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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 PATENT APPLICATION

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, ARMY

( count of patent grants, as distributed by calendar year of patent application )
( 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
102 Ammunition and Explosives 549 7 8 8 2 7 16 12 10 15 8 9 6 13 10 12 2 12 10 9 4 0 729
089 Ordnance 256 1 2 9 6 7 7 4 4 8 8 4 6 3 5 2 4 6 4 1 3 0 350
073 Measuring and Testing 228 8 4 2 5 8 3 7 3 4 8 3 11 9 4 5 7 2 5 8 1 0 335
250 Radiant Energy 160 8 8 5 6 5 10 12 7 9 12 10 7 7 4 9 5 6 0 0 1 0 291
149 Explosive and Thermic Compositions or Charges 195 5 4 1 1 4 7 1 4 1 3 3 1 3 1 4 7 1 2 0 1 0 249
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 165 3 1 1 0 2 2 1 6 2 7 6 6 2 4 4 3 4 1 5 4 0 229
244 Aeronautics 137 6 8 4 0 2 3 6 1 3 5 3 3 5 6 4 2 5 9 4 2 0 218
532 Organic Compounds (includes Classes 532-570) 167 4 3 4 1 1 1 3 5 10 1 1 4 1 0 7 2 1 0 0 1 0 217
343 Communications: Radio Wave Antennas 129 4 4 5 1 2 2 0 1 2 3 6 6 3 1 6 5 4 0 2 0 0 186
356 Optics: Measuring and Testing 119 8 5 3 3 1 3 0 2 2 1 3 5 4 5 1 0 5 2 1 0 0 173
324 Electricity: Measuring and Testing 108 2 2 0 3 4 4 5 8 1 2 6 3 2 1 3 5 3 4 1 0 0 167
359 Optics: Systems and Elements 84 8 5 10 0 4 4 3 1 5 8 2 9 3 5 6 2 5 2 0 1 0 167
333 Wave Transmission Lines and Networks 102 3 5 0 4 9 2 0 4 7 6 3 2 1 1 0 1 1 1 0 0 0 152
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 41 4 2 5 3 1 0 1 7 1 1 9 11 7 6 6 11 14 16 3 0 0 149
137 Fluid Handling 98 0 2 2 3 0 1 3 1 0 0 0 0 1 1 0 0 0 0 0 0 0 112
372 Coherent Light Generators 67 5 3 3 3 3 3 3 1 2 1 1 2 1 3 1 1 0 1 2 0 0 106
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 41 3 3 0 0 1 1 2 1 5 13 8 7 3 1 4 3 3 3 2 0 0 104
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 94 1 0 0 0 0 0 0 1 3 1 0 0 0 1 0 0 0 0 0 0 0 101
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 47 3 1 3 5 3 0 8 1 5 6 3 4 2 1 1 1 2 3 0 0 0 99
060 Power Plants 76 3 2 0 0 0 0 1 3 0 2 1 1 0 0 0 0 0 0 0 0 0 89
435 Chemistry: Molecular Biology and Microbiology 16 0 0 2 1 0 2 1 2 0 1 5 9 4 7 10 8 12 7 2 0 0 89
042 Firearms 62 0 0 0 0 0 2 2 2 2 2 1 0 0 2 0 1 1 0 1 3 1 82
310 Electrical Generator or Motor Structure 37 3 5 1 3 0 4 1 5 1 3 6 5 1 2 1 2 1 0 0 0 0 81
331 Oscillators 41 7 5 3 2 3 1 1 1 3 4 1 3 2 2 0 0 0 0 0 0 0 79
313 Electric Lamp and Discharge Devices 59 2 1 1 0 0 0 0 0 2 0 0 2 2 0 2 0 0 0 0 0 0 71
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 50 2 1 0 1 1 1 0 1 2 1 0 0 4 3 0 0 2 1 0 0 0 70
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 1 0 4 3 5 7 4 7 3 2 9 6 2 2 1 3 3 1 1 0 0 67
427 Coating Processes 42 0 0 0 1 3 4 3 2 0 0 1 2 4 0 1 0 1 1 0 1 0 66
428 Stock Material or Miscellaneous Articles 40 0 0 2 0 1 3 1 0 4 2 1 1 1 1 3 0 0 1 2 1 0 64
348 Television 40 0 0 1 0 1 1 1 3 4 2 5 1 0 3 1 0 0 0 0 0 0 63
436 Chemistry: Analytical and Immunological Testing 38 0 0 2 2 0 0 1 2 0 2 1 1 4 2 3 4 0 1 0 0 0 63
029 Metal Working 38 1 1 2 1 0 1 3 4 0 1 2 1 2 1 0 1 1 0 1 0 0 61
340 Communications: Electrical 31 1 1 1 0 1 2 1 0 1 1 3 2 5 3 2 4 1 0 0 0 0 60
438 Semiconductor Device Manufacturing: Process 40 1 1 2 0 2 2 0 0 1 1 2 0 2 1 0 1 0 1 1 0 0 58
455 Telecommunications 49 2 0 0 0 2 1 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 57
315 Electric Lamp and Discharge Devices: Systems 40 6 0 0 0 0 0 0 0 1 0 0 4 1 0 0 2 1 1 0 0 0 56
074 Machine Element or Mechanism 44 0 1 2 1 1 1 0 0 2 0 0 0 2 0 0 0 0 0 0 0 0 54
128 Surgery (includes Class 600) 17 1 1 0 2 0 2 1 2 0 1 2 0 2 2 3 8 2 7 0 1 0 54
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 36 4 1 0 0 1 0 1 0 0 3 0 0 2 0 1 2 1 0 0 0 0 52
426 Food or Edible Material: Processes, Compositions, and Products 42 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 48
330 Amplifiers 39 1 0 0 1 0 2 0 1 0 1 0 0 0 0 1 0 0 0 0 0 0 46
375 Pulse or Digital Communications 36 1 1 0 0 0 0 0 2 1 1 3 0 1 0 0 0 0 0 0 0 0 46
361 Electricity: Electrical Systems and Devices 26 1 3 0 0 0 2 1 0 2 1 2 1 0 1 1 1 0 1 1 0 0 44
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 38 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 43
280 Land Vehicles 22 3 1 0 1 2 0 0 2 2 1 0 1 3 0 3 0 0 0 1 1 0 43
385 Optical Waveguides 14 1 1 0 1 1 0 0 1 3 5 1 4 0 3 3 4 0 1 0 0 0 43
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 24 1 0 0 0 0 0 2 1 1 1 1 1 1 1 1 0 2 1 0 1 0 39
434 Education and Demonstration 15 2 2 1 0 0 0 2 2 0 3 5 1 2 2 0 0 0 1 1 0 0 39
367 Communications, Electrical: Acoustic Wave Systems and Devices 19 0 0 0 0 0 2 0 1 3 1 2 3 2 2 1 0 0 0 0 0 0 36
062 Refrigeration 27 3 1 0 0 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 35
374 Thermal Measuring and Testing 26 0 0 0 0 1 1 0 0 2 0 1 2 0 0 0 0 2 0 0 0 0 35
204 Chemistry: Electrical and Wave Energy 24 1 0 0 0 0 2 1 0 1 1 3 0 0 0 0 0 1 0 0 0 0 34
252 Compositions 13 2 1 0 0 1 1 10 0 0 0 0 1 0 1 2 0 0 0 1 0 0 33
423 Chemistry of Inorganic Compounds 19 1 2 1 1 2 0 0 0 0 0 1 0 1 0 1 0 1 2 0 0 0 32
002 Apparel 15 1 1 0 0 3 1 0 0 1 1 0 1 0 0 0 1 1 3 0 2 0 31
086 Ammunition and Explosive-Charge Making 22 0 0 0 1 0 1 0 0 0 3 2 1 0 1 0 0 0 0 0 0 0 31
033 Geometrical Instruments 22 2 0 2 0 1 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 30
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 17 1 1 0 0 0 2 1 0 1 1 0 2 0 2 0 0 2 0 0 0 0 30
702 DP: Measuring, Calibrating, or Testing (Data Processing) 9 0 0 0 0 0 1 1 2 0 1 2 1 5 2 1 1 3 0 1 0 0 30
305 Wheel Substitutes for Land Vehicles 23 0 0 1 1 0 0 0 1 0 0 0 0 1 0 0 1 1 0 0 0 0 29
382 Image Analysis 7 1 0 1 1 2 0 0 1 0 0 0 1 2 2 3 4 2 2 0 0 0 29
708 Arithmetic Processing and Calculating (Electrical Computers) 24 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 29
370 Multiplex Communications 28 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 28
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 21 1 1 0 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 26
248 Supports (e.g., for holding articles, etc.) 12 0 1 0 0 0 0 0 1 2 1 0 1 1 1 0 1 0 2 1 1 0 25
365 Static Information Storage and Retrieval 23 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25
174 Electricity: Conductors and Insulators 15 0 0 0 0 0 1 2 1 0 1 1 2 0 1 0 0 0 0 0 0 0 24
398 Optical Communications 14 1 2 1 0 0 0 0 0 1 2 0 1 0 1 0 1 0 0 0 0 0 24
341 Coded Data Generation or Conversion 20 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 23
405 Hydraulic and Earth Engineering 2 0 1 0 0 0 0 0 2 7 1 1 5 0 1 0 0 0 1 2 0 0 23
505 Superconductor Technology: Apparatus, Material, Process 0 0 0 0 0 3 5 2 1 1 4 1 4 0 1 0 1 0 0 0 0 0 23
239 Fluid Sprinkling, Spraying, and Diffusing 19 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
363 Electric Power Conversion Systems 18 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 1 0 0 0 0 22
439 Electrical Connectors 13 1 1 1 0 0 0 0 1 1 0 0 1 0 1 0 0 0 1 0 1 0 22
148 Metal Treatment 16 0 0 0 0 1 2 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 21
200 Electricity: Circuit Makers and Breakers 17 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 21
216 Etching a Substrate: Processes 12 0 1 1 0 2 0 1 1 0 0 2 0 0 0 1 0 0 0 0 0 0 21
219 Electric Heating 15 0 1 1 0 0 0 0 0 1 1 0 0 1 0 0 1 0 0 0 0 0 21
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 16 0 0 0 0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 20
169 Fire Extinguishers 10 0 1 1 0 1 0 1 0 0 0 0 1 1 2 0 1 1 0 0 0 0 20
180 Motor Vehicles 12 1 0 0 1 0 0 0 0 0 0 1 1 2 0 0 0 1 0 1 0 0 20
378 X-Ray or Gamma Ray Systems or Devices 16 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 1 0 0 20
445 Electric Lamp or Space Discharge Component or Device Manufacturing 9 0 0 1 2 2 1 3 1 0 0 0 0 0 0 1 0 0 0 0 0 0 20
123 Internal-Combustion Engines 10 0 0 0 1 1 1 0 0 0 0 1 0 1 0 0 2 2 0 0 0 0 19
376 Induced Nuclear Reactions: Processes, Systems, and Elements 8 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 8 0 0 19
106 Compositions: Coating or Plastic 8 0 0 0 0 0 1 0 0 2 3 0 2 0 0 1 0 0 0 1 0 0 18
136 Batteries: Thermoelectric and Photoelectric 10 0 0 0 0 0 1 1 0 0 0 3 2 0 0 1 0 0 0 0 0 0 18
210 Liquid Purification or Separation 7 0 1 0 1 0 1 0 3 0 0 1 0 1 1 0 1 0 0 0 1 0 18
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 16 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 18
307 Electrical Transmission or Interconnection Systems 12 1 0 0 0 1 0 1 1 0 0 0 0 0 0 1 0 1 0 0 0 0 18
403 Joints and Connections 8 0 0 1 0 0 1 0 2 1 1 0 0 1 1 1 0 0 1 0 0 0 18
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 4 0 1 1 0 1 0 0 0 1 0 0 2 1 0 1 1 2 3 0 0 0 18
206 Special Receptacle or Package 11 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 2 0 0 17
345 Computer Graphics Processing and Selective Visual Display Systems 10 0 0 0 0 0 0 0 0 0 0 0 2 1 0 2 0 2 0 0 0 0 17
362 Illumination 11 0 1 1 0 0 0 0 0 0 2 0 0 0 0 0 0 1 1 0 0 0 17
165 Heat Exchange 9 1 0 0 0 0 1 0 1 2 0 0 0 0 1 0 1 0 0 0 0 0 16
414 Material or Article Handling 12 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 0 0 0 0 0 16
118 Coating Apparatus 11 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 0 15
220 Receptacles 9 1 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 15
254 Implements or Apparatus for Applying Pushing or Pulling Force 11 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 0 0 0 15
320 Electricity: Battery or Capacitor Charging or Discharging 8 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 3 1 0 0 0 0 15
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 10 1 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 15
501 Compositions: Ceramic 4 0 1 0 0 0 0 1 0 0 0 2 2 1 0 2 1 1 0 0 0 0 15
588 Hazardous or Toxic Waste Destruction or Containment 1 1 0 1 0 0 0 0 0 0 0 2 1 4 2 1 1 0 0 1 0 0 15
044 Fuel and Related Compositions 9 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 1 0 0 0 0 14
714 Error Detection/Correction and Fault Detection/Recovery 9 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 0 13
091 Motors: Expansible Chamber Type 11 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
228 Metal Fusion Bonding 9 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 12
242 Winding, Tensioning, or Guiding 6 0 1 0 1 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 12
285 Pipe Joints or Couplings 9 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 12
294 Handling: Hand and Hoist-Line Implements 7 1 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 12
318 Electricity: Motive Power Systems 9 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 12
380 Cryptography 11 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 12
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 9 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 12
065 Glass Manufacturing 8 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 11
134 Cleaning and Liquid Contact with Solids 4 0 0 1 1 0 0 0 0 0 1 0 0 0 0 1 0 1 1 1 0 0 11
192 Clutches and Power-Stop Control 10 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
222 Dispensing (apparatus and process) 7 2 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 11
277 Seal for a Joint or Juncture 7 0 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 1 0 0 0 0 11
332 Modulators 10 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
410 Freight Accommodation On Freight Carrier 5 1 0 1 2 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 11
416 Fluid Reaction Surfaces (i.e., Impellers) 7 1 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 11
419 Powder Metallurgy Processes 3 0 1 0 0 2 2 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 11
052 Static Structures (e.g., Buildings) 5 0 0 0 1 0 0 0 0 2 1 0 1 0 0 0 0 0 0 0 0 0 10
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 9 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
323 Electricity: Power Supply or Regulation Systems 9 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 10
338 Electrical Resistors 7 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 10
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 7 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 10
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 9 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
024 Buckles, Buttons, Clasps, Etc. 5 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 9
096 Gas Separation: Apparatus 6 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 9
109 Safes, Bank Protection, or a Related Device 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
114 Ships 8 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 9
251 Valves and Valve Actuation 5 0 0 0 0 0 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 9
292 Closure Fasteners 4 1 0 0 0 0 0 1 0 2 0 0 1 0 0 0 0 0 0 0 0 0 9
336 Inductor Devices 6 0 0 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 9
360 Dynamic Magnetic Information Storage or Retrieval 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
420 Alloys or Metallic Compositions 6 0 0 0 0