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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 2009 - 2013 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

MARYLAND

( 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 2009 2010 2011 2012 2013 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 153 171 181 201 213 919
435 Chemistry: Molecular Biology and Microbiology 105 143 119 99 103 569
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 38 86 62 78 83 347
370 Multiplex Communications 36 51 48 52 49 236
455 Telecommunications 24 30 49 48 55 206
532 Organic Compounds (includes Classes 532-570) 36 28 39 44 28 175
128 Surgery (includes Class 600) 20 29 21 31 47 148
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 25 23 28 36 30 142
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 33 32 32 16 22 135
340 Communications: Electrical 39 23 23 24 23 132
382 Image Analysis 24 29 16 20 42 131
398 Optical Communications 22 20 24 15 18 99
726 Information Security 5 14 26 21 33 99
707 DP: Database and File Management or Data Structures (Data Processing) 9 18 15 22 31 95
356 Optics: Measuring and Testing 18 20 23 13 20 94
713 Support (Electrical Computers and Digital Processing Systems) 12 14 21 19 26 92
250 Radiant Energy 16 22 15 17 20 90
375 Pulse or Digital Communications 20 18 15 15 21 89
702 DP: Measuring, Calibrating, or Testing (Data Processing) 12 11 15 24 25 87
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 13 16 20 23 11 83
714 Error Detection/Correction and Fault Detection/Recovery 13 18 19 16 16 82
606 Surgery (instruments) 6 11 19 20 24 80
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 7 15 16 17 20 75
436 Chemistry: Analytical and Immunological Testing 14 22 14 13 11 74
073 Measuring and Testing 17 12 4 20 14 67
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 9 15 10 16 11 61
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 4 9 11 16 19 59
385 Optical Waveguides 12 14 9 9 12 56
604 Surgery (Medicators and Receptors) 9 11 13 9 12 54
706 DP: Artificial Intelligence (Data Processing) 7 8 12 18 8 53
089 Ordnance 5 9 11 12 13 50
438 Semiconductor Device Manufacturing: Process 7 17 13 9 4 50
102 Ammunition and Explosives 11 9 7 8 11 46
607 Surgery: Light, Thermal, and Electrical Application 6 8 8 12 12 46
324 Electricity: Measuring and Testing 6 10 10 9 8 43
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 6 8 6 14 9 43
359 Optical: Systems and Elements 5 7 9 9 10 40
244 Aeronautics and Astronautics 6 3 9 8 13 39
345 Computer Graphics Processing and Selective Visual Display Systems 8 7 6 8 10 39
725 Interactive Video Distribution Systems 5 9 5 10 10 39
002 Apparel 9 9 4 9 7 38
320 Electricity: Battery or Capacitor Charging or Discharging 7 9 10 9 3 38
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 7 15 4 5 7 38
173 Tool Driving or Impacting 9 5 2 9 12 37
700 DP: Generic Control Systems or Specific Applications (Data Processing) 7 5 8 9 8 37
428 Stock Material or Miscellaneous Articles 2 6 9 8 11 36
198 Conveyors: Power-Driven 9 6 11 5 4 35
310 Electrical Generator or Motor Structure 4 12 8 6 5 35
333 Wave Transmission Lines and Networks 9 11 7 4 4 35
379 Telephonic Communications 7 6 7 7 8 35
084 Music 9 6 7 5 7 34
380 Cryptography 6 6 6 3 12 33
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 8 10 6 3 6 33
348 Television 5 1 7 5 14 32
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 6 2 5 8 11 32
210 Liquid Purification or Separation 7 5 5 7 7 31
361 Electricity: Electrical Systems and Devices 6 9 8 1 7 31
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 7 7 6 5 6 31
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 6 7 10 3 4 30
227 Elongated-Member-Driving Apparatus 3 8 5 5 8 29
451 Abrading 10 3 6 3 7 29
029 Metal Working 5 7 6 5 5 28
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 7 3 4 3 11 28
252 Compositions 4 4 9 6 5 28
343 Communications: Radio Wave Antennas 3 7 9 6 3 28
362 Illumination 5 1 6 4 12 28
434 Education and Demonstration 3 3 0 10 12 28
473 Games Using Tangible Projectile 6 13 3 5 1 28
273 Amusement Devices: Games 3 7 3 3 11 27
423 Chemistry of Inorganic Compounds 3 11 1 2 10 27
060 Power Plants 5 7 2 6 6 26
119 Animal Husbandry 4 4 9 6 3 26
015 Brushing, Scrubbing, and General Cleaning 4 6 6 6 3 25
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 5 7 2 5 6 25
052 Static Structures (e.g., Buildings) 2 4 4 6 8 24
083 Cutting 5 4 5 4 6 24
248 Supports (e.g., for holding articles, etc.) 6 4 2 5 7 24
307 Electrical Transmission or Interconnection Systems 3 1 5 11 4 24
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 1 4 6 11 24
042 Firearms 2 4 4 5 8 23
114 Ships 4 5 7 3 3 22
326 Electronic Digital Logic Circuitry 3 6 7 4 2 22
149 Explosive and Thermic Compositions or Charges 1 6 5 3 6 21
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 5 6 2 1 6 20
280 Land Vehicles 2 3 6 4 5 20
367 Communications, Electrical: Acoustic Wave Systems and Devices 3 7 1 8 1 20
717 DP: Software Development, Installation, and Management (Data Processing) 1 5 5 4 5 20
239 Fluid Sprinkling, Spraying, and Diffusing 4 8 0 4 3 19
297 Chairs and Seats 4 6 4 4 1 19
378 X-Ray or Gamma Ray Systems or Devices 1 5 5 5 3 19
381 Electrical Audio Signal Processing Systems and Devices 1 4 2 7 5 19
482 Exercise Devices 5 10 0 2 2 19
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 5 3 5 3 3 19
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 1 3 5 5 4 18
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 2 0 10 6 18
204 Chemistry: Electrical and Wave Energy 3 6 4 3 2 18
463 Amusement Devices: Games 1 3 1 7 6 18
005 Beds 5 2 4 3 3 17
165 Heat Exchange 3 5 4 3 2 17
180 Motor Vehicles 3 5 3 3 3 17
408 Cutting by Use of Rotating Axially Moving Tool 9 6 0 0 2 17
033 Geometrical Instruments 4 4 1 4 3 16
241 Solid Material Comminution or Disintegration 4 1 3 5 3 16
372 Coherent Light Generators 4 1 5 4 2 16
427 Coating Processes 0 4 3 5 3 15
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 4 2 0 3 5 14
181 Acoustics 3 3 3 2 3 14
220 Receptacles 2 1 1 7 3 14
711 Memory (Electrical Computers and Digital Processing Systems) 5 1 1 3 4 14
004 Baths, Closets, Sinks, and Spittoons 0 2 4 3 4 13
030 Cutlery 2 3 5 1 2 13
043 Fishing, Trapping, and Vermin Destroying 1 6 2 2 2 13
062 Refrigeration 4 3 3 0 3 13
106 Compositions: Coating or Plastic 1 5 4 1 2 13
137 Fluid Handling 2 3 3 3 2 13
208 Mineral Oils: Processes and Products 1 2 5 3 2 13
290 Prime-Mover Dynamo Plants 1 1 4 4 3 13
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 2 1 3 3 4 13
206 Special Receptacle or Package 3 3 4 2 0 12
222 Dispensing (apparatus and process) 0 1 6 3 2 12
318 Electricity: Motive Power Systems 2 4 2 0 4 12
351 Optics: Eye Examining, Vision Testing and Correcting 3 2 2 3 2 12
426 Food or Edible Material: Processes, Compositions, and Products 2 3 3 2 2 12
036 Boots, Shoes, and Leggings 2 2 2 3 2 11
055 Gas Separation 2 4 1 2 2 11
132 Toilet 0 2 5 1 3 11
294 Handling: Hand and Hoist-Line Implements 3 1 1 0 6 11
405 Hydraulic and Earth Engineering 1 4 1 3 2 11
414 Material or Article Handling 5 2 1 2 1 11
475 Planetary Gear Transmission Systems or Components 3 3 0 2 3 11
708 Arithmetic Processing and Calculating (Electrical Computers) 2 1 0 2 6 11
081 Tools 1 1 3 3 2 10
095 Gas Separation: Processes 1 1 3 5 0 10
096 Gas Separation: Apparatus 3 0 2 4 1 10
296 Land Vehicles: Bodies and Tops 3 0 2 2 3 10
341 Coded Data Generation or Conversion 0 1 3 1 5 10
439 Electrical Connectors 0 2 1 1 6 10
602 Surgery: Splint, Brace, or Bandage 0 1 3 2 4 10
134 Cleaning and Liquid Contact with Solids 2 2 0 3 2 9
148 Metal Treatment 1 3 1 3 1 9
200 Electricity: Circuit Makers and Breakers 4 0 2 3 0 9
219 Electric Heating 2 0 3 2 2 9
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 4 1 4 9
279 Chucks or Sockets 1 4 3 1 0 9
315 Electric Lamp and Discharge Devices: Systems 1 1 2 3 2 9
374 Thermal Measuring and Testing 1 0 2 4 2 9
417 Pumps 1 2 3 2 1 9
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 1 2 3 3 9
601 Surgery: Kinesitherapy 2 0 3 1 3 9
047 Plant Husbandry 2 4 1 1 0 8
123 Internal-Combustion Engines 1 1 2 3 1 8
135 Tent, Canopy, Umbrella, or Cane 3 2 1 1 1 8
182 Fire Escape, Ladder, or Scaffold 1 0 2 4 1 8
209 Classifying, Separating, and Assorting Solids 1 4 0 2 1 8
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 1 0 0 3 4 8
108 Horizontally Supported Planar Surfaces 3 1 1 2 0 7
118 Coating Apparatus 2 1 1 0 3 7
124 Mechanical Guns and Projectors 1 0 1 1 4 7
136 Batteries: Thermoelectric and Photoelectric 0 2 0 3 2 7
144 Woodworking 3 1 1 2 0 7
174 Electricity: Conductors and Insulators 2 1 1 3 0 7
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 2 3 1 1 7
224 Package and Article Carriers 0 2 1 1 3 7
261 Gas and Liquid Contact Apparatus 1 2 0 3 1 7
358 Facsimile and Static Presentation Processing 2 1 2 1 1 7
396 Photography 1 2 2 1 1 7
404 Road Structure, Process, or Apparatus 2 1 1 2 1 7
446 Amusement Devices: Toys 0 4 1 1 1 7
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 2 3 0 1 1 7
048 Gas: Heating and Illuminating 2 1 0 1 2 6
056 Harvesters 2 2 0 1 1 6
074 Machine Element or Mechanism 1 2 0 1 2 6
216 Etching a Substrate: Processes 0 0 3 1 2 6
228 Metal Fusion Bonding 1 1 2 1 1 6
366 Agitating (e.g., of articles and materials) 3 0 0 2 1 6
452 Butchering 0 0 5 0 1 6
501 Compositions: Ceramic 2 0 2 2 0 6
588 Hazardous or Toxic Waste Destruction or Containment 3 2 0 0 1 6
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 2 2 1 0 1 6
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 2 3 0 1 0 6
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 2 1 1 0 2 6
014 Bridges 0 0 3 1 1 5
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 0 1 0 2 2 5
024 Buckles, Buttons, Clasps, Etc. 0 2 1 1 1 5
034 Drying and Gas or Vapor Contact with Solids 0 0 2 2 1 5
126 Stoves and Furnaces 0 1 3 0 1 5
188 Brakes 0 0 3 0 2 5
211 Supports: Racks 1 3 1 0 0 5
215 Bottles and Jars 0 0 1 1 3 5
229 Envelopes, Wrappers, and Paperboard Boxes 0 1 1 2 1 5
277 Seal for a Joint or Juncture 0 0 0 2 3 5
406 Conveyors: Fluid Current 1 0 2 1 1 5
433 Dentistry 1 0 1 2 1 5
440 Marine Propulsion 1 1 0 2 1 5
441 Buoys, Rafts, and Aquatic Devices 1 3 1 0 0 5
027 Undertaking 0 0 1 2 1 4
037 Excavating 1 0 2 0 1 4
040 Card, Picture, or Sign Exhibiting 1 0 1 2 0 4
053 Package Making 1 2 1 0 0 4
104 Railways 1 0 2 0 1 4
160 Flexible or Portable Closure, Partition, or Panel 0 1 1 0 2 4
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 3 1 0 0 4
269 Work Holders 0 1 1 2 0 4
292 Closure Fasteners 0 1 2 0 1 4
330 Amplifiers 0 1 1 0 2 4
386 Motion Video Signal Processing for Recording or Reproducing 0 0 0 1 3 4
392 Electric Resistance Heating Devices 0 2 1 1 0 4
415 Rotary Kinetic Fluid Motors or Pumps 1 0 1 1 1 4
450 Foundation Garments 1 1 1 0 1 4
477 Interrelated Power Delivery Controls, Including Engine Control 0 1 0 2 1 4
505 Superconductor Technology: Apparatus, Material, Process 0 1 0 0 3 4
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 1 1 2 0 4
086 Ammunition and Explosive-Charge Making 0 0 1 0 2 3
131 Tobacco 0 1 0 2 0 3
192 Clutches and Power-Stop Control 0 1 2 0 0 3
271 Sheet Feeding or Delivering 0 0 2 1 0 3
313 Electric Lamp and Discharge Devices 0 2 1 0 0 3
323 Electricity: Power Supply or Regulation Systems 0 1 1 1 0 3
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 0 1 1 0 3
353 Optics: Image Projectors 1 0 0 1 1 3
355 Photocopying 0 1 1 0 1 3
365 Static Information Storage and Retrieval 2 0 0 1 0 3
383 Flexible Bags 0 1 0 1 1 3
401 Coating Implements with Material Supply 0 0 0 1 2 3
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 0 1 0 1 3
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 0 2 1 3
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 2 1 3
454 Ventilation 0 0 2 0 1 3
007 Compound Hand Tools 0 0 0 0 2 2
065 Glass Manufacturing 2 0 0 0 0 2
066 Textiles: Knitting 0 2 0 0 0 2
070 Locks 1 0 0 1 0 2
092 Expansible Chamber Devices 0 0 0 2 0 2
099 Foods and Beverages: Apparatus 0 1 0 0 1 2
111 Planting 1 1 0 0 0 2
150 Purses, Wallets, and Protective Covers 0 1 0 0 1 2
152 Resilient Tires and Wheels 0 0 0 1 1 2
169 Fire Extinguishers 1 0 1 0 0 2
190 Trunks and Hand-Carried Luggage 0 0 0 0 2 2
193 Conveyors, Chutes, Skids, Guides, and Ways 1 1 0 0 0 2
221 Article Dispensing 0 1 0 0 1 2
223 Apparel Apparatus 0 0 2 0 0 2
232 Deposit and Collection Receptacles 1 0 1 0 0 2
242 Winding, Tensioning, or Guiding 1 0 0 0 1 2
251 Valves and Valve Actuation 0 1 1 0 0 2
285 Pipe Joints or Couplings 0 0 0 1 1 2
312 Supports: Cabinet Structure 0 2 0 0 0 2
331 Oscillators 1 0 0 1 0 2
347 Incremental Printing of Symbolic Information 0 2 0 0 0 2
368 Horology: Time Measuring Systems or Devices 1 0 0 0 1 2
410 Freight Accommodation On Freight Carrier 0 1 0 0 1 2
418 Rotary Expansible Chamber Devices 0 0 0 2 0 2
431 Combustion 0 1 1 0 0 2
474 Endless Belt Power Transmission Systems or Components 0 1 0 0 1 2
494 Imperforate Bowl: Centrifugal Separators 1 0 1 0 0 2
504 Plant Protecting and Regulating Compositions 1 0 0 1 0 2
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 0 0 0 0 1
023 Chemistry: Physical Processes 0 0 0 0 1 1
063 Jewelry 0 0 0 0 1 1
071 Chemistry: Fertilizers 0 0 0 0 1 1
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 1 0 0 1
091 Motors: Expansible Chamber Type 0 0 1 0 0 1
105 Railway Rolling Stock 0 0 0 1 0 1
109 Safes, Bank Protection, or a Related Device 0 0 1 0 0 1
112 Sewing 0 0 0 0 1 1
116 Signals and Indicators 0 0 1 0 0 1
125 Stone Working 0 1 0 0 0 1
157 Wheelwright Machines 0 0 0 1 0 1
162 Paper Making and Fiber Liberation 0 1 0 0 0 1
164 Metal Founding 0 0 0 0 1 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 1 0 0 0 1
191 Electricity: Transmission To Vehicles 0 0 0 0 1 1
201 Distillation: Processes, Thermolytic 1 0 0 0 0 1
213 Railway Draft Appliances 0 1 0 0 0 1
236 Automatic Temperature and Humidity Regulation 0 0 0 1 0 1
246 Railway Switches and Signals 0 0 0 1 0 1
249 Static Molds 0 1 0 0 0 1
270 Sheet-Material Associating 0 1 0 0 0 1
281 Books, Strips, and Leaves 0 0 0 0 1 1
283 Printed Matter 0 0 1 0 0 1
289 Knots and Knot Tying 0 0 0 1 0 1
293 Vehicle Fenders 0 0 0 1 0 1
336 Inductor Devices 0 1 0 0 0 1
349 Liquid Crystal Cells, Elements and Systems 0 0 0 1 0 1
360 Dynamic Magnetic Information Storage or Retrieval 0 1 0 0 0 1
363 Electric Power Conversion Systems 0 0 0 0 1 1
369 Dynamic Information Storage or Retrieval 0 1 0 0 0 1
373 Industrial Electric Heating Furnaces 0 1 0 0 0 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 0 1 1
384 Bearings 0 1 0 0 0 1
388 Electricity: Motor Control Systems 0 1 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 1 0 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 0 0 1 1
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 1 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 0 1 1
472 Amusement Devices 0 0 0 1 0 1
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 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
585 Chemistry of Hydrocarbon Compounds 0 0 0 1 0 1
720 Dynamic Optical Information Storage or Retrieval 1 0 0 0 0 1
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 0 0 1 1
ALL ALL CLASSES 1277 1578 1513 1609 1748 7725



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