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 1996 - 2000 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 1996 1997 1998 1999 2000 Total
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 68 70 58 69 77 342
532 Organic Compounds (includes Classes 532-570) 70 42 47 59 51 269
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 40 33 27 27 34 161
428 Stock Material or Miscellaneous Articles 29 24 26 33 17 129
435 Chemistry: Molecular Biology and Microbiology 12 11 12 14 19 68
252 Compositions 14 14 16 5 5 54
106 Compositions: Coating or Plastic 6 6 14 8 12 46
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 9 7 14 9 7 46
427 Coating Processes 10 5 6 7 6 34
504 Plant Protecting and Regulating Compositions 8 10 5 7 2 32
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 7 11 4 6 3 31
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 7 3 8 7 6 31
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 5 1 3 6 11 26
423 Chemistry of Inorganic Compounds 7 2 4 5 3 21
204 Chemistry: Electrical and Wave Energy 4 1 2 11 2 20
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 6 4 3 4 3 20
426 Food or Edible Material: Processes, Compositions, and Products 4 6 2 4 3 19
604 Surgery (Medicators and Receptors) 5 3 2 4 5 19
436 Chemistry: Analytical and Immunological Testing 3 0 7 2 4 16
162 Paper Making and Fiber Liberation 2 5 3 2 3 15
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 4 3 3 4 1 15
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 3 1 2 4 4 14
073 Measuring and Testing 3 4 3 3 0 13
164 Metal Founding 11 0 0 2 0 13
451 Abrading 2 1 1 2 7 13
210 Liquid Purification or Separation 5 1 2 4 0 12
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 2 3 1 4 12
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 3 3 2 1 11
585 Chemistry of Hydrocarbon Compounds 3 1 0 3 4 11
606 Surgery (instruments) 3 2 4 2 0 11
002 Apparel 3 2 2 1 2 10
359 Optics: Systems (Including Communication) and Elements 1 1 1 4 2 9
382 Image Analysis 2 3 1 1 2 9
501 Compositions: Ceramic 3 3 2 0 1 9
028 Textiles: Manufacturing 2 2 0 2 2 8
055 Gas Separation 1 1 3 1 2 8
083 Cutting 1 0 4 1 2 8
095 Gas Separation: Processes 0 1 0 3 4 8
096 Gas Separation: Apparatus 0 0 2 3 3 8
137 Fluid Handling 3 0 1 2 2 8
505 Superconductor Technology: Apparatus, Material, Process 3 0 3 1 1 8
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 2 3 3 8
049 Movable or Removable Closures 1 0 3 2 1 7
174 Electricity: Conductors and Insulators 2 1 4 0 0 7
219 Electric Heating 1 0 0 2 4 7
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 3 2 1 0 7
118 Coating Apparatus 0 1 3 0 2 6
119 Animal Husbandry 1 1 1 1 2 6
285 Pipe Joints or Couplings 0 1 1 1 3 6
385 Optical Waveguides 0 0 2 2 2 6
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 1 1 1 3 6
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 1 0 2 1 5
062 Refrigeration 1 1 3 0 0 5
128 Surgery (includes Class 600) 1 1 2 1 0 5
206 Special Receptacle or Package 1 1 0 1 2 5
208 Mineral Oils: Processes and Products 3 1 0 0 1 5
211 Supports: Racks 1 3 0 1 0 5
250 Radiant Energy 1 1 1 1 1 5
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 4 0 1 5
277 Seal for a Joint or Juncture 3 0 0 2 0 5
340 Communications: Electrical 1 1 2 1 0 5
366 Agitating (e.g., of articles and materials) 1 0 2 1 1 5
473 Games Using Tangible Projectile 0 1 1 1 2 5
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2 2 1 0 0 5
004 Baths, Closets, Sinks, and Spittoons 0 0 1 2 1 4
034 Drying and Gas or Vapor Contact with Solids 2 0 0 2 0 4
043 Fishing, Trapping, and Vermin Destroying 1 0 1 2 0 4
047 Plant Husbandry 3 0 0 0 1 4
052 Static Structures (e.g., Buildings) 1 1 0 2 0 4
053 Package Making 0 0 0 2 2 4
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 3 1 0 0 0 4
149 Explosive and Thermic Compositions or Charges 1 1 2 0 0 4
160 Flexible or Portable Closure, Partition, or Panel 1 1 1 1 0 4
203 Distillation: Processes, Separatory 0 0 1 2 1 4
229 Envelopes, Wrappers, and Paperboard Boxes 1 0 0 1 2 4
244 Aeronautics 2 0 1 0 1 4
248 Supports (e.g., for holding articles, etc.) 1 1 0 1 1 4
280 Land Vehicles 0 0 2 2 0 4
351 Optics: Eye Examining, Vision Testing and Correcting 0 2 0 1 1 4
356 Optics: Measuring and Testing 0 0 2 0 2 4
358 Facsimile and Static Presentation Processing 1 0 0 2 1 4
362 Illumination 0 0 1 2 1 4
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 1 1 2 0 4
414 Material or Article Handling 1 1 2 0 0 4
432 Heating 1 0 1 1 1 4
438 Semiconductor Device Manufacturing: Process 0 0 1 1 2 4
439 Electrical Connectors 1 2 0 0 1 4
482 Exercise Devices 1 2 1 0 0 4
602 Surgery: Splint, Brace, or Bandage 2 1 1 0 0 4
005 Beds 0 3 0 0 0 3
029 Metal Working 0 1 0 1 1 3
057 Textiles: Spinning, Twisting, and Twining 1 1 1 0 0 3
074 Machine Element or Mechanism 0 2 1 0 0 3
101 Printing 0 1 1 1 0 3
136 Batteries: Thermoelectric and Photoelectric 1 0 0 0 2 3
188 Brakes 1 0 0 2 0 3
216 Etching a Substrate: Processes 0 1 1 1 0 3
220 Receptacles 1 0 0 1 1 3
242 Winding, Tensioning, or Guiding 0 0 0 0 3 3
269 Work Holders 0 1 0 2 0 3
313 Electric Lamp and Discharge Devices 1 0 0 0 2 3
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 1 0 1 1 0 3
417 Pumps 1 0 1 1 0 3
419 Powder Metallurgy Processes 2 0 1 0 0 3
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 1 1 0 0 3
433 Dentistry 2 1 0 0 0 3
016 Miscellaneous Hardware 0 0 2 0 0 2
024 Buckles, Buttons, Clasps, Etc. 0 0 0 1 1 2
036 Boots, Shoes, and Leggings 0 1 0 1 0 2
056 Harvesters 2 0 0 0 0 2
089 Ordnance 0 1 0 1 0 2
099 Foods and Beverages: Apparatus 0 0 2 0 0 2
108 Horizontally Supported Planar Surfaces 0 0 0 2 0 2
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 1 0 1 0 0 2
132 Toilet 1 0 1 0 0 2
221 Article Dispensing 0 0 1 0 1 2
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 1 0 0 1 0 2
246 Railway Switches and Signals 0 0 1 0 1 2
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 0 1 1 2
292 Closure Fasteners 0 0 0 0 2 2
294 Handling: Hand and Hoist-Line Implements 0 1 0 0 1 2
315 Electric Lamp and Discharge Devices: Systems 0 0 1 0 1 2
332 Modulators 1 0 0 1 0 2
355 Photocopying 1 0 0 1 0 2
361 Electricity: Electrical Systems and Devices 0 0 1 1 0 2
378 X-Ray or Gamma Ray Systems or Devices 0 0 1 0 1 2
396 Photography 1 0 1 0 0 2
405 Hydraulic and Earth Engineering 1 1 0 0 0 2
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 0 1 1 2
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 1 0 1 0 2
706 DP: Artificial Intelligence (Data Processing) 0 1 1 0 0 2
001 ** Classification Undetermined ** 0 0 1 0 0 1
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 1 1
026 Textiles: Cloth Finishing 0 0 1 0 0 1
033 Geometrical Instruments 0 0 0 1 0 1
038 Textiles: Ironing or Smoothing 0 0 0 1 0 1
040 Card, Picture, or Sign Exhibiting 0 1 0 0 0 1
060 Power Plants 0 0 0 0 1 1
076 Metal Tools and Implements, Making 0 1 0 0 0 1
092 Expansible Chamber Devices 1 0 0 0 0 1
102 Ammunition and Explosives 0 0 1 0 0 1
112 Sewing 0 1 0 0 0 1
114 Ships 0 1 0 0 0 1
123 Internal-Combustion Engines 0 0 0 1 0 1
126 Stoves and Furnaces 1 0 0 0 0 1
134 Cleaning and Liquid Contact with Solids 1 0 0 0 0 1
138 Pipes and Tubular Conduits 1 0 0 0 0 1
139 Textiles: Weaving 1 0 0 0 0 1
144 Woodworking 1 0 0 0 0 1
148 Metal Treatment 0 1 0 0 0 1
165 Heat Exchange 0 0 0 0 1 1
180 Motor Vehicles 1 0 0 0 0 1
181 Acoustics 0 0 1 0 0 1
182 Fire Escape, Ladder, or Scaffold 0 0 0 0 1 1
184 Lubrication 0 0 0 0 1 1
192 Clutches and Power-Stop Control 1 0 0 0 0 1
209 Classifying, Separating, and Assorting Solids 1 0 0 0 0 1
213 Railway Draft Appliances 0 0 1 0 0 1
215 Bottles and Jars 0 0 1 0 0 1
222 Dispensing (apparatus and process) 1 0 0 0 0 1
223 Apparel Apparatus 0 0 1 0 0 1
226 Advancing Material of Indeterminate Length 0 0 0 1 0 1
228 Metal Fusion Bonding 0 0 0 0 1 1
236 Automatic Temperature and Humidity Regulation 0 0 1 0 0 1
238 Railways: Surface Track 1 0 0 0 0 1
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 0 1 0 1
251 Valves and Valve Actuation 0 0 0 0 1 1
266 Metallurgical Apparatus 0 1 0 0 0 1
281 Books, Strips, and Leaves 0 0 0 1 0 1
283 Printed Matter 0 0 1 0 0 1
312 Supports: Cabinet Structure 1 0 0 0 0 1
318 Electricity: Motive Power Systems 0 0 0 1 0 1
333 Wave Transmission Lines and Networks 1 0 0 0 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 1 0 0 1
336 Inductor Devices 0 0 1 0 0 1
343 Communications: Radio Wave Antennas 0 0 1 0 0 1
349 Liquid Crystal Cells, Elements and Systems 0 0 0 0 1 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 0 1 1
368 Horology: Time Measuring Systems or Devices 0 1 0 0 0 1
370 Multiplex Communications 0 0 1 0 0 1
372 Coherent Light Generators 0 0 0 1 0 1
374 Thermal Measuring and Testing 0 0 0 0 1 1
406 Conveyors: Fluid Current 1 0 0 0 0 1
431 Combustion 0 1 0 0 0 1
434 Education and Demonstration 0 0 1 0 0 1
440 Marine Propulsion 0 1 0 0 0 1
446 Amusement Devices: Toys 0 0 0 0 1 1
454 Ventilation 0 0 1 0 0 1
474 Endless Belt Power Transmission Systems or Components 1 0 0 0 0 1
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 0 1 0 1
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 0 1 0 0 0 1
512 Perfume Compositions 0 1 0 0 0 1
588 Hazardous or Toxic Waste Destruction or Containment 0 1 0 0 0 1
607 Surgery: Light, Thermal, and Electrical Application 0 1 0 0 0 1
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 1 1
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 1 0 0 0 1
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 0 1 0 0 0 1
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 1
725 Interactive Video Distribution Systems 0 0 0 1 0 1
ALL ALL CLASSES 454 357 394 417 395 2017



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 30, 2001