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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

Boston-Cambridge-Quincy, MA-NH

( 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) 228 299 278 319 259 226 247 238 236 272 353 371 464 628 615 749 5782
435 Chemistry: Molecular Biology and Microbiology 212 245 227 189 158 150 181 167 130 142 165 177 179 190 218 237 2967
370 Multiplex Communications 63 83 64 108 97 86 141 85 113 152 208 199 209 178 181 147 2114
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 52 53 56 57 79 67 111 105 101 108 165 198 188 171 224 212 1947
128 Surgery (includes Class 600) 116 100 104 113 114 56 78 55 42 50 115 146 129 173 163 162 1716
707 DP: Database and File Management or Data Structures (Data Processing) 36 39 62 78 63 45 83 72 62 97 157 151 162 154 192 196 1649
606 Surgery (instruments) 77 73 70 100 48 63 66 57 41 49 104 123 141 139 155 161 1467
250 Radiant Energy 31 45 52 66 95 58 107 67 115 138 129 101 118 121 115 99 1457
532 Organic Compounds (includes Classes 532-570) 62 61 77 63 59 58 96 52 71 75 86 87 129 138 131 116 1361
382 Image Analysis 53 75 42 39 54 36 51 49 52 47 73 61 117 95 118 85 1047
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 23 15 18 16 6 14 43 38 47 50 120 129 142 169 142 63 1035
604 Surgery (Medicators and Receptors) 40 38 42 78 45 36 45 39 33 41 84 82 107 96 94 87 987
455 Telecommunications 11 7 14 28 26 26 66 57 41 66 73 82 110 118 124 106 955
711 Memory (Electrical Computers and Digital Processing Systems) 43 48 53 60 63 46 35 43 61 55 69 50 64 82 94 89 955
345 Computer Graphics Processing and Selective Visual Display Systems 50 57 66 53 42 49 68 51 34 43 60 47 56 51 59 93 879
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 39 37 44 27 38 29 58 39 54 40 58 53 44 55 59 48 722
438 Semiconductor Device Manufacturing: Process 15 21 24 27 31 45 42 56 44 37 49 65 74 71 66 48 715
359 Optical: Systems and Elements 32 36 67 59 55 42 45 55 44 36 51 42 22 38 28 39 691
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 21 33 19 18 30 19 39 34 40 41 62 51 60 58 91 75 691
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 14 14 17 22 38 53 40 41 32 38 42 44 64 63 73 86 681
356 Optics: Measuring and Testing 33 21 25 48 37 31 29 34 42 41 49 52 61 51 45 57 656
717 DP: Software Development, Installation, and Management (Data Processing) 18 23 14 4 18 18 25 22 25 35 55 52 78 82 97 90 656
073 Measuring and Testing 32 31 40 43 34 41 49 48 46 41 33 46 29 38 51 48 650
375 Pulse or Digital Communications 25 14 22 23 23 21 29 47 50 35 54 57 62 58 52 61 633
726 Information Security 7 11 3 5 5 12 23 20 24 32 56 48 59 83 128 111 627
714 Error Detection/Correction and Fault Detection/Recovery 30 22 19 46 37 34 39 48 49 41 53 26 37 42 36 54 613
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 20 36 21 34 31 26 46 31 24 23 37 48 38 61 64 55 595
713 Support (Electrical Computers and Digital Processing Systems) 8 20 12 19 24 18 38 27 44 32 55 40 42 74 68 64 585
702 DP: Measuring, Calibrating, or Testing (Data Processing) 11 13 23 38 37 32 48 36 49 38 40 37 43 50 45 29 569
385 Optical Waveguides 15 25 37 59 50 58 53 59 36 25 25 23 17 24 29 26 561
324 Electricity: Measuring and Testing 19 32 33 32 34 39 36 28 43 39 33 32 37 45 40 31 553
340 Communications: Electrical 16 20 20 20 20 24 30 25 34 24 39 49 67 61 49 52 550
700 DP: Generic Control Systems or Specific Applications (Data Processing) 9 16 13 16 30 18 26 22 24 19 26 47 33 70 71 87 527
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 37 43 34 28 29 18 26 27 23 26 28 29 24 39 32 36 479
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 36 23 21 18 9 14 30 23 19 31 30 27 34 50 49 54 468
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 28 26 18 40 52 28 27 23 25 22 23 19 26 24 47 22 450
428 Stock Material or Miscellaneous Articles 47 31 32 43 35 25 21 23 18 22 19 27 20 23 27 34 447
378 X-Ray or Gamma Ray Systems or Devices 26 33 32 12 28 16 31 17 25 29 35 33 23 24 31 45 440
315 Electric Lamp and Discharge Devices: Systems 31 20 13 17 21 24 29 24 23 22 23 29 27 43 47 45 438
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 8 6 6 8 6 9 20 18 17 37 43 53 55 42 69 39 436
379 Telephonic Communications 17 13 24 29 43 32 35 28 13 9 19 24 30 43 38 34 431
348 Television 14 18 19 19 17 9 18 17 10 10 19 23 41 44 48 100 426
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 23 25 14 22 14 14 12 16 20 27 35 35 38 41 38 35 409
210 Liquid Purification or Separation 37 26 22 21 19 19 25 20 23 23 27 28 34 24 30 26 404
436 Chemistry: Analytical and Immunological Testing 15 13 21 22 21 17 15 14 19 17 31 43 42 36 34 27 387
381 Electrical Audio Signal Processing Systems and Devices 7 6 10 7 17 5 10 10 12 14 12 34 57 45 36 95 377
361 Electricity: Electrical Systems and Devices 24 13 27 28 21 20 16 16 19 22 17 28 20 28 35 29 363
607 Surgery: Light, Thermal, and Electrical Application 8 16 20 17 18 10 16 15 11 13 17 23 30 33 57 42 346
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 21 27 23 11 5 13 12 12 14 11 23 30 27 32 26 36 323
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 19 19 24 19 14 15 20 17 10 18 16 18 20 30 28 24 311
427 Coating Processes 17 14 14 23 9 13 14 11 12 12 13 19 29 28 27 33 288
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 16 21 18 26 18 15 14 11 13 15 13 24 29 16 13 24 286
341 Coded Data Generation or Conversion 17 14 12 22 17 14 24 22 22 15 16 16 13 24 15 19 282
706 DP: Artificial Intelligence (Data Processing) 1 5 5 8 6 5 14 13 12 22 24 30 32 38 33 34 282
362 Illumination 10 11 9 11 6 7 7 17 10 19 24 23 26 40 32 27 279
219 Electric Heating 20 16 28 25 29 23 16 13 6 12 19 13 18 15 20 4 277
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 17 22 18 21 18 17 15 10 8 8 19 22 14 13 24 21 267
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 19 20 16 15 26 17 15 13 10 13 16 9 12 15 19 22 257
439 Electrical Connectors 25 14 9 15 11 15 26 24 18 15 15 14 6 11 16 21 255
473 Games Using Tangible Projectile 11 16 13 14 11 13 11 19 12 17 18 19 13 16 17 26 246
372 Coherent Light Generators 12 11 14 21 29 18 15 8 12 13 16 9 8 14 16 23 239
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 6 5 9 15 9 7 7 10 5 8 17 13 10 31 36 48 236
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 5 5 6 5 7 8 12 7 10 12 13 23 26 25 32 38 234
330 Amplifiers 5 9 17 16 11 2 17 13 8 15 26 11 11 25 24 20 230
204 Chemistry: Electrical and Wave Energy 16 20 16 6 9 15 8 8 12 10 17 9 22 19 20 22 229
313 Electric Lamp and Discharge Devices 12 17 16 21 19 11 17 15 13 8 15 18 16 13 10 8 229
725 Interactive Video Distribution Systems 2 4 3 2 5 1 5 5 6 2 10 14 15 32 59 62 227
310 Electrical Generator or Motor Structure 12 18 11 7 15 21 9 13 9 17 18 16 11 13 21 13 224
463 Amusement Devices: Games 2 2 3 3 3 1 1 1 7 5 18 24 29 42 53 30 224
029 Metal Working 10 17 20 20 16 15 17 8 7 5 8 14 15 17 18 15 222
101 Printing 29 23 25 30 34 11 17 2 4 5 5 4 10 8 8 3 218
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 5 8 7 9 10 7 11 17 14 11 26 23 22 16 19 13 218
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 16 12 14 18 14 12 11 11 5 5 13 11 13 15 15 19 204
307 Electrical Transmission or Interconnection Systems 3 3 4 4 4 6 9 9 5 12 12 16 15 41 36 24 203
398 Optical Communications 5 6 14 13 6 10 13 9 12 17 11 27 16 15 14 13 201
036 Boots, Shoes, and Leggings 14 6 6 9 8 6 16 8 23 12 15 7 16 17 16 15 194
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 3 5 4 6 12 12 22 10 8 11 11 14 17 17 19 20 191
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 13 18 10 13 14 20 11 8 6 9 13 17 10 7 8 10 187
333 Wave Transmission Lines and Networks 5 8 10 21 16 12 14 13 6 10 18 11 4 3 5 18 174
137 Fluid Handling 13 13 7 10 16 10 14 6 2 3 6 10 7 19 19 18 173
380 Cryptography 7 8 4 1 3 6 10 16 11 21 12 10 11 20 18 13 171
060 Power Plants 4 12 10 8 12 11 15 8 10 8 12 7 11 12 13 14 167
343 Communications: Radio Wave Antennas 10 13 11 10 8 7 12 13 12 8 12 7 8 9 14 13 167
174 Electricity: Conductors and Insulators 8 14 15 10 15 14 8 7 14 8 6 12 9 5 8 9 162
002 Apparel 13 15 11 12 7 8 8 2 4 5 12 15 10 19 10 10 161
052 Static Structures (e.g., Buildings) 9 15 13 12 8 8 7 5 4 6 11 9 13 8 15 18 161
358 Facsimile and Static Presentation Processing 14 12 11 8 6 7 14 7 5 6 5 14 12 11 11 10 153
062 Refrigeration 7 12 15 13 14 9 8 6 6 2 4 15 11 7 10 9 148
414 Material or Article Handling 14 10 12 7 6 3 5 5 4 6 7 9 14 18 13 14 147
363 Electric Power Conversion Systems 11 13 11 12 4 9 7 9 7 13 4 9 4 11 10 8 142
423 Chemistry of Inorganic Compounds 12 9 6 6 4 9 11 7 8 8 8 14 5 12 9 14 142
280 Land Vehicles 12 9 15 13 4 5 13 9 4 6 9 7 5 7 7 10 135
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 7 12 22 22 4 4 0 1 3 1 1 9 2 5 11 31 135
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 1 4 6 3 2 3 11 8 12 11 10 11 8 19 17 9 135
708 Arithmetic Processing and Calculating (Electrical Computers) 13 7 8 8 4 8 16 8 12 5 5 9 9 12 5 4 133
084 Music 6 8 7 3 7 3 5 5 12 12 15 14 12 7 6 9 131
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 5 9 11 11 8 6 10 7 10 12 10 3 5 6 7 10 130
252 Compositions 5 7 4 3 9 3 8 4 6 7 7 6 16 14 12 18 129
206 Special Receptacle or Package 10 8 4 13 4 9 7 3 5 5 8 13 8 8 13 10 128
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 4 10 7 11 4 5 7 2 6 8 5 9 10 12 12 12 124
248 Supports (e.g., for holding articles, etc.) 15 7 10 9 5 6 3 3 1 6 7 11 16 3 11 11 124
015 Brushing, Scrubbing, and General Cleaning 10 3 9 10 6 3 1 3 6 4 3 8 10 22 14 10 122
318 Electricity: Motive Power Systems 9 4 7 6 9 7 5 10 7 5 4 8 11 8 18 2 120
323 Electricity: Power Supply or Regulation Systems 6 4 3 6 4 4 5 3 6 5 7 9 16 16 14 11 119
005 Beds 2 4 0 9 5 9 4 5 5 8 10 11 12 11 14 9 118
222 Dispensing (apparatus and process) 8 10 8 4 8 5 6 5 2 3 7 6 12 11 11 12 118
434 Education and Demonstration 13 8 8 7 7 6 5 3 5 2 5 4 7 15 8 11 114
123 Internal-Combustion Engines 4 5 5 5 8 7 10 11 14 2 9 6 4 6 12 5 113
030 Cutlery 9 9 6 4 3 7 7 7 4 3 9 8 6 12 7 10 111
415 Rotary Kinetic Fluid Motors or Pumps 4 8 16 11 7 7 4 3 5 1 9 3 16 7 3 7 111
367 Communications, Electrical: Acoustic Wave Systems and Devices 4 7 3 3 4 7 2 8 8 8 11 8 12 9 6 10 110
106 Compositions: Coating or Plastic 8 7 7 10 13 8 6 5 1 2 9 8 6 7 7 5 109
320 Electricity: Battery or Capacitor Charging or Discharging 6 4 9 4 1 1 3 3 5 3 10 16 6 9 10 18 108
482 Exercise Devices 9 5 6 2 5 4 7 4 3 4 8 17 7 2 8 17 108
118 Coating Apparatus 12 10 7 6 8 4 6 5 6 3 7 8 9 5 6 5 107
351 Optics: Eye Examining, Vision Testing and Correcting 5 5 2 8 3 5 3 2 14 2 7 9 7 10 12 12 106
347 Incremental Printing of Symbolic Information 13 6 5 9 5 7 7 5 14 1 8 4 7 6 2 4 103
365 Static Information Storage and Retrieval 2 2 3 11 5 3 8 9 5 3 8 6 10 8 6 10 99
426 Food or Edible Material: Processes, Compositions, and Products 6 8 6 10 7 3 6 7 3 4 8 1 2 8 6 14 99
451 Abrading 5 6 9 8 3 5 4 1 7 2 4 10 2 9 9 12 96
136 Batteries: Thermoelectric and Photoelectric 4 6 2 2 3 2 0 5 3 3 9 8 7 8 15 16 93
216 Etching a Substrate: Processes 5 2 2 3 5 5 1 5 8 3 6 5 13 6 13 11 93
297 Chairs and Seats 8 3 4 5 8 3 5 1 2 2 9 8 9 10 9 6 92
042 Firearms 0 2 3 6 4 0 3 5 2 2 13 10 13 10 9 7 89
251 Valves and Valve Actuation 8 4 4 6 9 11 9 4 6 0 4 2 8 4 3 6 88
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 5 8 1 12 7 3 2 8 3 0 3 4 6 8 5 11 86
433 Dentistry 6 10 10 6 6 2 4 2 4 2 2 4 4 9 6 6 83
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 9 3 1 5 4 3 6 6 6 4 8 6 10 3 5 3 82
416 Fluid Reaction Surfaces (i.e., Impellers) 7 13 7 11 4 7 4 4 4 2 3 3 5 2 4 2 82
239 Fluid Sprinkling, Spraying, and Diffusing 4 5 2 4 5 8 6 6 2 2 6 8 3 9 6 4 80
040 Card, Picture, or Sign Exhibiting 7 2 4 5 9 3 3 0 6 3 7 4 6 10 4 6 79
417 Pumps 6 7 5 6 2 1 7 2 3 0 4 7 10 5 9 4 78
601 Surgery: Kinesitherapy 4 2 1 5 2 2 0 3 3 4 4 6 7 10 11 14 78
244 Aeronautics and Astronautics 2 8 3 15 1 4 3 3 2 0 3 7 4 5 7 8 75
220 Receptacles 3 3 1 3 2 3 2 2 1 6 8 8 5 11 8 7 73
271 Sheet Feeding or Delivering 9 8 6 14 7 4 3 3 1 3 1 2 4 7 1 0 73
326 Electronic Digital Logic Circuitry 2 3 6 4 3 4 4 7 5 2 11 3 4 7 2 6 73
360 Dynamic Magnetic Information Storage or Retrieval 11 2 4 7 3 4 5 3 7 5 3 2 2 3 7 4 72
602 Surgery: Splint, Brace, or Bandage 4 2 3 1 5 1 1 2 5 6 8 6 8 7 9 3 71
114 Ships 6 1 1 3 5 8 2 8 5 2 4 3 3 6 5 7 69
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 1 1 1 0 0 2 0 1 2 10 8 9 5 11 12 64
180 Motor Vehicles 3 2 1 5 3 0 2 1 7 5 5 7 7 7 6 3 64
331 Oscillators 3 5 2 3 7 4 1 9 7 3 6 2 4 1 3 4 64
374 Thermal Measuring and Testing 5 5 7 4 4 8 6 3 3 1 3 0 2 2 5 6 64
095 Gas Separation: Processes 3 0 6 4 7 2 6 1 5 1 3 9 5 5 2 4 63
119 Animal Husbandry 7 3 6 5 3 5 3 3 5 2 3 6 4 0 6 2 63
227 Elongated-Member-Driving Apparatus 3 3 7 4 8 6 0 0 1 5 5 7 3 7 3 1 63
273 Amusement Devices: Games 7 3 4 2 5 1 3 8 9 5 2 2 2 3 3 0 59
277 Seal for a Joint or Juncture 9 8 10 1 3 2 1 1 1 4 6 1 1 5 2 4 59
369 Dynamic Information Storage or Retrieval 5 5 3 8 2 2 2 3 5 0 3 6 2 7 2 4 59
024 Buckles, Buttons, Clasps, Etc. 14 5 5 4 2 1 1 3 3 3 1 4 5 3 1 3 58
033 Geometrical Instruments 3 5 1 5 2 2 5 4 2 3 5 5 1 6 3 6 58
290 Prime-Mover Dynamo Plants 2 2 4 1 0 1 4 5 4 4 1 2 5 10 6 7 58
165 Heat Exchange 4 6 6 5 8 6 2 4 3 0 1 2 4 2 3 1 57
099 Foods and Beverages: Apparatus 1 3 1 7 4 2 1 3 3 3 4 5 5 6 3 5 56
160 Flexible or Portable Closure, Partition, or Panel 4 4 5 3 4 4 6 3 0 4 3 2 2 3 7 2 56
396 Photography 8 6 2 7 4 0 0 1 4 4 8 4 2 1 3 0 54
053 Package Making 2 1 1 4 4 8 5 2 8 1 1 4 3 5 1 3 53
366 Agitating (e.g., of articles and materials) 2 4 1 3 5 3 1 2 4 1 3 5 2 5 8 4 53
386 Motion Video Signal Processing for Recording or Reproducing 6 0 2 2 3 6 2 2 0 2 3 2 3 4 9 7 53
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 3 0 2 4 5 5 2 4 4 5 1 4 0 4 5 4 52
336 Inductor Devices 1 1 4 6 5 1 6 4 2 2 3 3 3 4 3 3 51
004 Baths, Closets, Sinks, and Spittoons 2 6 8 2 2 4 4 3 1 2 3 3 3 1 3 3 50
083 Cutting 6 4 2 4 5 2 3 2 3 2 3 1 2 1 3 7 50
134 Cleaning and Liquid Contact with Solids 4 3 4 7 4 1 1 2 1 2 1 3 5 3 3 6 50
349 Liquid Crystal Cells, Elements and Systems 1 2 1 11 6 8 1 1 2 3 4 2 3 3 0 2 50
055 Gas Separation 4 3 3 3 3 3 0 2 0 3 3 7 4 5 4 2 49
089 Ordnance 0 0 0 2 2 2 0 1 2 2 1 7 9 7 4 9 48
181 Acoustics 5 2 4 3 0 0 2 1 0 5 0 4 5 6 2 7 46
228 Metal Fusion Bonding 3 5 6 3 1 0 3 2 1 1 3 2 6 5 2 3 46
505 Superconductor Technology: Apparatus, Material, Process 7 6 7 2 1 0 0 2 0 0 1 2 4 4 6 4 46
074 Machine Element or Mechanism 6 9 0 4 2 4 0 5 1 0 0 0 7 1 2 4 45
241 Solid Material Comminution or Disintegration 1 4 1 2 0 1 0 3 1 3 6 5 2 5 5 6 45
294 Handling: Hand and Hoist-Line Implements 1 1 0 4 0 0 1 4 3 2 4 3 6 4 5 7 45
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 2 2 3 3 9 1 2 1 2 8 5 3 2 0 1 1 45
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 3 3 5 7 6 2 4 1 2 1 3 2 1 4 0 0 44
494 Imperforate Bowl: Centrifugal Separators 5 2 1 6 3 1 5 1 3 3 2 2 3 2 2 3 44
070 Locks 3 5 7 8 2 2 0 0 1 0 0 3 5 3 1 1 41
224 Package and Article Carriers 5 1 8 0 2 3 1 2 0 2 3 0 3 3 3 4 40
270 Sheet-Material Associating 0 0 2 0 2 0 0 0 0 8 5 10 4 6 3 0 40
096 Gas Separation: Apparatus 1 4 1 2 2 1 2 1 1 1 0 0 4 6 7 6 39
162 Paper Making and Fiber Liberation 2 0 1 0 0 0 4 2 1 0 2 7 6 4 6 4 39
353 Optics: Image Projectors 0 1 1 5 10 1 6 3 1 2 2 2 2 0 1 2 39
285 Pipe Joints or Couplings 2 2 7 2 1 1 5 1 4 1 2 3 1 0 2 4 38
198 Conveyors: Power-Driven 10 2 1 0 1 5 1 1 3 0 2 2 0 2 2 4 36
200 Electricity: Circuit Makers and Breakers 3 2 3 2 2 7 2 3 1 1 1 3 1 2 1 2 36
392 Electric Resistance Heating Devices 5 6 4 1 2 1 3 4 0 0 1 2 3 0 2 2 36
440 Marine Propulsion 7 4 0 2 0 0 2 2 1 2 2 3 1 4 3 3 36
102 Ammunition and Explosives 0 0 1 2 2 7 4 1 2 4 3 1 2 2 3 1 35
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 1 5 4 6 3 1 2 0 0 1 5 0 1 4 2 0 35
126 Stoves and Furnaces 3 4 1 0 0 2 1 1 3 0 4 3 4 4 2 2 34
431 Combustion 9 5 1 3 3 1 0 0 2 0 1 1 1 0 3 4 34
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 2 5 0 4 2 2 1 0 3 1 2 1 1 2 3 4 33
148 Metal Treatment 3 2 4 2 2 2 0 1 0 3 2 1 3 4 4 0 33
211 Supports: Racks 1 4 3 4 2 0 2 5 1 1 1 0 1 3 2 3 33
242 Winding, Tensioning, or Guiding 2 5 4 2 4 2 4 1 2 0 0 0 2 2 1 2 33
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 2 0 0 1 2 2 3 2 1 2 8 3 2 4 0 1 33
454 Ventilation 2 3 1 2 3 3 2 2 0 1 1 2 4 3 4 0 33
138 Pipes and Tubular Conduits 3 1 0 0 3 4 1 1 0 3 2 4 0 2 6 2 32
182 Fire Escape, Ladder, or Scaffold 1 1 2 3 1 3 2 2 0 2 0 1 3 5 2 4 32
296 Land Vehicles: Bodies and Tops 2 5 2 3 4 1 4 2 2 1 4 0 1 1 0 0 32
401 Coating Implements with Material Supply 2 7 7 0 3 3 3 0 0 0 0 0 3 2 1 1 32
446 Amusement Devices: Toys 2 5 5 2 3 1 2 1 2 0 1 0 1 1 4 2 32
034 Drying and Gas or Vapor Contact with Solids 3 4 5 1 2 4 3 2 3 0 0 0 1 0 1 1 30
132 Toilet 7 2 3 1 3 1 2 1 1 1 0 1 2 2 1 2 30
368 Horology: Time Measuring Systems or Devices 2 2 4 4 2 2 3 6 0 1 1 0 2 1 0 0 30
043 Fishing, Trapping, and Vermin Destroying 2 1 1 2 1 6 3 2 0 1 1 3 3 0 2 0 28
221 Article Dispensing 3 2 1 3 3 1 4 1 1 1 0 0 1 1 1 3 26
501 Compositions: Ceramic 2 1 1 1 1 4 2 1 1 1 4 1 4 1 0 1 26
585 Chemistry of Hydrocarbon Compounds 0 1 1 1 0 0 0 0 2 0 4 2 3 6 0 6 26
405 Hydraulic and Earth Engineering 4 0 2 0 0 2 3 2 2 2 0 0 0 4 1 3 25
445 Electric Lamp or Space Discharge Component or Device Manufacturing 2 1 1 3 3 3 2 4 0 2 1 1 1 1 0 0 25
072 Metal Deforming 2 4 4 2 0 0 3 0 1 0 0 2 1 4 0 1 24
049 Movable or Removable Closures 1 1 2 1 1 1 4 1 1 2 1 2 0 0 4 1 23
169 Fire Extinguishers 0 3 2 1 2 1 1 1 0 0 3 1 1 3 2 2 23
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 1 0 1 4 2 0 1 0 0 1 1 3 2 4 1 22
065 Glass Manufacturing 0 1 1 6 4 0 1 0 0 0 2 0 0 1 2 4 22
215 Bottles and Jars 1 0 2 1 1 1 2 1 1 0 1 2 1 2 2 4 22
355 Photocopying 2 2 2 2 1 1 1 0 3 2 2 0 0 1 3 0 22
403 Joints and Connections 3 4 4 3 1 0 2 0 0 0 0 1 1 0 1 2 22
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 1 2 1 3 1 0 2 0 4 1 1 1 0 2 1 2 22
048 Gas: Heating and Illuminating 1 0 0 1 0 0 2 0 4 1 0 3 1 3 2 3 21
164 Metal Founding 4 5 4 2 2 2 0 0 0 0 0 0 0 0 1 1 21
209 Classifying, Separating, and Assorting Solids 2 1 1 1 1 1 1 3 0 1 0 0 2 3 3 1 21
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 0 4 1 3 2 0 3 0 0 1 1 1 1 2 0 0 19
081 Tools 2 2 1 1 2 3 2 1 2 1 0 0 0 1 1 0 19
135 Tent, Canopy, Umbrella, or Cane 2 2 1 0 2 0 0 0 1 0 2 5 1 0 1 2 19
261 Gas and Liquid Contact Apparatus 5 1 0 1 0 2 0 0 1 0 1 0 1 3 2 2 19
419 Powder Metallurgy Processes 2 0 1 3 1 0 2 1 1 1 1 0 2 0 1 3 19
292 Closure Fasteners 0 2 0 2 1 3 1 0 3 1 0 1 3 1 0 0 18
441 Buoys, Rafts, and Aquatic Devices 0 0 1 3 2 0 2 1 1 0 0 2 1 0 2 3 18
051 Abrasive Tool Making Process, Material, or Composition 3 1 0 3 0 0 0 0 0 1 0 1 0 3 2 3 17
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 1 0 0 1 3 1 1 1 0 2 1 1 0 3 0 2 17
237 Heating Systems 2 7 1 1 0 1 1 1 0 0 0 0 0 0 1 2 17
312 Supports: Cabinet Structure 0 2 1 0 1 1 0 0 2 1 0 4 1 0 1 3 17
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 3 1 0 0 1 1 2 0 0 0 0 1 2 2 0 4 17
044 Fuel and Related Compositions 1 1 1 0 3 0 0 0 1 1 0 1 2 3 1 1 16
188 Brakes 2 3 2 1 0 0 0 2 0 0 1 0 1 0 4 0 16
283 Printed Matter 2 4 4 0 1 0 0 0 1 0 0 1 1 1 0 1 16
384 Bearings 2 0 5 2 0 0 1 1 0 0 1 0 0 0 2 2 16
404 Road Structure, Process, or Apparatus 1 0 0 1 1 1 0 1 0 3 1 1 0 3 3 0 16
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 1 0 0 0 0 0 0 2 1 2 3 1 2 3 1 0 16
028 Textiles: Manufacturing 0 0 3 1 1 1 1 5 1 0 1 1 0 0 0 0 15
047 Plant Husbandry 1 1 0 1 2 1 0 1 0 1 0 1 2 1 2 1 15
104 Railways 1 2 1 1 0 0 1 0 2 0 0 1 0 1 2 3 15
267 Spring Devices 1 0 0 2 1 1 1 2 1 0 2 0 0 0 3 1 15
082 Turning (e.g., for metal working) 0 1 0 0 0 0 1 1 2 2 2 2 2 0 1 0 14
108 Horizontally Supported Planar Surfaces 0 1 2 2 2 0 0 0 1 0 2 1 0 0 0 3 14
175 Boring or Penetrating the Earth 1 0 0 1 1 0 0 1 1 0 2 3 2 1 1 0 14
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 1 0 3 1 1 1 3 0 1 0 1 0 0 0 1 14
418 Rotary Expansible Chamber Devices 0 0 0 1 2 2 0 4 0 0 0 0 1 0 2 1 13
056 Harvesters 2 0 0 2 0 0 1 0 0 0 1 3 0 0 1 2 12
122 Liquid Heaters and Vaporizers 0 0 2 1 3 0 1 0 1 0 0 0 1 0 2 1 12
177 Weighing Scales 1 2 0 2 0 3 0 0 0 0 0 0 0 0 0 4 12
066 Textiles: Knitting 4 2 0 0 2 3 0 0 0 0 0 0 0 0 0 0 11
112 Sewing 0 3 1 1 0 2 2 0 1 1 0 0 0 0 0 0 11
229 Envelopes, Wrappers, and Paperboard Boxes 0 0 0 1 0 1 1 0 0 0 0 0 0 3 3 2 11
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 3 0 0 0 1 0 0 0 0 0 1 1 2 2 1 11
076 Metal Tools and Implements, Making 0 0 0 1 0 1 0 2 0 1 1 1 0 2 0 1 10
116 Signals and Indicators 1 0 2 0 1 1 1 1 0 0 0 1 0 0 0 2 10
383 Flexible Bags 1 1 0 0 0 0 1 0 0 2 1 1 2 1 0 0 10
400 Typewriting Machines 2 1 1 0 0 1 1 0 0 0 0 0 0 1 3 0 10
472 Amusement Devices 0 1 1 1 0 0 0 0 1 0 0 0 1 2 2 1 10
203 Distillation: Processes, Separatory 0 0 1 0 0 0 0 0 0 1 0 0 1 3 1 2 9
269 Work Holders 0 0 0 1 0 0 0 1 0 0 0 2 0 1 4 0 9
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 1 0 1 0 1 0 1 0 0 1 1 0 0 2 0 1 9
450 Foundation Garments 0 0 0 0 1 1 1 0 2 0 1 1 0 1 1 0 9
475 Planetary Gear Transmission Systems or Components 0 0 1 0 2 0 1 1 0 1 0 0 0 2 0 1 9
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 1 1 4 1 0 0 0 0 0 0 0 2 0 0 9
063 Jewelry 0 0 0 0 0 0 0 1 1 0 2 0 1 2 1 0 8
068 Textiles: Fluid Treating Apparatus 0 2 0 0 0 0 0 0 0 3 0 0 0 1 0 2 8
110 Furnaces 0 0 0 0 2 1 0 0 0 1 1 0 1 0 2 0 8
236 Automatic Temperature and Humidity Regulation 0 1 0 0 3 0 0 2 0 0 0 2 0 0 0 0 8
338 Electrical Resistors 0 1 1 0 2 0 0 0 1 0 1 0 1 0 1 0 8
408 Cutting by Use of Rotating Axially Moving Tool 0 0 0 4 0 0 0 0 0 1 0 0 1 0 1 1 8
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 1 1 2 0 0 0 0 1 0 1 0 1 0 0 0 8
191 Electricity: Transmission To Vehicles 0 0 1 0 1 1 0 0 0 0 0 0 1 0 2 1 7
192 Clutches and Power-Stop Control 0 1 1 1 1 1 0 0 0 0 0 0 1 0 1 0 7
226 Advancing Material of Indeterminate Length 1 2 2 0 0 1 0 0 0 0 0 0 0 0 0 1 7
256 Fences 0 0 0 0 0 1 1 1 0 2 0 0 1 0 0 1 7
406 Conveyors: Fluid Current 0 0 0 0 0 0 0 1 0 1 0 1 1 1 2 0 7
432 Heating 0 3 2 0 0 0 0 0 0 0 0 0 1 1 0 0 7
208 Mineral Oils: Processes and Products 0 0 1 0 0 0 0 1 0 0 0 3 0 0 1 0 6
225 Severing by Tearing or Breaking 0 0 1 1 0 1 0 1 0 0 1 0 1 0 0 0 6
332 Modulators 1 0 0 1 0 1 0 0 0 0 2 0 0 0 1 0 6
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 2 0 1 1 0 1 1 0 0 0 0 0 0 0 6
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 0 0 0 0 0 0 1 0 0 1 1 1 1 0 1 6
409 Gear Cutting, Milling, or Planing 0 1 1 2 0 1 0 0 1 0 0 0 0 0 0 0 6
412 Bookbinding: Process and Apparatus 1 0 0 1 0 1 0 0 0 0 1 0 0 1 0 1 6
507 Earth Boring, Well Treating, and Oil Field Chemistry 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 2 6
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 0 0 0 2 0 1 0 0 0 1 0 0 0 0 1 6
038 Textiles: Ironing or Smoothing 0 1 0 0 0 0 0 0 0 0 0 0 1 3 0 0 5
100 Presses 0 1 0 0 0 0 1 0 0 1 0 0 1 0 0 1 5
105 Railway Rolling Stock 0 0 0 0 0 0 0 0 1 0 0 0 1 0 3 0 5
125 Stone Working 1 0 1 0 0 0 0 0 0 0 0 1 1 1 0 0 5
139 Textiles: Weaving 1 0 0 0 1 0 1 1 0 1 0 0 0 0 0 0 5
140 Wireworking 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2 1 5
193 Conveyors, Chutes, Skids, Guides, and Ways 1 0 1 1 0 0 2 0 0 0 0 0 0 0 0 0 5
223 Apparel Apparatus 0 1 0 0 1 0 0 0 0 1 0 0 2 0 0 0 5
232 Deposit and Collection Receptacles 1 0 0 0 0 0 1 0 2 0 0 0 0 0 0 1 5
246 Railway Switches and Signals 0 1 1 0 0 0 1 0 0 0 0 0 0 1 0 1 5
293 Vehicle Fenders 0 0 1 0 0 0 0 0 0 0 0 1 1 0 0 2 5
322 Electricity: Single Generator Systems 0 2 1 0 0 0 1 0 0 0 0 0 0 0 0 1 5
476 Friction Gear Transmission Systems or Components 2 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5
492 Roll or Roller 0 1 0 0 1 0 0 0 0 0 0 1 1 1 0 0 5
504 Plant Protecting and Regulating Compositions 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5
588 Hazardous or Toxic Waste Destruction or Containment 1 2 0 0 0 0 0 0 0 0 1 1 0 0 0 0 5
087 Textiles: Braiding, Netting, and Lace Making 1 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 4
092 Expansible Chamber Devices 0 0 0 0 0 0 0 0 2 0 1 0 0 1 0 0 4
124 Mechanical Guns and Projectors 0 0 0 1 1 0 0 0 1 0 0 0 0 0 1 0 4
172 Earth Working 0 0 1 2 0 0 0 0 0 0 0 1 0 0 0 0 4
184 Lubrication 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 4
185 Motors: Spring, Weight, or Animal Powered 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 4
212 Traversing Hoists 2 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 4
249 Static Molds 1 0 0 0 2 0 0 0 0 0 0 1 0 0 0 0 4
399 Electrophotography 0 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 4
407 Cutters, for Shaping 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 4
410 Freight Accommodation On Freight Carrier 0 0 0 0 0 0 0 2 0 1 0 0 0 0 1 0 4
452 Butchering 1 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 4
474 Endless Belt Power Transmission Systems or Components 2 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 4
012 Boot and Shoe Making 0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3
026 Textiles: Cloth Finishing 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 3
054 Harness for Working Animal 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 3
071 Chemistry: Fertilizers 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 3
091 Motors: Expansible Chamber Type 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 3
127 Sugar, Starch, and Carbohydrates 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 3
131 Tobacco 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 3
173 Tool Driving or Impacting 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 3
190 Trunks and Hand-Carried Luggage 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 3
202 Distillation: Apparatus 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3
300 Brush, Broom, and Mop Making 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 3
301 Land Vehicles: Wheels and Axles 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 3
329 Demodulators 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 3
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 3
477 Interrelated Power Delivery Controls, Including Engine Control 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3
007 Compound Hand Tools 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
014 Bridges 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2
037 Excavating 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 2
144 Woodworking 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 2
149 Explosive and Thermic Compositions or Charges 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2
150 Purses, Wallets, and Protective Covers 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 2
159 Concentrating Evaporators 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2
178 Telegraphy 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2
194 Check-Actuated Control Mechanisms 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 2
279 Chucks or Sockets 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2
281 Books, Strips, and Leaves 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 2
289 Knots and Knot Tying 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2
298 Land Vehicles: Dumping 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2
305 Wheel Substitutes for Land Vehicles 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2
352 Optics: Motion Pictures 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2
420 Alloys or Metallic Compositions 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 2
449 Bee Culture (propagating, raising, caring for bees) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2
453 Coin Handling 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 2
512 Perfume Compositions 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 2
720 Dynamic Optical Information Storage or Retrieval 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2
023 Chemistry: Physical Processes 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
057 Textiles: Spinning, Twisting, and Twining 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
059 Chain, Staple, and Horseshoe Making 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
086 Ammunition and Explosive-Charge Making 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
109 Safes, Bank Protection, or a Related Device 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
111 Planting 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
152 Resilient Tires and Wheels 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1
186 Merchandising 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
213 Railway Draft Appliances 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
234 Selective Cutting (e.g., Punching) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
266 Metallurgical Apparatus 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
295 Railway Wheels and Axles 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
346 Recorders 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
388 Electricity: Motor Control Systems 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
ALL ALL CLASSES 2972 3133 3103 3465 3195 2768 3461 3027 3039 3165 4330 4537 4986 5610 5913 5949 62653


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email: oeip@uspto.gov

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