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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

DELAWARE

( 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
532 Organic Compounds (includes Classes 532-570) 42 35 44 36 41 198
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 45 40 40 22 27 174
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 38 37 37 25 32 169
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 17 27 23 27 15 109
435 Chemistry: Molecular Biology and Microbiology 15 9 27 28 17 96
428 Stock Material or Miscellaneous Articles 17 22 15 18 17 89
252 Compositions 7 6 7 9 14 43
451 Abrading 10 12 10 4 5 41
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 7 10 5 8 9 39
106 Compositions: Coating or Plastic 3 3 7 4 13 30
438 Semiconductor Device Manufacturing: Process 4 3 5 6 5 23
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 1 3 2 7 8 21
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 5 2 4 3 6 20
324 Electricity: Measuring and Testing 1 1 6 8 4 20
250 Radiant Energy 4 2 2 3 5 16
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 1 1 6 6 2 16
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 4 4 4 2 2 16
210 Liquid Purification or Separation 5 2 4 1 3 15
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 2 3 4 4 15
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 4 3 4 2 14
356 Optics: Measuring and Testing 3 1 2 6 2 14
119 Animal Husbandry 2 2 4 3 2 13
427 Coating Processes 3 5 0 3 2 13
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 1 2 3 2 4 12
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 3 1 3 2 3 12
436 Chemistry: Analytical and Immunological Testing 1 2 2 5 2 12
095 Gas Separation: Processes 2 3 3 0 3 11
423 Chemistry of Inorganic Compounds 1 2 2 3 3 11
504 Plant Protecting and Regulating Compositions 5 1 3 1 0 10
702 DP: Measuring, Calibrating, or Testing (Data Processing) 4 1 2 1 2 10
073 Measuring and Testing 1 2 2 1 3 9
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 4 0 2 1 8
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 1 1 2 2 2 8
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 3 0 1 4 0 8
604 Surgery (Medicators and Receptors) 5 0 1 1 1 8
162 Paper Making and Fiber Liberation 4 0 0 3 0 7
219 Electric Heating 0 4 1 2 0 7
052 Static Structures (e.g., Buildings) 1 2 1 0 2 6
057 Textiles: Spinning, Twisting, and Twining 0 2 1 3 0 6
083 Cutting 3 1 0 2 0 6
089 Ordnance 2 1 1 2 0 6
204 Chemistry: Electrical and Wave Energy 0 2 2 0 2 6
385 Optical Waveguides 1 1 1 2 1 6
426 Food or Edible Material: Processes, Compositions, and Products 0 1 1 2 2 6
501 Compositions: Ceramic 0 2 3 0 1 6
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 3 1 0 1 1 6
005 Beds 2 1 2 0 0 5
051 Abrasive Tool Making Process, Material, or Composition 4 0 0 1 0 5
062 Refrigeration 2 0 2 1 0 5
128 Surgery (includes Class 600) 1 2 2 0 0 5
239 Fluid Sprinkling, Spraying, and Diffusing 1 2 1 1 0 5
280 Land Vehicles 1 1 2 1 0 5
313 Electric Lamp and Discharge Devices 0 0 2 1 2 5
347 Incremental Printing of Symbolic Information 2 2 0 1 0 5
358 Facsimile and Static Presentation Processing 2 0 1 2 0 5
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 1 1 1 1 5
585 Chemistry of Hydrocarbon Compounds 1 0 1 2 1 5
004 Baths, Closets, Sinks, and Spittoons 2 0 1 1 0 4
137 Fluid Handling 1 0 1 0 2 4
345 Computer Graphics Processing and Selective Visual Display Systems 2 1 1 0 0 4
362 Illumination 1 0 0 1 2 4
434 Education and Demonstration 2 0 0 2 0 4
473 Games Using Tangible Projectile 0 2 2 0 0 4
482 Exercise Devices 1 1 0 1 1 4
505 Superconductor Technology: Apparatus, Material, Process 1 3 0 0 0 4
002 Apparel 1 0 1 0 1 3
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 1 1 1 0 3
029 Metal Working 0 1 0 1 1 3
047 Plant Husbandry 1 1 1 0 0 3
096 Gas Separation: Apparatus 0 0 0 0 3 3
099 Foods and Beverages: Apparatus 0 0 1 0 2 3
164 Metal Founding 1 0 2 0 0 3
174 Electricity: Conductors and Insulators 0 2 1 0 0 3
292 Closure Fasteners 0 1 0 2 0 3
333 Wave Transmission Lines and Networks 0 0 0 1 2 3
340 Communications: Electrical 0 0 2 0 1 3
366 Agitating (e.g., of articles and materials) 1 1 0 1 0 3
370 Multiplex Communications 0 1 0 1 1 3
606 Surgery (instruments) 1 1 0 0 1 3
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 1 2 3
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 0 1 1 1 0 3
024 Buckles, Buttons, Clasps, Etc. 2 0 0 0 0 2
028 Textiles: Manufacturing 0 1 1 0 0 2
034 Drying and Gas or Vapor Contact with Solids 1 1 0 0 0 2
036 Boots, Shoes, and Leggings 1 1 0 0 0 2
043 Fishing, Trapping, and Vermin Destroying 2 0 0 0 0 2
044 Fuel and Related Compositions 1 0 0 1 0 2
070 Locks 0 0 1 1 0 2
118 Coating Apparatus 0 0 2 0 0 2
138 Pipes and Tubular Conduits 0 1 1 0 0 2
139 Textiles: Weaving 0 0 1 1 0 2
203 Distillation: Processes, Separatory 0 1 0 0 1 2
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 0 0 0 1 2
208 Mineral Oils: Processes and Products 1 0 0 0 1 2
216 Etching a Substrate: Processes 1 0 0 1 0 2
222 Dispensing (apparatus and process) 1 0 0 1 0 2
273 Amusement Devices: Games 0 0 1 1 0 2
290 Prime-Mover Dynamo Plants 1 1 0 0 0 2
301 Land Vehicles: Wheels and Axles 0 0 1 1 0 2
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 1 0 1 2
359 Optical: Systems and Elements 0 1 0 1 0 2
361 Electricity: Electrical Systems and Devices 0 0 0 0 2 2
372 Coherent Light Generators 0 0 0 1 1 2
374 Thermal Measuring and Testing 0 1 1 0 0 2
379 Telephonic Communications 2 0 0 0 0 2
414 Material or Article Handling 0 0 0 2 0 2
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 2 0 0 0 0 2
433 Dentistry 1 0 0 0 1 2
439 Electrical Connectors 0 0 2 0 0 2
440 Marine Propulsion 1 1 0 0 0 2
463 Amusement Devices: Games 2 0 0 0 0 2
602 Surgery: Splint, Brace, or Bandage 0 0 1 0 1 2
706 DP: Artificial Intelligence (Data Processing) 0 1 1 0 0 2
713 Support (Electrical Computers and Digital Processing Systems) 1 0 0 0 1 2
714 Error Detection/Correction and Fault Detection/Recovery 0 1 0 0 1 2
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 1 0 1 2
726 Information Security 0 0 0 2 0 2
014 Bridges 0 1 0 0 0 1
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 1 1
019 Textiles: Fiber Preparation 0 0 0 0 1 1
033 Geometrical Instruments 0 0 0 1 0 1
042 Firearms 0 0 1 0 0 1
049 Movable or Removable Closures 0 1 0 0 0 1
053 Package Making 0 0 0 0 1 1
055 Gas Separation 1 0 0 0 0 1
056 Harvesters 0 0 0 1 0 1
059 Chain, Staple, and Horseshoe Making 0 0 0 1 0 1
066 Textiles: Knitting 0 1 0 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
076 Metal Tools and Implements, Making 0 0 0 1 0 1
081 Tools 0 0 1 0 0 1
084 Music 0 1 0 0 0 1
100 Presses 0 0 0 0 1 1
101 Printing 0 0 0 1 0 1
102 Ammunition and Explosives 0 0 0 0 1 1
105 Railway Rolling Stock 0 0 0 1 0 1
108 Horizontally Supported Planar Surfaces 1 0 0 0 0 1
134 Cleaning and Liquid Contact with Solids 0 0 0 1 0 1
136 Batteries: Thermoelectric and Photoelectric 0 0 0 0 1 1
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 1 0 0 0 0 1
165 Heat Exchange 0 0 1 0 0 1
169 Fire Extinguishers 0 0 0 0 1 1
181 Acoustics 0 1 0 0 0 1
182 Fire Escape, Ladder, or Scaffold 0 1 0 0 0 1
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 0 1 0 1
206 Special Receptacle or Package 0 0 0 1 0 1
209 Classifying, Separating, and Assorting Solids 0 0 0 0 1 1
211 Supports: Racks 0 1 0 0 0 1
217 Wooden Receptacles 0 1 0 0 0 1
220 Receptacles 0 0 0 0 1 1
225 Severing by Tearing or Breaking 1 0 0 0 0 1
228 Metal Fusion Bonding 0 1 0 0 0 1
236 Automatic Temperature and Humidity Regulation 0 0 1 0 0 1
241 Solid Material Comminution or Disintegration 0 0 1 0 0 1
242 Winding, Tensioning, or Guiding 0 0 0 1 0 1
244 Aeronautics and Astronautics 0 0 0 0 1 1
248 Supports (e.g., for holding articles, etc.) 0 0 0 0 1 1
261 Gas and Liquid Contact Apparatus 1 0 0 0 0 1
271 Sheet Feeding or Delivering 0 0 0 1 0 1
294 Handling: Hand and Hoist-Line Implements 0 0 0 0 1 1
297 Chairs and Seats 1 0 0 0 0 1
312 Supports: Cabinet Structure 0 0 1 0 0 1
315 Electric Lamp and Discharge Devices: Systems 0 0 0 0 1 1
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 0 1 0 0 1
368 Horology: Time Measuring Systems or Devices 0 0 1 0 0 1
375 Pulse or Digital Communications 0 0 1 0 0 1
378 X-Ray or Gamma Ray Systems or Devices 1 0 0 0 0 1
382 Image Analysis 1 0 0 0 0 1
383 Flexible Bags 0 0 0 1 0 1
384 Bearings 0 0 1 0 0 1
392 Electric Resistance Heating Devices 0 0 1 0 0 1
396 Photography 0 0 1 0 0 1
401 Coating Implements with Material Supply 0 1 0 0 0 1
415 Rotary Kinetic Fluid Motors or Pumps 0 0 1 0 0 1
417 Pumps 0 0 1 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 1 0 0 1
446 Amusement Devices: Toys 0 0 1 0 0 1
452 Butchering 0 1 0 0 0 1
455 Telecommunications 1 0 0 0 0 1
474 Endless Belt Power Transmission Systems or Components 0 0 0 1 0 1
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 0 1 0 0 1
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 1 0 0 0 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 0 1 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 0 1 0 1
601 Surgery: Kinesitherapy 1 0 0 0 0 1
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 0 0 1 1
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 1 1
708 Arithmetic Processing and Calculating (Electrical Computers) 0 0 0 0 1 1
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 1
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 0 1 1
ALL ALL CLASSES 342 318 357 330 325 1672


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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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