Skip menu navigation Home > Listing of Viewable PTMD Reports > Table of Contents for This Set of Reports


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 2000 - 2004 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 2000 2001 2002 2003 2004 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 4 9 4 4 1 22
435 Chemistry: Molecular Biology and Microbiology 3 3 7 3 6 22
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 6 3 1 1 2 13
455 Telecommunications 0 4 1 3 2 10
128 Surgery (includes Class 600) 1 1 1 4 2 9
204 Chemistry: Electrical and Wave Energy 2 1 5 0 1 9
340 Communications: Electrical 1 2 2 1 2 8
210 Liquid Purification or Separation 1 0 1 1 4 7
356 Optics: Measuring and Testing 3 0 2 1 1 7
379 Telephonic Communications 0 1 0 2 4 7
532 Organic Compounds (includes Classes 532-570) 1 1 1 2 1 6
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 1 2 3 6
709 Multicomputer Data Transferring or Plural Processor Synchronization (Electrical Computers and Digital Processing Systems) 1 1 0 2 2 6
244 Aeronautics 1 1 2 0 1 5
359 Optics: Systems and Elements 1 0 2 0 2 5
385 Optical Waveguides 1 1 1 0 2 5
606 Surgery (instruments) 2 1 0 1 1 5
005 Beds 1 2 0 0 1 4
123 Internal-Combustion Engines 1 1 2 0 0 4
375 Pulse or Digital Communications 2 0 0 0 2 4
380 Cryptography 2 2 0 0 0 4
382 Image Analysis 0 0 1 2 1 4
463 Amusement Devices: Games 3 0 1 0 0 4
473 Games Using Tangible Projectile 2 0 1 0 1 4
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 0 2 1 1 4
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 1 2 0 1 0 4
060 Power Plants 1 0 1 0 1 3
073 Measuring and Testing 0 1 1 1 0 3
084 Music 1 1 0 1 0 3
135 Tent, Canopy, Umbrella, or Cane 2 1 0 0 0 3
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 1 1 0 0 3
180 Motor Vehicles 0 1 1 1 0 3
203 Distillation: Processes, Separatory 0 0 1 2 0 3
250 Radiant Energy 2 1 0 0 0 3
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 1 2 0 3
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 1 0 1 1 3
604 Surgery (Medicators and Receptors) 0 2 1 0 0 3
706 DP: Artificial Intelligence (Data Processing) 1 2 0 0 0 3
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 1 2 0 0 0 3
002 Apparel 0 1 0 0 1 2
004 Baths, Closets, Sinks, and Spittoons 0 0 0 0 2 2
052 Static Structures (e.g., Buildings) 1 0 0 0 1 2
062 Refrigeration 1 0 0 0 1 2
211 Supports: Racks 0 1 0 0 1 2
219 Electric Heating 0 0 0 2 0 2
222 Dispensing (apparatus and process) 0 1 0 0 1 2
239 Fluid Sprinkling, Spraying, and Diffusing 1 0 0 0 1 2
294 Handling: Hand and Hoist-Line Implements 0 0 1 1 0 2
312 Supports: Cabinet Structure 1 0 1 0 0 2
372 Coherent Light Generators 0 2 0 0 0 2
410 Freight Accommodation On Freight Carrier 1 1 0 0 0 2
434 Education and Demonstration 1 0 1 0 0 2
436 Chemistry: Analytical and Immunological Testing 0 0 1 1 0 2
441 Buoys, Rafts, and Aquatic Devices 1 0 0 0 1 2
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 0 2 2
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 1 0 0 1 2
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 1 1 0 2
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 0 0 0 1 2
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 1 1
029 Metal Working 0 0 0 1 0 1
033 Geometrical Instruments 0 0 1 0 0 1
037 Excavating 0 0 0 0 1 1
099 Foods and Beverages: Apparatus 0 0 1 0 0 1
102 Ammunition and Explosives 0 0 0 0 1 1
116 Signals and Indicators 0 1 0 0 0 1
119 Animal Husbandry 0 0 0 1 0 1
134 Cleaning and Liquid Contact with Solids 0 1 0 0 0 1
150 Purses, Wallets, and Protective Covers 0 1 0 0 0 1
186 Merchandising 1 0 0 0 0 1
206 Special Receptacle or Package 1 0 0 0 0 1
223 Apparel Apparatus 0 1 0 0 0 1
232 Deposit and Collection Receptacles 0 0 1 0 0 1
248 Supports (e.g., for holding articles, etc.) 0 0 0 0 1 1
249 Static Molds 0 0 1 0 0 1
280 Land Vehicles 0 1 0 0 0 1
292 Closure Fasteners 0 0 1 0 0 1
296 Land Vehicles: Bodies and Tops 0 0 0 0 1 1
297 Chairs and Seats 0 0 1 0 0 1
310 Electrical Generator or Motor Structure 0 0 0 0 1 1
323 Electricity: Power Supply or Regulation Systems 0 0 0 0 1 1
324 Electricity: Measuring and Testing 0 0 0 0 1 1
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 0 1 0 0 1
343 Communications: Radio Wave Antennas 0 1 0 0 0 1
348 Television 1 0 0 0 0 1
363 Electric Power Conversion Systems 0 1 0 0 0 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 1 0 0 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 1 0 0 0 0 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 1 0 0 1
381 Electrical Audio Signal Processing Systems and Devices 0 0 0 0 1 1
383 Flexible Bags 0 1 0 0 0 1
386 Television Signal Processing for Dynamic Recording or Reproducing 0 0 0 1 0 1
401 Coating Implements with Material Supply 0 0 0 0 1 1
405 Hydraulic and Earth Engineering 1 0 0 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 0 1 0 0 0 1
417 Pumps 0 1 0 0 0 1
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 0 1 0 1
423 Chemistry of Inorganic Compounds 0 0 1 0 0 1
427 Coating Processes 0 0 0 0 1 1
433 Dentistry 0 1 0 0 0 1
438 Semiconductor Device Manufacturing: Process 0 0 0 0 1 1
482 Exercise Devices 0 0 0 0 1 1
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 0 1 1
607 Surgery: Light, Thermal, and Electrical Application 0 0 0 0 1 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 1 0 1
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 1 1
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 1
720 Dynamic Optical Information Storage or Retrieval 0 0 1 0 0 1
ALL ALL CLASSES 62 67 61 49 75 314


PTMD Contacts

Questions regarding these reports should be directed to:

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

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

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


Top

Skip menu navigation Home > Listing of Viewable PTMD Reports > Table of Contents for This Set of Reports