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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2008 - 2012 Utility Patent Grants
As Distributed 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

CANADA

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to a patent- see 'Explanation of Data' )
( some classes have been combined together under a single class identifier )

The following table displays technology classes and counts of utility patents classified in them; patents are distributed by year of patent grant.
Class Class Title 2008 2009 2010 2011 2012 Total
370 Multiplex Communications 202 227 297 288 338 1352
455 Telecommunications 114 121 176 258 400 1069
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 152 166 205 219 202 944
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 68 100 151 171 191 681
707 DP: Database and File Management or Data Structures (Data Processing) 58 80 142 145 134 559
345 Computer Graphics Processing and Selective Visual Display Systems 63 67 105 97 151 483
435 Chemistry: Molecular Biology and Microbiology 58 88 101 99 122 468
375 Pulse or Digital Communications 70 56 86 76 120 408
382 Image Analysis 68 62 70 95 112 407
532 Organic Compounds (includes Classes 532-570) 52 61 75 79 66 333
713 Support (Electrical Computers and Digital Processing Systems) 45 55 62 53 86 301
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 41 45 75 65 67 293
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 37 41 66 72 69 285
717 DP: Software Development, Installation, and Management (Data Processing) 30 40 57 61 95 283
340 Communications: Electrical 46 42 55 68 67 278
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 19 31 69 55 87 261
052 Static Structures (e.g., Buildings) 18 29 66 66 79 258
280 Land Vehicles 41 44 41 59 49 234
128 Surgery (includes Class 600) 28 30 50 57 62 227
250 Radiant Energy 55 37 52 39 41 224
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 39 37 32 51 61 220
726 Information Security 18 21 44 49 83 215
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 28 38 46 46 56 214
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 33 31 62 38 40 204
210 Liquid Purification or Separation 43 36 30 32 53 194
073 Measuring and Testing 41 37 34 32 43 187
702 DP: Measuring, Calibrating, or Testing (Data Processing) 34 29 34 43 44 184
060 Power Plants 28 36 48 32 38 182
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 56 41 38 27 18 180
714 Error Detection/Correction and Fault Detection/Recovery 26 34 42 36 37 175
379 Telephonic Communications 23 29 34 51 37 174
361 Electricity: Electrical Systems and Devices 19 35 37 44 37 172
324 Electricity: Measuring and Testing 24 37 32 22 37 152
711 Memory (Electrical Computers and Digital Processing Systems) 34 17 35 36 28 150
348 Television 23 24 28 30 44 149
365 Static Information Storage and Retrieval 8 23 34 46 35 146
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 20 28 25 30 42 145
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 16 17 23 32 55 143
398 Optical Communications 30 25 29 25 32 141
385 Optical Waveguides 37 38 28 15 18 136
359 Optical: Systems and Elements 34 25 38 23 15 135
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 15 18 28 34 39 134
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 8 17 35 33 41 134
362 Illumination 22 26 35 30 20 133
700 DP: Generic Control Systems or Specific Applications (Data Processing) 16 28 30 23 33 130
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 15 15 29 32 37 128
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 20 20 26 30 31 127
029 Metal Working 23 20 29 23 31 126
356 Optics: Measuring and Testing 22 28 25 30 20 125
343 Communications: Radio Wave Antennas 19 25 22 27 29 122
428 Stock Material or Miscellaneous Articles 15 18 26 29 30 118
380 Cryptography 13 16 28 26 34 117
341 Coded Data Generation or Conversion 29 20 17 30 20 116
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 21 15 27 16 33 112
296 Land Vehicles: Bodies and Tops 20 16 22 28 22 108
248 Supports (e.g., for holding articles, etc.) 13 23 21 27 23 107
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 35 14 16 19 23 107
606 Surgery (instruments) 15 11 19 29 29 103
320 Electricity: Battery or Capacitor Charging or Discharging 8 20 23 19 27 97
297 Chairs and Seats 22 32 18 11 13 96
123 Internal-Combustion Engines 19 21 14 22 19 95
381 Electrical Audio Signal Processing Systems and Devices 16 9 8 17 43 93
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 9 14 28 17 25 93
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 12 14 23 23 17 89
423 Chemistry of Inorganic Compounds 11 16 23 21 17 88
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 16 9 29 11 22 87
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 8 25 15 22 17 87
175 Boring or Penetrating the Earth 11 15 20 17 20 83
180 Motor Vehicles 17 12 18 17 18 82
706 DP: Artificial Intelligence (Data Processing) 7 13 19 23 20 82
222 Dispensing (apparatus and process) 8 13 18 18 24 81
427 Coating Processes 7 8 17 16 31 79
015 Brushing, Scrubbing, and General Cleaning 11 9 18 19 21 78
438 Semiconductor Device Manufacturing: Process 11 10 17 23 17 78
482 Exercise Devices 8 8 24 28 10 78
415 Rotary Kinetic Fluid Motors or Pumps 8 11 15 12 31 77
439 Electrical Connectors 19 13 14 17 14 77
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 13 7 8 24 24 76
106 Compositions: Coating or Plastic 12 17 12 14 17 72
310 Electrical Generator or Motor Structure 14 10 21 12 15 72
219 Electric Heating 14 15 18 9 15 71
307 Electrical Transmission or Interconnection Systems 11 14 16 13 16 70
111 Planting 13 14 18 13 11 69
326 Electronic Digital Logic Circuitry 9 14 18 16 12 69
414 Material or Article Handling 14 12 12 14 17 69
002 Apparel 10 9 17 13 19 68
172 Earth Working 6 11 17 14 19 67
315 Electric Lamp and Discharge Devices: Systems 9 12 12 13 19 65
473 Games Using Tangible Projectile 15 9 20 13 8 65
162 Paper Making and Fiber Liberation 16 7 10 19 12 64
463 Amusement Devices: Games 7 5 11 14 27 64
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 11 11 15 12 15 64
114 Ships 19 9 7 11 17 63
198 Conveyors: Power-Driven 11 6 14 21 11 63
174 Electricity: Conductors and Insulators 16 7 18 13 8 62
416 Fluid Reaction Surfaces (i.e., Impellers) 10 18 6 7 21 62
056 Harvesters 12 8 13 13 14 60
062 Refrigeration 14 11 14 9 10 58
436 Chemistry: Analytical and Immunological Testing 10 5 15 13 14 57
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 5 6 11 17 18 57
725 Interactive Video Distribution Systems 1 7 8 19 21 56
084 Music 6 10 16 10 12 54
119 Animal Husbandry 8 5 20 15 6 54
144 Woodworking 2 5 12 21 14 54
426 Food or Edible Material: Processes, Compositions, and Products 5 8 22 10 8 53
049 Movable or Removable Closures 7 11 12 10 12 52
137 Fluid Handling 5 11 15 7 13 51
220 Receptacles 2 9 13 10 17 51
330 Amplifiers 10 9 11 8 13 51
208 Mineral Oils: Processes and Products 4 12 8 14 12 50
285 Pipe Joints or Couplings 8 8 13 9 11 49
318 Electricity: Motive Power Systems 12 17 8 7 5 49
333 Wave Transmission Lines and Networks 8 7 12 7 15 49
604 Surgery (Medicators and Receptors) 6 4 11 17 11 49
405 Hydraulic and Earth Engineering 14 5 8 8 13 48
033 Geometrical Instruments 11 11 10 7 8 47
105 Railway Rolling Stock 7 9 13 11 7 47
351 Optics: Eye Examining, Vision Testing and Correcting 4 8 13 11 11 47
005 Beds 5 10 11 12 8 46
204 Chemistry: Electrical and Wave Energy 5 9 3 9 19 45
252 Compositions 9 5 5 10 16 45
358 Facsimile and Static Presentation Processing 3 8 4 13 17 45
417 Pumps 5 7 5 15 13 45
037 Excavating 2 12 17 8 5 44
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 4 9 10 12 9 44
404 Road Structure, Process, or Apparatus 5 13 5 11 9 43
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 3 10 9 7 14 43
347 Incremental Printing of Symbolic Information 2 5 11 5 19 42
206 Special Receptacle or Package 7 5 13 9 7 41
507 Earth Boring, Well Treating, and Oil Field Chemistry 3 5 5 20 8 41
095 Gas Separation: Processes 5 4 10 6 15 40
363 Electric Power Conversion Systems 6 7 9 9 9 40
607 Surgery: Light, Thermal, and Electrical Application 5 5 11 8 11 40
055 Gas Separation 7 9 9 7 7 39
241 Solid Material Comminution or Disintegration 6 10 4 9 10 39
273 Amusement Devices: Games 11 10 8 4 6 39
372 Coherent Light Generators 8 4 11 11 5 39
053 Package Making 9 7 11 5 6 38
074 Machine Element or Mechanism 8 9 9 7 5 38
244 Aeronautics and Astronautics 3 6 5 7 17 38
294 Handling: Hand and Hoist-Line Implements 5 7 5 5 16 38
367 Communications, Electrical: Acoustic Wave Systems and Devices 11 8 7 4 8 38
040 Card, Picture, or Sign Exhibiting 11 8 12 4 2 37
290 Prime-Mover Dynamo Plants 5 5 9 9 9 37
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 3 2 7 11 14 37
004 Baths, Closets, Sinks, and Spittoons 3 7 9 7 10 36
034 Drying and Gas or Vapor Contact with Solids 3 8 2 12 10 35
165 Heat Exchange 7 6 10 3 8 34
200 Electricity: Circuit Makers and Breakers 1 5 8 7 13 34
239 Fluid Sprinkling, Spraying, and Diffusing 6 8 4 8 8 34
083 Cutting 10 4 5 5 9 33
331 Oscillators 5 5 11 8 4 33
254 Implements or Apparatus for Applying Pushing or Pulling Force 7 7 5 5 8 32
081 Tools 4 4 6 7 10 31
209 Classifying, Separating, and Assorting Solids 5 5 8 7 6 31
160 Flexible or Portable Closure, Partition, or Panel 1 6 7 8 8 30
396 Photography 4 4 8 7 6 29
072 Metal Deforming 4 6 8 4 6 28
108 Horizontally Supported Planar Surfaces 1 3 10 9 5 28
126 Stoves and Furnaces 4 4 7 6 7 28
164 Metal Founding 10 3 7 2 6 28
242 Winding, Tensioning, or Guiding 6 4 4 10 4 28
323 Electricity: Power Supply or Regulation Systems 4 7 6 5 6 28
378 X-Ray or Gamma Ray Systems or Devices 5 3 4 11 5 28
708 Arithmetic Processing and Calculating (Electrical Computers) 6 6 5 6 5 28
271 Sheet Feeding or Delivering 7 3 7 6 4 27
181 Acoustics 6 3 7 7 3 26
292 Closure Fasteners 5 3 4 9 5 26
353 Optics: Image Projectors 5 1 8 6 6 26
047 Plant Husbandry 3 3 7 6 6 25
134 Cleaning and Liquid Contact with Solids 5 2 5 6 7 25
138 Pipes and Tubular Conduits 3 4 8 2 8 25
266 Metallurgical Apparatus 3 4 5 7 6 25
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 3 3 9 7 3 25
446 Amusement Devices: Toys 3 4 6 3 9 25
451 Abrading 8 6 2 5 4 25
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 4 4 5 11 25
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 3 2 4 5 10 24
211 Supports: Racks 5 1 6 6 6 24
601 Surgery: Kinesitherapy 4 4 5 7 4 24
182 Fire Escape, Ladder, or Scaffold 1 2 5 6 9 23
251 Valves and Valve Actuation 5 3 3 8 4 23
305 Wheel Substitutes for Land Vehicles 3 3 7 7 3 23
313 Electric Lamp and Discharge Devices 5 4 7 3 4 23
410 Freight Accommodation On Freight Carrier 5 5 1 7 5 23
440 Marine Propulsion 4 2 8 7 2 23
474 Endless Belt Power Transmission Systems or Components 1 3 4 8 7 23
096 Gas Separation: Apparatus 2 5 6 5 4 22
256 Fences 8 3 1 7 3 22
366 Agitating (e.g., of articles and materials) 4 2 3 8 4 21
418 Rotary Expansible Chamber Devices 2 2 6 7 4 21
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 4 7 6 3 21
014 Bridges 3 5 4 4 4 20
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 2 4 5 7 2 20
036 Boots, Shoes, and Leggings 4 4 3 2 7 20
043 Fishing, Trapping, and Vermin Destroying 2 3 4 6 5 20
102 Ammunition and Explosives 0 2 5 7 6 20
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 3 3 4 3 7 20
454 Ventilation 5 5 4 4 2 20
024 Buckles, Buttons, Clasps, Etc. 3 3 5 6 2 19
349 Liquid Crystal Cells, Elements and Systems 0 2 5 4 8 19
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 3 4 3 8 19
188 Brakes 5 2 5 1 5 18
228 Metal Fusion Bonding 4 0 3 5 6 18
312 Supports: Cabinet Structure 1 4 4 5 4 18
433 Dentistry 1 2 5 5 5 18
472 Amusement Devices 1 1 4 5 7 18
071 Chemistry: Fertilizers 4 2 6 1 4 17
224 Package and Article Carriers 2 1 4 6 4 17
434 Education and Demonstration 2 1 4 4 6 17
101 Printing 3 0 6 1 6 16
118 Coating Apparatus 2 4 4 2 4 16
135 Tent, Canopy, Umbrella, or Cane 3 3 2 7 1 16
236 Automatic Temperature and Humidity Regulation 1 2 3 3 7 16
299 Mining or In Situ Disintegration of Hard Material 3 0 4 7 2 16
384 Bearings 1 4 4 0 7 16
386 Motion Video Signal Processing for Recording or Reproducing 4 3 4 3 2 16
399 Electrophotography 3 2 0 7 4 16
441 Buoys, Rafts, and Aquatic Devices 5 4 2 2 3 16
099 Foods and Beverages: Apparatus 3 4 2 3 3 15
116 Signals and Indicators 4 3 1 6 1 15
368 Horology: Time Measuring Systems or Devices 3 3 2 2 5 15
030 Cutlery 2 1 2 5 4 14
070 Locks 3 1 1 5 4 14
100 Presses 4 5 2 1 2 14
148 Metal Treatment 1 2 5 2 4 14
192 Clutches and Power-Stop Control 1 4 1 5 3 14
585 Chemistry of Hydrocarbon Compounds 2 2 4 4 2 14
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 6 0 2 4 2 14
042 Firearms 2 2 2 2 5 13
124 Mechanical Guns and Projectors 2 0 5 2 4 13
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 2 2 2 4 13
374 Thermal Measuring and Testing 1 4 2 1 5 13
089 Ordnance 1 3 1 0 7 12
173 Tool Driving or Impacting 3 2 3 2 2 12
249 Static Molds 0 2 2 5 3 12
261 Gas and Liquid Contact Apparatus 1 3 2 1 5 12
392 Electric Resistance Heating Devices 4 3 1 2 2 12
044 Fuel and Related Compositions 2 4 3 2 0 11
136 Batteries: Thermoelectric and Photoelectric 1 2 1 4 2 10
139 Textiles: Weaving 4 2 0 2 2 10
184 Lubrication 2 1 1 0 6 10
277 Seal for a Joint or Juncture 2 1 3 2 2 10
322 Electricity: Single Generator Systems 1 3 1 4 1 10
401 Coating Implements with Material Supply 0 1 1 3 5 10
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 4 1 4 0 1 10
504 Plant Protecting and Regulating Compositions 1 1 2 2 4 10
122 Liquid Heaters and Vaporizers 1 3 3 1 1 9
149 Explosive and Thermic Compositions or Charges 1 0 2 3 3 9
212 Traversing Hoists 2 1 0 3 3 9
238 Railways: Surface Track 1 0 3 0 5 9
269 Work Holders 1 0 1 1 6 9
400 Typewriting Machines 2 1 2 3 1 9
403 Joints and Connections 2 0 3 3 1 9
602 Surgery: Splint, Brace, or Bandage 2 2 1 3 1 9
104 Railways 0 3 1 1 3 8
110 Furnaces 1 3 3 0 1 8
177 Weighing Scales 2 1 2 3 0 8
215 Bottles and Jars 0 1 1 3 3 8
283 Printed Matter 1 2 1 2 2 8
475 Planetary Gear Transmission Systems or Components 3 1 0 0 4 8
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 3 2 1 1 1 8
092 Expansible Chamber Devices 4 1 1 0 1 7
132 Toilet 1 1 1 1 3 7
227 Elongated-Member-Driving Apparatus 1 2 1 1 2 7
383 Flexible Bags 0 1 2 2 2 7
409 Gear Cutting, Milling, or Planing 1 1 3 2 0 7
431 Combustion 2 4 1 0 0 7
452 Butchering 1 1 1 3 1 7
127 Sugar, Starch, and Carbohydrates 0 0 0 3 3 6
221 Article Dispensing 1 2 0 2 1 6
270 Sheet-Material Associating 3 2 1 0 0 6
303 Fluid-Pressure and Analogous Brake Systems 2 1 1 1 1 6
332 Modulators 0 1 1 2 2 6
338 Electrical Resistors 0 1 1 1 3 6
408 Cutting by Use of Rotating Axially Moving Tool 1 1 2 2 0 6
450 Foundation Garments 3 0 0 0 3 6
460 Crop Threshing or Separating 1 1 2 1 1 6
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 1 1 2 1 5
091 Motors: Expansible Chamber Type 0 0 1 2 2 5
169 Fire Extinguishers 1 1 1 0 2 5
193 Conveyors, Chutes, Skids, Guides, and Ways 0 1 1 1 2 5
229 Envelopes, Wrappers, and Paperboard Boxes 2 0 2 1 0 5
232 Deposit and Collection Receptacles 3 0 1 1 0 5
237 Heating Systems 3 0 1 0 1 5
267 Spring Devices 1 1 1 0 2 5
293 Vehicle Fenders 1 1 1 2 0 5
301 Land Vehicles: Wheels and Axles 2 0 0 1 2 5
336 Inductor Devices 1 0 2 0 2 5
406 Conveyors: Fluid Current 2 2 0 1 0 5
407 Cutters, for Shaping 1 0 2 1 1 5
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 3 1 5
477 Interrelated Power Delivery Controls, Including Engine Control 0 1 1 0 3 5
588 Hazardous or Toxic Waste Destruction or Containment 0 2 2 0 1 5
027 Undertaking 0 2 0 0 2 4
048 Gas: Heating and Illuminating 0 1 0 1 2 4
057 Textiles: Spinning, Twisting, and Twining 1 0 0 1 2 4
082 Turning (e.g., for metal working) 1 0 0 1 2 4
087 Textiles: Braiding, Netting, and Lace Making 0 0 1 1 2 4
125 Stone Working 1 0 0 2 1 4
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 2 0 0 2 0 4
190 Trunks and Hand-Carried Luggage 1 1 2 0 0 4
202 Distillation: Apparatus 1 1 1 1 0 4
298 Land Vehicles: Dumping 1 1 0 0 2 4
369 Dynamic Information Storage or Retrieval 1 0 1 0 2 4
505 Superconductor Technology: Apparatus, Material, Process 2 0 0 1 1 4
054 Harness for Working Animal 1 0 0 1 1 3
059 Chain, Staple, and Horseshoe Making 0 2 0 1 0 3
065 Glass Manufacturing 0 1 0 0 2 3
086 Ammunition and Explosive-Charge Making 1 0 2 0 0 3
112 Sewing 0 1 0 0 2 3
131 Tobacco 0 1 1 0 1 3
168 Farriery 1 1 0 0 1 3
194 Check-Actuated Control Mechanisms 1 0 0 1 1 3
196 Mineral Oils: Apparatus 0 3 0 0 0 3
203 Distillation: Processes, Separatory 0 1 1 1 0 3
216 Etching a Substrate: Processes 3 0 0 0 0 3
223 Apparel Apparatus 0 1 1 0 1 3
225 Severing by Tearing or Breaking 0 2 0 0 1 3
352 Optics: Motion Pictures 0 1 0 1 1 3
494 Imperforate Bowl: Centrifugal Separators 0 1 0 0 2 3
501 Compositions: Ceramic 0 0 1 1 1 3
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 1 2 0 0 3
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 1 0 0 1 1 3
038 Textiles: Ironing or Smoothing 0 0 0 1 1 2
063 Jewelry 1 0 0 1 0 2
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 1 1 2
150 Purses, Wallets, and Protective Covers 0 1 0 0 1 2
185 Motors: Spring, Weight, or Animal Powered 0 1 1 0 0 2
213 Railway Draft Appliances 0 0 1 0 1 2
231 Whips and Whip Apparatus 1 0 0 1 0 2
360 Dynamic Magnetic Information Storage or Retrieval 0 0 0 2 0 2
412 Bookbinding: Process and Apparatus 0 0 2 0 0 2
432 Heating 0 0 1 0 1 2
483 Tool Changing 0 0 0 0 2 2
492 Roll or Roller 0 0 0 1 1 2
012 Boot and Shoe Making 0 0 1 0 0 1
019 Textiles: Fiber Preparation 0 0 1 0 0 1
023 Chemistry: Physical Processes 0 0 0 1 0 1
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 1 1
068 Textiles: Fluid Treating Apparatus 0 1 0 0 0 1
069 Leather Manufactures 0 0 1 0 0 1
076 Metal Tools and Implements, Making 0 0 0 1 0 1
140 Wireworking 0 1 0 0 0 1
152 Resilient Tires and Wheels 0 0 0 0 1 1
157 Wheelwright Machines 0 1 0 0 0 1
159 Concentrating Evaporators 0 0 0 0 1 1
191 Electricity: Transmission To Vehicles 0 0 0 1 0 1
201 Distillation: Processes, Thermolytic 0 0 0 1 0 1
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 1 0 0 1
226 Advancing Material of Indeterminate Length 0 0 0 1 0 1
246 Railway Switches and Signals 0 1 0 0 0 1
279 Chucks or Sockets 1 0 0 0 0 1
281 Books, Strips, and Leaves 0 0 0 0 1 1
291 Track Sanders 1 0 0 0 0 1
300 Brush, Broom, and Mop Making 0 0 1 0 0 1
329 Demodulators 0 0 1 0 0 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 1 0 0 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 0 1 1
388 Electricity: Motor Control Systems 1 0 0 0 0 1
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 0 0 0 1 1
420 Alloys or Metallic Compositions 0 0 0 0 1 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 1 0 0 0 0 1
449 Bee Culture (propagating, raising, caring for bees) 0 1 0 0 0 1
476 Friction Gear Transmission Systems or Components 0 0 1 0 0 1
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 1 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 0 0 1 1
ALL ALL CLASSES 3393 3655 4852 5014 5775 22689


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U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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