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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

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

Count of 2004 - 2008 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

IOWA

( 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 2004 2005 2006 2007 2008 Total
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 96 77 119 152 125 569
435 Chemistry: Molecular Biology and Microbiology 19 16 33 26 21 115
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 16 12 16 25 16 85
056 Harvesters 10 20 13 10 12 65
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 15 10 7 14 11 57
532 Organic Compounds (includes Classes 532-570) 8 6 7 15 17 53
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 8 8 6 13 9 44
172 Earth Working 13 11 10 5 3 42
455 Telecommunications 9 3 9 7 11 39
052 Static Structures (e.g., Buildings) 11 11 4 9 2 37
062 Refrigeration 13 2 7 7 7 36
340 Communications: Electrical 6 6 14 4 5 35
375 Pulse or Digital Communications 6 6 4 9 9 34
280 Land Vehicles 9 8 3 9 4 33
370 Multiplex Communications 5 6 5 6 11 33
060 Power Plants 3 6 8 7 8 32
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 6 3 8 7 7 31
210 Liquid Purification or Separation 6 4 9 3 8 30
426 Food or Edible Material: Processes, Compositions, and Products 10 6 6 4 4 30
361 Electricity: Electrical Systems and Devices 8 5 6 5 5 29
312 Supports: Cabinet Structure 3 9 6 4 5 27
239 Fluid Sprinkling, Spraying, and Diffusing 7 9 4 4 2 26
251 Valves and Valve Actuation 4 10 6 4 2 26
330 Amplifiers 6 3 4 5 8 26
452 Butchering 2 5 8 8 3 26
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 5 4 6 5 6 26
137 Fluid Handling 8 3 8 2 4 25
296 Land Vehicles: Bodies and Tops 8 3 4 5 5 25
111 Planting 6 3 9 4 2 24
343 Communications: Radio Wave Antennas 4 5 6 2 7 24
362 Illumination 5 5 7 2 5 24
037 Excavating 6 5 3 4 5 23
073 Measuring and Testing 6 3 5 1 8 23
100 Presses 4 0 8 8 3 23
241 Solid Material Comminution or Disintegration 0 7 7 4 5 23
297 Chairs and Seats 6 10 5 0 2 23
414 Material or Article Handling 5 5 6 2 5 23
700 DP: Generic Control Systems or Specific Applications (Data Processing) 5 2 9 2 5 23
029 Metal Working 3 6 6 3 4 22
180 Motor Vehicles 2 8 3 5 3 21
702 DP: Measuring, Calibrating, or Testing (Data Processing) 7 7 3 0 4 21
379 Telephonic Communications 5 2 4 5 4 20
119 Animal Husbandry 4 4 2 5 4 19
128 Surgery (includes Class 600) 5 6 4 0 4 19
160 Flexible or Portable Closure, Partition, or Panel 7 3 4 4 1 19
292 Closure Fasteners 4 2 5 6 2 19
219 Electric Heating 6 2 5 2 3 18
345 Computer Graphics Processing and Selective Visual Display Systems 7 6 3 1 1 18
123 Internal-Combustion Engines 1 4 6 4 2 17
324 Electricity: Measuring and Testing 4 4 4 3 2 17
460 Crop Threshing or Separating 2 6 3 4 2 17
005 Beds 3 2 6 1 3 15
175 Boring or Penetrating the Earth 6 2 4 2 1 15
081 Tools 4 4 2 3 1 14
114 Ships 8 5 0 1 0 14
381 Electrical Audio Signal Processing Systems and Devices 5 5 0 3 1 14
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 3 5 3 2 1 14
053 Package Making 2 2 4 2 3 13
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 3 3 3 4 0 13
710 Input/Output (Electrical Computers and Digital Processing Systems) 2 4 1 1 4 12
072 Metal Deforming 1 2 3 3 2 11
092 Expansible Chamber Devices 7 1 1 2 0 11
382 Image Analysis 0 1 2 5 3 11
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 2 0 2 6 1 11
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 1 5 1 4 11
033 Geometrical Instruments 3 1 2 2 2 10
204 Chemistry: Electrical and Wave Energy 2 3 2 1 2 10
248 Supports (e.g., for holding articles, etc.) 2 3 3 1 1 10
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 4 2 0 3 1 10
434 Education and Demonstration 1 3 3 2 1 10
473 Games Using Tangible Projectile 3 0 3 0 4 10
707 DP: Database and File Management or Data Structures (Data Processing) 3 4 3 0 0 10
714 Error Detection/Correction and Fault Detection/Recovery 2 1 2 4 1 10
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 3 1 4 0 1 9
042 Firearms 2 1 4 2 0 9
074 Machine Element or Mechanism 5 1 0 1 2 9
198 Conveyors: Power-Driven 1 2 1 2 3 9
326 Electronic Digital Logic Circuitry 3 3 1 2 0 9
331 Oscillators 2 3 3 1 0 9
341 Coded Data Generation or Conversion 3 1 5 0 0 9
359 Optical: Systems and Elements 1 1 4 2 1 9
405 Hydraulic and Earth Engineering 1 1 5 0 2 9
451 Abrading 0 1 3 3 2 9
713 Support (Electrical Computers and Digital Processing Systems) 1 2 4 1 1 9
015 Brushing, Scrubbing, and General Cleaning 2 0 1 3 2 8
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 2 2 2 2 0 8
249 Static Molds 3 1 2 2 0 8
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 3 3 1 0 8
403 Joints and Connections 1 6 1 0 0 8
404 Road Structure, Process, or Apparatus 0 1 3 2 2 8
428 Stock Material or Miscellaneous Articles 4 1 0 3 0 8
454 Ventilation 2 4 1 0 1 8
034 Drying and Gas or Vapor Contact with Solids 2 4 1 0 0 7
068 Textiles: Fluid Treating Apparatus 2 2 1 0 2 7
095 Gas Separation: Processes 3 0 2 1 1 7
108 Horizontally Supported Planar Surfaces 2 3 2 0 0 7
417 Pumps 3 0 1 2 1 7
439 Electrical Connectors 2 1 1 0 3 7
446 Amusement Devices: Toys 3 1 1 0 2 7
200 Electricity: Circuit Makers and Breakers 1 1 1 1 2 6
211 Supports: Racks 1 1 1 2 1 6
250 Radiant Energy 1 1 3 0 1 6
252 Compositions 1 1 2 1 1 6
273 Amusement Devices: Games 1 1 2 1 1 6
318 Electricity: Motive Power Systems 2 2 0 0 2 6
378 X-Ray or Gamma Ray Systems or Devices 0 2 2 0 2 6
415 Rotary Kinetic Fluid Motors or Pumps 2 2 2 0 0 6
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 1 2 0 2 6
482 Exercise Devices 0 1 2 1 2 6
002 Apparel 1 3 1 0 0 5
016 Miscellaneous Hardware 1 2 1 0 1 5
040 Card, Picture, or Sign Exhibiting 1 2 0 1 1 5
070 Locks 3 0 0 1 1 5
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 2 1 1 0 1 5
165 Heat Exchange 1 1 2 0 1 5
174 Electricity: Conductors and Insulators 2 1 1 0 1 5
182 Fire Escape, Ladder, or Scaffold 2 0 2 1 0 5
192 Clutches and Power-Stop Control 1 0 1 0 3 5
221 Article Dispensing 1 1 2 0 1 5
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 1 2 2 5
290 Prime-Mover Dynamo Plants 1 0 1 0 3 5
356 Optics: Measuring and Testing 3 0 0 2 0 5
366 Agitating (e.g., of articles and materials) 1 1 1 2 0 5
385 Optical Waveguides 1 0 2 0 2 5
410 Freight Accommodation On Freight Carrier 0 2 1 1 1 5
602 Surgery: Splint, Brace, or Bandage 0 1 1 3 0 5
043 Fishing, Trapping, and Vermin Destroying 2 0 0 0 2 4
049 Movable or Removable Closures 1 2 1 0 0 4
084 Music 0 0 1 1 2 4
091 Motors: Expansible Chamber Type 1 0 1 0 2 4
099 Foods and Beverages: Apparatus 0 0 1 2 1 4
118 Coating Apparatus 3 0 1 0 0 4
124 Mechanical Guns and Projectors 0 0 1 1 2 4
144 Woodworking 3 0 0 0 1 4
188 Brakes 1 1 1 0 1 4
206 Special Receptacle or Package 1 1 2 0 0 4
222 Dispensing (apparatus and process) 0 0 0 1 3 4
229 Envelopes, Wrappers, and Paperboard Boxes 1 1 1 1 0 4
242 Winding, Tensioning, or Guiding 0 1 1 1 1 4
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1 1 1 0 1 4
285 Pipe Joints or Couplings 2 0 1 1 0 4
310 Electrical Generator or Motor Structure 1 0 2 0 1 4
384 Bearings 0 1 2 0 1 4
398 Optical Communications 0 0 2 1 1 4
418 Rotary Expansible Chamber Devices 1 2 0 0 1 4
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 0 0 1 1 4
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 2 2 0 0 4
440 Marine Propulsion 3 1 0 0 0 4
475 Planetary Gear Transmission Systems or Components 3 0 0 1 0 4
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 0 2 0 0 2 4
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 1 1 2 4
004 Baths, Closets, Sinks, and Spittoons 1 1 0 0 1 3
030 Cutlery 0 0 0 3 0 3
083 Cutting 1 1 1 0 0 3
122 Liquid Heaters and Vaporizers 0 1 2 0 0 3
132 Toilet 1 0 1 1 0 3
157 Wheelwright Machines 1 0 1 1 0 3
177 Weighing Scales 1 0 0 1 1 3
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 1 0 2 0 3
209 Classifying, Separating, and Assorting Solids 1 1 0 1 0 3
232 Deposit and Collection Receptacles 1 0 0 1 1 3
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 1 0 1 0 3
294 Handling: Hand and Hoist-Line Implements 0 2 0 1 0 3
298 Land Vehicles: Dumping 0 2 1 0 0 3
305 Wheel Substitutes for Land Vehicles 0 3 0 0 0 3
315 Electric Lamp and Discharge Devices: Systems 1 0 1 1 0 3
333 Wave Transmission Lines and Networks 0 0 0 2 1 3
349 Liquid Crystal Cells, Elements and Systems 2 1 0 0 0 3
351 Optics: Eye Examining, Vision Testing and Correcting 1 0 1 1 0 3
353 Optics: Image Projectors 0 0 2 0 1 3
365 Static Information Storage and Retrieval 2 0 0 1 0 3
427 Coating Processes 1 1 1 0 0 3
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 2 0 1 0 0 3
438 Semiconductor Device Manufacturing: Process 0 1 1 1 0 3
441 Buoys, Rafts, and Aquatic Devices 0 1 0 0 2 3
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 0 2 1 3
507 Earth Boring, Well Treating, and Oil Field Chemistry 1 0 1 1 0 3
604 Surgery (Medicators and Receptors) 2 0 1 0 0 3
607 Surgery: Light, Thermal, and Electrical Application 0 0 1 2 0 3
708 Arithmetic Processing and Calculating (Electrical Computers) 1 2 0 0 0 3
711 Memory (Electrical Computers and Digital Processing Systems) 2 0 1 0 0 3
717 DP: Software Development, Installation, and Management (Data Processing) 0 1 1 1 0 3
725 Interactive Video Distribution Systems 2 0 1 0 0 3
036 Boots, Shoes, and Leggings 0 0 1 1 0 2
051 Abrasive Tool Making Process, Material, or Composition 1 1 0 0 0 2
105 Railway Rolling Stock 0 0 2 0 0 2
106 Compositions: Coating or Plastic 1 1 0 0 0 2
116 Signals and Indicators 0 0 0 0 2 2
126 Stoves and Furnaces 1 0 0 0 1 2
138 Pipes and Tubular Conduits 1 0 0 0 1 2
148 Metal Treatment 1 0 0 1 0 2
150 Purses, Wallets, and Protective Covers 1 0 0 1 0 2
171 Unearthing Plants or Buried Objects 1 0 0 1 0 2
184 Lubrication 0 1 0 0 1 2
193 Conveyors, Chutes, Skids, Guides, and Ways 1 0 1 0 0 2
228 Metal Fusion Bonding 0 2 0 0 0 2
238 Railways: Surface Track 0 0 0 1 1 2
277 Seal for a Joint or Juncture 1 1 0 0 0 2
289 Knots and Knot Tying 0 1 0 0 1 2
323 Electricity: Power Supply or Regulation Systems 0 1 0 0 1 2
358 Facsimile and Static Presentation Processing 0 0 0 0 2 2
380 Cryptography 0 0 0 1 1 2
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 1 1 0 0 2
423 Chemistry of Inorganic Compounds 1 0 1 0 0 2
431 Combustion 1 1 0 0 0 2
433 Dentistry 0 0 2 0 0 2
436 Chemistry: Analytical and Immunological Testing 1 0 0 1 0 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 0 0 1 0 2
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 0 2 2
463 Amusement Devices: Games 0 2 0 0 0 2
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 0 0 1 0 2
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 0 0 0 1 2
606 Surgery (instruments) 1 0 1 0 0 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 1 1 0 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 1 1 0 2
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 1 0 0 1 2
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 1 1 0 0 2
019 Textiles: Fiber Preparation 0 0 0 0 1 1
024 Buckles, Buttons, Clasps, Etc. 0 1 0 0 0 1
027 Undertaking 0 1 0 0 0 1
044 Fuel and Related Compositions 1 0 0 0 0 1
055 Gas Separation 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
089 Ordnance 0 0 0 0 1 1
096 Gas Separation: Apparatus 0 0 0 1 0 1
101 Printing 1 0 0 0 0 1
102 Ammunition and Explosives 1 0 0 0 0 1
104 Railways 0 0 0 0 1 1
131 Tobacco 0 1 0 0 0 1
134 Cleaning and Liquid Contact with Solids 1 0 0 0 0 1
135 Tent, Canopy, Umbrella, or Cane 1 0 0 0 0 1
162 Paper Making and Fiber Liberation 1 0 0 0 0 1
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 0 1 0 1
181 Acoustics 0 0 0 1 0 1
194 Check-Actuated Control Mechanisms 1 0 0 0 0 1
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 1 0 0 1
220 Receptacles 0 0 1 0 0 1
224 Package and Article Carriers 0 0 0 1 0 1
225 Severing by Tearing or Breaking 1 0 0 0 0 1
226 Advancing Material of Indeterminate Length 0 0 1 0 0 1
237 Heating Systems 1 0 0 0 0 1
244 Aeronautics and Astronautics 0 1 0 0 0 1
246 Railway Switches and Signals 0 0 0 0 1 1
256 Fences 1 0 0 0 0 1
267 Spring Devices 0 0 0 1 0 1
279 Chucks or Sockets 0 0 1 0 0 1
301 Land Vehicles: Wheels and Axles 0 0 1 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 1 1
313 Electric Lamp and Discharge Devices 1 0 0 0 0 1
320 Electricity: Battery or Capacitor Charging or Discharging 0 0 0 1 0 1
329 Demodulators 0 0 1 0 0 1
347 Incremental Printing of Symbolic Information 0 0 1 0 0 1
348 Television 0 1 0 0 0 1
363 Electric Power Conversion Systems 1 0 0 0 0 1
368 Horology: Time Measuring Systems or Devices 0 0 1 0 0 1
372 Coherent Light Generators 0 0 0 1 0 1
386 Television Signal Processing for Dynamic Recording or Reproducing 0 0 0 1 0 1
401 Coating Implements with Material Supply 0 0 0 1 0 1
408 Cutting by Use of Rotating Axially Moving Tool 1 0 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 0 0 1 0 1
450 Foundation Garments 0 0 1 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 0 1 1
476 Friction Gear Transmission Systems or Components 0 0 1 0 0 1
504 Plant Protecting and Regulating Compositions 0 1 0 0 0 1
585 Chemistry of Hydrocarbon Compounds 0 0 1 0 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 0 0 0 0 1
720 Dynamic Optical Information Storage or Retrieval 1 0 0 0 0 1
ALL ALL CLASSES 658 560 666 601 561 3046


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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

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