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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2001 - 2005 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' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 2001 2002 2003 2004 2005 Total
435 Chemistry: Molecular Biology and Microbiology 3 7 3 6 5 24
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 9 4 4 1 3 21
455 Telecommunications 4 1 3 2 4 14
128 Surgery (includes Class 600) 1 1 4 2 4 12
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 3 1 1 2 3 10
204 Chemistry: Electrical and Wave Energy 1 5 0 1 1 8
210 Liquid Purification or Separation 0 1 1 4 2 8
340 Communications: Electrical 2 2 1 2 1 8
379 Telephonic Communications 1 0 2 4 1 8
707 DP: Database and File Management or Data Structures (Data Processing) 0 1 2 3 2 8
532 Organic Compounds (includes Classes 532-570) 1 1 2 1 1 6
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 1 0 2 2 1 6
375 Pulse or Digital Communications 0 0 0 2 3 5
385 Optical Waveguides 1 1 0 2 1 5
244 Aeronautics and Astronautics 1 2 0 1 0 4
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 1 0 1 1 1 4
356 Optics: Measuring and Testing 0 2 1 1 0 4
359 Optics: Systems and Elements 0 2 0 2 0 4
382 Image Analysis 0 1 2 1 0 4
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 2 1 1 0 4
005 Beds 2 0 0 1 0 3
073 Measuring and Testing 1 1 1 0 0 3
123 Internal-Combustion Engines 1 2 0 0 0 3
180 Motor Vehicles 1 1 1 0 0 3
203 Distillation: Processes, Separatory 0 1 2 0 0 3
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 1 2 0 0 3
434 Education and Demonstration 0 1 0 0 2 3
604 Surgery (Medicators and Receptors) 2 1 0 0 0 3
606 Surgery (instruments) 1 0 1 1 0 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) 2 0 1 0 0 3
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 2 1 3
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 2 0 0 0 1 3
002 Apparel 1 0 0 1 0 2
004 Baths, Closets, Sinks, and Spittoons 0 0 0 2 0 2
060 Power Plants 0 1 0 1 0 2
062 Refrigeration 0 0 0 1 1 2
084 Music 1 0 1 0 0 2
102 Ammunition and Explosives 0 0 0 1 1 2
114 Ships 0 0 0 0 2 2
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 1 0 0 0 2
211 Supports: Racks 1 0 0 1 0 2
219 Electric Heating 0 0 2 0 0 2
222 Dispensing (apparatus and process) 1 0 0 1 0 2
250 Radiant Energy 1 0 0 0 1 2
280 Land Vehicles 1 0 0 0 1 2
294 Handling: Hand and Hoist-Line Implements 0 1 1 0 0 2
297 Chairs and Seats 0 1 0 0 1 2
372 Coherent Light Generators 2 0 0 0 0 2
380 Cryptography 2 0 0 0 0 2
436 Chemistry: Analytical and Immunological Testing 0 1 1 0 0 2
473 Games Using Tangible Projectile 0 1 0 1 0 2
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 1 0 0 1 0 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 1 1 0 0 2
706 DP: Artificial Intelligence (Data Processing) 2 0 0 0 0 2
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 1 1 2
015 Brushing, Scrubbing, and General Cleaning 0 0 0 1 0 1
029 Metal Working 0 0 1 0 0 1
033 Geometrical Instruments 0 1 0 0 0 1
037 Excavating 0 0 0 1 0 1
052 Static Structures (e.g., Buildings) 0 0 0 1 0 1
089 Ordnance 0 0 0 0 1 1
099 Foods and Beverages: Apparatus 0 1 0 0 0 1
116 Signals and Indicators 1 0 0 0 0 1
119 Animal Husbandry 0 0 1 0 0 1
134 Cleaning and Liquid Contact with Solids 1 0 0 0 0 1
135 Tent, Canopy, Umbrella, or Cane 1 0 0 0 0 1
150 Purses, Wallets, and Protective Covers 1 0 0 0 0 1
223 Apparel Apparatus 1 0 0 0 0 1
232 Deposit and Collection Receptacles 0 1 0 0 0 1
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 0 0 0 0 1 1
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 0 1 0 1
248 Supports (e.g., for holding articles, etc.) 0 0 0 1 0 1
249 Static Molds 0 1 0 0 0 1
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 0 0 1 1
292 Closure Fasteners 0 1 0 0 0 1
296 Land Vehicles: Bodies and Tops 0 0 0 1 0 1
310 Electrical Generator or Motor Structure 0 0 0 1 0 1
312 Supports: Cabinet Structure 0 1 0 0 0 1
323 Electricity: Power Supply or Regulation Systems 0 0 0 1 0 1
324 Electricity: Measuring and Testing 0 0 0 1 0 1
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 1 0 0 0 1
343 Communications: Radio Wave Antennas 1 0 0 0 0 1
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 0 0 1 1
348 Television 0 0 0 0 1 1
363 Electric Power Conversion Systems 1 0 0 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 0 0 0 1
370 Multiplex Communications 0 0 0 0 1 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 1 0 0 0 1
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 1 0 1
383 Flexible Bags 1 0 0 0 0 1
386 Television Signal Processing for Dynamic Recording or Reproducing 0 0 1 0 0 1
401 Coating Implements with Material Supply 0 0 0 1 0 1
410 Freight Accommodation On Freight Carrier 1 0 0 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 1 0 0 0 0 1
417 Pumps 1 0 0 0 0 1
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 1 0 0 1
423 Chemistry of Inorganic Compounds 0 1 0 0 0 1
427 Coating Processes 0 0 0 1 0 1
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 1 1
433 Dentistry 1 0 0 0 0 1
438 Semiconductor Device Manufacturing: Process 0 0 0 1 0 1
441 Buoys, Rafts, and Aquatic Devices 0 0 0 1 0 1
463 Amusement Devices: Games 0 1 0 0 0 1
482 Exercise Devices 0 0 0 1 0 1
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 0 0 0 0 1 1
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 1 0 1
607 Surgery: Light, Thermal, and Electrical Application 0 0 0 1 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 1 0 0 1
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 1 0 1
720 Dynamic Optical Information Storage or Retrieval 0 1 0 0 0 1
ALL ALL CLASSES 67 61 49 75 55 307


PTMB Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMB pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMB reports and materials from : ftp.uspto.gov/pub/taf/


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