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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 2011 - 2015 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

CHINA, PEOPLE'S REPUBLIC OF

( 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 2011 2012 2013 2014 2015 Total
370 Multiplex Communications 270 388 522 834 808 2822
455 Telecommunications 129 260 294 380 381 1444
361 Electricity: Electrical Systems and Devices 203 229 270 216 188 1106
439 Electrical Connectors 254 168 170 136 139 867
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 49 62 117 188 404 820
345 Computer Graphics Processing and Selective Visual Display Systems 50 126 177 181 272 806
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 93 91 162 238 192 776
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 56 108 189 193 218 764
375 Pulse or Digital Communications 61 114 149 189 219 732
438 Semiconductor Device Manufacturing: Process 60 70 163 237 174 704
349 Liquid Crystal Cells, Elements and Systems 39 50 86 197 317 689
382 Image Analysis 75 120 149 135 169 648
707 DP: Database and File Management or Data Structures (Data Processing) 69 106 130 165 149 619
362 Illumination 77 89 105 143 149 563
532 Organic Compounds (includes Classes 532-570) 47 59 85 133 148 472
713 Support (Electrical Computers and Digital Processing Systems) 45 73 112 109 99 438
726 Information Security 19 44 86 113 141 403
348 Television 15 52 62 119 122 370
315 Electric Lamp and Discharge Devices: Systems 23 34 53 108 140 358
714 Error Detection/Correction and Fault Detection/Recovery 33 57 79 86 76 331
381 Electrical Audio Signal Processing Systems and Devices 30 75 61 73 76 315
398 Optical Communications 26 42 48 83 85 284
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 22 34 62 70 88 276
324 Electricity: Measuring and Testing 38 47 58 69 53 265
363 Electric Power Conversion Systems 25 39 55 55 83 257
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 30 41 68 58 53 250
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 31 43 45 71 51 241
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 19 62 55 30 53 219
435 Chemistry: Molecular Biology and Microbiology 15 26 51 65 60 217
711 Memory (Electrical Computers and Digital Processing Systems) 12 31 38 48 72 201
717 DP: Software Development, Installation, and Management (Data Processing) 15 27 50 41 66 199
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 24 27 40 46 45 182
323 Electricity: Power Supply or Regulation Systems 12 17 35 51 64 179
250 Radiant Energy 23 32 30 44 49 178
340 Communications: Electrical 14 34 45 45 40 178
379 Telephonic Communications 21 43 42 49 20 175
248 Supports (e.g., for holding articles, etc.) 29 49 48 21 27 174
428 Stock Material or Miscellaneous Articles 21 25 32 38 53 169
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 18 31 23 46 49 167
174 Electricity: Conductors and Insulators 21 20 35 35 54 165
320 Electricity: Battery or Capacitor Charging or Discharging 16 38 25 27 59 165
252 Compositions 15 20 20 41 64 160
359 Optical: Systems and Elements 19 24 30 41 46 160
073 Measuring and Testing 20 29 34 31 39 153
310 Electrical Generator or Motor Structure 20 27 30 32 26 135
200 Electricity: Circuit Makers and Breakers 14 35 38 26 21 134
128 Surgery (includes Class 600) 16 36 29 22 28 131
356 Optics: Measuring and Testing 16 12 24 31 46 129
313 Electric Lamp and Discharge Devices 32 33 28 20 11 124
029 Metal Working 12 27 23 29 28 119
318 Electricity: Motive Power Systems 10 30 31 18 29 118
380 Cryptography 6 26 25 34 25 116
423 Chemistry of Inorganic Compounds 15 17 29 25 30 116
165 Heat Exchange 22 34 29 10 19 114
385 Optical Waveguides 5 13 20 30 43 111
341 Coded Data Generation or Conversion 13 26 23 22 25 109
700 DP: Generic Control Systems or Specific Applications (Data Processing) 7 17 22 30 32 108
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 11 20 39 24 13 107
702 DP: Measuring, Calibrating, or Testing (Data Processing) 13 19 20 22 31 105
706 DP: Artificial Intelligence (Data Processing) 19 24 19 27 14 103
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 7 6 23 23 40 99
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 27 28 24 13 6 98
365 Static Information Storage and Retrieval 7 16 17 17 41 98
343 Communications: Radio Wave Antennas 8 10 11 28 39 96
427 Coating Processes 5 22 19 26 24 96
074 Machine Element or Mechanism 4 9 38 21 22 94
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 12 8 25 20 29 94
307 Electrical Transmission or Interconnection Systems 16 16 9 21 27 89
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 1 11 21 27 29 89
137 Fluid Handling 2 9 23 21 32 87
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 13 3 20 18 33 87
210 Liquid Purification or Separation 7 21 14 18 22 82
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 3 11 30 26 11 81
358 Facsimile and Static Presentation Processing 12 8 17 12 30 79
312 Supports: Cabinet Structure 7 15 26 19 9 76
219 Electric Heating 4 18 15 15 22 74
330 Amplifiers 11 11 12 18 22 74
280 Land Vehicles 11 8 12 18 24 73
052 Static Structures (e.g., Buildings) 7 8 14 25 18 72
725 Interactive Video Distribution Systems 4 6 10 28 24 72
239 Fluid Sprinkling, Spraying, and Diffusing 4 13 12 11 28 68
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 9 10 16 18 14 67
220 Receptacles 7 12 21 12 14 66
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 4 14 10 21 17 66
378 X-Ray or Gamma Ray Systems or Devices 13 11 11 11 19 65
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 11 16 9 16 12 64
415 Rotary Kinetic Fluid Motors or Pumps 9 11 17 12 14 63
206 Special Receptacle or Package 6 2 8 23 23 62
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 6 9 12 14 21 62
417 Pumps 7 13 8 18 15 61
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 3 8 5 20 18 54
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 6 11 13 11 13 54
297 Chairs and Seats 4 9 7 14 19 53
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 7 8 11 13 14 53
347 Incremental Printing of Symbolic Information 7 6 10 16 12 51
004 Baths, Closets, Sinks, and Spittoons 4 11 13 8 14 50
005 Beds 4 11 10 11 14 50
333 Wave Transmission Lines and Networks 6 9 9 10 15 49
360 Dynamic Magnetic Information Storage or Retrieval 6 13 6 11 13 49
445 Electric Lamp or Space Discharge Component or Device Manufacturing 13 8 6 9 13 49
241 Solid Material Comminution or Disintegration 6 11 11 10 9 47
331 Oscillators 9 8 6 10 14 47
436 Chemistry: Analytical and Immunological Testing 9 9 6 13 9 46
135 Tent, Canopy, Umbrella, or Cane 4 11 11 9 10 45
015 Brushing, Scrubbing, and General Cleaning 2 9 11 7 15 44
336 Inductor Devices 5 15 11 8 5 44
198 Conveyors: Power-Driven 1 5 7 10 20 43
451 Abrading 2 4 5 17 15 43
033 Geometrical Instruments 12 7 4 8 11 42
216 Etching a Substrate: Processes 4 2 9 12 14 41
251 Valves and Valve Actuation 1 5 9 10 16 41
446 Amusement Devices: Toys 10 16 2 7 6 41
269 Work Holders 5 6 10 6 13 40
180 Motor Vehicles 3 15 7 7 7 39
040 Card, Picture, or Sign Exhibiting 6 10 8 8 6 38
204 Chemistry: Electrical and Wave Energy 0 4 6 17 11 38
290 Prime-Mover Dynamo Plants 3 8 6 10 11 38
372 Coherent Light Generators 5 4 1 10 17 37
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 8 10 9 6 36
475 Planetary Gear Transmission Systems or Components 4 5 9 8 10 36
353 Optics: Image Projectors 9 7 11 3 5 35
399 Electrophotography 1 2 4 14 14 35
426 Food or Edible Material: Processes, Compositions, and Products 2 8 5 6 14 35
708 Arithmetic Processing and Calculating (Electrical Computers) 3 6 8 10 8 35
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 4 9 9 8 5 35
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 3 6 10 9 6 34
123 Internal-Combustion Engines 4 5 4 4 16 33
386 Motion Video Signal Processing for Recording or Reproducing 2 3 7 11 10 33
606 Surgery (instruments) 3 5 7 10 8 33
030 Cutlery 7 5 4 8 8 32
222 Dispensing (apparatus and process) 3 4 7 7 11 32
062 Refrigeration 2 6 7 7 9 31
099 Foods and Beverages: Apparatus 5 4 6 12 4 31
374 Thermal Measuring and Testing 2 11 7 8 3 31
396 Photography 7 4 7 6 7 31
060 Power Plants 6 3 7 6 8 30
108 Horizontally Supported Planar Surfaces 6 8 3 8 5 30
136 Batteries: Thermoelectric and Photoelectric 1 3 8 6 12 30
326 Electronic Digital Logic Circuitry 8 2 6 8 6 30
585 Chemistry of Hydrocarbon Compounds 4 7 5 8 6 30
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 3 3 7 12 4 29
292 Closure Fasteners 5 9 12 2 1 29
416 Fluid Reaction Surfaces (i.e., Impellers) 7 3 5 6 8 29
072 Metal Deforming 5 7 7 3 6 28
148 Metal Treatment 4 7 5 8 4 28
414 Material or Article Handling 2 4 3 6 13 28
355 Photocopying 3 3 2 8 11 27
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 1 5 4 3 14 27
482 Exercise Devices 5 2 7 7 6 27
604 Surgery (Medicators and Receptors) 6 6 6 4 5 27
607 Surgery: Light, Thermal, and Electrical Application 5 3 5 7 7 27
070 Locks 3 9 3 5 6 26
131 Tobacco 1 0 3 5 17 26
208 Mineral Oils: Processes and Products 1 1 11 5 8 26
261 Gas and Liquid Contact Apparatus 4 5 3 4 10 26
294 Handling: Hand and Hoist-Line Implements 1 6 6 5 8 26
720 Dynamic Optical Information Storage or Retrieval 3 7 9 4 3 26
126 Stoves and Furnaces 3 2 6 8 6 25
254 Implements or Apparatus for Applying Pushing or Pulling Force 2 5 8 6 4 25
271 Sheet Feeding or Delivering 0 1 7 8 9 25
164 Metal Founding 5 3 3 7 6 24
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 2 7 4 4 7 24
211 Supports: Racks 4 5 4 3 8 24
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 5 4 3 8 4 24
403 Joints and Connections 2 7 5 4 6 24
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 1 5 5 5 8 24
096 Gas Separation: Apparatus 4 5 4 6 4 23
227 Elongated-Member-Driving Apparatus 4 3 10 4 2 23
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 3 3 8 7 2 23
083 Cutting 2 4 1 8 7 22
106 Compositions: Coating or Plastic 4 0 4 4 10 22
134 Cleaning and Liquid Contact with Solids 3 3 1 8 7 22
244 Aeronautics and Astronautics 1 2 2 3 14 22
296 Land Vehicles: Bodies and Tops 3 7 7 3 2 22
405 Hydraulic and Earth Engineering 0 4 3 5 10 22
118 Coating Apparatus 1 5 5 7 3 21
162 Paper Making and Fiber Liberation 2 3 4 9 3 21
173 Tool Driving or Impacting 4 9 2 2 4 21
188 Brakes 2 6 5 2 6 21
192 Clutches and Power-Stop Control 1 5 5 5 5 21
279 Chucks or Sockets 3 3 1 4 10 21
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 3 5 4 3 6 21
369 Dynamic Information Storage or Retrieval 3 4 6 6 0 19
601 Surgery: Kinesitherapy 6 7 3 2 1 19
367 Communications, Electrical: Acoustic Wave Systems and Devices 3 4 4 1 6 18
384 Bearings 0 4 5 4 5 18
473 Games Using Tangible Projectile 1 3 3 4 7 18
095 Gas Separation: Processes 7 1 4 2 3 17
119 Animal Husbandry 2 0 8 4 3 17
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 2 0 3 5 7 17
351 Optics: Eye Examining, Vision Testing and Correcting 4 5 1 5 2 17
400 Typewriting Machines 4 5 3 5 0 17
501 Compositions: Ceramic 1 3 3 5 5 17
024 Buckles, Buttons, Clasps, Etc. 3 6 4 0 3 16
055 Gas Separation 3 5 1 1 6 16
065 Glass Manufacturing 1 4 0 2 9 16
242 Winding, Tensioning, or Guiding 2 0 1 3 10 16
368 Horology: Time Measuring Systems or Devices 4 2 4 4 2 16
401 Coating Implements with Material Supply 1 4 7 2 2 16
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2 3 4 1 6 16
034 Drying and Gas or Vapor Contact with Solids 0 3 2 5 5 15
053 Package Making 2 1 6 1 5 15
081 Tools 4 1 2 1 7 15
181 Acoustics 2 3 3 2 5 15
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 3 4 1 3 3 14
228 Metal Fusion Bonding 2 2 5 5 0 14
366 Agitating (e.g., of articles and materials) 1 3 5 2 3 14
105 Railway Rolling Stock 0 1 5 3 4 13
209 Classifying, Separating, and Assorting Solids 1 0 2 6 4 13
392 Electric Resistance Heating Devices 2 3 2 1 5 13
418 Rotary Expansible Chamber Devices 4 0 3 3 3 13
463 Amusement Devices: Games 1 1 4 3 4 13
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 4 4 4 1 13
049 Movable or Removable Closures 0 1 3 6 2 12
182 Fire Escape, Ladder, or Scaffold 3 0 3 3 3 12
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 2 1 2 3 4 12
266 Metallurgical Apparatus 2 3 1 1 5 12
505 Superconductor Technology: Apparatus, Material, Process 0 1 2 3 6 12
047 Plant Husbandry 1 1 1 1 7 11
084 Music 3 0 2 3 3 11
110 Furnaces 3 1 2 3 2 11
160 Flexible or Portable Closure, Partition, or Panel 1 0 5 2 3 11
338 Electrical Resistors 1 3 3 2 2 11
410 Freight Accommodation On Freight Carrier 4 0 2 4 1 11
071 Chemistry: Fertilizers 1 3 0 3 3 10
175 Boring or Penetrating the Earth 3 0 1 1 5 10
202 Distillation: Apparatus 0 0 1 8 1 10
224 Package and Article Carriers 0 4 1 1 4 10
236 Automatic Temperature and Humidity Regulation 3 1 1 2 3 10
285 Pipe Joints or Couplings 1 2 1 1 5 10
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 3 0 1 3 3 10
114 Ships 0 2 0 3 4 9
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 3 3 0 3 9
132 Toilet 1 1 2 0 5 9
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 0 1 1 4 3 9
177 Weighing Scales 1 1 2 3 2 9
267 Spring Devices 0 0 3 2 4 9
472 Amusement Devices 1 2 1 2 3 9
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 0 0 5 4 9
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 2 0 1 2 4 9
048 Gas: Heating and Illuminating 3 1 0 2 2 8
101 Printing 2 1 1 2 2 8
138 Pipes and Tubular Conduits 0 1 1 4 2 8
322 Electricity: Single Generator Systems 1 0 2 3 2 8
420 Alloys or Metallic Compositions 1 1 2 1 3 8
454 Ventilation 0 0 0 4 4 8
002 Apparel 1 2 0 3 1 7
036 Boots, Shoes, and Leggings 0 0 2 4 1 7
038 Textiles: Ironing or Smoothing 0 4 0 1 2 7
057 Textiles: Spinning, Twisting, and Twining 1 1 2 1 2 7
122 Liquid Heaters and Vaporizers 2 4 0 0 1 7
139 Textiles: Weaving 0 0 1 2 4 7
194 Check-Actuated Control Mechanisms 0 0 2 3 2 7
203 Distillation: Processes, Separatory 3 0 1 3 0 7
212 Traversing Hoists 1 0 0 5 1 7
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 5 0 0 2 7
301 Land Vehicles: Wheels and Axles 2 0 0 3 2 7
434 Education and Demonstration 0 1 3 3 0 7
477 Interrelated Power Delivery Controls, Including Engine Control 1 1 2 2 1 7
504 Plant Protecting and Regulating Compositions 0 0 2 3 2 7
014 Bridges 1 1 2 1 1 6
042 Firearms 1 0 1 2 2 6
051 Abrasive Tool Making Process, Material, or Composition 2 1 1 0 2 6
056 Harvesters 1 0 0 0 5 6
329 Demodulators 2 1 1 1 1 6
404 Road Structure, Process, or Apparatus 0 1 1 2 2 6
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 0 3 1 1 6
512 Perfume Compositions 0 2 1 3 0 6
044 Fuel and Related Compositions 0 1 3 0 1 5
092 Expansible Chamber Devices 0 0 0 1 4 5
102 Ammunition and Explosives 0 3 1 0 1 5
104 Railways 2 0 0 2 1 5
169 Fire Extinguishers 0 0 1 3 1 5
213 Railway Draft Appliances 0 2 2 1 0 5
215 Bottles and Jars 1 1 1 1 1 5
238 Railways: Surface Track 1 0 1 1 2 5
249 Static Molds 1 0 2 0 2 5
277 Seal for a Joint or Juncture 0 0 0 2 3 5
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 1 1 3 5
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 1 4 5
408 Cutting by Use of Rotating Axially Moving Tool 1 1 0 2 1 5
409 Gear Cutting, Milling, or Planing 0 0 1 2 2 5
507 Earth Boring, Well Treating, and Oil Field Chemistry 3 0 0 2 0 5
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 2 0 2 1 5
089 Ordnance 0 0 0 2 2 4
100 Presses 0 0 3 0 1 4
124 Mechanical Guns and Projectors 0 0 0 1 3 4
221 Article Dispensing 0 0 0 0 4 4
273 Amusement Devices: Games 1 1 1 1 0 4
299 Mining or In Situ Disintegration of Hard Material 0 0 0 2 2 4
373 Industrial Electric Heating Furnaces 0 0 0 2 2 4
419 Powder Metallurgy Processes 1 0 0 0 3 4
432 Heating 0 0 0 1 3 4
433 Dentistry 0 2 0 1 1 4
043 Fishing, Trapping, and Vermin Destroying 0 1 0 1 1 3
068 Textiles: Fluid Treating Apparatus 1 0 0 1 1 3
125 Stone Working 1 0 1 1 0 3
127 Sugar, Starch, and Carbohydrates 1 0 1 0 1 3
144 Woodworking 0 2 1 0 0 3
178 Telegraphy 0 0 2 0 1 3
184 Lubrication 0 0 2 0 1 3
190 Trunks and Hand-Carried Luggage 0 0 2 1 0 3
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 1 2 0 3
229 Envelopes, Wrappers, and Paperboard Boxes 0 2 0 1 0 3
256 Fences 0 0 0 2 1 3
270 Sheet-Material Associating 0 1 2 0 0 3
383 Flexible Bags 0 1 1 0 1 3
388 Electricity: Motor Control Systems 2 1 0 0 0 3
407 Cutters, for Shaping 1 0 0 1 1 3
431 Combustion 0 0 0 1 2 3
441 Buoys, Rafts, and Aquatic Devices 0 2 1 0 0 3
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 2 1 0 0 3
450 Foundation Garments 0 1 0 1 1 3
474 Endless Belt Power Transmission Systems or Components 0 0 1 1 1 3
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 1 1 1 0 3
023 Chemistry: Physical Processes 1 0 1 0 0 2
082 Turning (e.g., for metal working) 2 0 0 0 0 2
112 Sewing 1 0 0 0 1 2
152 Resilient Tires and Wheels 0 1 0 1 0 2
172 Earth Working 0 0 0 2 0 2
191 Electricity: Transmission To Vehicles 0 0 1 0 1 2
223 Apparel Apparatus 0 1 1 0 0 2
232 Deposit and Collection Receptacles 0 0 0 2 0 2
483 Tool Changing 0 0 0 1 1 2
494 Imperforate Bowl: Centrifugal Separators 0 2 0 0 0 2
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 0 2 2
007 Compound Hand Tools 0 0 0 0 1 1
019 Textiles: Fiber Preparation 0 0 0 1 0 1
028 Textiles: Manufacturing 0 0 1 0 0 1
037 Excavating 0 0 0 1 0 1
063 Jewelry 1 0 0 0 0 1
109 Safes, Bank Protection, or a Related Device 0 1 0 0 0 1
116 Signals and Indicators 0 1 0 0 0 1
157 Wheelwright Machines 0 0 1 0 0 1
159 Concentrating Evaporators 0 0 1 0 0 1
196 Mineral Oils: Apparatus 0 0 1 0 0 1
226 Advancing Material of Indeterminate Length 1 0 0 0 0 1
237 Heating Systems 0 0 0 1 0 1
246 Railway Switches and Signals 0 0 0 0 1 1
260 Chemistry of Carbon Compounds 0 0 0 0 1 1
300 Brush, Broom, and Mop Making 1 0 0 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 1 1
332 Modulators 0 0 0 1 0 1
406 Conveyors: Fluid Current 0 0 0 0 1 1
412 Bookbinding: Process and Apparatus 0 1 0 0 0 1
413 Sheet Metal Container Making 0 0 0 0 1 1
452 Butchering 0 0 0 1 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 1 0 0 0 1
ALL ALL CLASSES 3174 4637 5928 7236 8116 29091



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