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

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 1996 1997 1998 1999 2000 Total
280 Land Vehicles 157 117 130 138 166 708
123 Internal-Combustion Engines 144 139 115 124 134 656
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 127 113 121 121 108 590
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 84 92 101 123 125 525
296 Land Vehicles: Bodies and Tops 72 51 84 124 160 491
297 Chairs and Seats 72 72 94 89 91 418
074 Machine Element or Mechanism 91 58 75 96 74 394
073 Measuring and Testing 95 80 77 48 64 364
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 63 37 55 68 79 302
428 Stock Material or Miscellaneous Articles 45 61 66 62 54 288
029 Metal Working 48 51 62 65 61 287
340 Communications: Electrical 34 58 63 62 68 285
532 Organic Compounds (includes Classes 532-570) 69 48 60 56 49 282
052 Static Structures (e.g., Buildings) 42 40 62 56 66 266
435 Chemistry: Molecular Biology and Microbiology 25 42 46 42 55 210
248 Supports (e.g., for holding articles, etc.) 45 18 61 42 41 207
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 32 35 56 42 38 203
192 Clutches and Power-Stop Control 33 28 33 56 34 184
439 Electrical Connectors 22 31 38 43 48 182
362 Illumination 33 28 36 40 43 180
427 Coating Processes 35 43 27 34 31 170
060 Power Plants 33 19 44 41 32 169
137 Fluid Handling 21 24 38 41 43 167
359 Optics: Systems (Including Communication) and Elements 22 24 24 39 47 156
180 Motor Vehicles 26 16 34 31 45 152
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 31 28 38 29 25 151
475 Planetary Gear Transmission Systems or Components 25 15 26 38 37 141
285 Pipe Joints or Couplings 35 21 33 33 13 135
318 Electricity: Motive Power Systems 18 21 30 32 31 132
072 Metal Deforming 30 21 24 32 24 131
224 Package and Article Carriers 22 19 37 26 23 127
219 Electric Heating 16 27 28 17 38 126
128 Surgery (includes Class 600) 24 19 28 28 26 125
604 Surgery (Medicators and Receptors) 31 21 31 17 17 117
210 Liquid Purification or Separation 31 27 17 25 16 116
049 Movable or Removable Closures 23 14 16 26 34 113
188 Brakes 29 15 18 36 13 111
015 Brushing, Scrubbing, and General Cleaning 23 9 19 25 28 104
324 Electricity: Measuring and Testing 24 21 33 11 13 102
477 Interrelated Power Delivery Controls, Including Engine Control 20 15 17 18 32 102
473 Games Using Tangible Projectile 20 19 17 22 23 101
303 Fluid-Pressure and Analogous Brake Systems 27 18 15 17 20 97
062 Refrigeration 14 8 25 23 21 91
292 Closure Fasteners 15 17 17 13 29 91
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 8 20 17 22 23 90
356 Optics: Measuring and Testing 13 18 13 22 23 89
417 Pumps 20 13 10 13 33 89
606 Surgery (instruments) 11 14 13 30 17 85
361 Electricity: Electrical Systems and Devices 19 13 27 12 13 84
414 Material or Article Handling 19 17 16 12 19 83
002 Apparel 16 12 11 16 25 80
198 Conveyors: Power-Driven 17 10 9 18 25 79
242 Winding, Tensioning, or Guiding 20 21 16 13 9 79
307 Electrical Transmission or Interconnection Systems 8 15 11 26 19 79
200 Electricity: Circuit Makers and Breakers 10 11 25 21 11 78
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 17 6 23 22 10 78
164 Metal Founding 19 16 17 15 8 75
206 Special Receptacle or Package 14 12 18 22 8 74
220 Receptacles 12 3 17 24 18 74
312 Supports: Cabinet Structure 8 15 17 17 17 74
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 13 16 15 15 15 74
403 Joints and Connections 10 13 12 18 18 71
239 Fluid Sprinkling, Spraying, and Diffusing 6 12 15 21 16 70
134 Cleaning and Liquid Contact with Solids 8 14 14 22 11 69
165 Heat Exchange 18 5 16 16 13 68
451 Abrading 15 15 11 13 13 67
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 22 12 8 14 10 66
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 6 10 13 18 18 65
700 DP: Generic Control Systems or Specific Applications (Data Processing) 14 9 15 12 15 65
252 Compositions 13 14 18 5 14 64
148 Metal Treatment 8 7 13 21 14 63
310 Electrical Generator or Motor Structure 9 10 14 21 9 63
108 Horizontally Supported Planar Surfaces 16 15 10 11 10 62
251 Valves and Valve Actuation 8 5 11 15 22 61
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 11 17 9 14 10 61
138 Pipes and Tubular Conduits 9 7 7 17 19 59
174 Electricity: Conductors and Insulators 3 11 7 18 20 59
702 DP: Measuring, Calibrating, or Testing (Data Processing) 7 10 15 17 10 59
423 Chemistry of Inorganic Compounds 8 4 18 14 13 57
301 Land Vehicles: Wheels and Axles 12 11 13 8 12 56
016 Miscellaneous Hardware 12 14 10 9 9 54
024 Buckles, Buttons, Clasps, Etc. 9 8 21 9 7 54
211 Supports: Racks 6 6 11 13 18 54
250 Radiant Energy 10 10 14 9 11 54
482 Exercise Devices 11 8 15 9 11 54
426 Food or Edible Material: Processes, Compositions, and Products 9 8 10 11 15 53
229 Envelopes, Wrappers, and Paperboard Boxes 13 7 15 10 7 52
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 7 11 9 17 7 51
454 Ventilation 7 10 9 10 15 51
222 Dispensing (apparatus and process) 8 8 8 8 16 48
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 6 7 13 9 13 48
040 Card, Picture, or Sign Exhibiting 4 10 8 13 12 47
004 Baths, Closets, Sinks, and Spittoons 9 3 10 8 16 46
294 Handling: Hand and Hoist-Line Implements 9 9 9 6 13 46
228 Metal Fusion Bonding 5 9 10 8 13 45
033 Geometrical Instruments 12 10 9 6 7 44
043 Fishing, Trapping, and Vermin Destroying 7 4 9 14 10 44
106 Compositions: Coating or Plastic 7 8 11 10 8 44
118 Coating Apparatus 9 11 10 8 6 44
382 Image Analysis 8 5 16 8 7 44
005 Beds 14 8 8 6 7 43
277 Seal for a Joint or Juncture 11 6 5 12 9 43
083 Cutting 5 8 6 13 10 42
269 Work Holders 9 6 6 10 11 42
349 Liquid Crystal Cells, Elements and Systems 5 7 8 13 8 41
474 Endless Belt Power Transmission Systems or Components 8 2 11 16 3 40
418 Rotary Expansible Chamber Devices 7 2 6 6 18 39
124 Mechanical Guns and Projectors 10 6 6 7 9 38
343 Communications: Radio Wave Antennas 7 8 4 7 12 38
384 Bearings 8 4 9 9 7 37
092 Expansible Chamber Devices 6 7 7 10 6 36
119 Animal Husbandry 7 6 11 7 5 36
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 7 4 9 8 7 35
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 3 5 5 12 10 35
273 Amusement Devices: Games 11 10 5 3 5 34
053 Package Making 9 4 8 6 6 33
181 Acoustics 9 3 9 5 7 33
267 Spring Devices 5 3 7 8 10 33
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 7 7 8 6 5 33
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 4 6 16 5 33
455 Telecommunications 8 6 4 4 10 32
315 Electric Lamp and Discharge Devices: Systems 4 6 8 6 7 31
070 Locks 7 2 6 9 6 30
293 Vehicle Fenders 5 5 5 10 5 30
313 Electric Lamp and Discharge Devices 7 4 4 8 7 30
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 7 3 9 7 4 30
381 Electrical Audio Signal Processing Systems and Devices 5 9 11 1 4 30
081 Tools 2 5 3 12 7 29
114 Ships 4 6 4 5 10 29
408 Cutting by Use of Rotating Axially Moving Tool 5 9 4 7 4 29
438 Semiconductor Device Manufacturing: Process 6 5 5 4 9 29
036 Boots, Shoes, and Leggings 5 7 9 4 3 28
320 Electricity: Battery or Capacitor Charging or Discharging 4 4 8 5 7 28
410 Freight Accommodation On Freight Carrier 5 2 2 8 11 28
433 Dentistry 3 3 7 7 8 28
030 Cutlery 7 2 3 6 9 27
034 Drying and Gas or Vapor Contact with Solids 5 5 6 4 7 27
204 Chemistry: Electrical and Wave Energy 3 4 5 4 11 27
374 Thermal Measuring and Testing 3 12 7 1 4 27
434 Education and Demonstration 4 3 8 7 5 27
710 Input/Output (Electrical Computers and Digital Processing Systems) 3 5 8 3 8 27
065 Glass Manufacturing 2 2 9 9 4 26
084 Music 4 4 9 5 4 26
366 Agitating (e.g., of articles and materials) 6 2 3 5 10 26
602 Surgery: Splint, Brace, or Bandage 5 2 10 2 7 26
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 4 4 2 5 11 26
160 Flexible or Portable Closure, Partition, or Panel 2 5 5 7 6 25
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 4 3 2 10 6 25
047 Plant Husbandry 6 4 5 4 5 24
215 Bottles and Jars 3 5 6 3 7 24
385 Optical Waveguides 2 2 6 10 4 24
409 Gear Cutting, Milling, or Planing 2 9 5 2 6 24
415 Rotary Kinetic Fluid Motors or Pumps 8 1 2 3 10 24
436 Chemistry: Analytical and Immunological Testing 6 4 5 4 5 24
501 Compositions: Ceramic 7 3 6 6 2 24
407 Cutters, for Shaping 8 4 5 3 2 22
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 8 3 2 2 7 22
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 11 5 6 22
126 Stoves and Furnaces 2 3 5 7 4 21
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 4 4 7 2 4 21
254 Implements or Apparatus for Applying Pushing or Pulling Force 4 6 4 3 4 21
042 Firearms 7 4 6 2 1 20
099 Foods and Beverages: Apparatus 4 5 4 1 6 20
184 Lubrication 6 2 6 1 5 20
271 Sheet Feeding or Delivering 5 5 2 3 5 20
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 2 2 5 6 5 20
405 Hydraulic and Earth Engineering 3 6 6 3 2 20
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 5 4 3 0 8 20
037 Excavating 8 1 0 4 6 19
095 Gas Separation: Processes 2 3 4 8 2 19
132 Toilet 2 3 3 7 4 19
223 Apparel Apparatus 4 3 1 6 5 19
341 Coded Data Generation or Conversion 5 2 7 5 0 19
351 Optics: Eye Examining, Vision Testing and Correcting 2 2 5 9 1 19
419 Powder Metallurgy Processes 5 2 5 6 1 19
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 7 3 2 3 4 19
136 Batteries: Thermoelectric and Photoelectric 4 0 2 8 4 18
236 Automatic Temperature and Humidity Regulation 5 3 3 4 3 18
261 Gas and Liquid Contact Apparatus 2 2 5 6 3 18
348 Television 2 1 5 8 2 18
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 9 3 2 2 2 18
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 4 2 6 5 1 18
104 Railways 4 5 4 3 1 17
370 Multiplex Communications 3 2 3 3 6 17
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 2 5 4 4 2 17
713 Support (Electrical Computers and Digital Processing Systems) 3 1 4 4 5 17
068 Textiles: Fluid Treating Apparatus 4 2 6 3 1 16
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 2 1 5 5 3 16
082 Turning (e.g., for metal working) 2 3 4 6 1 16
116 Signals and Indicators 2 5 3 4 2 16
241 Solid Material Comminution or Disintegration 4 1 5 2 4 16
372 Coherent Light Generators 1 5 4 2 4 16
378 X-Ray or Gamma Ray Systems or Devices 2 2 5 2 5 16
446 Amusement Devices: Toys 3 2 3 3 5 16
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 4 2 1 4 4 15
266 Metallurgical Apparatus 2 5 1 1 6 15
504 Plant Protecting and Regulating Compositions 2 7 1 2 3 15
055 Gas Separation 2 2 7 2 1 14
182 Fire Escape, Ladder, or Scaffold 1 3 4 3 3 14
209 Classifying, Separating, and Assorting Solids 2 1 6 1 4 14
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 4 3 2 4 1 14
379 Telephonic Communications 5 0 2 4 3 14
383 Flexible Bags 2 4 5 2 1 14
431 Combustion 3 1 4 2 4 14
100 Presses 1 2 4 4 2 13
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 4 4 3 2 0 13
401 Coating Implements with Material Supply 1 0 0 7 5 13
440 Marine Propulsion 1 4 3 2 3 13
607 Surgery: Light, Thermal, and Electrical Application 2 4 5 2 0 13
714 Error Detection/Correction and Fault Detection/Recovery 2 3 3 4 1 13
096 Gas Separation: Apparatus 3 4 1 3 1 12
216 Etching a Substrate: Processes 3 2 1 3 3 12
249 Static Molds 2 2 3 3 2 12
279 Chucks or Sockets 1 2 3 5 1 12
323 Electricity: Power Supply or Regulation Systems 2 2 5 1 2 12
416 Fluid Reaction Surfaces (i.e., Impellers) 3 1 2 5 1 12
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 4 2 1 0 4 11
152 Resilient Tires and Wheels 5 3 0 2 1 11
169 Fire Extinguishers 1 3 2 1 4 11
256 Fences 2 3 4 0 2 11
336 Inductor Devices 2 1 1 3 4 11
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 4 1 2 2 2 11
432 Heating 3 1 2 3 2 11
051 Abrasive Tool Making Process, Material, or Composition 1 6 0 1 2 10
091 Motors: Expansible Chamber Type 1 1 4 2 2 10
144 Woodworking 0 2 3 1 4 10
706 DP: Artificial Intelligence (Data Processing) 2 2 5 1 0 10
089 Ordnance 3 4 1 0 1 9
105 Railway Rolling Stock 1 2 3 0 3 9
162 Paper Making and Fiber Liberation 2 2 3 1 1 9
244 Aeronautics 0 2 1 2 4 9
322 Electricity: Single Generator Systems 3 3 1 1 1 9
338 Electrical Resistors 3 0 0 4 2 9
375 Pulse or Digital Communications 2 1 3 2 1 9
717 DP: Software Development, Installation, and Management (Data Processing) 2 1 2 4 0 9
056 Harvesters 0 3 2 2 1 8
101 Printing 4 0 1 1 2 8
102 Ammunition and Explosives 4 2 1 0 1 8
175 Boring or Penetrating the Earth 3 0 1 0 4 8
194 Check-Actuated Control Mechanisms 2 0 3 1 2 8
365 Static Information Storage and Retrieval 1 2 0 2 3 8
404 Road Structure, Process, or Apparatus 1 2 1 3 1 8
406 Conveyors: Fluid Current 1 1 3 2 1 8
420 Alloys or Metallic Compositions 0 0 2 5 1 8
601 Surgery: Kinesitherapy 1 1 3 1 2 8
711 Memory (Electrical Computers and Digital Processing Systems) 2 2 0 1 3 8
066 Textiles: Knitting 0 1 2 3 1 7
122 Liquid Heaters and Vaporizers 1 1 0 2 3 7
131 Tobacco 1 0 3 1 2 7
221 Article Dispensing 2 2 2 0 1 7
283 Printed Matter 2 0 1 2 2 7
331 Oscillators 2 2 0 2 1 7
363 Electric Power Conversion Systems 1 4 0 1 1 7
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 1 3 2 7
392 Electric Resistance Heating Devices 1 2 3 0 1 7
399 Electrophotography 1 4 0 1 1 7
445 Electric Lamp or Space Discharge Component or Device Manufacturing 3 1 2 1 0 7
044 Fuel and Related Compositions 1 1 1 2 1 6
177 Weighing Scales 0 0 1 3 2 6
237 Heating Systems 1 2 0 1 2 6
305 Wheel Substitutes for Land Vehicles 0 2 3 0 1 6
360 Dynamic Magnetic Information Storage or Retrieval 1 2 2 1 0 6
396 Photography 2 2 1 1 0 6
450 Foundation Garments 0 1 1 1 3 6
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 1 4 1 0 6
054 Harness (for animals) 1 0 2 0 2 5
135 Tent, Canopy, Umbrella, or Cane 1 0 2 1 1 5
172 Earth Working 0 2 1 0 2 5
225 Severing by Tearing or Breaking 2 1 0 1 1 5
227 Elongated-Member-Driving Apparatus 0 0 2 0 3 5
232 Deposit and Collection Receptacles 0 1 3 1 0 5
290 Prime-Mover Dynamo Plants 0 0 3 2 0 5
333 Wave Transmission Lines and Networks 1 0 1 3 0 5
369 Dynamic Information Storage or Retrieval 0 1 1 0 3 5
380 Cryptography 0 3 0 2 0 5
400 Typewriting Machines 2 0 0 0 3 5
441 Buoys, Rafts, and Aquatic Devices 0 0 0 3 2 5
110 Furnaces 2 1 0 0 1 4
111 Planting 0 1 1 1 1 4
112 Sewing 1 0 0 2 1 4
149 Explosive and Thermic Compositions or Charges 1 0 0 2 1 4
326 Electronic Digital Logic Circuitry 1 1 0 1 1 4
330 Amplifiers 0 1 0 2 1 4
337 Electricity: Electrothermally or Thermally Actuated Switches 0 1 1 1 1 4
355 Photocopying 1 0 1 2 0 4
368 Horology: Time Measuring Systems or Devices 0 2 0 0 2 4
388 Electricity: Motor Control Systems 1 1 1 0 1 4
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 2 0 1 1 4
483 Tool Changing 0 0 1 1 2 4
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 1 1 1 1 4
708 Arithmetic Processing and Calculating (Electrical Computers) 1 0 0 3 0 4
014 Bridges 1 1 1 0 0 3
063 Jewelry 0 1 0 0 2 3
076 Metal Tools and Implements, Making 3 0 0 0 0 3
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 1 1 0 0 1 3
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 0 1 2 3
208 Mineral Oils: Processes and Products 0 1 0 1 1 3
212 Traversing Hoists 0 2 0 0 1 3
270 Sheet-Material Associating 1 0 2 0 0 3
281 Books, Strips, and Leaves 1 1 0 1 0 3
347 Incremental Printing of Symbolic Information 1 0 1 0 1 3
353 Optics: Image Projectors 0 2 1 0 0 3
358 Facsimile and Static Presentation Processing 1 0 2 0 0 3
386 Television Signal Processing for Dynamic Recording or Reproducing 1 2 0 0 0 3
452 Butchering 1 1 0 0 1 3
463 Amusement Devices: Games 0 0 1 1 1 3
472 Amusement Devices 0 0 0 3 0 3
492 Roll or Roller 0 1 1 0 1 3
585 Chemistry of Hydrocarbon Compounds 0 1 1 0 1 3
001 ** Classification Undetermined ** 0 1 0 1 0 2
059 Chain, Staple, and Horseshoe Making 1 1 0 0 0 2
157 Wheelwright Machines 0 0 0 0 2 2
171 Unearthing Plants or Buried Objects 0 0 0 0 2 2
173 Tool Driving or Impacting 1 0 0 0 1 2
203 Distillation: Processes, Separatory 0 1 1 0 0 2
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 1 0 1 2
412 Bookbinding: Process and Apparatus 0 0 0 1 1 2
476 Friction Gear Transmission Systems or Components 1 0 0 0 1 2
588 Hazardous or Toxic Waste Destruction or Containment 1 0 1 0 0 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 1 1 2
725 Interactive Video Distribution Systems 0 1 0 0 1 2
028 Textiles: Manufacturing 0 0 0 0 1 1
048 Gas: Heating and Illuminating 0 0 0 0 1 1
086 Ammunition and Explosive-Charge Making 0 0 0 0 1 1
109 Safes, Bank Protection, or a Related Device 1 0 0 0 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 1 0 0 0 0 1
125 Stone Working 0 0 0 1 0 1
127 Sugar, Starch, and Carbohydrates 0 1 0 0 0 1
150 Purses, Wallets, and Protective Covers 1 0 0 0 0 1
168 Farriery 0 1 0 0 0 1
178 Telegraphy 1 0 0 0 0 1
185 Motors: Spring, Weight, or Animal Powered 0 0 0 0 1 1
191 Electricity: Transmission To Vehicles 1 0 0 0 0 1
213 Railway Draft Appliances 0 0 1 0 0 1
226 Advancing Material of Indeterminate Length 1 0 0 0 0 1
238 Railways: Surface Track 0 0 1 0 0 1
246 Railway Switches and Signals 1 0 0 0 0 1
289 Knots and Knot Tying 0 1 0 0 0 1
298 Land Vehicles: Dumping 0 0 0 0 1 1
299 Mining or In Situ Disintegration of Hard Material 0 0 0 1 0 1
329 Demodulators 1 0 0 0 0 1
332 Modulators 1 0 0 0 0 1
352 Optics: Motion Pictures 0 0 0 1 0 1
373 Industrial Electric Heating Furnaces 1 0 0 0 0 1
453 Coin Handling 0 0 0 0 1 1
505 Superconductor Technology: Apparatus, Material, Process 1 0 0 0 0 1
ALL ALL CLASSES 3179 2838 3507 3681 3724 16929



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/

[Top] [Regional Listing] [TAF Home Page] [USPTO Home Page]

Last Modified: April 30, 2001