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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 1998 - 2002 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' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 1998 1999 2000 2001 2002 Total
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 58 69 77 73 55 332
532 Organic Compounds (includes Classes 532-570) 47 59 51 54 46 257
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 27 27 34 28 33 149
428 Stock Material or Miscellaneous Articles 26 33 18 23 14 114
435 Chemistry: Molecular Biology and Microbiology 12 13 19 28 19 91
106 Compositions: Coating or Plastic 14 8 12 5 4 43
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 14 9 7 6 6 42
451 Abrading 1 2 7 9 18 37
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 8 7 6 9 4 34
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 3 6 11 9 4 33
252 Compositions 16 5 5 1 3 30
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 3 5 1 7 10 26
427 Coating Processes 6 7 6 4 2 25
204 Chemistry: Electrical and Wave Energy 2 11 2 3 3 21
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 4 6 4 3 3 20
504 Plant Protecting and Regulating Compositions 5 7 2 4 1 19
423 Chemistry of Inorganic Compounds 4 5 3 4 2 18
162 Paper Making and Fiber Liberation 3 2 3 6 3 17
095 Gas Separation: Processes 0 3 4 5 4 16
210 Liquid Purification or Separation 2 4 0 6 3 15
436 Chemistry: Analytical and Immunological Testing 7 2 4 1 1 15
604 Surgery (Medicators and Receptors) 2 4 5 2 1 14
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 3 4 3 2 1 13
083 Cutting 4 1 2 3 2 12
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 2 4 4 1 1 12
426 Food or Edible Material: Processes, Compositions, and Products 2 4 3 1 2 12
585 Chemistry of Hydrocarbon Compounds 0 3 4 3 2 12
073 Measuring and Testing 3 3 0 1 4 11
096 Gas Separation: Apparatus 2 3 3 1 1 10
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 3 1 4 2 0 10
119 Animal Husbandry 1 1 2 1 4 9
362 Illumination 1 2 1 2 3 9
118 Coating Apparatus 3 0 2 0 3 8
219 Electric Heating 0 2 4 1 1 8
359 Optics: Systems (Including Communication) and Elements 1 4 2 0 1 8
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 3 2 1 1 1 8
438 Semiconductor Device Manufacturing: Process 1 1 2 2 2 8
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 2 3 3 0 0 8
250 Radiant Energy 1 1 1 2 2 7
366 Agitating (e.g., of articles and materials) 2 1 1 1 2 7
382 Image Analysis 1 1 2 1 2 7
385 Optical Waveguides 2 2 2 0 1 7
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 2 0 3 1 7
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 1 2 2 1 7
473 Games Using Tangible Projectile 1 1 2 1 2 7
606 Surgery (instruments) 4 2 0 1 0 7
002 Apparel 2 1 2 1 0 6
015 Brushing, Scrubbing, and General Cleaning 0 0 1 3 2 6
049 Movable or Removable Closures 3 2 1 0 0 6
055 Gas Separation 3 1 2 0 0 6
174 Electricity: Conductors and Insulators 4 0 0 2 0 6
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 4 0 1 0 1 6
280 Land Vehicles 2 2 0 0 2 6
358 Facsimile and Static Presentation Processing 0 2 1 1 2 6
505 Superconductor Technology: Apparatus, Material, Process 3 1 1 0 1 6
004 Baths, Closets, Sinks, and Spittoons 1 2 1 0 1 5
136 Batteries: Thermoelectric and Photoelectric 0 0 2 2 1 5
137 Fluid Handling 1 2 2 0 0 5
203 Distillation: Processes, Separatory 1 2 1 0 1 5
221 Article Dispensing 1 0 1 1 2 5
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 1 0 0 4 5
242 Winding, Tensioning, or Guiding 0 0 3 0 2 5
248 Supports (e.g., for holding articles, etc.) 0 1 1 2 1 5
285 Pipe Joints or Couplings 1 1 3 0 0 5
340 Communications: Electrical 2 1 0 1 1 5
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 1 2 0 2 0 5
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 1 0 1 3 5
028 Textiles: Manufacturing 0 2 2 0 0 4
029 Metal Working 0 1 1 1 1 4
052 Static Structures (e.g., Buildings) 0 2 0 1 1 4
053 Package Making 0 2 2 0 0 4
062 Refrigeration 3 0 0 1 0 4
101 Printing 1 1 0 1 1 4
128 Surgery (includes Class 600) 2 1 0 1 0 4
164 Metal Founding 0 2 0 2 0 4
206 Special Receptacle or Package 0 1 2 0 1 4
220 Receptacles 0 1 1 1 1 4
313 Electric Lamp and Discharge Devices 0 0 2 1 1 4
356 Optics: Measuring and Testing 2 0 2 0 0 4
378 X-Ray or Gamma Ray Systems or Devices 1 0 1 0 2 4
439 Electrical Connectors 0 0 1 1 2 4
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 0 1 3 4
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 2 1 0 1 0 4
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 2 1 0 0 3
024 Buckles, Buttons, Clasps, Etc. 0 1 1 1 0 3
043 Fishing, Trapping, and Vermin Destroying 1 2 0 0 0 3
047 Plant Husbandry 0 0 1 1 1 3
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 3 3
099 Foods and Beverages: Apparatus 2 0 0 1 0 3
108 Horizontally Supported Planar Surfaces 0 2 0 1 0 3
160 Flexible or Portable Closure, Partition, or Panel 1 1 0 1 0 3
165 Heat Exchange 0 0 1 2 0 3
182 Fire Escape, Ladder, or Scaffold 0 0 1 0 2 3
216 Etching a Substrate: Processes 1 1 0 0 1 3
229 Envelopes, Wrappers, and Paperboard Boxes 0 1 2 0 0 3
244 Aeronautics 1 0 1 1 0 3
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 1 1 0 1 3
269 Work Holders 0 2 0 1 0 3
277 Seal for a Joint or Juncture 0 2 0 1 0 3
361 Electricity: Electrical Systems and Devices 1 1 0 0 1 3
432 Heating 1 1 1 0 0 3
501 Compositions: Ceramic 2 0 1 0 0 3
005 Beds 0 0 0 2 0 2
016 Miscellaneous Hardware 2 0 0 0 0 2
034 Drying and Gas or Vapor Contact with Solids 0 2 0 0 0 2
060 Power Plants 0 0 1 1 0 2
074 Machine Element or Mechanism 1 0 0 1 0 2
123 Internal-Combustion Engines 0 1 0 1 0 2
138 Pipes and Tubular Conduits 0 0 0 1 1 2
149 Explosive and Thermic Compositions or Charges 2 0 0 0 0 2
188 Brakes 0 2 0 0 0 2
211 Supports: Racks 0 1 0 0 1 2
226 Advancing Material of Indeterminate Length 0 1 0 1 0 2
239 Fluid Sprinkling, Spraying, and Diffusing 0 1 0 0 1 2
246 Railway Switches and Signals 1 0 1 0 0 2
251 Valves and Valve Actuation 0 0 1 0 1 2
292 Closure Fasteners 0 0 2 0 0 2
294 Handling: Hand and Hoist-Line Implements 0 0 1 0 1 2
296 Land Vehicles: Bodies and Tops 0 0 0 0 2 2
315 Electric Lamp and Discharge Devices: Systems 1 0 1 0 0 2
318 Electricity: Motive Power Systems 0 1 0 0 1 2
324 Electricity: Measuring and Testing 0 0 0 0 2 2
332 Modulators 0 1 0 1 0 2
341 Coded Data Generation or Conversion 0 0 0 0 2 2
349 Liquid Crystal Cells, Elements and Systems 0 0 0 1 1 2
351 Optics: Eye Examining, Vision Testing and Correcting 0 1 1 0 0 2
374 Thermal Measuring and Testing 0 0 1 0 1 2
414 Material or Article Handling 2 0 0 0 0 2
417 Pumps 1 1 0 0 0 2
433 Dentistry 0 0 0 1 1 2
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 1 1 0 0 2
482 Exercise Devices 1 0 0 0 1 2
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 0 2 2
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 0 0 0 1 2
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 1 1 0 2
706 DP: Artificial Intelligence (Data Processing) 1 0 0 0 1 2
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 0 0 1 0 2
001 ** Classification Undetermined ** 1 0 0 0 0 1
026 Textiles: Cloth Finishing 1 0 0 0 0 1
036 Boots, Shoes, and Leggings 0 1 0 0 0 1
038 Textiles: Ironing or Smoothing 0 1 0 0 0 1
040 Card, Picture, or Sign Exhibiting 0 0 0 1 0 1
042 Firearms 0 1 0 0 0 1
056 Harvesters 0 0 0 1 0 1
057 Textiles: Spinning, Twisting, and Twining 1 0 0 0 0 1
072 Metal Deforming 0 0 0 1 0 1
087 Textiles: Braiding, Netting, and Lace Making 0 0 0 0 1 1
089 Ordnance 0 1 0 0 0 1
102 Ammunition and Explosives 1 0 0 0 0 1
112 Sewing 0 0 0 1 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 1 0 0 0 0 1
132 Toilet 1 0 0 0 0 1
181 Acoustics 1 0 0 0 0 1
184 Lubrication 0 0 1 0 0 1
208 Mineral Oils: Processes and Products 0 0 1 0 0 1
213 Railway Draft Appliances 1 0 0 0 0 1
215 Bottles and Jars 1 0 0 0 0 1
222 Dispensing (apparatus and process) 0 0 0 0 1 1
223 Apparel Apparatus 1 0 0 0 0 1
224 Package and Article Carriers 0 0 0 1 0 1
225 Severing by Tearing or Breaking 0 0 0 0 1 1
228 Metal Fusion Bonding 0 0 1 0 0 1
236 Automatic Temperature and Humidity Regulation 1 0 0 0 0 1
261 Gas and Liquid Contact Apparatus 0 0 0 0 1 1
281 Books, Strips, and Leaves 0 1 0 0 0 1
283 Printed Matter 1 0 0 0 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 0 0 0 0 1
336 Inductor Devices 1 0 0 0 0 1
343 Communications: Radio Wave Antennas 1 0 0 0 0 1
347 Incremental Printing of Symbolic Information 0 0 0 0 1 1
355 Photocopying 0 1 0 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 1 0 0 1
370 Multiplex Communications 1 0 0 0 0 1
372 Coherent Light Generators 0 1 0 0 0 1
375 Pulse or Digital Communications 0 0 0 0 1 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 1 0 1
379 Telephonic Communications 0 0 0 0 1 1
383 Flexible Bags 0 0 0 0 1 1
396 Photography 1 0 0 0 0 1
415 Rotary Kinetic Fluid Motors or Pumps 0 0 0 0 1 1
419 Powder Metallurgy Processes 1 0 0 0 0 1
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 0 0 0 0 1
434 Education and Demonstration 1 0 0 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 1 0 1
446 Amusement Devices: Toys 0 0 1 0 0 1
454 Ventilation 1 0 0 0 0 1
463 Amusement Devices: Games 0 0 0 0 1 1
477 Interrelated Power Delivery Controls, Including Engine Control 0 1 0 0 0 1
602 Surgery: Splint, Brace, or Bandage 1 0 0 0 0 1
708 Arithmetic Processing and Calculating (Electrical Computers) 0 0 0 1 0 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 1 0 1
ALL ALL CLASSES 394 417 395 381 354 1941


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