U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

Patenting By Geographic Region (State and Country), Breakout By Technology Class
Count of 1997 - 2001 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

DELAWARE

(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')
 
Class Class Title 1997 1998 1999 2000 2001 Total
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 70 58 69 77 73 347
532 Organic Compounds (includes Classes 532-570) 42 47 59 51 54 253
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 33 27 27 34 28 149
428 Stock Material or Miscellaneous Articles 24 26 33 18 23 124
435 Chemistry: Molecular Biology and Microbiology 11 12 13 19 28 83
106 Compositions: Coating or Plastic 6 14 8 12 5 45
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 7 14 9 7 6 43
252 Compositions 14 16 5 5 1 41
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 3 8 7 6 9 33
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 3 6 11 9 30
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 11 4 6 4 3 28
427 Coating Processes 5 6 7 6 4 28
504 Plant Protecting and Regulating Compositions 10 5 7 2 4 28
451 Abrading 1 1 2 7 9 20
162 Paper Making and Fiber Liberation 5 3 2 3 6 19
204 Chemistry: Electrical and Wave Energy 1 2 11 2 3 19
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 3 3 5 1 7 19
423 Chemistry of Inorganic Compounds 2 4 5 3 4 18
426 Food or Edible Material: Processes, Compositions, and Products 6 2 4 3 1 16
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 4 3 4 3 2 16
604 Surgery (Medicators and Receptors) 3 2 4 5 2 16
436 Chemistry: Analytical and Immunological Testing 0 7 2 4 1 14
095 Gas Separation: Processes 1 0 3 4 5 13
210 Liquid Purification or Separation 1 2 4 0 6 13
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 2 4 4 1 12
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 3 1 4 2 12
073 Measuring and Testing 4 3 3 0 1 11
585 Chemistry of Hydrocarbon Compounds 1 0 3 4 3 11
083 Cutting 0 4 1 2 3 10
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 3 3 2 1 1 10
096 Gas Separation: Apparatus 0 2 3 3 1 9
606 Surgery (instruments) 2 4 2 0 1 9
002 Apparel 2 2 1 2 1 8
359 Optics: Systems (Including Communication) and Elements 1 1 4 2 0 8
382 Image Analysis 3 1 1 2 1 8
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 2 3 3 0 8
055 Gas Separation 1 3 1 2 0 7
174 Electricity: Conductors and Insulators 1 4 0 0 2 7
219 Electric Heating 0 0 2 4 1 7
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 1 2 0 3 7
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 1 1 2 2 7
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 3 2 1 0 1 7
028 Textiles: Manufacturing 2 0 2 2 0 6
049 Movable or Removable Closures 0 3 2 1 0 6
118 Coating Apparatus 1 3 0 2 0 6
119 Animal Husbandry 1 1 1 2 1 6
250 Radiant Energy 1 1 1 1 2 6
285 Pipe Joints or Couplings 1 1 1 3 0 6
362 Illumination 0 1 2 1 2 6
385 Optical Waveguides 0 2 2 2 0 6
438 Semiconductor Device Manufacturing: Process 0 1 1 2 2 6
473 Games Using Tangible Projectile 1 1 1 2 1 6
501 Compositions: Ceramic 3 2 0 1 0 6
005 Beds 3 0 0 0 2 5
062 Refrigeration 1 3 0 0 1 5
128 Surgery (includes Class 600) 1 2 1 0 1 5
137 Fluid Handling 0 1 2 2 0 5
248 Supports (e.g., for holding articles, etc.) 1 0 1 1 2 5
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 4 0 1 0 5
340 Communications: Electrical 1 2 1 0 1 5
366 Agitating (e.g., of articles and materials) 0 2 1 1 1 5
505 Superconductor Technology: Apparatus, Material, Process 0 3 1 1 0 5
004 Baths, Closets, Sinks, and Spittoons 0 1 2 1 0 4
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 0 2 1 0 4
015 Brushing, Scrubbing, and General Cleaning 0 0 0 1 3 4
029 Metal Working 1 0 1 1 1 4
052 Static Structures (e.g., Buildings) 1 0 2 0 1 4
053 Package Making 0 0 2 2 0 4
074 Machine Element or Mechanism 2 1 0 0 1 4
101 Printing 1 1 1 0 1 4
136 Batteries: Thermoelectric and Photoelectric 0 0 0 2 2 4
160 Flexible or Portable Closure, Partition, or Panel 1 1 1 0 1 4
164 Metal Founding 0 0 2 0 2 4
203 Distillation: Processes, Separatory 0 1 2 1 0 4
206 Special Receptacle or Package 1 0 1 2 0 4
211 Supports: Racks 3 0 1 0 0 4
269 Work Holders 1 0 2 0 1 4
280 Land Vehicles 0 2 2 0 0 4
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 0 1 2 0 1 4
351 Optics: Eye Examining, Vision Testing and Correcting 2 0 1 1 0 4
356 Optics: Measuring and Testing 0 2 0 2 0 4
358 Facsimile and Static Presentation Processing 0 0 2 1 1 4
439 Electrical Connectors 2 0 0 1 1 4
024 Buckles, Buttons, Clasps, Etc. 0 0 1 1 1 3
043 Fishing, Trapping, and Vermin Destroying 0 1 2 0 0 3
099 Foods and Beverages: Apparatus 0 2 0 0 1 3
108 Horizontally Supported Planar Surfaces 0 0 2 0 1 3
149 Explosive and Thermic Compositions or Charges 1 2 0 0 0 3
165 Heat Exchange 0 0 0 1 2 3
216 Etching a Substrate: Processes 1 1 1 0 0 3
220 Receptacles 0 0 1 1 1 3
221 Article Dispensing 0 1 0 1 1 3
229 Envelopes, Wrappers, and Paperboard Boxes 0 0 1 2 0 3
242 Winding, Tensioning, or Guiding 0 0 0 3 0 3
244 Aeronautics 0 1 0 1 1 3
277 Seal for a Joint or Juncture 0 0 2 0 1 3
313 Electric Lamp and Discharge Devices 0 0 0 2 1 3
414 Material or Article Handling 1 2 0 0 0 3
432 Heating 0 1 1 1 0 3
482 Exercise Devices 2 1 0 0 0 3
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2 1 0 0 0 3
702 DP: Measuring, Calibrating, or Testing (Data Processing) 1 0 1 0 1 3
016 Miscellaneous Hardware 0 2 0 0 0 2
034 Drying and Gas or Vapor Contact with Solids 0 0 2 0 0 2
036 Boots, Shoes, and Leggings 1 0 1 0 0 2
040 Card, Picture, or Sign Exhibiting 1 0 0 0 1 2
047 Plant Husbandry 0 0 0 1 1 2
057 Textiles: Spinning, Twisting, and Twining 1 1 0 0 0 2
060 Power Plants 0 0 0 1 1 2
089 Ordnance 1 0 1 0 0 2
112 Sewing 1 0 0 0 1 2
123 Internal-Combustion Engines 0 0 1 0 1 2
188 Brakes 0 0 2 0 0 2
208 Mineral Oils: Processes and Products 1 0 0 1 0 2
226 Advancing Material of Indeterminate Length 0 0 1 0 1 2
246 Railway Switches and Signals 0 1 0 1 0 2
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 1 1 0 2
292 Closure Fasteners 0 0 0 2 0 2
294 Handling: Hand and Hoist-Line Implements 1 0 0 1 0 2
315 Electric Lamp and Discharge Devices: Systems 0 1 0 1 0 2
332 Modulators 0 0 1 0 1 2
361 Electricity: Electrical Systems and Devices 0 1 1 0 0 2
378 X-Ray or Gamma Ray Systems or Devices 0 1 0 1 0 2
417 Pumps 0 1 1 0 0 2
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 1 0 0 0 2
433 Dentistry 1 0 0 0 1 2
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 1 1 0 2
602 Surgery: Splint, Brace, or Bandage 1 1 0 0 0 2
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 1 1 2
706 DP: Artificial Intelligence (Data Processing) 1 1 0 0 0 2
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 1 0 0 1 2
001 ** Classification Undetermined ** 0 1 0 0 0 1
026 Textiles: Cloth Finishing 0 1 0 0 0 1
038 Textiles: Ironing or Smoothing 0 0 1 0 0 1
042 Firearms 0 0 1 0 0 1
056 Harvesters 0 0 0 0 1 1
072 Metal Deforming 0 0 0 0 1 1
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 0 0 0 0 1
076 Metal Tools and Implements, Making 1 0 0 0 0 1
102 Ammunition and Explosives 0 1 0 0 0 1
114 Ships 1 0 0 0 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 1 0 0 0 1
132 Toilet 0 1 0 0 0 1
138 Pipes and Tubular Conduits 0 0 0 0 1 1
148 Metal Treatment 1 0 0 0 0 1
181 Acoustics 0 1 0 0 0 1
182 Fire Escape, Ladder, or Scaffold 0 0 0 1 0 1
184 Lubrication 0 0 0 1 0 1
213 Railway Draft Appliances 0 1 0 0 0 1
215 Bottles and Jars 0 1 0 0 0 1
223 Apparel Apparatus 0 1 0 0 0 1
224 Package and Article Carriers 0 0 0 0 1 1
228 Metal Fusion Bonding 0 0 0 1 0 1
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 0 1 0 0 1
236 Automatic Temperature and Humidity Regulation 0 1 0 0 0 1
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 1 0 0 1
251 Valves and Valve Actuation 0 0 0 1 0 1
266 Metallurgical Apparatus 1 0 0 0 0 1
281 Books, Strips, and Leaves 0 0 1 0 0 1
283 Printed Matter 0 1 0 0 0 1
318 Electricity: Motive Power Systems 0 0 1 0 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 1 0 0 0 1
336 Inductor Devices 0 1 0 0 0 1
343 Communications: Radio Wave Antennas 0 1 0 0 0 1
348 Television 0 0 0 0 1 1
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 1 1
355 Photocopying 0 0 1 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 1 0 1
368 Horology: Time Measuring Systems or Devices 1 0 0 0 0 1
370 Multiplex Communications 0 1 0 0 0 1
372 Coherent Light Generators 0 0 1 0 0 1
374 Thermal Measuring and Testing 0 0 0 1 0 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 0 1 1
396 Photography 0 1 0 0 0 1
405 Hydraulic and Earth Engineering 1 0 0 0 0 1
419 Powder Metallurgy Processes 0 1 0 0 0 1
431 Combustion 1 0 0 0 0 1
434 Education and Demonstration 0 1 0 0 0 1
440 Marine Propulsion 1 0 0 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 0 1 1
446 Amusement Devices: Toys 0 0 0 1 0 1
454 Ventilation 0 1 0 0 0 1
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 1 0 0 1
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 0 0 0 0 1
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 0 0 1 1
512 Perfume Compositions 1 0 0 0 0 1
588 Hazardous or Toxic Waste Destruction or Containment 1 0 0 0 0 1
607 Surgery: Light, Thermal, and Electrical Application 1 0 0 0 0 1
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 1 0 0 0 0 1
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 1 0 0 0 0 1
708 Arithmetic Processing and Calculating (Electrical Computers) 0 0 0 0 1 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
ALL ALL CLASSES 357 394 417 395 381 1944



TAF Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Information Products Division - TAF Branch
PK3- Suite 441
Washington, DC 20231

tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov

address of TAF Internet pages : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of TAF reports from : ftp.uspto.gov/pub/taf/

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Last Modified: April 9, 2002