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

Patenting In U.S. Metropolitan and Micropolitan Areas
Breakout By Technology Class

Count of 2000 - 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

Washington-Arlington-Alexandria, DC-VA-MD-WV

( Metropolitan Statistical Area )

( 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 )
( patent counts may not sum exactly due to rounding - see the Explanation of Data )
( regional areas are based on U.S. Core Based Statistical Area (CBSA) )

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 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 124 133 111 152 99 91 116 92 95 109 128 126 150 174 203 230 2132
435 Chemistry: Molecular Biology and Microbiology 111 114 165 123 125 114 115 71 63 68 94 76 70 78 100 65 1553
370 Multiplex Communications 32 30 38 38 41 48 58 50 56 65 96 124 132 141 150 197 1296
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 34 20 19 22 13 19 54 30 54 71 150 139 130 153 107 45 1061
455 Telecommunications 29 38 24 27 23 36 54 53 49 56 80 112 128 115 108 114 1046
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 22 19 24 19 20 17 38 55 54 54 91 87 112 109 147 117 986
707 DP: Database and File Management or Data Structures (Data Processing) 6 8 18 19 31 18 30 31 32 30 56 55 65 67 62 115 644
726 Information Security 4 3 5 1 4 6 12 16 14 24 33 39 50 79 106 120 517
340 Communications: Electrical 19 20 13 12 16 28 43 24 34 42 25 29 43 44 45 37 475
382 Image Analysis 8 13 9 20 14 11 22 23 40 37 52 30 35 53 45 53 466
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 19 15 23 33 18 26 49 58 54 31 27 26 16 21 19 15 450
532 Organic Compounds (includes Classes 532-570) 11 16 23 20 39 17 24 23 26 26 30 36 41 27 33 23 416
375 Pulse or Digital Communications 16 16 20 18 23 25 20 28 32 25 16 21 25 30 38 35 389
379 Telephonic Communications 23 27 24 22 35 24 30 23 13 15 16 20 19 23 31 23 369
713 Support (Electrical Computers and Digital Processing Systems) 4 7 6 9 11 18 42 18 20 26 24 28 29 34 44 41 361
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 22 18 26 18 20 13 21 22 20 21 26 35 28 15 13 11 329
250 Radiant Energy 17 14 15 16 15 14 19 12 21 19 20 17 22 22 30 21 295
128 Surgery (includes Class 600) 22 20 17 24 12 18 15 9 10 11 16 15 24 26 31 19 291
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 11 9 4 8 8 8 15 13 16 16 28 18 23 28 36 42 284
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 7 8 11 13 11 9 11 9 10 15 8 19 27 34 44 35 271
356 Optics: Measuring and Testing 20 6 9 14 9 17 6 16 16 12 16 27 18 27 17 13 243
702 DP: Measuring, Calibrating, or Testing (Data Processing) 9 9 7 13 18 13 20 7 17 11 18 22 20 21 17 11 234
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 9 12 17 12 21 5 9 8 13 11 14 14 17 18 22 20 223
714 Error Detection/Correction and Fault Detection/Recovery 5 11 7 8 8 13 9 9 14 14 16 17 19 25 22 15 213
345 Computer Graphics Processing and Selective Visual Display Systems 8 10 9 5 12 9 10 17 7 13 8 11 11 19 23 28 201
438 Semiconductor Device Manufacturing: Process 13 8 10 18 13 9 6 10 10 9 22 19 10 14 16 10 197
706 DP: Artificial Intelligence (Data Processing) 3 5 4 8 4 3 8 6 12 12 15 21 27 27 16 18 189
385 Optical Waveguides 11 17 14 16 17 17 13 19 11 6 11 6 5 6 4 12 186
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 7 4 9 14 9 7 14 15 12 12 9 10 10 24 7 17 180
606 Surgery (instruments) 8 2 8 6 7 8 7 4 4 5 5 11 23 25 25 30 178
725 Interactive Video Distribution Systems 3 1 5 3 4 3 4 10 6 12 11 10 17 20 35 32 176
436 Chemistry: Analytical and Immunological Testing 7 10 17 9 17 5 9 5 11 8 23 13 12 13 8 7 175
348 Television 10 15 16 5 7 2 4 4 6 7 6 11 8 19 15 39 175
073 Measuring and Testing 12 21 16 17 11 6 14 11 6 6 5 7 10 8 9 11 171
324 Electricity: Measuring and Testing 9 11 8 11 14 11 19 11 6 4 8 14 11 4 13 8 164
359 Optical: Systems and Elements 10 11 17 8 9 9 11 12 5 5 10 7 13 10 12 8 157
102 Ammunition and Explosives 6 14 13 9 5 7 5 2 7 11 12 11 12 16 11 12 153
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 6 10 6 7 7 5 4 6 8 5 13 15 13 16 13 13 148
380 Cryptography 15 11 8 8 3 10 16 8 3 6 7 5 10 16 10 8 144
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 5 11 8 9 10 5 5 8 10 8 12 11 11 9 6 15 144
244 Aeronautics and Astronautics 12 9 14 8 9 9 6 9 2 6 3 7 10 14 9 6 134
700 DP: Generic Control Systems or Specific Applications (Data Processing) 6 5 7 9 5 9 4 3 7 6 10 8 10 10 15 18 133
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 2 6 9 3 6 3 14 13 11 4 8 8 12 8 10 11 128
428 Stock Material or Miscellaneous Articles 6 13 9 8 3 7 3 8 6 7 9 10 8 3 10 11 122
210 Liquid Purification or Separation 2 13 7 6 11 9 9 7 7 4 7 6 8 7 6 5 114
362 Illumination 3 6 6 5 4 3 9 4 5 9 5 10 18 10 8 7 112
398 Optical Communications 4 4 4 3 3 3 10 6 10 6 7 13 7 10 8 6 106
361 Electricity: Electrical Systems and Devices 1 4 7 5 2 8 2 3 5 9 10 5 8 10 9 18 106
434 Education and Demonstration 7 6 5 7 14 9 3 3 5 2 6 2 5 13 12 6 105
114 Ships 6 8 8 13 5 4 5 1 4 3 3 6 8 8 10 8 100
052 Static Structures (e.g., Buildings) 9 15 7 2 4 4 2 2 2 4 8 5 5 15 9 6 99
089 Ordnance 1 7 8 5 2 3 3 1 6 5 12 9 10 7 10 10 99
482 Exercise Devices 10 11 8 6 3 1 4 4 3 2 8 8 2 5 9 13 97
604 Surgery (Medicators and Receptors) 7 7 5 11 4 6 3 3 2 5 8 8 5 7 8 3 92
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 2 2 2 6 9 9 7 6 6 5 6 6 4 11 10 91
365 Static Information Storage and Retrieval 5 17 6 3 5 11 7 7 5 2 1 9 4 2 1 3 88
343 Communications: Radio Wave Antennas 4 5 12 4 1 7 5 3 7 5 8 7 2 5 5 6 88
060 Power Plants 4 6 10 3 10 8 6 5 2 7 6 1 6 4 4 5 87
280 Land Vehicles 9 4 8 3 0 2 8 4 7 4 6 4 6 8 5 9 87
717 DP: Software Development, Installation, and Management (Data Processing) 5 0 2 1 3 2 4 2 5 5 5 10 8 11 12 11 87
002 Apparel 4 8 7 2 5 2 6 4 5 7 9 6 5 4 6 5 86
310 Electrical Generator or Motor Structure 8 6 6 2 15 10 4 2 2 4 8 7 4 3 3 1 85
473 Games Using Tangible Projectile 9 1 4 6 4 5 3 2 3 3 9 7 7 6 6 8 83
315 Electric Lamp and Discharge Devices: Systems 5 7 7 9 3 4 1 2 0 1 0 2 4 6 11 15 78
427 Coating Processes 4 5 3 8 10 2 5 2 3 6 7 3 7 3 5 4 77
042 Firearms 1 5 5 3 2 0 3 3 2 2 5 6 7 12 11 9 76
204 Chemistry: Electrical and Wave Energy 5 4 12 5 6 5 4 2 1 5 3 4 4 6 4 4 74
423 Chemistry of Inorganic Compounds 2 2 3 4 0 2 2 5 1 3 14 2 5 11 10 7 73
248 Supports (e.g., for holding articles, etc.) 8 6 6 4 5 4 3 6 4 2 4 4 4 1 4 8 73
372 Coherent Light Generators 4 4 3 4 3 5 3 3 2 3 3 6 5 7 7 4 66
119 Animal Husbandry 3 3 3 4 3 5 4 2 2 2 5 5 5 8 5 6 65
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 4 2 2 3 1 1 2 1 2 6 7 3 10 5 9 7 65
149 Explosive and Thermic Compositions or Charges 10 6 7 4 5 3 2 1 1 2 6 4 5 3 3 1 63
273 Amusement Devices: Games 6 7 6 3 1 2 2 3 2 2 6 3 5 8 3 3 62
307 Electrical Transmission or Interconnection Systems 6 3 3 3 2 1 0 2 3 2 3 7 11 6 4 5 61
220 Receptacles 4 5 3 2 1 4 2 2 2 1 4 0 6 5 9 9 59
463 Amusement Devices: Games 5 1 3 1 0 1 1 2 3 4 8 8 4 9 4 4 58
033 Geometrical Instruments 5 6 3 3 3 2 3 10 4 4 5 2 1 2 1 3 57
297 Chairs and Seats 3 2 3 5 2 3 5 2 0 4 5 1 6 2 6 6 55
607 Surgery: Light, Thermal, and Electrical Application 0 1 1 3 4 5 1 6 3 3 4 4 6 4 4 4 53
005 Beds 5 5 3 2 5 1 2 3 2 4 4 1 1 4 7 4 53
252 Compositions 4 5 4 2 2 3 2 2 1 1 5 1 4 3 6 7 53
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 4 2 1 2 2 6 2 1 5 6 6 2 3 4 5 52
036 Boots, Shoes, and Leggings 3 3 3 6 9 4 5 6 2 1 0 2 0 3 3 1 51
165 Heat Exchange 0 3 4 1 4 4 8 6 1 2 3 1 2 3 0 8 50
358 Facsimile and Static Presentation Processing 1 1 2 2 3 1 3 4 3 3 1 6 4 2 9 4 49
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 3 2 1 7 2 3 1 3 2 4 2 0 4 6 6 3 49
029 Metal Working 3 9 2 2 4 2 3 3 1 2 2 6 2 1 0 7 49
367 Communications, Electrical: Acoustic Wave Systems and Devices 5 2 2 4 3 1 0 7 3 2 4 6 5 1 0 3 49
333 Wave Transmission Lines and Networks 2 0 3 4 1 2 4 6 4 5 4 3 2 1 3 4 48
206 Special Receptacle or Package 6 3 4 1 2 4 1 0 4 4 3 5 1 3 1 5 47
381 Electrical Audio Signal Processing Systems and Devices 3 1 4 2 4 3 4 0 4 1 3 3 3 2 3 7 47
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 2 1 4 1 5 6 2 4 2 4 0 2 7 6 47
585 Chemistry of Hydrocarbon Compounds 0 1 0 1 1 2 3 2 1 3 10 5 7 5 3 3 47
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 0 1 3 0 0 1 3 2 1 0 0 2 6 13 14 46
378 X-Ray or Gamma Ray Systems or Devices 2 8 3 1 2 3 2 3 4 1 5 4 1 1 3 3 46
056 Harvesters 5 6 7 6 3 5 0 2 3 1 3 1 0 0 0 1 43
208 Mineral Oils: Processes and Products 4 0 0 4 0 0 0 2 4 1 4 1 3 8 7 5 43
433 Dentistry 1 7 4 1 1 2 2 3 4 1 3 1 3 3 4 2 42
180 Motor Vehicles 2 3 5 2 1 1 1 3 3 8 2 4 2 1 3 1 42
313 Electric Lamp and Discharge Devices 6 6 3 3 3 1 1 4 1 0 2 1 3 3 4 1 42
062 Refrigeration 6 2 2 1 3 3 4 1 1 5 1 3 0 0 2 6 40
296 Land Vehicles: Bodies and Tops 2 0 1 2 4 1 6 4 2 0 0 3 4 4 4 3 40
084 Music 3 2 0 1 1 2 0 1 2 5 2 2 3 5 6 4 40
004 Baths, Closets, Sinks, and Spittoons 0 4 5 5 4 3 4 0 3 0 2 5 2 2 0 1 40
222 Dispensing (apparatus and process) 3 5 2 4 3 1 3 1 1 1 2 1 4 2 3 4 40
134 Cleaning and Liquid Contact with Solids 4 2 1 3 5 2 1 1 2 2 4 2 1 4 3 3 40
040 Card, Picture, or Sign Exhibiting 1 0 1 3 2 1 3 2 1 3 0 5 8 2 5 1 38
405 Hydraulic and Earth Engineering 4 2 3 3 3 1 7 2 0 1 5 1 0 1 2 1 36
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 1 3 0 2 2 1 0 0 1 1 1 2 3 3 3 13 36
239 Fluid Sprinkling, Spraying, and Diffusing 4 4 4 1 3 3 3 0 2 0 1 1 1 1 2 5 36
137 Fluid Handling 3 2 3 1 2 3 1 1 0 0 0 0 2 5 6 6 35
219 Electric Heating 3 4 2 3 4 2 2 2 0 3 0 2 3 2 2 1 35
426 Food or Edible Material: Processes, Compositions, and Products 10 9 6 3 1 0 1 0 0 0 0 1 1 0 0 2 35
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 1 1 1 2 2 0 2 1 5 2 2 1 4 6 4 34
351 Optics: Eye Examining, Vision Testing and Correcting 1 1 0 4 2 0 1 1 2 4 3 2 4 1 3 4 34
410 Freight Accommodation On Freight Carrier 1 3 0 2 2 3 3 2 2 1 3 0 2 7 1 1 33
123 Internal-Combustion Engines 2 5 2 1 1 1 1 1 3 0 1 1 5 2 6 1 33
209 Classifying, Separating, and Assorting Solids 1 0 2 0 1 2 3 3 6 2 2 0 2 2 3 3 33
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 3 1 2 3 2 0 0 1 0 1 0 6 2 7 3 32
118 Coating Apparatus 3 0 5 3 5 0 2 4 3 2 2 1 0 1 0 1 32
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 1 3 0 3 1 1 5 3 3 1 1 3 1 1 2 2 31
211 Supports: Racks 1 9 1 4 3 1 0 1 0 1 2 2 0 2 1 2 30
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 2 1 3 1 5 2 2 1 0 0 1 2 2 3 1 3 30
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 1 0 1 1 4 1 0 2 4 2 4 4 0 1 2 2 29
015 Brushing, Scrubbing, and General Cleaning 0 4 1 0 3 1 2 2 2 3 6 3 0 0 1 1 29
095 Gas Separation: Processes 0 0 2 0 3 3 1 0 0 2 4 3 3 1 3 4 29
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 4 2 1 2 0 1 1 1 1 2 2 4 2 3 1 1 28
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 5 2 2 6 3 2 1 1 0 2 0 0 1 2 0 1 28
446 Amusement Devices: Toys 1 2 6 5 3 1 0 0 1 0 3 1 1 0 0 3 27
135 Tent, Canopy, Umbrella, or Cane 5 3 1 2 3 2 0 1 1 4 3 2 0 0 0 0 27
326 Electronic Digital Logic Circuitry 1 2 1 1 2 2 1 1 6 3 1 2 1 0 0 3 27
440 Marine Propulsion 1 3 4 3 1 4 3 0 2 1 2 2 1 0 0 0 27
318 Electricity: Motive Power Systems 2 0 1 3 6 5 0 4 2 1 1 1 0 0 1 0 27
290 Prime-Mover Dynamo Plants 0 0 0 0 0 0 0 2 3 1 3 4 4 3 4 3 27
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 0 0 2 0 3 0 2 2 1 3 4 3 3 3 27
198 Conveyors: Power-Driven 2 2 2 1 0 0 0 1 1 3 2 3 2 2 2 4 27
024 Buckles, Buttons, Clasps, Etc. 0 6 4 3 0 0 1 1 0 0 2 0 3 2 2 2 26
181 Acoustics 3 0 2 2 1 0 1 1 3 0 1 1 6 3 1 0 25
182 Fire Escape, Ladder, or Scaffold 4 1 0 1 2 2 1 0 0 0 1 3 3 2 4 1 25
708 Arithmetic Processing and Calculating (Electrical Computers) 2 1 0 1 1 3 2 3 0 1 0 3 0 5 1 2 25
374 Thermal Measuring and Testing 2 2 1 0 1 3 0 0 3 2 0 0 3 3 2 3 25
174 Electricity: Conductors and Insulators 4 2 4 1 3 1 2 0 0 0 2 1 0 2 1 2 25
224 Package and Article Carriers 4 4 2 1 1 0 0 2 1 0 1 0 0 2 3 3 25
330 Amplifiers 2 1 1 2 4 1 2 1 5 0 1 0 0 2 1 1 24
294 Handling: Hand and Hoist-Line Implements 1 0 3 2 1 0 0 0 1 3 1 1 2 7 1 1 24
439 Electrical Connectors 1 4 2 0 0 0 3 1 1 3 0 2 1 0 1 4 23
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 0 2 0 4 1 2 1 2 0 1 1 2 1 3 2 23
124 Mechanical Guns and Projectors 3 0 0 2 1 0 1 0 0 0 1 2 3 3 2 4 23
043 Fishing, Trapping, and Vermin Destroying 0 1 2 1 3 1 1 0 1 1 2 2 1 3 0 3 22
396 Photography 2 1 3 1 1 0 0 0 1 0 2 4 2 2 3 0 22
501 Compositions: Ceramic 2 4 1 2 2 0 0 1 1 2 1 1 2 0 1 2 22
416 Fluid Reaction Surfaces (i.e., Impellers) 0 2 1 3 0 1 0 1 3 0 3 1 3 2 1 1 22
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 4 0 2 0 0 3 0 2 3 2 2 1 3 0 0 0 22
602 Surgery: Splint, Brace, or Bandage 2 1 0 2 3 0 2 0 0 1 1 1 2 0 5 1 21
320 Electricity: Battery or Capacitor Charging or Discharging 1 2 0 0 1 0 0 0 0 1 1 4 3 2 2 4 21
341 Coded Data Generation or Conversion 3 1 3 1 3 1 0 0 1 1 0 0 1 0 5 1 21
368 Horology: Time Measuring Systems or Devices 1 1 2 1 4 1 0 1 2 1 0 3 0 2 2 0 21
099 Foods and Beverages: Apparatus 0 0 5 4 0 0 1 1 1 1 0 1 2 0 4 1 21
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 0 1 0 1 0 1 3 1 1 2 1 2 2 0 3 3 21
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 2 1 1 1 1 0 1 1 1 2 3 3 0 1 1 2 21
588 Hazardous or Toxic Waste Destruction or Containment 1 3 0 1 3 1 0 0 0 4 4 2 1 0 0 0 20
106 Compositions: Coating or Plastic 0 1 2 0 2 2 2 1 0 2 1 2 2 1 0 1 19
132 Toilet 3 2 0 4 1 0 2 0 1 0 0 2 1 1 2 0 19
096 Gas Separation: Apparatus 0 0 1 1 0 4 1 2 1 0 1 1 1 0 1 5 19
126 Stoves and Furnaces 0 5 3 0 0 0 2 0 0 0 3 1 0 1 2 2 19
216 Etching a Substrate: Processes 1 0 2 1 0 0 0 0 1 1 0 6 2 2 3 0 19
401 Coating Implements with Material Supply 2 1 1 0 3 1 3 1 0 0 2 1 0 2 2 0 19
414 Material or Article Handling 1 0 1 2 0 2 2 0 1 2 1 2 0 1 1 3 19
601 Surgery: Kinesitherapy 0 1 0 0 4 2 0 0 0 3 0 2 2 3 1 0 18
065 Glass Manufacturing 4 3 1 1 0 0 0 1 1 2 1 1 1 0 1 1 18
047 Plant Husbandry 1 1 1 1 0 1 0 0 1 2 3 1 1 0 1 4 18
261 Gas and Liquid Contact Apparatus 0 0 1 0 1 0 0 1 1 0 1 1 1 2 2 7 18
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 2 0 1 3 1 2 0 2 0 0 0 0 3 1 1 1 17
331 Oscillators 0 0 1 3 0 1 3 0 3 1 0 0 0 2 1 2 17
355 Photocopying 2 0 1 3 1 3 2 2 0 0 1 1 0 1 0 0 17
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 0 1 1 0 2 2 1 0 0 4 2 2 0 1 1 0 17
148 Metal Treatment 3 1 2 0 1 0 1 0 1 1 2 1 3 1 0 0 17
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 2 0 0 2 1 1 2 1 0 0 3 1 3 0 0 17
417 Pumps 6 4 1 0 0 0 0 0 0 2 1 1 1 1 0 0 17
136 Batteries: Thermoelectric and Photoelectric 3 0 1 0 1 0 0 0 0 0 1 0 2 5 2 1 17
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 2 4 1 1 0 1 0 2 0 0 1 0 1 2 0 1 16
034 Drying and Gas or Vapor Contact with Solids 3 1 3 0 4 1 1 1 0 0 0 0 1 0 0 1 16
055 Gas Separation 0 1 0 0 0 2 1 0 1 2 4 0 1 1 2 0 15
188 Brakes 0 1 0 1 1 4 0 1 0 0 1 3 0 2 1 0 15
386 Motion Video Signal Processing for Recording or Reproducing 0 0 0 1 0 0 1 4 1 1 0 0 1 1 3 2 15
454 Ventilation 2 1 0 0 1 0 0 0 1 0 0 2 3 2 2 1 15
415 Rotary Kinetic Fluid Motors or Pumps 0 0 2 1 0 1 1 1 1 0 1 0 2 1 3 0 14
053 Package Making 0 1 0 1 1 0 1 2 2 0 2 0 2 2 0 0 14
104 Railways 1 0 1 1 0 1 0 0 0 1 3 2 0 1 2 1 14
445 Electric Lamp or Space Discharge Component or Device Manufacturing 1 1 0 4 1 2 3 0 0 0 0 1 1 0 0 0 14
044 Fuel and Related Compositions 0 2 0 0 0 2 0 0 0 1 1 2 1 1 0 4 14
200 Electricity: Circuit Makers and Breakers 3 2 1 0 1 0 0 0 0 3 0 1 0 0 1 1 13
505 Superconductor Technology: Apparatus, Material, Process 2 2 1 0 0 1 0 0 0 0 1 2 0 2 2 0 13
404 Road Structure, Process, or Apparatus 1 0 1 0 1 0 1 3 0 1 2 0 1 2 0 0 13
441 Buoys, Rafts, and Aquatic Devices 1 0 2 1 2 1 2 0 1 2 1 0 0 0 0 0 13
160 Flexible or Portable Closure, Partition, or Panel 1 0 1 2 1 2 1 0 0 1 2 0 0 0 1 0 12
312 Supports: Cabinet Structure 3 0 3 0 2 0 0 0 0 0 2 0 0 1 1 0 12
451 Abrading 3 3 1 0 1 1 1 1 1 0 0 0 0 0 0 0 12
360 Dynamic Magnetic Information Storage or Retrieval 3 1 2 1 0 0 1 0 0 0 1 0 0 1 1 1 12
450 Foundation Garments 1 1 1 0 0 0 2 0 0 0 1 1 0 1 2 1 12
175 Boring or Penetrating the Earth 0 0 1 0 1 1 0 0 0 1 0 1 0 0 0 6 11
086 Ammunition and Explosive-Charge Making 0 4 0 0 0 1 0 0 1 0 1 1 0 1 1 1 11
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 1 0 0 0 0 2 0 1 3 3 1 0 0 11
223 Apparel Apparatus 2 1 1 0 1 0 1 0 2 0 0 1 0 0 1 0 10
229 Envelopes, Wrappers, and Paperboard Boxes 2 1 0 1 0 0 0 2 0 0 1 0 1 1 1 0 10
392 Electric Resistance Heating Devices 2 0 1 0 0 1 0 1 0 0 1 0 2 1 1 0 10
400 Typewriting Machines 0 1 2 0 1 0 1 0 0 0 0 1 0 1 1 2 10
256 Fences 1 0 0 1 1 0 2 0 1 1 0 0 0 0 1 2 10
369 Dynamic Information Storage or Retrieval 0 2 3 2 2 1 0 0 0 0 0 0 0 0 0 0 10
131 Tobacco 2 0 0 1 0 0 1 0 0 0 1 0 1 1 2 1 10
232 Deposit and Collection Receptacles 1 0 1 0 0 3 0 1 2 0 0 0 0 1 0 1 10
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 1 2 1 1 1 0 0 1 0 0 0 0 0 1 1 10
108 Horizontally Supported Planar Surfaces 1 0 1 1 1 0 2 0 1 0 0 0 0 1 0 1 10
030 Cutlery 2 0 1 1 1 0 2 0 0 0 0 1 0 1 0 0 9
074 Machine Element or Mechanism 0 1 2 1 0 1 0 0 0 1 0 0 1 0 2 0 9
081 Tools 2 0 0 0 3 1 1 0 0 1 0 0 1 0 0 0 9
292 Closure Fasteners 2 0 1 1 0 0 0 0 2 0 0 1 1 0 0 1 9
215 Bottles and Jars 0 0 0 0 0 1 2 0 1 0 1 1 1 1 0 1 9
336 Inductor Devices 0 1 0 0 0 0 0 2 1 0 1 0 0 1 2 1 9
228 Metal Fusion Bonding 1 3 0 0 0 0 0 2 0 0 0 0 0 1 1 1 9
376 Induced Nuclear Reactions: Processes, Systems, and Elements 1 0 1 1 0 0 0 0 0 3 0 0 0 2 1 0 9
063 Jewelry 0 0 0 0 1 0 1 0 0 0 1 2 1 1 2 0 9
164 Metal Founding 4 0 1 0 0 0 1 1 0 0 0 0 1 0 0 1 9
363 Electric Power Conversion Systems 5 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 8
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 1 2 0 0 0 1 2 0 0 0 0 0 0 0 1 1 8
116 Signals and Indicators 1 1 1 0 0 2 0 0 1 1 0 0 1 0 0 0 8
221 Article Dispensing 0 1 0 0 0 0 3 3 0 0 0 0 0 1 0 0 8
303 Fluid-Pressure and Analogous Brake Systems 2 2 1 1 0 1 1 0 0 0 0 0 0 0 0 0 8
070 Locks 1 1 2 2 0 0 0 0 2 0 0 0 0 0 0 0 8
150 Purses, Wallets, and Protective Covers 0 2 1 0 0 0 0 0 0 0 0 1 1 1 0 2 8
110 Furnaces 1 1 2 0 0 1 1 1 0 0 0 0 0 0 0 1 8
246 Railway Switches and Signals 0 1 0 1 2 0 0 0 0 0 0 0 1 0 1 1 7
283 Printed Matter 2 3 0 1 0 0 1 0 0 0 0 0 0 0 0 0 7
301 Land Vehicles: Wheels and Axles 1 0 0 2 1 1 1 0 0 0 0 0 0 0 0 1 7
403 Joints and Connections 2 1 2 0 0 1 0 0 0 0 0 0 0 0 0 1 7
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 3 7
027 Undertaking 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 4 7
383 Flexible Bags 0 2 1 0 0 0 0 0 1 0 1 0 0 0 1 1 7
242 Winding, Tensioning, or Guiding 1 0 1 1 1 0 1 0 0 0 0 1 0 0 0 1 7
323 Electricity: Power Supply or Regulation Systems 0 1 1 0 1 1 1 0 0 0 0 1 0 0 1 0 7
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 0 0 0 1 1 0 0 2 1 0 1 1 7
083 Cutting 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 3 7
105 Railway Rolling Stock 0 1 0 0 1 0 1 0 0 1 0 2 0 0 0 0 6
408 Cutting by Use of Rotating Axially Moving Tool 1 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 6
504 Plant Protecting and Regulating Compositions 2 1 0 0 0 1 0 0 0 1 0 0 1 0 0 0 6
281 Books, Strips, and Leaves 0 0 1 0 0 0 0 1 0 0 1 0 1 1 0 1 6
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 2 2 0 0 0 0 0 0 0 0 0 0 1 1 0 0 6
072 Metal Deforming 1 0 0 0 0 1 0 0 1 0 0 0 0 1 1 1 6
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 2 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 6
431 Combustion 0 1 1 0 0 0 0 0 0 0 0 0 0 1 3 0 6
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 0 0 1 0 0 0 2 1 1 0 0 0 1 0 6
251 Valves and Valve Actuation 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 2 6
452 Butchering 1 0 0 2 0 0 0 0 1 0 0 1 1 0 0 0 6
014 Bridges 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 1 5
190 Trunks and Hand-Carried Luggage 0 0 0 0 0 0 1 1 1 0 0 0 0 1 0 1 5
037 Excavating 0 1 0 0 2 0 0 1 0 0 0 0 0 0 0 1 5
038 Textiles: Ironing or Smoothing 0 0 0 1 0 0 0 0 0 0 0 0 1 2 0 1 5
054 Harness for Working Animal 2 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 5
203 Distillation: Processes, Separatory 0 0 1 2 0 0 0 0 1 0 0 0 1 0 0 0 5
409 Gear Cutting, Milling, or Planing 0 0 1 1 0 1 0 0 0 0 1 0 0 0 1 0 5
007 Compound Hand Tools 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 1 5
122 Liquid Heaters and Vaporizers 0 0 1 0 0 0 1 0 0 1 0 1 0 1 0 0 5
419 Powder Metallurgy Processes 0 2 0 0 1 0 0 0 0 0 1 0 0 1 0 0 5
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 0 0 1 0 0 0 1 1 0 1 0 0 0 0 0 5
236 Automatic Temperature and Humidity Regulation 0 1 1 0 0 0 0 1 0 0 0 0 1 0 0 1 5
082 Turning (e.g., for metal working) 0 0 0 0 0 0 0 0 0 0 0 1 3 1 0 0 5
353 Optics: Image Projectors 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 5
347 Incremental Printing of Symbolic Information 1 0 1 0 0 0 0 0 0 0 2 0 0 0 0 0 4
049 Movable or Removable Closures 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 1 4
125 Stone Working 1 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 4
139 Textiles: Weaving 0 0 0 0 0 0 2 0 0 0 1 0 0 0 0 1 4
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 1 1 2 0 0 0 0 0 0 0 0 0 0 0 4
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 2 1 0 0 0 0 0 0 1 0 0 0 0 0 4
475 Planetary Gear Transmission Systems or Components 0 0 1 2 0 0 0 0 0 1 0 0 0 0 0 0 4
494 Imperforate Bowl: Centrifugal Separators 0 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 4
720 Dynamic Optical Information Storage or Retrieval 0 0 1 0 0 1 1 1 0 0 0 0 0 0 0 0 4
048 Gas: Heating and Illuminating 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 4
177 Weighing Scales 0 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 4
271 Sheet Feeding or Delivering 0 0 0 0 0 1 0 0 0 0 2 0 1 0 0 0 4
472 Amusement Devices 0 0 1 0 0 0 1 0 0 0 1 0 1 0 0 0 4
285 Pipe Joints or Couplings 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 3
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 3
140 Wireworking 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3
152 Resilient Tires and Wheels 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3
194 Check-Actuated Control Mechanisms 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 3
201 Distillation: Processes, Thermolytic 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 3
267 Spring Devices 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 3
279 Chucks or Sockets 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3
293 Vehicle Fenders 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 3
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 3
144 Woodworking 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 3
366 Agitating (e.g., of articles and materials) 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 3
162 Paper Making and Fiber Liberation 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 3
266 Metallurgical Apparatus 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 3
289 Knots and Knot Tying 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 2
023 Chemistry: Physical Processes 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 2
071 Chemistry: Fertilizers 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 2
100 Presses 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2
109 Safes, Bank Protection, or a Related Device 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 2
112 Sewing 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2
138 Pipes and Tubular Conduits 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 2
169 Fire Extinguishers 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2
173 Tool Driving or Impacting 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
202 Distillation: Apparatus 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 2
212 Traversing Hoists 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 2
213 Railway Draft Appliances 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
227 Elongated-Member-Driving Apparatus 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 2
238 Railways: Surface Track 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 2
241 Solid Material Comminution or Disintegration 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 2
249 Static Molds 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 2
269 Work Holders 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 2
277 Seal for a Joint or Juncture 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 2
299 Mining or In Situ Disintegration of Hard Material 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2
329 Demodulators 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2
373 Industrial Electric Heating Furnaces 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 2
399 Electrophotography 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
406 Conveyors: Fluid Current 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 2
418 Rotary Expansible Chamber Devices 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2
092 Expansible Chamber Devices 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 2
101 Printing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2
420 Alloys or Metallic Compositions 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
474 Endless Belt Power Transmission Systems or Components 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 2
322 Electricity: Single Generator Systems 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
059 Chain, Staple, and Horseshoe Making 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
171 Unearthing Plants or Buried Objects 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
172 Earth Working 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
184 Lubrication 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
186 Merchandising 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
225 Severing by Tearing or Breaking 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
226 Advancing Material of Indeterminate Length 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
237 Heating Systems 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
332 Modulators 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
346 Recorders 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
091 Motors: Expansible Chamber Type 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
111 Planting 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
191 Electricity: Transmission To Vehicles 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
291 Track Sanders 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
384 Bearings 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
476 Friction Gear Transmission Systems or Components 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
ALL ALL CLASSES 1218 1286 1307 1251 1226 1105 1371 1203 1242 1302 1758 1790 1952 2152 2285 2310 24760


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