Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports


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

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2007 - 2011 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 either by year of patent grant or by year of patent application.
Class Class Title 2007 2008 2009 2010 2011 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 130 105 153 171 180 739
435 Chemistry: Molecular Biology and Microbiology 102 95 105 143 119 564
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 21 31 38 86 62 238
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 64 64 33 32 32 225
370 Multiplex Communications 33 39 36 51 48 207
455 Telecommunications 30 39 24 30 49 172
532 Organic Compounds (includes Classes 532-570) 25 36 36 28 39 164
340 Communications: Electrical 30 39 39 23 23 154
382 Image Analysis 17 37 24 29 16 123
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 18 20 25 23 28 114
128 Surgery (includes Class 600) 27 16 20 29 21 113
398 Optical Communications 18 21 22 20 24 105
356 Optics: Measuring and Testing 20 18 18 20 23 99
375 Pulse or Digital Communications 22 22 20 18 15 97
250 Radiant Energy 17 23 16 22 15 93
714 Error Detection/Correction and Fault Detection/Recovery 11 16 13 18 19 77
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 11 12 13 16 19 71
713 Support (Electrical Computers and Digital Processing Systems) 9 16 12 13 21 71
436 Chemistry: Analytical and Immunological Testing 6 12 14 22 14 68
385 Optical Waveguides 14 15 12 14 9 64
726 Information Security 8 10 5 15 26 64
702 DP: Measuring, Calibrating, or Testing (Data Processing) 9 15 12 11 15 62
707 DP: Database and File Management or Data Structures (Data Processing) 9 11 9 18 15 62
073 Measuring and Testing 13 15 17 12 4 61
438 Semiconductor Device Manufacturing: Process 11 9 7 17 13 57
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 8 8 7 15 16 54
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 7 6 9 15 10 47
606 Surgery (instruments) 3 5 6 11 19 44
604 Surgery (Medicators and Receptors) 6 4 9 11 13 43
607 Surgery: Light, Thermal, and Electrical Application 12 9 6 8 8 43
359 Optical: Systems and Elements 11 10 5 7 9 42
252 Compositions 12 12 4 4 9 41
089 Ordnance 2 12 5 9 11 39
324 Electricity: Measuring and Testing 8 5 6 10 10 39
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 9 10 7 7 6 39
102 Ammunition and Explosives 3 8 11 9 7 38
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 4 10 4 9 11 38
002 Apparel 5 10 9 9 4 37
333 Wave Transmission Lines and Networks 6 4 9 11 7 37
379 Telephonic Communications 8 9 7 6 7 37
345 Computer Graphics Processing and Selective Visual Display Systems 9 6 8 7 6 36
706 DP: Artificial Intelligence (Data Processing) 4 5 7 8 12 36
198 Conveyors: Power-Driven 4 3 9 6 11 33
320 Electricity: Battery or Capacitor Charging or Discharging 1 6 7 9 10 33
244 Aeronautics and Astronautics 11 3 6 3 9 32
310 Electrical Generator or Motor Structure 7 1 4 12 8 32
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 4 4 8 10 6 32
473 Games Using Tangible Projectile 4 6 6 13 3 32
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 3 3 7 15 4 32
361 Electricity: Electrical Systems and Devices 3 5 6 9 8 31
451 Abrading 9 3 10 3 6 31
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 3 5 6 7 10 31
700 DP: Generic Control Systems or Specific Applications (Data Processing) 3 8 7 5 8 31
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 4 6 6 8 6 30
084 Music 3 4 9 6 7 29
725 Interactive Video Distribution Systems 5 5 5 9 5 29
210 Liquid Purification or Separation 8 3 7 5 5 28
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 10 4 7 3 4 28
380 Cryptography 6 4 6 6 6 28
343 Communications: Radio Wave Antennas 5 3 3 7 9 27
029 Metal Working 5 3 5 7 6 26
227 Elongated-Member-Driving Apparatus 6 4 3 8 5 26
428 Stock Material or Miscellaneous Articles 2 7 2 6 9 26
482 Exercise Devices 6 4 5 10 0 25
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 7 4 5 7 2 25
083 Cutting 6 4 5 4 5 24
114 Ships 5 3 4 5 7 24
119 Animal Husbandry 3 4 4 4 9 24
173 Tool Driving or Impacting 2 5 9 5 2 23
297 Chairs and Seats 4 5 4 6 4 23
378 X-Ray or Gamma Ray Systems or Devices 5 7 1 5 5 23
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 7 3 6 2 5 23
362 Illumination 5 5 5 1 6 22
423 Chemistry of Inorganic Compounds 6 1 3 11 1 22
015 Brushing, Scrubbing, and General Cleaning 4 1 4 6 6 21
033 Geometrical Instruments 8 4 4 4 1 21
005 Beds 7 2 5 2 4 20
060 Power Plants 4 2 5 7 2 20
239 Fluid Sprinkling, Spraying, and Diffusing 5 3 4 8 0 20
241 Solid Material Comminution or Disintegration 7 5 4 1 3 20
206 Special Receptacle or Package 3 6 3 3 4 19
248 Supports (e.g., for holding articles, etc.) 2 5 6 4 2 19
326 Electronic Digital Logic Circuitry 1 2 3 6 7 19
408 Cutting by Use of Rotating Axially Moving Tool 2 2 9 6 0 19
165 Heat Exchange 5 1 3 5 4 18
273 Amusement Devices: Games 4 1 3 7 3 18
280 Land Vehicles 4 3 2 3 6 18
348 Television 2 3 5 1 7 18
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 3 1 5 6 2 17
367 Communications, Electrical: Acoustic Wave Systems and Devices 4 2 3 7 1 17
717 DP: Software Development, Installation, and Management (Data Processing) 0 6 1 5 5 17
434 Education and Demonstration 3 7 3 3 0 16
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 1 2 5 3 5 16
030 Cutlery 3 2 2 3 5 15
062 Refrigeration 1 4 4 3 3 15
106 Compositions: Coating or Plastic 5 0 1 5 4 15
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 4 2 1 3 5 15
180 Motor Vehicles 1 3 3 5 3 15
204 Chemistry: Electrical and Wave Energy 2 0 3 6 4 15
081 Tools 6 3 1 1 3 14
222 Dispensing (apparatus and process) 6 1 0 1 6 14
381 Electrical Audio Signal Processing Systems and Devices 5 2 1 4 2 14
711 Memory (Electrical Computers and Digital Processing Systems) 6 1 5 1 1 14
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 3 4 2 1 4 14
042 Firearms 2 1 2 4 4 13
043 Fishing, Trapping, and Vermin Destroying 2 2 1 6 2 13
052 Static Structures (e.g., Buildings) 3 0 2 4 4 13
149 Explosive and Thermic Compositions or Charges 1 0 1 6 5 13
181 Acoustics 1 3 3 3 3 13
279 Chucks or Sockets 3 2 1 4 3 13
307 Electrical Transmission or Interconnection Systems 2 2 3 1 5 13
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 5 2 2 1 3 13
053 Package Making 2 6 1 2 1 12
208 Mineral Oils: Processes and Products 3 1 1 2 5 12
209 Classifying, Separating, and Assorting Solids 5 2 1 4 0 12
372 Coherent Light Generators 1 1 4 1 5 12
427 Coating Processes 0 5 0 4 3 12
475 Planetary Gear Transmission Systems or Components 3 3 3 3 0 12
056 Harvesters 2 5 2 2 0 11
096 Gas Separation: Apparatus 5 1 3 0 2 11
137 Fluid Handling 2 1 2 3 3 11
351 Optics: Eye Examining, Vision Testing and Correcting 2 2 3 2 2 11
358 Facsimile and Static Presentation Processing 5 1 2 1 2 11
004 Baths, Closets, Sinks, and Spittoons 3 1 0 2 4 10
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 1 3 4 2 0 10
135 Tent, Canopy, Umbrella, or Cane 3 1 3 2 1 10
290 Prime-Mover Dynamo Plants 2 2 1 1 4 10
296 Land Vehicles: Bodies and Tops 4 1 3 0 2 10
341 Coded Data Generation or Conversion 2 4 0 1 3 10
404 Road Structure, Process, or Apparatus 5 1 2 1 1 10
405 Hydraulic and Earth Engineering 3 1 1 4 1 10
036 Boots, Shoes, and Leggings 2 1 2 2 2 9
118 Coating Apparatus 3 2 2 1 1 9
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 3 4 0 2 0 9
318 Electricity: Motive Power Systems 0 1 2 4 2 9
426 Food or Edible Material: Processes, Compositions, and Products 0 1 2 3 3 9
040 Card, Picture, or Sign Exhibiting 4 2 1 0 1 8
047 Plant Husbandry 0 1 2 4 1 8
055 Gas Separation 0 1 2 4 1 8
219 Electric Heating 3 0 2 0 3 8
220 Receptacles 3 1 2 1 1 8
414 Material or Article Handling 0 0 5 2 1 8
417 Pumps 1 1 1 2 3 8
439 Electrical Connectors 3 2 0 2 1 8
452 Butchering 0 3 0 0 5 8
123 Internal-Combustion Engines 1 2 1 1 2 7
132 Toilet 0 0 0 2 5 7
134 Cleaning and Liquid Contact with Solids 2 1 2 2 0 7
174 Electricity: Conductors and Insulators 2 1 2 1 1 7
211 Supports: Racks 1 1 1 3 1 7
228 Metal Fusion Bonding 2 1 1 1 2 7
292 Closure Fasteners 2 2 0 1 2 7
294 Handling: Hand and Hoist-Line Implements 2 0 3 1 1 7
330 Amplifiers 2 3 0 1 1 7
446 Amusement Devices: Toys 1 1 0 4 1 7
463 Amusement Devices: Games 0 2 1 3 1 7
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 1 2 2 1 7
074 Machine Element or Mechanism 3 0 1 2 0 6
108 Horizontally Supported Planar Surfaces 1 0 3 1 1 6
144 Woodworking 0 1 3 1 1 6
200 Electricity: Circuit Makers and Breakers 0 0 4 0 2 6
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 0 0 2 3 6
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 1 0 0 4 6
313 Electric Lamp and Discharge Devices 3 0 0 2 1 6
366 Agitating (e.g., of articles and materials) 2 1 3 0 0 6
501 Compositions: Ceramic 1 1 2 0 2 6
588 Hazardous or Toxic Waste Destruction or Containment 1 0 3 2 0 6
601 Surgery: Kinesitherapy 0 1 2 0 3 6
708 Arithmetic Processing and Calculating (Electrical Computers) 2 1 2 1 0 6
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 0 1 2 3 0 6
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 2 2 1 1 6
048 Gas: Heating and Illuminating 1 1 2 1 0 5
095 Gas Separation: Processes 0 0 1 1 3 5
126 Stoves and Furnaces 0 1 0 1 3 5
148 Metal Treatment 0 0 1 3 1 5
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 0 0 3 1 5
216 Etching a Substrate: Processes 1 1 0 0 3 5
224 Package and Article Carriers 1 1 0 2 1 5
229 Envelopes, Wrappers, and Paperboard Boxes 2 1 0 1 1 5
261 Gas and Liquid Contact Apparatus 2 0 1 2 0 5
315 Electric Lamp and Discharge Devices: Systems 1 0 1 1 2 5
368 Horology: Time Measuring Systems or Devices 3 1 1 0 0 5
374 Thermal Measuring and Testing 0 2 1 0 2 5
396 Photography 0 0 1 2 2 5
441 Buoys, Rafts, and Aquatic Devices 0 0 1 3 1 5
450 Foundation Garments 2 0 1 1 1 5
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 2 0 1 2 5
602 Surgery: Splint, Brace, or Bandage 1 0 0 1 3 5
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 0 2 3 0 5
269 Work Holders 1 1 0 1 1 4
336 Inductor Devices 1 2 0 1 0 4
365 Static Information Storage and Retrieval 1 1 2 0 0 4
392 Electric Resistance Heating Devices 1 0 0 2 1 4
440 Marine Propulsion 1 1 1 1 0 4
014 Bridges 0 0 0 0 3 3
024 Buckles, Buttons, Clasps, Etc. 0 0 0 2 1 3
037 Excavating 0 0 1 0 2 3
066 Textiles: Knitting 0 1 0 2 0 3
104 Railways 0 0 1 0 2 3
125 Stone Working 1 1 0 1 0 3
136 Batteries: Thermoelectric and Photoelectric 1 0 0 2 0 3
182 Fire Escape, Ladder, or Scaffold 0 0 1 0 2 3
188 Brakes 0 0 0 0 3 3
192 Clutches and Power-Stop Control 0 0 0 1 2 3
223 Apparel Apparatus 0 1 0 0 2 3
242 Winding, Tensioning, or Guiding 1 1 1 0 0 3
251 Valves and Valve Actuation 1 0 0 1 1 3
271 Sheet Feeding or Delivering 0 1 0 0 2 3
331 Oscillators 1 1 1 0 0 3
353 Optics: Image Projectors 2 0 1 0 0 3
386 Motion Video Signal Processing for Recording or Reproducing 2 1 0 0 0 3
406 Conveyors: Fluid Current 0 0 1 0 2 3
410 Freight Accommodation On Freight Carrier 2 0 0 1 0 3
431 Combustion 0 1 0 1 1 3
433 Dentistry 0 1 1 0 1 3
454 Ventilation 0 1 0 0 2 3
720 Dynamic Optical Information Storage or Retrieval 0 2 1 0 0 3
007 Compound Hand Tools 1 1 0 0 0 2
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 0 1 0 0 2
034 Drying and Gas or Vapor Contact with Solids 0 0 0 0 2 2
065 Glass Manufacturing 0 0 2 0 0 2
072 Metal Deforming 2 0 0 0 0 2
109 Safes, Bank Protection, or a Related Device 0 1 0 0 1 2
111 Planting 0 0 1 1 0 2
116 Signals and Indicators 0 1 0 0 1 2
124 Mechanical Guns and Projectors 0 0 1 0 1 2
139 Textiles: Weaving 2 0 0 0 0 2
152 Resilient Tires and Wheels 1 1 0 0 0 2
160 Flexible or Portable Closure, Partition, or Panel 0 0 0 1 1 2
169 Fire Extinguishers 0 0 1 0 1 2
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 1 1 0 2
215 Bottles and Jars 0 1 0 0 1 2
221 Article Dispensing 1 0 0 1 0 2
232 Deposit and Collection Receptacles 0 0 1 0 1 2
312 Supports: Cabinet Structure 0 0 0 2 0 2
323 Electricity: Power Supply or Regulation Systems 0 0 0 1 1 2
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 1 0 1 2
337 Electricity: Electrothermally or Thermally Actuated Switches 0 2 0 0 0 2
347 Incremental Printing of Symbolic Information 0 0 0 2 0 2
355 Photocopying 0 0 0 1 1 2
360 Dynamic Magnetic Information Storage or Retrieval 0 1 0 1 0 2
369 Dynamic Information Storage or Retrieval 0 1 0 1 0 2
384 Bearings 1 0 0 1 0 2
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 1 0 1 2
415 Rotary Kinetic Fluid Motors or Pumps 0 0 1 0 1 2
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 1 0 0 0 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 1 0 1 0 2
474 Endless Belt Power Transmission Systems or Components 0 1 0 1 0 2
477 Interrelated Power Delivery Controls, Including Engine Control 0 1 0 1 0 2
494 Imperforate Bowl: Centrifugal Separators 0 0 1 0 1 2
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 1 1 2
585 Chemistry of Hydrocarbon Compounds 1 1 0 0 0 2
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 1 0 1 0 0 2
016 Miscellaneous Hardware 0 0 0 1 0 1
023 Chemistry: Physical Processes 0 1 0 0 0 1
027 Undertaking 0 0 0 0 1 1
049 Movable or Removable Closures 1 0 0 0 0 1
054 Harness for Working Animal 1 0 0 0 0 1
070 Locks 0 0 1 0 0 1
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 0 0 1 1
086 Ammunition and Explosive-Charge Making 0 0 0 0 1 1
091 Motors: Expansible Chamber Type 0 0 0 0 1 1
092 Expansible Chamber Devices 0 1 0 0 0 1
099 Foods and Beverages: Apparatus 0 0 0 1 0 1
110 Furnaces 1 0 0 0 0 1
131 Tobacco 0 0 0 1 0 1
150 Purses, Wallets, and Protective Covers 0 0 0 1 0 1
162 Paper Making and Fiber Liberation 0 0 0 1 0 1
177 Weighing Scales 1 0 0 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 0 1 0 1
201 Distillation: Processes, Thermolytic 0 0 1 0 0 1
203 Distillation: Processes, Separatory 0 1 0 0 0 1
213 Railway Draft Appliances 0 0 0 1 0 1
236 Automatic Temperature and Humidity Regulation 1 0 0 0 0 1
246 Railway Switches and Signals 1 0 0 0 0 1
249 Static Molds 0 0 0 1 0 1
256 Fences 0 1 0 0 0 1
270 Sheet-Material Associating 0 0 0 1 0 1
283 Printed Matter 0 0 0 0 1 1
285 Pipe Joints or Couplings 0 1 0 0 0 1
322 Electricity: Single Generator Systems 1 0 0 0 0 1
332 Modulators 1 0 0 0 0 1
338 Electrical Resistors 1 0 0 0 0 1
346 Recorders 1 0 0 0 0 1
373 Industrial Electric Heating Furnaces 0 0 0 1 0 1
383 Flexible Bags 0 0 0 1 0 1
388 Electricity: Motor Control Systems 0 0 0 1 0 1
403 Joints and Connections 0 1 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 0 0 1 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 1 0 0 0 1
418 Rotary Expansible Chamber Devices 0 1 0 0 0 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1 0 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 0 0 1
483 Tool Changing 1 0 0 0 0 1
504 Plant Protecting and Regulating Compositions 0 0 1 0 0 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 1 0 1
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 0 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 0 1 0 1
ALL ALL CLASSES 1246 1232 1277 1578 1511 6844


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/


Top

Skip menu navigation Home > Listing of Viewable PTMT Reports > Table of Contents for This Set of Reports