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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 2008 - 2012 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 2008 2009 2010 2011 2012 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 105 153 171 181 201 811
435 Chemistry: Molecular Biology and Microbiology 95 105 143 119 99 561
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 31 38 86 62 78 295
370 Multiplex Communications 39 36 51 48 52 226
455 Telecommunications 39 24 30 49 48 190
532 Organic Compounds (includes Classes 532-570) 36 36 28 39 44 183
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 64 33 32 32 16 177
340 Communications: Electrical 39 39 23 23 25 149
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 20 25 23 28 36 132
382 Image Analysis 37 24 29 16 20 126
128 Surgery (includes Class 600) 16 20 29 21 31 117
398 Optical Communications 21 22 20 24 15 102
250 Radiant Energy 23 16 22 15 17 93
356 Optics: Measuring and Testing 18 18 20 23 13 92
375 Pulse or Digital Communications 22 20 18 15 15 90
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 12 13 16 20 23 84
713 Support (Electrical Computers and Digital Processing Systems) 16 12 14 21 19 82
714 Error Detection/Correction and Fault Detection/Recovery 16 13 18 19 16 82
702 DP: Measuring, Calibrating, or Testing (Data Processing) 15 12 11 15 24 77
726 Information Security 10 5 14 26 21 76
436 Chemistry: Analytical and Immunological Testing 12 14 22 14 13 75
707 DP: Database and File Management or Data Structures (Data Processing) 11 9 18 15 22 75
073 Measuring and Testing 15 17 12 4 20 68
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 8 7 15 16 17 63
606 Surgery (instruments) 5 6 11 19 20 61
385 Optical Waveguides 15 12 14 9 9 59
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 6 9 15 10 16 56
438 Semiconductor Device Manufacturing: Process 9 7 17 13 9 55
706 DP: Artificial Intelligence (Data Processing) 5 7 8 12 18 50
089 Ordnance 12 5 9 11 12 49
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 10 4 9 11 15 49
604 Surgery (Medicators and Receptors) 4 9 11 13 9 46
102 Ammunition and Explosives 8 11 9 7 8 43
607 Surgery: Light, Thermal, and Electrical Application 9 6 8 8 12 43
002 Apparel 10 9 9 4 9 41
320 Electricity: Battery or Capacitor Charging or Discharging 6 7 9 10 9 41
324 Electricity: Measuring and Testing 5 6 10 10 9 40
359 Optical: Systems and Elements 10 5 7 9 9 40
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 6 6 8 6 14 40
700 DP: Generic Control Systems or Specific Applications (Data Processing) 8 7 5 8 9 37
379 Telephonic Communications 9 7 6 7 7 36
252 Compositions 12 4 4 9 6 35
333 Wave Transmission Lines and Networks 4 9 11 7 4 35
345 Computer Graphics Processing and Selective Visual Display Systems 6 8 7 6 8 35
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 10 7 7 6 5 35
198 Conveyors: Power-Driven 3 9 6 11 5 34
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 3 7 15 4 5 34
725 Interactive Video Distribution Systems 5 5 9 5 10 34
473 Games Using Tangible Projectile 6 6 13 3 5 33
428 Stock Material or Miscellaneous Articles 7 2 6 9 8 32
084 Music 4 9 6 7 5 31
310 Electrical Generator or Motor Structure 1 4 12 8 6 31
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 4 8 10 6 3 31
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 5 6 7 10 3 31
173 Tool Driving or Impacting 5 9 5 2 9 30
244 Aeronautics and Astronautics 3 6 3 9 8 29
361 Electricity: Electrical Systems and Devices 5 6 9 8 1 29
343 Communications: Radio Wave Antennas 3 3 7 9 6 28
119 Animal Husbandry 4 4 4 9 6 27
210 Liquid Purification or Separation 3 7 5 5 7 27
029 Metal Working 3 5 7 6 5 26
227 Elongated-Member-Driving Apparatus 4 3 8 5 5 25
380 Cryptography 4 6 6 6 3 25
451 Abrading 3 10 3 6 3 25
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 3 6 2 5 8 24
015 Brushing, Scrubbing, and General Cleaning 1 4 6 6 6 23
297 Chairs and Seats 5 4 6 4 4 23
378 X-Ray or Gamma Ray Systems or Devices 7 1 5 5 5 23
434 Education and Demonstration 7 3 3 0 10 23
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 4 5 7 2 5 23
060 Power Plants 2 5 7 2 6 22
083 Cutting 4 5 4 5 4 22
114 Ships 3 4 5 7 3 22
248 Supports (e.g., for holding articles, etc.) 5 6 4 2 5 22
307 Electrical Transmission or Interconnection Systems 2 3 1 5 11 22
326 Electronic Digital Logic Circuitry 2 3 6 7 4 22
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 4 7 3 4 3 21
348 Television 3 5 1 7 5 21
362 Illumination 5 5 1 6 4 21
367 Communications, Electrical: Acoustic Wave Systems and Devices 2 3 7 1 8 21
482 Exercise Devices 4 5 10 0 2 21
717 DP: Software Development, Installation, and Management (Data Processing) 6 1 5 5 4 21
239 Fluid Sprinkling, Spraying, and Diffusing 3 4 8 0 4 19
206 Special Receptacle or Package 6 3 3 4 2 18
241 Solid Material Comminution or Disintegration 5 4 1 3 5 18
280 Land Vehicles 3 2 3 6 4 18
423 Chemistry of Inorganic Compounds 1 3 11 1 2 18
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 5 3 5 3 18
033 Geometrical Instruments 4 4 4 1 4 17
180 Motor Vehicles 3 3 5 3 3 17
273 Amusement Devices: Games 1 3 7 3 3 17
408 Cutting by Use of Rotating Axially Moving Tool 2 9 6 0 0 17
427 Coating Processes 5 0 4 3 5 17
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 4 2 1 4 6 17
005 Beds 2 5 2 4 3 16
042 Firearms 1 2 4 4 5 16
052 Static Structures (e.g., Buildings) 0 2 4 4 6 16
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 2 1 3 5 5 16
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 4 0 2 0 10 16
165 Heat Exchange 1 3 5 4 3 16
204 Chemistry: Electrical and Wave Energy 0 3 6 4 3 16
381 Electrical Audio Signal Processing Systems and Devices 2 1 4 2 7 16
149 Explosive and Thermic Compositions or Charges 0 1 6 5 3 15
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 5 6 2 1 15
372 Coherent Light Generators 1 4 1 5 4 15
062 Refrigeration 4 4 3 3 0 14
181 Acoustics 3 3 3 3 2 14
463 Amusement Devices: Games 2 1 3 1 7 14
030 Cutlery 2 2 3 5 1 13
043 Fishing, Trapping, and Vermin Destroying 2 1 6 2 2 13
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 3 4 2 0 3 12
137 Fluid Handling 1 2 3 3 3 12
208 Mineral Oils: Processes and Products 1 1 2 5 3 12
220 Receptacles 1 2 1 1 7 12
290 Prime-Mover Dynamo Plants 2 1 1 4 4 12
351 Optics: Eye Examining, Vision Testing and Correcting 2 3 2 2 3 12
081 Tools 3 1 1 3 3 11
106 Compositions: Coating or Plastic 0 1 5 4 1 11
222 Dispensing (apparatus and process) 1 0 1 6 3 11
279 Chucks or Sockets 2 1 4 3 1 11
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 2 2 1 3 3 11
426 Food or Edible Material: Processes, Compositions, and Products 1 2 3 3 2 11
475 Planetary Gear Transmission Systems or Components 3 3 3 0 2 11
711 Memory (Electrical Computers and Digital Processing Systems) 1 5 1 1 3 11
004 Baths, Closets, Sinks, and Spittoons 1 0 2 4 3 10
036 Boots, Shoes, and Leggings 1 2 2 2 3 10
053 Package Making 6 1 2 1 0 10
055 Gas Separation 1 2 4 1 2 10
056 Harvesters 5 2 2 0 1 10
095 Gas Separation: Processes 0 1 1 3 5 10
096 Gas Separation: Apparatus 1 3 0 2 4 10
405 Hydraulic and Earth Engineering 1 1 4 1 3 10
414 Material or Article Handling 0 5 2 1 2 10
047 Plant Husbandry 1 2 4 1 1 9
123 Internal-Combustion Engines 2 1 1 2 3 9
200 Electricity: Circuit Makers and Breakers 0 4 0 2 3 9
209 Classifying, Separating, and Assorting Solids 2 1 4 0 2 9
318 Electricity: Motive Power Systems 1 2 4 2 0 9
341 Coded Data Generation or Conversion 4 0 1 3 1 9
374 Thermal Measuring and Testing 2 1 0 2 4 9
417 Pumps 1 1 2 3 2 9
132 Toilet 0 0 2 5 1 8
134 Cleaning and Liquid Contact with Solids 1 2 2 0 3 8
135 Tent, Canopy, Umbrella, or Cane 1 3 2 1 1 8
144 Woodworking 1 3 1 1 2 8
148 Metal Treatment 0 1 3 1 3 8
174 Electricity: Conductors and Insulators 1 2 1 1 3 8
296 Land Vehicles: Bodies and Tops 1 3 0 2 2 8
452 Butchering 3 0 0 5 0 8
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 2 0 1 2 3 8
108 Horizontally Supported Planar Surfaces 0 3 1 1 2 7
182 Fire Escape, Ladder, or Scaffold 0 1 0 2 4 7
219 Electric Heating 0 2 0 3 2 7
315 Electric Lamp and Discharge Devices: Systems 0 1 1 2 3 7
358 Facsimile and Static Presentation Processing 1 2 1 2 1 7
404 Road Structure, Process, or Apparatus 1 2 1 1 2 7
446 Amusement Devices: Toys 1 0 4 1 1 7
501 Compositions: Ceramic 1 2 0 2 2 7
601 Surgery: Kinesitherapy 1 2 0 3 1 7
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 1 2 3 0 1 7
040 Card, Picture, or Sign Exhibiting 2 1 0 1 2 6
118 Coating Apparatus 2 2 1 1 0 6
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 0 2 3 1 6
211 Supports: Racks 1 1 3 1 0 6
228 Metal Fusion Bonding 1 1 1 2 1 6
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 0 0 4 1 6
261 Gas and Liquid Contact Apparatus 0 1 2 0 3 6
366 Agitating (e.g., of articles and materials) 1 3 0 0 2 6
396 Photography 0 1 2 2 1 6
439 Electrical Connectors 2 0 2 1 1 6
602 Surgery: Splint, Brace, or Bandage 0 0 1 3 2 6
708 Arithmetic Processing and Calculating (Electrical Computers) 1 2 1 0 2 6
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 1 2 2 1 0 6
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 2 3 0 1 6
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 2 2 1 1 0 6
048 Gas: Heating and Illuminating 1 2 1 0 1 5
126 Stoves and Furnaces 1 0 1 3 0 5
136 Batteries: Thermoelectric and Photoelectric 0 0 2 0 3 5
216 Etching a Substrate: Processes 1 0 0 3 1 5
224 Package and Article Carriers 1 0 2 1 1 5
229 Envelopes, Wrappers, and Paperboard Boxes 1 0 1 1 2 5
269 Work Holders 1 0 1 1 2 5
292 Closure Fasteners 2 0 1 2 0 5
294 Handling: Hand and Hoist-Line Implements 0 3 1 1 0 5
330 Amplifiers 3 0 1 1 0 5
433 Dentistry 1 1 0 1 2 5
440 Marine Propulsion 1 1 1 0 2 5
441 Buoys, Rafts, and Aquatic Devices 0 1 3 1 0 5
588 Hazardous or Toxic Waste Destruction or Containment 0 3 2 0 0 5
014 Bridges 0 0 0 3 1 4
024 Buckles, Buttons, Clasps, Etc. 0 0 2 1 1 4
034 Drying and Gas or Vapor Contact with Solids 0 0 0 2 2 4
074 Machine Element or Mechanism 0 1 2 0 1 4
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 3 1 0 4
271 Sheet Feeding or Delivering 1 0 0 2 1 4
365 Static Information Storage and Retrieval 1 2 0 0 1 4
392 Electric Resistance Heating Devices 0 0 2 1 1 4
406 Conveyors: Fluid Current 0 1 0 2 1 4
477 Interrelated Power Delivery Controls, Including Engine Control 1 0 1 0 2 4
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 1 1 2 4
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 1 0 0 3 4
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 0 0 1 0 2 3
027 Undertaking 0 0 0 1 2 3
037 Excavating 0 1 0 2 0 3
066 Textiles: Knitting 1 0 2 0 0 3
092 Expansible Chamber Devices 1 0 0 0 2 3
104 Railways 0 1 0 2 0 3
124 Mechanical Guns and Projectors 0 1 0 1 1 3
131 Tobacco 0 0 1 0 2 3
188 Brakes 0 0 0 3 0 3
192 Clutches and Power-Stop Control 0 0 1 2 0 3
215 Bottles and Jars 1 0 0 1 1 3
223 Apparel Apparatus 1 0 0 2 0 3
313 Electric Lamp and Discharge Devices 0 0 2 1 0 3
323 Electricity: Power Supply or Regulation Systems 0 0 1 1 1 3
331 Oscillators 1 1 0 0 1 3
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 1 0 1 1 3
336 Inductor Devices 2 0 1 0 0 3
415 Rotary Kinetic Fluid Motors or Pumps 0 1 0 1 1 3
418 Rotary Expansible Chamber Devices 1 0 0 0 2 3
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 0 0 0 2 3
431 Combustion 1 0 1 1 0 3
450 Foundation Garments 0 1 1 1 0 3
454 Ventilation 1 0 0 2 0 3
720 Dynamic Optical Information Storage or Retrieval 2 1 0 0 0 3
065 Glass Manufacturing 0 2 0 0 0 2
070 Locks 0 1 0 0 1 2
109 Safes, Bank Protection, or a Related Device 1 0 0 1 0 2
111 Planting 0 1 1 0 0 2
116 Signals and Indicators 1 0 0 1 0 2
125 Stone Working 1 0 1 0 0 2
152 Resilient Tires and Wheels 1 0 0 0 1 2
160 Flexible or Portable Closure, Partition, or Panel 0 0 1 1 0 2
169 Fire Extinguishers 0 1 0 1 0 2
193 Conveyors, Chutes, Skids, Guides, and Ways 0 1 1 0 0 2
232 Deposit and Collection Receptacles 0 1 0 1 0 2
242 Winding, Tensioning, or Guiding 1 1 0 0 0 2
251 Valves and Valve Actuation 0 0 1 1 0 2
277 Seal for a Joint or Juncture 0 0 0 0 2 2
285 Pipe Joints or Couplings 1 0 0 0 1 2
312 Supports: Cabinet Structure 0 0 2 0 0 2
337 Electricity: Electrothermally or Thermally Actuated Switches 2 0 0 0 0 2
347 Incremental Printing of Symbolic Information 0 0 2 0 0 2
353 Optics: Image Projectors 0 1 0 0 1 2
355 Photocopying 0 0 1 1 0 2
360 Dynamic Magnetic Information Storage or Retrieval 1 0 1 0 0 2
368 Horology: Time Measuring Systems or Devices 1 1 0 0 0 2
369 Dynamic Information Storage or Retrieval 1 0 1 0 0 2
383 Flexible Bags 0 0 1 0 1 2
386 Motion Video Signal Processing for Recording or Reproducing 1 0 0 0 1 2
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 1 0 1 0 2
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 2 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 0 1 0 0 2
474 Endless Belt Power Transmission Systems or Components 1 0 1 0 0 2
494 Imperforate Bowl: Centrifugal Separators 0 1 0 1 0 2
504 Plant Protecting and Regulating Compositions 0 1 0 0 1 2
585 Chemistry of Hydrocarbon Compounds 1 0 0 0 1 2
007 Compound Hand Tools 1 0 0 0 0 1
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 1 0 0 0 1
023 Chemistry: Physical Processes 1 0 0 0 0 1
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 0 1 0 1
086 Ammunition and Explosive-Charge Making 0 0 0 1 0 1
091 Motors: Expansible Chamber Type 0 0 0 1 0 1
099 Foods and Beverages: Apparatus 0 0 1 0 0 1
105 Railway Rolling Stock 0 0 0 0 1 1
150 Purses, Wallets, and Protective Covers 0 0 1 0 0 1
157 Wheelwright Machines 0 0 0 0 1 1
162 Paper Making and Fiber Liberation 0 0 1 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 1 0 0 1
201 Distillation: Processes, Thermolytic 0 1 0 0 0 1
203 Distillation: Processes, Separatory 1 0 0 0 0 1
213 Railway Draft Appliances 0 0 1 0 0 1
221 Article Dispensing 0 0 1 0 0 1
236 Automatic Temperature and Humidity Regulation 0 0 0 0 1 1
246 Railway Switches and Signals 0 0 0 0 1 1
249 Static Molds 0 0 1 0 0 1
256 Fences 1 0 0 0 0 1
270 Sheet-Material Associating 0 0 1 0 0 1
283 Printed Matter 0 0 0 1 0 1
289 Knots and Knot Tying 0 0 0 0 1 1
293 Vehicle Fenders 0 0 0 0 1 1
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 1 1
373 Industrial Electric Heating Furnaces 0 0 1 0 0 1
384 Bearings 0 0 1 0 0 1
388 Electricity: Motor Control Systems 0 0 1 0 0 1
401 Coating Implements with Material Supply 0 0 0 0 1 1
403 Joints and Connections 1 0 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 0 1 0 0 1
410 Freight Accommodation On Freight Carrier 0 0 1 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 1 0 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 0 0 1
472 Amusement Devices 0 0 0 0 1 1
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 0 0 0 0 1 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 1 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 1 0 0 1
ALL ALL CLASSES 1232 1277 1578 1513 1609 7209


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT materials available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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