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

DISTRICT OF COLUMBIA

(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
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 6 14 6 4 9 39
435 Chemistry: Molecular Biology and Microbiology 4 5 6 3 3 21
606 Surgery (instruments) 5 1 4 2 1 13
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 1 2 6 3 12
128 Surgery (includes Class 600) 3 2 2 1 1 9
455 Telecommunications 0 4 1 0 4 9
244 Aeronautics 1 1 2 1 1 6
379 Telephonic Communications 3 2 0 0 1 6
380 Cryptography 1 1 0 2 2 6
707 DP: Database and File Management, Data Structures, Or Document Processing (Data Processing) 1 2 0 1 2 6
005 Beds 2 0 0 1 2 5
135 Tent, Canopy, Umbrella, or Cane 1 0 1 2 1 5
372 Coherent Light Generators 1 0 2 0 2 5
463 Amusement Devices: Games 0 2 0 3 0 5
099 Foods and Beverages: Apparatus 0 3 1 0 0 4
204 Chemistry: Electrical and Wave Energy 0 0 1 2 1 4
206 Special Receptacle or Package 1 1 1 1 0 4
250 Radiant Energy 1 0 0 2 1 4
343 Communications: Radio Wave Antennas 0 2 1 0 1 4
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 0 1 1 1 1 4
052 Static Structures (e.g., Buildings) 0 2 0 1 0 3
084 Music 0 0 1 1 1 3
123 Internal-Combustion Engines 0 1 0 1 1 3
139 Textiles: Weaving 0 2 1 0 0 3
219 Electric Heating 0 3 0 0 0 3
280 Land Vehicles 0 1 1 0 1 3
340 Communications: Electrical 0 0 0 1 2 3
348 Television 0 2 0 1 0 3
356 Optics: Measuring and Testing 0 0 0 3 0 3
358 Facsimile and Static Presentation Processing 1 0 2 0 0 3
375 Pulse or Digital Communications 0 1 0 2 0 3
532 Organic Compounds (includes Classes 532-570) 1 0 0 1 1 3
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 0 0 0 1 2 3
706 DP: Artificial Intelligence (Data Processing) 0 0 0 1 2 3
002 Apparel 0 1 0 0 1 2
015 Brushing, Scrubbing, and General Cleaning 0 0 2 0 0 2
062 Refrigeration 0 0 1 1 0 2
132 Toilet 1 1 0 0 0 2
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 1 1 2
186 Merchandising 1 0 0 1 0 2
211 Supports: Racks 0 0 1 0 1 2
222 Dispensing (apparatus and process) 0 1 0 0 1 2
224 Package and Article Carriers 0 2 0 0 0 2
252 Compositions 1 0 1 0 0 2
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 1 0 0 1 2
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 1 0 1 0 2
385 Optical Waveguides 0 0 0 1 1 2
401 Coating Implements with Material Supply 0 1 1 0 0 2
405 Hydraulic and Earth Engineering 1 0 0 1 0 2
410 Freight Accommodation On Freight Carrier 0 0 0 1 1 2
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 1 1 0 0 2
428 Stock Material or Miscellaneous Articles 0 0 2 0 0 2
434 Education and Demonstration 0 0 1 1 0 2
436 Chemistry: Analytical and Immunological Testing 1 1 0 0 0 2
441 Buoys, Rafts, and Aquatic Devices 0 1 0 1 0 2
473 Games Using Tangible Projectile 0 0 0 2 0 2
505 Superconductor Technology: Apparatus, Material, Process 0 1 1 0 0 2
604 Surgery (Medicators and Receptors) 0 0 0 0 2 2
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 0 0 1 0 2
004 Baths, Closets, Sinks, and Spittoons 1 0 0 0 0 1
016 Miscellaneous Hardware 0 1 0 0 0 1
029 Metal Working 0 0 1 0 0 1
060 Power Plants 0 0 0 1 0 1
073 Measuring and Testing 0 0 0 0 1 1
114 Ships 0 0 1 0 0 1
116 Signals and Indicators 0 0 0 0 1 1
126 Stoves and Furnaces 0 1 0 0 0 1
134 Cleaning and Liquid Contact with Solids 0 0 0 0 1 1
150 Purses, Wallets, and Protective Covers 0 0 0 0 1 1
180 Motor Vehicles 0 0 0 0 1 1
208 Mineral Oils: Processes and Products 1 0 0 0 0 1
210 Liquid Purification or Separation 0 0 0 1 0 1
220 Receptacles 1 0 0 0 0 1
223 Apparel Apparatus 0 0 0 0 1 1
232 Deposit and Collection Receptacles 1 0 0 0 0 1
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 0 1 0 1
241 Solid Material Comminution or Disintegration 0 0 1 0 0 1
273 Amusement Devices: Games 1 0 0 0 0 1
292 Closure Fasteners 1 0 0 0 0 1
294 Handling: Hand and Hoist-Line Implements 0 1 0 0 0 1
312 Supports: Cabinet Structure 0 0 0 1 0 1
324 Electricity: Measuring and Testing 0 0 1 0 0 1
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 1 0 0 0 0 1
359 Optics: Systems (Including Communication) and Elements 0 0 0 1 0 1
361 Electricity: Electrical Systems and Devices 1 0 0 0 0 1
363 Electric Power Conversion Systems 0 0 0 0 1 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 0 0 0 1
370 Multiplex Communications 1 0 0 0 0 1
382 Image Analysis 0 0 1 0 0 1
383 Flexible Bags 0 0 0 0 1 1
404 Road Structure, Process, or Apparatus 0 1 0 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 0 0 1 1
417 Pumps 0 0 0 0 1 1
427 Coating Processes 0 0 1 0 0 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1 0 0 0 0 1
433 Dentistry 0 0 0 0 1 1
452 Butchering 1 0 0 0 0 1
482 Exercise Devices 0 0 1 0 0 1
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1 0 0 0 0 1
588 Hazardous or Toxic Waste Destruction or Containment 1 0 0 0 0 1
601 Surgery: Kinesitherapy 1 0 0 0 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 1 0 0 0 1
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 0 0 0 1 1
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 1 0 0 0 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 1 0 0 1
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 1 0 0 0 1
ALL ALL CLASSES 52 74 55 62 67 310



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