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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

Houston-Sugar Land-Baytown, TX

( 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
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 161 202 197 242 294 203 324 276 299 290 424 347 429 442 538 622 5290
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 114 137 135 98 89 91 114 85 70 99 115 125 106 140 163 147 1828
175 Boring or Penetrating the Earth 74 80 73 80 63 57 94 78 92 80 137 141 132 123 145 181 1630
532 Organic Compounds (includes Classes 532-570) 33 34 72 36 26 26 48 39 24 27 47 67 78 105 149 139 950
702 DP: Measuring, Calibrating, or Testing (Data Processing) 48 42 52 36 69 57 53 53 56 37 55 78 82 83 83 63 947
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 64 58 51 43 47 33 41 41 41 34 59 39 65 52 74 59 801
324 Electricity: Measuring and Testing 33 34 39 61 41 39 41 41 58 41 66 43 54 59 56 34 740
585 Chemistry of Hydrocarbon Compounds 28 29 37 26 33 25 53 63 52 42 56 57 52 62 64 52 731
073 Measuring and Testing 26 28 31 38 35 41 38 45 39 44 52 51 57 50 47 72 694
367 Communications, Electrical: Acoustic Wave Systems and Devices 38 18 19 21 19 20 24 27 24 37 54 48 43 67 66 85 610
507 Earth Boring, Well Treating, and Oil Field Chemistry 31 25 10 21 22 20 34 30 22 48 52 76 44 40 51 45 571
435 Chemistry: Molecular Biology and Microbiology 34 27 23 32 47 42 19 40 37 18 27 31 28 27 35 20 487
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 31 20 41 30 28 32 34 37 25 27 34 17 27 30 45 29 487
405 Hydraulic and Earth Engineering 18 32 24 22 26 32 26 18 22 14 16 25 30 49 57 37 448
208 Mineral Oils: Processes and Products 20 18 25 15 15 12 20 19 26 28 42 37 28 46 43 28 422
361 Electricity: Electrical Systems and Devices 32 21 35 28 34 14 29 22 34 26 27 22 19 27 25 15 410
340 Communications: Electrical 14 14 22 18 23 27 35 23 19 15 16 20 35 28 30 50 389
713 Support (Electrical Computers and Digital Processing Systems) 25 22 17 18 11 14 30 20 21 16 29 21 30 26 37 27 364
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 66 54 34 24 30 21 32 5 9 7 9 5 5 9 18 14 342
137 Fluid Handling 33 34 22 27 12 16 16 18 9 11 10 13 19 29 27 40 336
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 2 1 1 4 8 11 17 10 16 21 32 24 34 49 53 50 333
210 Liquid Purification or Separation 26 24 23 27 24 14 9 16 16 11 17 24 22 23 31 22 329
250 Radiant Energy 8 9 8 11 12 15 12 19 17 26 11 18 12 36 41 42 297
428 Stock Material or Miscellaneous Articles 14 12 21 20 11 10 14 15 19 15 19 28 16 24 21 25 284
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 12 10 12 10 6 5 11 14 16 12 25 20 39 29 25 32 278
714 Error Detection/Correction and Fault Detection/Recovery 17 5 17 19 22 12 12 11 14 20 13 17 18 19 23 32 271
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 3 4 3 4 4 11 8 6 14 24 37 33 37 35 26 11 260
128 Surgery (includes Class 600) 22 23 21 21 19 13 16 10 14 10 11 13 6 18 15 25 257
062 Refrigeration 23 24 17 20 17 18 16 26 13 13 5 9 6 11 12 20 250
423 Chemistry of Inorganic Compounds 6 9 3 10 18 13 24 10 20 18 25 17 14 20 19 23 249
052 Static Structures (e.g., Buildings) 19 18 13 14 13 10 4 12 6 10 22 14 16 20 21 25 237
285 Pipe Joints or Couplings 16 15 24 18 17 15 10 6 15 20 18 11 7 10 17 17 236
251 Valves and Valve Actuation 17 11 14 15 7 14 19 12 9 6 10 5 10 17 25 34 225
114 Ships 11 11 17 10 14 11 16 10 14 5 11 14 16 17 22 16 215
607 Surgery: Light, Thermal, and Electrical Application 19 18 9 22 10 5 4 4 4 8 18 16 13 26 18 12 206
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 8 10 20 10 10 9 13 10 9 11 13 14 12 15 13 27 204
711 Memory (Electrical Computers and Digital Processing Systems) 9 24 9 17 17 15 13 6 5 2 4 11 19 12 12 22 197
707 DP: Database and File Management or Data Structures (Data Processing) 3 7 9 7 6 4 6 7 10 15 16 19 21 23 24 15 192
029 Metal Working 4 2 7 10 9 12 6 10 4 12 13 17 12 13 20 19 170
345 Computer Graphics Processing and Selective Visual Display Systems 11 16 10 9 7 9 11 5 6 7 5 11 11 12 22 17 169
482 Exercise Devices 17 11 9 12 12 9 12 8 8 13 12 5 7 4 7 10 156
095 Gas Separation: Processes 5 4 1 5 7 8 4 6 3 12 11 14 20 25 18 8 151
439 Electrical Connectors 8 5 7 9 13 10 11 14 13 10 10 17 6 9 5 4 151
370 Multiplex Communications 2 9 4 3 2 2 5 5 6 6 4 11 11 17 19 44 150
382 Image Analysis 1 1 2 2 4 3 6 6 4 8 10 21 24 17 15 21 145
417 Pumps 11 18 9 8 4 2 7 4 2 3 4 4 11 22 20 10 139
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 5 8 6 10 5 5 8 5 4 9 4 8 26 22 14 139
060 Power Plants 2 8 9 8 7 9 7 3 8 4 7 4 6 11 17 23 133
356 Optics: Measuring and Testing 4 4 1 3 2 4 10 12 5 14 15 8 11 16 15 8 132
277 Seal for a Joint or Juncture 8 12 13 5 5 12 4 3 3 2 7 9 8 5 8 19 123
604 Surgery (Medicators and Receptors) 11 4 11 8 5 5 2 8 3 7 3 9 8 14 4 12 114
048 Gas: Heating and Illuminating 1 0 0 2 2 2 6 2 2 5 9 11 14 19 17 13 105
138 Pipes and Tubular Conduits 6 7 9 8 5 6 3 6 4 8 3 5 8 8 4 14 104
248 Supports (e.g., for holding articles, etc.) 2 8 5 11 6 4 3 4 5 3 8 11 5 9 8 12 104
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 7 10 1 7 5 7 7 8 11 8 7 8 4 3 5 5 103
606 Surgery (instruments) 8 5 6 7 8 4 8 5 3 0 0 9 10 11 7 9 100
252 Compositions 7 8 4 9 4 5 7 1 4 1 6 5 5 8 11 14 99
174 Electricity: Conductors and Insulators 3 9 5 6 1 11 6 8 9 8 6 5 1 5 8 7 98
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 8 10 7 3 4 2 3 3 3 4 3 16 6 5 7 11 95
726 Information Security 8 6 5 5 2 4 3 5 2 9 7 4 10 7 8 10 95
348 Television 4 11 4 4 3 0 2 1 1 0 2 4 7 13 20 17 93
385 Optical Waveguides 1 1 1 4 3 2 3 9 8 14 9 7 4 9 2 15 92
436 Chemistry: Analytical and Immunological Testing 7 7 1 2 5 4 6 4 7 3 4 5 6 9 8 6 84
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 7 3 3 8 3 2 4 3 2 3 6 4 7 6 12 11 84
427 Coating Processes 3 3 2 8 6 4 1 4 3 1 5 6 7 10 4 15 82
209 Classifying, Separating, and Assorting Solids 6 9 8 8 6 7 4 3 4 4 2 4 5 1 5 2 78
181 Acoustics 5 6 6 6 3 6 2 8 4 3 4 7 5 3 5 4 77
362 Illumination 6 6 4 6 2 2 5 6 4 2 8 6 2 5 3 7 74
002 Apparel 7 6 9 2 7 4 2 2 3 3 3 3 3 2 9 8 73
044 Fuel and Related Compositions 2 5 4 0 1 3 0 1 0 1 3 6 6 10 14 17 73
455 Telecommunications 2 3 6 2 5 3 7 1 1 5 4 6 3 8 9 8 73
134 Cleaning and Liquid Contact with Solids 7 1 5 6 1 3 3 6 2 2 5 8 7 5 4 6 71
706 DP: Artificial Intelligence (Data Processing) 0 1 0 0 3 1 1 2 1 12 5 5 8 6 16 10 71
102 Ammunition and Explosives 1 1 11 6 1 0 1 5 3 4 8 6 6 7 8 2 70
414 Material or Article Handling 2 2 1 1 1 3 1 3 3 0 2 5 12 9 11 14 70
717 DP: Software Development, Installation, and Management (Data Processing) 1 2 2 1 8 6 7 2 5 2 7 3 1 6 4 11 68
219 Electric Heating 12 11 4 2 1 2 4 4 1 2 1 1 1 8 5 7 66
280 Land Vehicles 3 3 3 3 0 6 2 3 4 4 6 3 8 4 1 12 65
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 7 4 6 3 2 2 5 3 1 2 5 3 3 8 1 10 65
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 1 2 2 3 3 4 6 9 5 8 6 3 1 1 4 6 64
290 Prime-Mover Dynamo Plants 1 2 0 1 2 0 4 6 4 1 3 7 2 7 19 5 64
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 3 4 3 13 5 4 6 4 4 2 3 2 2 2 6 1 64
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 2 1 2 2 4 3 1 2 3 2 7 3 6 11 7 8 64
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 5 6 8 5 8 4 2 2 2 2 5 3 3 4 3 0 62
033 Geometrical Instruments 7 0 4 2 4 5 5 1 3 3 4 3 4 5 3 6 59
220 Receptacles 6 2 4 1 1 1 7 2 1 0 6 4 3 5 8 7 58
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 6 4 2 1 2 2 4 1 4 2 3 3 5 6 5 7 57
320 Electricity: Battery or Capacitor Charging or Discharging 7 1 3 0 0 1 1 5 2 5 6 4 4 3 3 10 55
106 Compositions: Coating or Plastic 2 5 4 6 2 4 3 1 5 2 6 0 5 1 4 4 54
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 2 2 4 2 1 4 3 1 2 2 2 5 7 6 2 7 52
307 Electrical Transmission or Interconnection Systems 3 3 1 0 0 0 3 0 2 5 3 6 5 8 5 7 51
365 Static Information Storage and Retrieval 14 4 4 2 1 0 1 2 2 1 2 3 4 2 3 5 50
438 Semiconductor Device Manufacturing: Process 3 4 4 3 2 2 4 5 3 4 3 4 3 4 0 2 50
165 Heat Exchange 6 6 3 5 2 5 1 2 1 2 1 2 2 3 3 5 49
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 6 3 1 8 1 2 4 4 1 1 1 6 2 5 4 49
375 Pulse or Digital Communications 2 4 5 3 1 1 1 3 4 3 0 5 3 5 3 6 49
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 7 5 4 4 1 2 5 3 2 0 1 2 1 4 4 3 48
206 Special Receptacle or Package 3 2 4 3 5 8 0 2 0 2 0 3 5 4 3 4 48
366 Agitating (e.g., of articles and materials) 3 3 3 1 3 1 1 0 1 2 5 6 3 4 8 4 48
015 Brushing, Scrubbing, and General Cleaning 6 3 2 0 1 2 2 1 3 0 7 5 7 4 3 1 47
239 Fluid Sprinkling, Spraying, and Diffusing 3 0 3 4 3 0 2 3 1 1 2 3 4 4 5 9 47
096 Gas Separation: Apparatus 2 0 3 0 8 1 0 0 0 1 4 5 4 3 9 6 46
204 Chemistry: Electrical and Wave Energy 2 2 3 1 2 6 6 3 1 2 2 6 4 1 2 3 46
089 Ordnance 1 0 3 4 0 2 1 2 4 1 4 2 8 4 4 5 45
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 4 4 3 2 5 3 2 2 0 3 5 3 3 3 3 45
431 Combustion 0 1 0 2 1 16 4 2 4 3 2 7 1 2 0 0 45
180 Motor Vehicles 1 2 1 2 3 2 3 1 1 3 9 6 2 1 4 3 44
351 Optics: Eye Examining, Vision Testing and Correcting 0 2 1 2 0 3 4 8 5 4 3 2 2 2 1 5 44
379 Telephonic Communications 2 8 2 5 3 2 7 2 3 3 2 1 1 3 0 0 44
415 Rotary Kinetic Fluid Motors or Pumps 0 2 2 3 1 2 0 2 1 2 1 5 9 5 4 5 44
473 Games Using Tangible Projectile 4 4 2 4 0 0 2 3 1 4 2 2 3 5 3 4 43
119 Animal Husbandry 5 5 0 0 2 2 0 4 2 0 3 6 3 4 3 3 42
310 Electrical Generator or Motor Structure 0 3 1 1 1 1 4 1 7 5 4 2 1 3 2 5 41
343 Communications: Radio Wave Antennas 1 4 1 2 3 2 3 2 1 4 5 2 3 2 1 5 41
203 Distillation: Processes, Separatory 4 3 3 0 1 3 1 2 2 0 2 2 5 3 3 6 40
228 Metal Fusion Bonding 7 1 2 2 3 6 0 2 0 1 3 3 2 1 4 3 40
244 Aeronautics and Astronautics 1 3 1 4 5 3 1 1 2 2 4 6 0 3 2 2 40
374 Thermal Measuring and Testing 3 0 4 3 2 2 1 2 3 1 1 1 2 4 5 5 39
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 17 7 3 0 2 2 2 0 1 1 2 1 0 0 0 1 39
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 0 0 0 0 0 0 0 1 2 6 12 16 37
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 4 3 0 0 1 1 1 1 1 2 0 6 7 2 7 37
222 Dispensing (apparatus and process) 4 3 3 2 4 0 5 1 0 0 4 0 2 1 6 2 37
261 Gas and Liquid Contact Apparatus 2 6 5 3 3 0 0 3 1 2 1 1 5 0 2 3 37
294 Handling: Hand and Hoist-Line Implements 2 3 2 3 0 1 2 0 3 1 2 1 0 4 5 7 36
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 3 2 1 1 1 4 1 4 4 2 3 1 6 0 1 2 36
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 1 6 2 2 3 3 1 1 2 3 1 3 1 1 0 5 35
403 Joints and Connections 4 4 4 6 4 2 1 0 0 1 3 1 0 2 0 3 35
602 Surgery: Splint, Brace, or Bandage 5 5 2 1 0 1 0 1 0 2 1 2 3 5 5 2 35
043 Fishing, Trapping, and Vermin Destroying 2 3 3 2 3 2 0 1 1 1 7 1 2 2 2 2 34
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 2 5 3 3 5 4 0 1 1 0 1 0 2 5 1 34
398 Optical Communications 0 0 0 0 0 0 0 0 0 0 0 3 8 4 10 9 34
076 Metal Tools and Implements, Making 0 0 1 3 3 1 1 3 1 1 6 2 6 1 1 3 33
182 Fire Escape, Ladder, or Scaffold 5 3 5 2 2 1 0 0 1 0 0 0 2 3 6 3 33
318 Electricity: Motive Power Systems 0 2 0 1 0 1 3 6 2 2 1 1 3 2 5 4 33
433 Dentistry 6 3 2 2 1 3 2 1 1 1 2 1 0 2 2 4 33
005 Beds 2 5 2 2 3 0 0 0 3 2 5 2 1 2 1 2 32
426 Food or Edible Material: Processes, Compositions, and Products 7 1 2 4 0 3 2 0 0 2 1 1 1 0 2 6 32
004 Baths, Closets, Sinks, and Spittoons 4 3 2 2 2 0 3 2 1 1 2 1 2 2 0 4 31
123 Internal-Combustion Engines 0 1 0 3 0 2 4 3 2 0 2 1 3 4 3 3 31
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 3 2 2 0 0 0 2 1 3 0 4 6 1 3 2 2 31
081 Tools 0 5 1 3 0 2 2 2 0 0 3 1 3 3 3 2 30
211 Supports: Racks 3 3 1 2 0 1 5 2 1 2 4 1 1 1 1 2 30
341 Coded Data Generation or Conversion 0 2 2 0 1 1 3 4 4 5 0 0 2 2 1 3 30
359 Optical: Systems and Elements 5 3 3 2 4 1 3 2 0 1 0 3 0 1 1 1 30
441 Buoys, Rafts, and Aquatic Devices 4 3 0 2 2 1 2 2 3 0 2 2 4 1 1 1 30
055 Gas Separation 0 0 1 1 1 1 3 1 1 1 3 2 5 4 3 2 29
241 Solid Material Comminution or Disintegration 0 1 1 0 0 1 1 0 1 1 1 2 7 3 4 6 29
296 Land Vehicles: Bodies and Tops 2 3 2 3 3 0 1 1 4 2 1 2 1 1 3 0 29
378 X-Ray or Gamma Ray Systems or Devices 1 2 1 1 1 1 0 0 2 6 2 2 2 0 1 7 29
418 Rotary Expansible Chamber Devices 1 5 1 3 0 2 1 0 2 1 1 1 4 0 2 5 29
504 Plant Protecting and Regulating Compositions 6 2 2 2 0 0 1 0 0 0 0 1 6 3 3 3 29
148 Metal Treatment 2 2 5 2 2 2 2 0 1 1 2 0 2 1 4 0 28
392 Electric Resistance Heating Devices 2 1 1 1 0 0 0 0 1 1 3 3 6 5 2 2 28
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 2 2 1 2 0 0 0 0 2 4 3 5 1 1 2 3 28
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 4 2 5 0 1 2 0 2 1 0 2 2 2 2 1 1 27
363 Electric Power Conversion Systems 1 5 3 1 2 1 1 0 2 0 0 2 2 1 4 2 27
040 Card, Picture, or Sign Exhibiting 4 3 3 3 2 0 0 1 0 0 2 2 0 1 2 3 26
132 Toilet 2 1 1 1 3 2 1 0 1 0 1 1 0 2 3 7 26
297 Chairs and Seats 0 0 3 4 4 0 1 2 0 1 0 0 1 3 2 5 26
381 Electrical Audio Signal Processing Systems and Devices 3 2 2 2 2 2 3 0 0 1 1 1 2 0 3 2 26
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 2 1 2 2 3 3 1 3 0 2 1 0 3 0 2 26
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 4 3 0 1 2 2 1 1 0 0 1 1 2 4 3 1 26
419 Powder Metallurgy Processes 5 1 2 0 0 0 0 2 1 1 3 2 4 1 1 2 25
224 Package and Article Carriers 0 4 2 3 3 0 0 0 2 0 1 1 1 1 4 2 24
273 Amusement Devices: Games 2 1 1 1 4 0 2 1 2 0 2 2 0 2 2 2 24
358 Facsimile and Static Presentation Processing 1 1 1 5 1 0 1 4 1 0 0 1 0 4 3 1 24
454 Ventilation 1 1 3 1 1 1 2 2 2 1 3 1 0 4 0 1 24
463 Amusement Devices: Games 0 0 0 2 0 2 0 0 0 1 1 1 5 4 2 6 24
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 2 4 2 8 0 1 0 0 1 3 1 1 1 0 0 0 24
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 1 1 1 2 2 2 2 0 5 3 1 2 0 1 1 24
092 Expansible Chamber Devices 1 2 3 0 1 1 1 2 0 0 0 1 0 5 3 3 23
312 Supports: Cabinet Structure 2 1 3 0 2 2 0 0 1 0 1 1 0 1 1 7 22
416 Fluid Reaction Surfaces (i.e., Impellers) 1 2 1 0 1 1 0 0 1 1 1 5 1 0 3 4 22
434 Education and Demonstration 3 1 1 2 0 1 0 0 2 0 0 2 1 5 2 2 22
242 Winding, Tensioning, or Guiding 4 2 3 2 0 0 1 1 0 0 3 2 0 1 0 2 21
372 Coherent Light Generators 0 0 1 6 6 1 2 1 0 2 1 0 0 0 0 1 21
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 1 3 1 1 3 3 1 0 3 2 1 1 0 1 0 21
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 2 0 0 2 1 0 2 0 2 1 4 4 0 3 21
070 Locks 1 1 3 4 0 1 0 1 1 1 1 0 1 1 1 3 20
084 Music 4 1 4 1 1 0 1 1 1 3 1 0 0 1 0 1 20
202 Distillation: Apparatus 2 3 3 0 0 0 1 2 1 1 0 3 1 3 0 0 20
326 Electronic Digital Logic Circuitry 0 3 0 0 1 1 2 0 0 0 3 6 1 3 0 0 20
024 Buckles, Buttons, Clasps, Etc. 1 1 0 2 1 0 0 0 2 0 1 3 0 3 2 3 19
110 Furnaces 3 4 2 1 0 2 0 2 0 0 1 0 3 0 1 0 19
384 Bearings 1 2 3 1 0 0 0 1 1 1 0 0 1 4 2 2 19
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 0 0 0 1 1 1 4 3 1 1 1 4 1 0 0 19
074 Machine Element or Mechanism 1 1 1 1 1 0 0 1 0 1 3 0 1 2 1 4 18
164 Metal Founding 0 1 0 0 0 1 0 3 0 0 2 4 2 0 3 2 18
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 1 1 2 2 0 0 3 2 0 1 0 1 1 3 1 0 18
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 2 0 2 0 0 2 1 1 1 0 1 1 3 0 2 1 17
446 Amusement Devices: Toys 5 1 0 2 3 1 1 2 0 0 0 2 0 0 0 0 17
049 Movable or Removable Closures 3 1 2 0 2 2 2 0 0 0 0 0 0 2 1 1 16
053 Package Making 3 0 0 2 1 1 1 0 1 1 0 0 4 2 0 0 16
124 Mechanical Guns and Projectors 0 1 0 0 3 2 4 1 2 1 2 0 0 0 0 0 16
269 Work Holders 3 0 0 0 0 0 0 0 1 1 1 1 1 5 0 3 16
299 Mining or In Situ Disintegration of Hard Material 0 0 0 0 0 1 2 0 0 0 3 0 4 2 3 1 16
451 Abrading 1 4 2 0 1 1 1 2 0 2 0 0 1 0 1 0 16
047 Plant Husbandry 2 2 3 0 0 1 1 0 0 2 1 1 1 1 0 0 15
160 Flexible or Portable Closure, Partition, or Panel 2 3 2 1 1 0 1 1 0 0 0 0 0 2 2 0 15
601 Surgery: Kinesitherapy 0 2 0 2 1 1 1 1 0 0 1 1 1 0 1 3 15
030 Cutlery 3 3 0 2 2 0 0 0 0 0 0 0 2 2 0 0 14
083 Cutting 3 1 0 2 1 2 1 1 1 0 0 0 1 1 0 0 14
135 Tent, Canopy, Umbrella, or Cane 0 5 0 1 0 0 0 0 0 1 1 0 2 0 1 3 14
136 Batteries: Thermoelectric and Photoelectric 2 0 1 1 0 0 1 0 0 0 0 0 1 3 2 3 14
196 Mineral Oils: Apparatus 1 0 0 0 0 0 0 0 1 0 0 6 1 3 2 0 14
313 Electric Lamp and Discharge Devices 0 5 3 1 1 1 0 0 0 0 1 0 0 0 0 2 14
323 Electricity: Power Supply or Regulation Systems 0 2 0 0 0 0 4 0 0 0 1 0 0 1 2 4 14
708 Arithmetic Processing and Calculating (Electrical Computers) 3 3 2 0 2 0 0 0 2 0 0 0 0 1 1 0 14
036 Boots, Shoes, and Leggings 1 1 2 1 0 1 0 0 0 0 2 1 2 0 1 1 13
101 Printing 2 0 0 0 0 0 1 1 1 1 0 0 0 0 1 6 13
152 Resilient Tires and Wheels 0 2 2 1 0 3 0 0 1 0 1 2 0 0 0 1 13
292 Closure Fasteners 1 1 1 1 0 1 0 0 1 2 2 0 1 1 0 1 13
333 Wave Transmission Lines and Networks 1 0 2 1 1 0 1 1 0 0 0 0 1 1 0 4 13
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 4 2 0 0 0 1 0 1 1 2 0 0 0 2 13
440 Marine Propulsion 0 1 1 0 0 0 0 1 0 1 1 4 1 2 1 0 13
494 Imperforate Bowl: Centrifugal Separators 3 0 0 1 2 0 2 1 1 2 0 0 1 0 0 0 13
505 Superconductor Technology: Apparatus, Material, Process 1 4 0 1 0 1 2 0 0 0 1 0 2 0 1 0 13
037 Excavating 1 0 1 1 0 0 0 0 0 1 3 2 0 1 0 2 12
042 Firearms 0 1 1 1 2 0 0 0 0 0 0 1 2 1 3 0 12
099 Foods and Beverages: Apparatus 2 0 0 0 1 1 0 0 1 2 0 0 1 0 2 2 12
184 Lubrication 0 2 1 0 0 0 0 0 1 0 0 2 1 2 3 0 12
200 Electricity: Circuit Makers and Breakers 0 0 0 0 1 1 1 1 0 1 1 0 3 0 0 3 12
380 Cryptography 1 0 1 0 0 0 2 1 1 1 0 1 0 2 2 0 12
034 Drying and Gas or Vapor Contact with Solids 2 0 0 1 1 1 0 0 1 0 0 1 0 1 0 3 11
108 Horizontally Supported Planar Surfaces 2 0 1 1 0 1 0 1 0 0 0 0 0 0 2 3 11
229 Envelopes, Wrappers, and Paperboard Boxes 0 2 1 0 0 0 1 0 1 1 1 2 0 1 1 0 11
369 Dynamic Information Storage or Retrieval 3 0 1 2 0 2 0 1 0 0 0 0 1 1 0 0 11
396 Photography 1 0 1 1 0 0 0 0 1 1 0 0 1 1 2 2 11
404 Road Structure, Process, or Apparatus 0 0 3 0 1 1 2 0 0 1 0 2 0 0 1 0 11
408 Cutting by Use of Rotating Axially Moving Tool 1 3 0 0 1 0 0 0 1 0 1 0 1 0 1 2 11
588 Hazardous or Toxic Waste Destruction or Containment 1 4 0 1 0 0 0 1 0 1 0 1 2 0 0 0 11
054 Harness for Working Animal 1 1 0 0 0 0 0 1 1 1 0 0 3 1 1 0 10
072 Metal Deforming 1 1 1 0 0 0 1 0 0 2 0 1 1 0 0 2 10
111 Planting 2 1 2 2 0 0 0 0 1 0 1 0 0 0 1 0 10
116 Signals and Indicators 0 2 1 1 1 0 1 0 1 0 1 0 0 1 0 1 10
122 Liquid Heaters and Vaporizers 0 1 0 0 0 0 0 1 1 2 1 1 0 1 1 1 10
173 Tool Driving or Impacting 1 0 2 2 0 1 0 0 0 0 0 0 1 1 0 2 10
198 Conveyors: Power-Driven 0 1 1 2 0 0 0 0 1 0 2 0 1 1 1 0 10
336 Inductor Devices 1 1 0 0 0 0 2 0 0 1 1 2 2 0 0 0 10
360 Dynamic Magnetic Information Storage or Retrieval 0 0 0 0 1 0 0 1 2 2 0 1 1 0 1 1 10
401 Coating Implements with Material Supply 3 0 0 0 0 1 1 0 0 1 2 1 0 0 0 1 10
410 Freight Accommodation On Freight Carrier 1 1 2 0 0 0 1 2 0 0 0 0 0 0 1 2 10
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 0 0 2 0 0 0 1 1 1 0 1 1 0 1 1 0 9
162 Paper Making and Fiber Liberation 1 1 1 0 0 0 0 1 0 0 0 1 1 0 2 1 9
172 Earth Working 1 0 0 0 1 0 2 1 1 1 1 0 0 0 0 1 9
472 Amusement Devices 1 0 1 0 0 1 0 0 0 1 0 0 0 1 1 3 9
104 Railways 0 1 0 0 0 0 1 1 0 1 0 1 3 0 0 0 8
126 Stoves and Furnaces 3 0 1 1 0 0 0 1 0 0 0 0 0 1 0 1 8
169 Fire Extinguishers 1 0 0 1 0 1 0 1 0 0 0 1 1 1 0 1 8
188 Brakes 0 1 0 0 0 1 1 0 1 1 0 0 0 2 0 1 8
221 Article Dispensing 0 2 1 1 0 0 0 1 0 0 0 0 0 0 0 3 8
266 Metallurgical Apparatus 2 1 1 0 1 0 0 0 0 0 0 0 0 1 1 1 8
267 Spring Devices 1 2 0 0 1 0 0 0 0 0 2 0 1 1 0 0 8
347 Incremental Printing of Symbolic Information 2 0 2 0 1 0 0 0 1 0 0 0 0 0 0 2 8
353 Optics: Image Projectors 0 1 2 2 1 0 0 0 0 1 1 0 0 0 0 0 8
407 Cutters, for Shaping 2 0 1 1 1 0 0 1 1 1 0 0 0 0 0 0 8
409 Gear Cutting, Milling, or Planing 1 1 1 0 0 0 0 0 1 0 1 1 1 0 0 1 8
725 Interactive Video Distribution Systems 0 1 0 2 1 0 0 0 1 1 1 0 0 1 0 0 8
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 2 0 0 0 1 0 0 0 0 1 1 2 0 0 0 0 7
063 Jewelry 0 1 0 0 2 1 1 1 0 1 0 0 0 0 0 0 7
082 Turning (e.g., for metal working) 0 1 0 1 0 0 0 1 0 0 1 0 1 1 1 0 7
118 Coating Apparatus 0 0 0 0 0 1 0 0 0 0 1 0 2 0 3 0 7
216 Etching a Substrate: Processes 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 3 7
223 Apparel Apparatus 2 0 1 0 0 1 0 0 1 0 0 1 1 0 0 0 7
331 Oscillators 0 0 1 2 0 0 2 1 0 0 1 0 0 0 0 0 7
383 Flexible Bags 2 1 0 1 0 0 0 0 0 0 1 1 0 0 1 0 7
432 Heating 2 0 1 1 2 0 1 0 0 0 0 0 0 0 0 0 7
149 Explosive and Thermic Compositions or Charges 1 0 0 1 0 0 1 0 0 0 0 0 1 0 1 1 6
159 Concentrating Evaporators 0 0 2 0 0 0 1 0 1 0 0 0 0 1 1 0 6
201 Distillation: Processes, Thermolytic 0 1 0 1 0 0 0 0 0 0 1 1 0 0 0 2 6
212 Traversing Hoists 0 1 0 0 0 1 0 0 1 0 0 0 0 0 2 1 6
215 Bottles and Jars 0 0 0 0 0 0 0 0 0 0 1 0 1 2 2 0 6
256 Fences 0 0 0 1 0 0 0 0 3 1 0 0 0 1 0 0 6
301 Land Vehicles: Wheels and Axles 0 1 0 0 0 1 0 0 1 0 0 1 0 1 1 0 6
315 Electric Lamp and Discharge Devices: Systems 1 1 0 0 0 0 0 0 0 0 1 0 0 1 0 2 6
386 Motion Video Signal Processing for Recording or Reproducing 0 0 1 0 0 0 0 0 2 0 0 0 0 1 0 2 6
474 Endless Belt Power Transmission Systems or Components 0 0 0 0 0 0 3 0 0 0 0 0 0 1 0 2 6
475 Planetary Gear Transmission Systems or Components 0 0 0 0 0 0 0 0 0 0 0 0 3 0 3 0 6
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 2 0 0 1 0 0 0 1 0 0 0 0 1 0 1 0 6
056 Harvesters 1 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 5
059 Chain, Staple, and Horseshoe Making 0 0 0 0 0 0 1 0 1 1 0 1 0 0 0 1 5
144 Woodworking 1 1 0 0 0 1 0 0 0 0 1 0 1 0 0 0 5
227 Elongated-Member-Driving Apparatus 0 0 1 0 0 1 0 0 1 1 0 0 0 1 0 0 5
349 Liquid Crystal Cells, Elements and Systems 0 3 0 0 1 0 0 0 0 0 0 0 0 0 0 1 5
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 1 0 0 0 0 0 0 1 0 0 2 1 0 0 5
400 Typewriting Machines 1 0 0 0 2 0 0 1 0 0 0 0 1 0 0 0 5
406 Conveyors: Fluid Current 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 5
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 2 5
501 Compositions: Ceramic 0 2 0 0 0 0 0 0 0 0 0 0 1 1 0 1 5
057 Textiles: Spinning, Twisting, and Twining 0 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 4
112 Sewing 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 4
177 Weighing Scales 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 4
190 Trunks and Hand-Carried Luggage 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 1 4
192 Clutches and Power-Stop Control 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 4
194 Check-Actuated Control Mechanisms 1 0 0 0 0 0 0 0 0 1 0 0 0 0 2 0 4
236 Automatic Temperature and Humidity Regulation 0 1 2 0 0 0 0 0 0 0 0 1 0 0 0 0 4
368 Horology: Time Measuring Systems or Devices 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 4
452 Butchering 1 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 4
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 1 4
027 Undertaking 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 3
065 Glass Manufacturing 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 3
071 Chemistry: Fertilizers 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 3
091 Motors: Expansible Chamber Type 0 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3
100 Presses 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3
125 Stone Working 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 3
140 Wireworking 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 3
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 3
191 Electricity: Transmission To Vehicles 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 0 3
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 3
238 Railways: Surface Track 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 3
249 Static Molds 1 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 3
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 1 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 3
007 Compound Hand Tools 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 2
028 Textiles: Manufacturing 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 2
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2
168 Farriery 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 2
232 Deposit and Collection Receptacles 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 2
279 Chucks or Sockets 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 2
283 Printed Matter 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
289 Knots and Knot Tying 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2
298 Land Vehicles: Dumping 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 2
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 2
355 Photocopying 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2
388 Electricity: Motor Control Systems 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2
420 Alloys or Metallic Compositions 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2
450 Foundation Garments 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2
720 Dynamic Optical Information Storage or Retrieval 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2
012 Boot and Shoe Making 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
014 Bridges 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
038 Textiles: Ironing or Smoothing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
068 Textiles: Fluid Treating Apparatus 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
086 Ammunition and Explosive-Charge Making 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
105 Railway Rolling Stock 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
109 Safes, Bank Protection, or a Related Device 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
127 Sugar, Starch, and Carbohydrates 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
131 Tobacco 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
150 Purses, Wallets, and Protective Covers 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
186 Merchandising 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
225 Severing by Tearing or Breaking 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
231 Whips and Whip Apparatus 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
246 Railway Switches and Signals 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
260 Chemistry of Carbon Compounds 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
293 Vehicle Fenders 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
322 Electricity: Single Generator Systems 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
330 Amplifiers 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
338 Electrical Resistors 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
352 Optics: Motion Pictures 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
373 Industrial Electric Heating Furnaces 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
399 Electrophotography 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
413 Sheet Metal Container Making 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
462 Books, Strips, and Leaves for Manifolding 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
483 Tool Changing 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
492 Roll or Roller 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
512 Perfume Compositions 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 1767 1778 1734 1678 1628 1460 1781 1611 1616 1619 2190 2173 2349 2655 2972 3186 32197


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