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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

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

Count of 2000 - 2004 Utility Patent Grants,
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 the patent- see 'Explanation of Data' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 2000 2001 2002 2003 2004 Total
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 61 121 46 76 96 400
435 Chemistry: Molecular Biology and Microbiology 13 25 20 21 19 98
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 16 21 20 19 16 92
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 10 16 16 14 8 64
056 Harvesters 12 14 10 17 10 63
052 Static Structures (e.g., Buildings) 13 14 12 10 11 60
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 6 13 11 9 15 54
172 Earth Working 7 13 8 8 13 49
532 Organic Compounds (includes Classes 532-570) 9 6 11 12 8 46
361 Electricity: Electrical Systems and Devices 4 6 15 12 8 45
280 Land Vehicles 3 16 10 6 8 43
426 Food or Edible Material: Processes, Compositions, and Products 6 6 7 10 10 39
137 Fluid Handling 10 12 5 3 8 38
345 Computer Graphics Processing and Selective Visual Display Systems 5 8 9 8 7 37
702 DP: Measuring, Calibrating, or Testing (Data Processing) 6 4 7 10 7 34
062 Refrigeration 1 7 4 7 13 32
073 Measuring and Testing 8 8 3 7 6 32
175 Boring or Penetrating the Earth 2 5 11 8 6 32
414 Material or Article Handling 7 10 5 5 5 32
180 Motor Vehicles 3 4 13 9 2 31
296 Land Vehicles: Bodies and Tops 5 9 5 4 8 31
128 Surgery (includes Class 600) 7 6 8 4 5 30
241 Solid Material Comminution or Disintegration 11 4 10 4 0 29
452 Butchering 8 7 1 11 2 29
248 Supports (e.g., for holding articles, etc.) 4 10 5 7 2 28
379 Telephonic Communications 5 5 10 3 5 28
060 Power Plants 5 4 8 7 3 27
111 Planting 2 7 4 8 6 27
210 Liquid Purification or Separation 5 3 9 4 6 27
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 6 4 12 3 26
340 Communications: Electrical 4 9 5 2 6 26
370 Multiplex Communications 4 2 9 5 5 25
119 Animal Husbandry 5 8 4 3 4 24
219 Electric Heating 7 3 2 3 6 21
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 8 4 1 2 6 21
324 Electricity: Measuring and Testing 4 6 4 3 4 21
362 Illumination 3 6 7 0 5 21
455 Telecommunications 1 3 3 5 9 21
092 Expansible Chamber Devices 2 7 2 2 7 20
343 Communications: Radio Wave Antennas 3 5 3 5 4 20
473 Games Using Tangible Projectile 4 6 6 1 3 20
700 DP: Generic Control Systems or Specific Applications (Data Processing) 4 4 4 3 5 20
043 Fishing, Trapping, and Vermin Destroying 7 5 0 4 2 18
428 Stock Material or Miscellaneous Articles 5 6 1 2 4 18
482 Exercise Devices 3 5 7 3 0 18
029 Metal Working 3 4 2 5 3 17
081 Tools 4 2 2 5 4 17
297 Chairs and Seats 6 3 0 2 6 17
375 Pulse or Digital Communications 3 3 3 2 6 17
037 Excavating 4 1 3 2 6 16
160 Flexible or Portable Closure, Partition, or Panel 2 2 1 4 7 16
239 Fluid Sprinkling, Spraying, and Diffusing 5 0 1 3 7 16
341 Coded Data Generation or Conversion 1 4 5 3 3 16
417 Pumps 6 4 1 2 3 16
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 3 4 2 2 5 16
709 Multicomputer Data Transferring or Plural Processor Synchronization (Electrical Computers and Digital Processing Systems) 5 5 2 1 3 16
034 Drying and Gas or Vapor Contact with Solids 6 3 3 1 2 15
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 5 2 6 2 0 15
460 Crop Threshing or Separating 3 7 1 2 2 15
070 Locks 1 4 2 4 3 14
206 Special Receptacle or Package 4 4 1 4 1 14
312 Supports: Cabinet Structure 7 1 3 0 3 14
068 Textiles: Fluid Treating Apparatus 3 3 3 2 2 13
114 Ships 1 0 2 2 8 13
123 Internal-Combustion Engines 2 5 3 2 1 13
439 Electrical Connectors 3 2 4 2 2 13
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 3 2 1 5 2 13
033 Geometrical Instruments 3 4 1 1 3 12
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 3 3 1 3 2 12
250 Radiant Energy 2 3 2 4 1 12
292 Closure Fasteners 2 1 3 2 4 12
434 Education and Demonstration 2 6 1 2 1 12
446 Amusement Devices: Toys 2 4 0 3 3 12
707 DP: Database and File Management or Data Structures (Data Processing) 1 0 5 3 3 12
016 Miscellaneous Hardware 3 0 4 3 1 11
053 Package Making 0 0 0 9 2 11
074 Machine Element or Mechanism 0 4 1 1 5 11
174 Electricity: Conductors and Insulators 1 3 2 3 2 11
330 Amplifiers 0 2 2 1 6 11
356 Optics: Measuring and Testing 1 1 3 3 3 11
403 Joints and Connections 1 4 2 3 1 11
451 Abrading 4 5 0 2 0 11
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 1 7 0 2 11
047 Plant Husbandry 1 7 1 1 0 10
091 Motors: Expansible Chamber Type 0 6 1 2 1 10
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 2 1 0 5 2 10
221 Article Dispensing 2 4 2 1 1 10
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 2 1 2 4 10
381 Electrical Audio Signal Processing Systems and Devices 2 0 1 2 5 10
604 Surgery (Medicators and Receptors) 1 5 2 0 2 10
606 Surgery (instruments) 3 2 3 1 1 10
607 Surgery: Light, Thermal, and Electrical Application 2 2 4 2 0 10
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 1 0 3 3 3 10
005 Beds 1 1 1 3 3 9
042 Firearms 0 3 2 2 2 9
049 Movable or Removable Closures 1 4 3 0 1 9
200 Electricity: Circuit Makers and Breakers 0 3 2 3 1 9
318 Electricity: Motive Power Systems 2 3 1 1 2 9
331 Oscillators 0 0 3 4 2 9
404 Road Structure, Process, or Apparatus 6 0 1 2 0 9
405 Hydraulic and Earth Engineering 0 4 1 3 1 9
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 1 3 1 2 9
002 Apparel 2 1 1 3 1 8
015 Brushing, Scrubbing, and General Cleaning 2 0 2 2 2 8
095 Gas Separation: Processes 0 0 3 2 3 8
198 Conveyors: Power-Driven 1 0 5 1 1 8
204 Chemistry: Electrical and Wave Energy 2 1 3 0 2 8
310 Electrical Generator or Motor Structure 3 0 1 3 1 8
320 Electricity: Battery or Capacitor Charging or Discharging 4 4 0 0 0 8
349 Liquid Crystal Cells, Elements and Systems 1 2 2 1 2 8
454 Ventilation 1 2 1 2 2 8
475 Planetary Gear Transmission Systems or Components 0 1 3 1 3 8
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2 3 1 1 1 8
711 Memory (Electrical Computers and Digital Processing Systems) 3 1 0 2 2 8
100 Presses 1 0 0 2 4 7
118 Coating Apparatus 1 0 0 3 3 7
164 Metal Founding 1 0 3 3 0 7
184 Lubrication 2 1 2 2 0 7
244 Aeronautics 2 0 1 4 0 7
249 Static Molds 0 1 0 3 3 7
269 Work Holders 2 0 3 2 0 7
273 Amusement Devices: Games 1 2 2 1 1 7
348 Television 0 2 5 0 0 7
365 Static Information Storage and Retrieval 2 1 1 1 2 7
415 Rotary Kinetic Fluid Motors or Pumps 1 1 1 2 2 7
418 Rotary Expansible Chamber Devices 2 1 1 2 1 7
427 Coating Processes 2 2 0 2 1 7
717 DP: Software Development, Installation, and Management (Data Processing) 3 2 2 0 0 7
004 Baths, Closets, Sinks, and Spittoons 0 1 3 1 1 6
148 Metal Treatment 0 4 0 1 1 6
162 Paper Making and Fiber Liberation 1 0 2 2 1 6
182 Fire Escape, Ladder, or Scaffold 1 2 1 0 2 6
211 Supports: Racks 0 2 2 1 1 6
220 Receptacles 1 1 2 2 0 6
224 Package and Article Carriers 3 3 0 0 0 6
252 Compositions 2 0 1 2 1 6
305 Wheel Substitutes for Land Vehicles 2 2 0 2 0 6
326 Electronic Digital Logic Circuitry 0 0 1 2 3 6
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 3 0 1 1 1 6
382 Image Analysis 1 0 3 2 0 6
410 Freight Accommodation On Freight Carrier 2 1 2 1 0 6
436 Chemistry: Analytical and Immunological Testing 2 1 0 2 1 6
438 Semiconductor Device Manufacturing: Process 1 1 2 2 0 6
440 Marine Propulsion 0 1 1 1 3 6
477 Interrelated Power Delivery Controls, Including Engine Control 2 1 0 3 0 6
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 1 0 4 0 6
072 Metal Deforming 1 1 2 0 1 5
101 Printing 0 0 3 1 1 5
106 Compositions: Coating or Plastic 1 1 2 0 1 5
108 Horizontally Supported Planar Surfaces 0 1 1 1 2 5
134 Cleaning and Liquid Contact with Solids 0 3 0 1 1 5
144 Woodworking 1 0 0 1 3 5
165 Heat Exchange 0 0 0 4 1 5
209 Classifying, Separating, and Assorting Solids 0 1 3 0 1 5
251 Valves and Valve Actuation 0 0 0 1 4 5
256 Fences 1 0 2 1 1 5
277 Seal for a Joint or Juncture 0 1 1 2 1 5
307 Electrical Transmission or Interconnection Systems 2 1 1 1 0 5
313 Electric Lamp and Discharge Devices 0 1 1 2 1 5
353 Optics: Image Projectors 1 0 1 3 0 5
359 Optics: Systems and Elements 0 1 2 1 1 5
363 Electric Power Conversion Systems 1 1 0 2 1 5
408 Cutting by Use of Rotating Axially Moving Tool 1 0 3 0 1 5
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 2 0 2 1 5
433 Dentistry 0 2 1 2 0 5
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 3 0 0 1 5
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 2 1 0 1 5
602 Surgery: Splint, Brace, or Bandage 2 1 2 0 0 5
713 Support (Electrical Computers and Digital Processing Systems) 1 2 1 0 1 5
725 Interactive Video Distribution Systems 0 1 1 1 2 5
099 Foods and Beverages: Apparatus 0 2 2 0 0 4
126 Stoves and Furnaces 1 0 0 2 1 4
132 Toilet 1 1 1 0 1 4
157 Wheelwright Machines 1 2 0 0 1 4
188 Brakes 2 1 0 0 1 4
229 Envelopes, Wrappers, and Paperboard Boxes 0 1 2 0 1 4
294 Handling: Hand and Hoist-Line Implements 0 1 2 1 0 4
298 Land Vehicles: Dumping 2 1 1 0 0 4
303 Fluid-Pressure and Analogous Brake Systems 0 2 1 1 0 4
409 Gear Cutting, Milling, or Planing 1 2 1 0 0 4
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 2 0 1 1 0 4
423 Chemistry of Inorganic Compounds 0 3 0 0 1 4
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 2 2 4
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 2 2 0 4
708 Arithmetic Processing and Calculating (Electrical Computers) 1 1 0 1 1 4
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 2 2 4
036 Boots, Shoes, and Leggings 0 1 2 0 0 3
040 Card, Picture, or Sign Exhibiting 0 0 1 1 1 3
044 Fuel and Related Compositions 0 0 0 2 1 3
084 Music 2 0 1 0 0 3
112 Sewing 2 0 1 0 0 3
127 Sugar, Starch, and Carbohydrates 0 2 1 0 0 3
138 Pipes and Tubular Conduits 2 0 0 0 1 3
177 Weighing Scales 0 1 1 0 1 3
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 1 1 0 0 3
215 Bottles and Jars 1 1 0 1 0 3
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 1 2 0 3
222 Dispensing (apparatus and process) 1 1 1 0 0 3
236 Automatic Temperature and Humidity Regulation 0 0 2 1 0 3
242 Winding, Tensioning, or Guiding 2 0 1 0 0 3
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 0 2 1 3
266 Metallurgical Apparatus 2 0 1 0 0 3
267 Spring Devices 0 0 2 1 0 3
285 Pipe Joints or Couplings 0 0 0 1 2 3
300 Brush, Broom, and Mop Making 0 0 3 0 0 3
301 Land Vehicles: Wheels and Axles 0 2 0 1 0 3
315 Electric Lamp and Discharge Devices: Systems 1 0 1 0 1 3
333 Wave Transmission Lines and Networks 1 2 0 0 0 3
366 Agitating (e.g., of articles and materials) 1 0 0 1 1 3
401 Coating Implements with Material Supply 0 2 1 0 0 3
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 2 1 0 0 3
463 Amusement Devices: Games 1 1 0 1 0 3
501 Compositions: Ceramic 0 2 1 0 0 3
030 Cutlery 1 0 0 1 0 2
051 Abrasive Tool Making Process, Material, or Composition 1 0 0 0 1 2
055 Gas Separation 0 0 0 1 1 2
071 Chemistry: Fertilizers 1 0 1 0 0 2
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 2 0 0 0 0 2
083 Cutting 0 0 0 1 1 2
096 Gas Separation: Apparatus 1 0 1 0 0 2
102 Ammunition and Explosives 1 0 0 0 1 2
124 Mechanical Guns and Projectors 1 0 1 0 0 2
150 Purses, Wallets, and Protective Covers 0 1 0 0 1 2
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 1 0 0 0 2
181 Acoustics 0 0 1 1 0 2
192 Clutches and Power-Stop Control 0 0 0 1 1 2
212 Traversing Hoists 1 0 0 0 1 2
226 Advancing Material of Indeterminate Length 0 1 1 0 0 2
232 Deposit and Collection Receptacles 1 0 0 0 1 2
237 Heating Systems 0 1 0 0 1 2
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 1 1 2
290 Prime-Mover Dynamo Plants 0 1 0 0 1 2
323 Electricity: Power Supply or Regulation Systems 1 1 0 0 0 2
351 Optics: Eye Examining, Vision Testing and Correcting 0 1 0 0 1 2
358 Facsimile and Static Presentation Processing 0 0 0 2 0 2
360 Dynamic Magnetic Information Storage or Retrieval 2 0 0 0 0 2
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 2 0 0 0 0 2
378 X-Ray or Gamma Ray Systems or Devices 1 0 0 1 0 2
384 Bearings 0 0 0 2 0 2
385 Optical Waveguides 1 0 0 0 1 2
386 Television Signal Processing for Dynamic Recording or Reproducing 0 0 1 1 0 2
398 Optical Communications 1 0 0 1 0 2
406 Conveyors: Fluid Current 0 2 0 0 0 2
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 1 0 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 1 1 2
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 0 1 1 0 0 2
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 1 0 0 1 0 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 0 1 0 0 2
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 0 2 0 0 2
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 1 1 0 2
014 Bridges 0 0 0 1 0 1
024 Buckles, Buttons, Clasps, Etc. 0 0 1 0 0 1
057 Textiles: Spinning, Twisting, and Twining 1 0 0 0 0 1
076 Metal Tools and Implements, Making 0 0 0 1 0 1
105 Railway Rolling Stock 0 1 0 0 0 1
110 Furnaces 0 1 0 0 0 1
116 Signals and Indicators 1 0 0 0 0 1
122 Liquid Heaters and Vaporizers 1 0 0 0 0 1
135 Tent, Canopy, Umbrella, or Cane 0 0 0 0 1 1
171 Unearthing Plants or Buried Objects 0 0 0 0 1 1
173 Tool Driving or Impacting 0 0 1 0 0 1
178 Telegraphy 0 0 0 1 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 1 0 0 0 0 1
190 Trunks and Hand-Carried Luggage 0 1 0 0 0 1
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 0 0 1 1
194 Check-Actuated Control Mechanisms 0 0 0 0 1 1
223 Apparel Apparatus 0 1 0 0 0 1
225 Severing by Tearing or Breaking 0 0 0 0 1 1
228 Metal Fusion Bonding 0 0 1 0 0 1
246 Railway Switches and Signals 0 0 1 0 0 1
279 Chucks or Sockets 0 0 1 0 0 1
299 Mining or In Situ Disintegration of Hard Material 0 1 0 0 0 1
373 Industrial Electric Heating Furnaces 1 0 0 0 0 1
383 Flexible Bags 0 0 0 1 0 1
392 Electric Resistance Heating Devices 1 0 0 0 0 1
400 Typewriting Machines 1 0 0 0 0 1
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 1 0 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 0 1 0 1
419 Powder Metallurgy Processes 0 1 0 0 0 1
431 Combustion 0 0 0 0 1 1
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 0 0 0 1 1
453 Coin Handling 1 0 0 0 0 1
462 Books, Strips, and Leaves for Manifolding 0 0 1 0 0 1
474 Endless Belt Power Transmission Systems or Components 1 0 0 0 0 1
492 Roll or Roller 0 1 0 0 0 1
504 Plant Protecting and Regulating Compositions 1 0 0 0 0 1
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 1 0 1
588 Hazardous or Toxic Waste Destruction or Containment 0 1 0 0 0 1
720 Dynamic Optical Information Storage or Retrieval 0 0 0 0 1 1
ALL ALL CLASSES 589 751 630 665 658 3293


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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

address of PTMD pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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