Single Generator Systems 3 1 1 1 1 7
399 Electrophotography 4 0 1 1 1 7
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1 2 2 2 0 7
711 Memory (Electrical Computers and Digital Processing Systems) 2 0 1 3 1 7
122 Liquid Heaters and Vaporizers 1 0 2 3 0 6
131 Tobacco 0 3 1 2 0 6
135 Tent, Canopy, Umbrella, or Cane 0 2 1 1 2 6
149 Explosive and Thermic Compositions or Charges 0 0 2 1 3 6
172 Earth Working 2 1 0 2 1 6
227 Elongated-Member-Driving Apparatus 0 2 0 3 1 6
232 Deposit and Collection Receptacles 1 3 1 0 1 6
360 Dynamic Magnetic Information Storage or Retrieval 2 2 1 0 1 6
392 Electric Resistance Heating Devices 2 3 0 1 0 6
450 Foundation Garments 1 1 1 3 0 6
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 1 4 1 0 0 6
044 Fuel and Related Compositions 1 1 2 1 0 5
101 Printing 0 1 1 2 1 5
331 Oscillators 2 0 2 1 0 5
333 Wave Transmission Lines and Networks 0 1 3 0 1 5
355 Photocopying 0 1 2 0 2 5
358 Facsimile and Static Presentation Processing 0 2 0 0 3 5
368 Horology: Time Measuring Systems or Devices 2 0 0 2 1 5
380 Cryptography 3 0 2 0 0 5
441 Buoys, Rafts, and Aquatic Devices 0 0 3 2 0 5
585 Chemistry of Hydrocarbon Compounds 1 1 0 1 2 5
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 1 1 1 1 5
054 Harness (for animals) 0 2 0 2 0 4
102 Ammunition and Explosives 2 1 0 1 0 4
111 Planting 1 1 1 1 0 4
112 Sewing 0 0 2 1 1 4
157 Wheelwright Machines 0 0 0 2 2 4
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 1 2 1 4
326 Electronic Digital Logic Circuitry 1 0 1 1 1 4
330 Amplifiers 1 0 2 1 0 4
337 Electricity: Electrothermally or Thermally Actuated Switches 1 1 1 1 0 4
396 Photography 2 1 1 0 0 4
445 Electric Lamp or Space Discharge Component or Device Manufacturing 1 2 1 0 0 4
483 Tool Changing 0 1 1 2 0 4
001 ** Classification Undetermined ** 1 0 1 0 1 3
014 Bridges 1 1 0 0 1 3
063 Jewelry 1 0 0 2 0 3
110 Furnaces 1 0 0 1 1 3
208 Mineral Oils: Processes and Products 1 0 1 1 0 3
212 Traversing Hoists 2 0 0 1 0 3
225 Severing by Tearing or Breaking 1 0 1 1 0 3
347 Incremental Printing of Symbolic Information 0 1 0 1 1 3
353 Optics: Image Projectors 2 1 0 0 0 3
388 Electricity: Motor Control Systems 1 1 0 1 0 3
400 Typewriting Machines 0 0 0 3 0 3
452 Butchering 1 0 0 1 1 3
463 Amusement Devices: Games 0 1 1 1 0 3
472 Amusement Devices 0 0 3 0 0 3
492 Roll or Roller 1 1 0 1 0 3
708 Arithmetic Processing and Calculating (Electrical Computers) 0 0 3 0 0 3
076 Metal Tools and Implements, Making 0 0 0 0 2 2
171 Unearthing Plants or Buried Objects 0 0 0 2 0 2
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 1 0 0 1 0 2
203 Distillation: Processes, Separatory 1 1 0 0 0 2
270 Sheet-Material Associating 0 2 0 0 0 2
281 Books, Strips, and Leaves 1 0 1 0 0 2
332 Modulators 0 0 0 0 2 2
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 1 0 1 0 2
386 Television Signal Processing for Dynamic Recording or Reproducing 2 0 0 0 0 2
412 Bookbinding: Process and Apparatus 0 0 1 1 0 2
588 Hazardous or Toxic Waste Destruction or Containment 0 1 0 0 1 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 1 1 0 2
725 Interactive Video Distribution Systems 1 0 0 1 0 2
007 Compound Hand Tools 0 0 0 0 1 1
028 Textiles: Manufacturing 0 0 0 1 0 1
048 Gas: Heating and Illuminating 0 0 0 1 0 1
059 Chain, Staple, and Horseshoe Making 1 0 0 0 0 1
086 Ammunition and Explosive-Charge Making 0 0 0 1 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 0 1 1
125 Stone Working 0 0 1 0 0 1
127 Sugar, Starch, and Carbohydrates 1 0 0 0 0 1
139 Textiles: Weaving 0 0 0 0 1 1
168 Farriery 1 0 0 0 0 1
173 Tool Driving or Impacting 0 0 0 1 0 1
185 Motors: Spring, Weight, or Animal Powered 0 0 0 1 0 1
191 Electricity: Transmission To Vehicles 0 0 0 0 1 1
213 Railway Draft Appliances 0 1 0 0 0 1
226 Advancing Material of Indeterminate Length 0 0 0 0 1 1
238 Railways: Surface Track 0 1 0 0 0 1
289 Knots and Knot Tying 1 0 0 0 0 1
298 Land Vehicles: Dumping 0 0 0 1 0 1
299 Mining or In Situ Disintegration of Hard Material 0 0 1 0 0 1
352 Optics: Motion Pictures 0 0 1 0 0 1
453 Coin Handling 0 0 0 1 0 1
476 Friction Gear Transmission Systems or Components 0 0 0 1 0 1
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 0 0 0 1 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 0 1 1
ALL ALL CLASSES 2838 3507 3680 3724 3853 17602



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