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

U.S. Government
Utility Patent Grants,
Calendar Years 1969-2004

- this report has been prepared with support from the National Science Foundation -

BREAKOUT BY TECHNOLOGY CLASS -
PATENTS DISTRIBUTED BY CALENDAR YEAR OF GRANT

NUMBER OF UTILITY PATENTS ASSIGNED ANNUALLY TO
U.S. GOVERNMENT ENTITIES

- Explanation of Data -

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period

This Table Displays Patent Counts By Technology Class
For Patents Granted To The Following U.S. Government Entity:

UNITED STATES OF AMERICA, DEPARTMENT OF COMMERCE

( count of patent grants, as distributed by calendar year of grant )
( technology class is determined by the primary patent classification - see 'Explanation of Data' )

This table displays annual patent counts for the selected U.S. Government entry.
Counts of granted patents are either distributed by the year of patent grant
or by the year of patent filing.
Class Class Title PRE_1984 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Total
250 Radiant Energy 10 0 1 0 1 1 0 2 0 1 1 3 2 5 2 0 4 1 2 1 1 0 38
073 Measuring and Testing 8 1 1 0 1 1 1 1 0 1 0 1 1 2 1 1 2 1 3 3 2 1 33
356 Optics: Measuring and Testing 9 2 1 0 1 0 0 0 0 3 1 0 2 0 0 2 2 1 0 0 3 0 27
324 Electricity: Measuring and Testing 12 0 0 0 0 0 0 1 0 1 2 1 0 2 1 1 1 0 0 0 0 0 22
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 3 0 0 0 0 0 0 0 0 0 2 1 1 2 0 1 0 0 2 2 0 0 14
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 1 0 1 1 0 0 0 0 1 1 0 0 1 1 0 2 1 0 2 0 1 13
374 Thermal Measuring and Testing 3 0 0 1 0 1 0 0 0 0 2 0 0 0 1 1 0 2 0 0 0 0 11
382 Image Analysis 1 0 0 1 0 0 0 0 0 0 1 3 1 0 1 1 0 0 1 0 0 0 10
428 Stock Material or Miscellaneous Articles 1 0 0 0 0 1 0 0 1 0 2 2 0 1 1 0 0 0 1 0 0 0 10
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 1 0 0 0 0 1 0 0 0 0 1 3 0 1 1 0 0 1 0 0 0 9
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 0 0 0 0 0 0 1 1 1 1 0 3 0 0 1 0 0 1 0 9
204 Chemistry: Electrical and Wave Energy 2 0 0 0 0 1 0 0 0 0 0 1 0 0 2 0 0 1 1 0 0 0 8
372 Coherent Light Generators 2 0 0 1 0 0 0 2 0 0 0 0 0 1 0 1 0 0 0 0 0 0 7
378 X-Ray or Gamma Ray Systems or Devices 1 0 0 0 0 0 0 0 1 0 1 1 2 0 0 1 0 0 0 0 0 0 7
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 0 0 0 2 2 2 1 0 0 0 0 0 0 0 0 0 0 0 7
532 Organic Compounds (includes Classes 532-570) 0 0 0 0 2 1 0 0 0 1 0 2 1 0 0 0 0 0 0 0 0 0 7
062 Refrigeration 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 1 1 0 0 0 0 6
219 Electric Heating 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 2 0 0 0 0 0 0 6
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 2 0 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 6
343 Communications: Radio Wave Antennas 3 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 6
426 Food or Edible Material: Processes, Compositions, and Products 3 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
427 Coating Processes 0 0 0 0 0 0 0 0 1 0 2 2 0 0 0 0 0 1 0 0 0 0 6
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 1 0 0 0 1 6
435 Chemistry: Molecular Biology and Microbiology 0 0 0 0 1 0 0 0 0 1 0 0 1 0 1 0 0 1 0 0 0 1 6
436 Chemistry: Analytical and Immunological Testing 0 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 2 0 1 0 0 6
252 Compositions 3 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 5
331 Oscillators 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5
385 Optical Waveguides 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 0 5
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 3 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 5
136 Batteries: Thermoelectric and Photoelectric 0 0 0 0 0 0 0 1 0 0 0 1 2 0 0 0 0 0 0 0 0 0 4
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 0 1 4
269 Work Holders 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 4
359 Optics: Systems and Elements 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 4
423 Chemistry of Inorganic Compounds 1 0 0 2 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 1 0 0 0 4
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 3
148 Metal Treatment 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 3
208 Mineral Oils: Processes and Products 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 3
210 Liquid Purification or Separation 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3
216 Etching a Substrate: Processes 1 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 3
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 3
341 Coded Data Generation or Conversion 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 3
348 Television 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 3
438 Semiconductor Device Manufacturing: Process 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 3
451 Abrading 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 3
501 Compositions: Ceramic 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 3
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 3
029 Metal Working 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2
033 Geometrical Instruments 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2
060 Power Plants 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 2
106 Compositions: Coating or Plastic 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 2
212 Traversing Hoists 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 2
248 Supports (e.g., for holding articles, etc.) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2
294 Handling: Hand and Hoist-Line Implements 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
318 Electricity: Motive Power Systems 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2
330 Amplifiers 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
338 Electrical Resistors 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2
355 Photocopying 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
368 Horology: Time Measuring Systems or Devices 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2
405 Hydraulic and Earth Engineering 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2
419 Powder Metallurgy Processes 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 2
420 Alloys or Metallic Compositions 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2
434 Education and Demonstration 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2
455 Telecommunications 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
585 Chemistry of Hydrocarbon Compounds 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2
014 Bridges 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
023 Chemistry: Physical Processes 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
040 Card, Picture, or Sign Exhibiting 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
070 Locks 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
074 Machine Element or Mechanism 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
083 Cutting 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
091 Motors: Expansible Chamber Type 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
095 Gas Separation: Processes 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
102 Ammunition and Explosives 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
119 Animal Husbandry 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
126 Stoves and Furnaces 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
181 Acoustics 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
182 Fire Escape, Ladder, or Scaffold 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
271 Sheet Feeding or Delivering 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
366 Agitating (e.g., of articles and materials) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1
380 Cryptography 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1
384 Bearings 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
392 Electric Resistance Heating Devices 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
398 Optical Communications 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
403 Joints and Connections 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
409 Gear Cutting, Milling, or Planing 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
433 Dentistry 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
452 Butchering 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
473 Games Using Tangible Projectile 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
706 DP: Artificial Intelligence (Data Processing) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 96 9 6 7 13 10 5 18 8 19 27 34 26 24 18 15 21 21 21 20 12 9 439

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U.S. Patent and Trademark Office
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