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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

U.S. Government
Utility Patent Grants,
Calendar Years 1969-2008

- 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, AIR FORCE

( 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_1988 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 Total
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 203 0 6 6 3 10 9 11 1 6 3 1 3 5 3 3 5 6 3 0 0 0 287
244 Aeronautics and Astronautics 136 6 0 5 4 5 2 2 0 2 0 1 5 4 5 2 2 1 5 0 0 0 187
250 Radiant Energy 116 2 7 5 2 7 6 5 8 3 5 4 1 1 3 1 0 3 4 0 0 0 183
359 Optical: Systems and Elements 90 4 10 9 9 9 5 4 5 5 3 7 2 3 7 1 2 0 3 2 0 0 180
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 92 6 12 8 6 6 2 2 10 4 2 3 5 3 5 4 2 2 0 0 0 0 174
372 Coherent Light Generators 114 3 2 2 3 4 5 5 2 5 4 0 3 2 3 2 0 1 4 1 0 0 165
356 Optics: Measuring and Testing 106 3 4 1 3 2 1 5 6 4 2 3 4 5 2 1 4 0 1 0 0 0 157
073 Measuring and Testing 122 2 3 4 3 4 2 3 0 1 5 1 2 0 1 1 1 0 1 0 0 0 156
532 Organic Compounds (includes Classes 532-570) 114 3 0 2 1 1 2 0 1 3 2 3 4 4 1 5 1 3 0 1 0 0 151
060 Power Plants 91 5 1 6 6 2 0 1 1 1 0 1 2 2 4 0 2 0 0 0 0 0 125
343 Communications: Radio Wave Antennas 71 3 2 3 1 2 2 2 0 0 2 0 4 1 1 2 0 2 3 2 0 0 103
324 Electricity: Measuring and Testing 64 1 4 1 7 2 3 1 2 2 1 0 4 1 1 0 0 0 1 0 0 0 95
102 Ammunition and Explosives 81 0 0 2 2 1 0 0 0 2 1 1 0 0 0 1 0 0 0 0 0 0 91
333 Wave Transmission Lines and Networks 76 1 1 2 0 0 0 0 2 0 1 2 0 1 0 0 2 0 0 0 0 0 88
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 29 3 3 1 1 2 3 2 10 5 3 4 1 0 0 0 4 3 0 0 0 0 74
438 Semiconductor Device Manufacturing: Process 34 0 2 1 0 2 1 7 2 3 1 7 2 0 1 3 4 1 1 1 0 0 73
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 65 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 68
427 Coating Processes 29 3 1 4 2 2 0 1 1 1 4 2 2 1 1 1 5 3 0 0 0 0 63
089 Ordnance 48 3 0 2 1 0 1 3 1 0 0 0 0 2 1 0 0 0 0 0 0 0 62
385 Optical Waveguides 19 4 5 4 4 2 1 2 2 2 5 1 0 0 0 1 0 0 5 0 1 0 58
340 Communications: Electrical 46 1 0 1 2 2 0 0 1 0 0 1 0 0 1 0 0 0 2 0 0 0 57
428 Stock Material or Miscellaneous Articles 30 1 0 0 3 3 3 2 2 3 0 2 0 2 3 0 1 1 0 0 0 0 56
029 Metal Working 32 0 0 4 3 0 2 2 0 0 0 1 1 4 0 1 0 0 1 0 0 0 51
708 Arithmetic Processing and Calculating (Electrical Computers) 37 0 2 0 1 2 0 1 0 0 2 0 0 0 1 0 0 2 0 0 0 0 48
149 Explosive and Thermic Compositions or Charges 36 0 1 2 1 0 0 0 0 0 1 2 0 0 0 1 0 0 0 0 0 0 44
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 29 1 0 2 6 0 1 0 2 1 0 1 0 0 1 0 0 0 0 0 0 0 44
148 Metal Treatment 17 2 0 5 0 4 2 4 5 2 0 0 0 1 1 0 0 0 0 0 0 0 43
310 Electrical Generator or Motor Structure 31 0 1 0 1 2 1 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 40
239 Fluid Sprinkling, Spraying, and Diffusing 35 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 39
361 Electricity: Electrical Systems and Devices 22 1 1 3 4 1 1 1 1 0 0 0 1 1 1 0 0 0 1 0 0 0 39
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 29 1 0 0 1 1 3 1 1 0 0 0 0 1 1 0 0 0 0 0 0 0 39
128 Surgery (includes Class 600) 23 0 1 0 1 2 3 0 0 0 2 1 2 1 2 0 0 0 0 0 0 0 38
375 Pulse or Digital Communications 21 1 1 1 2 1 2 1 1 0 0 3 1 0 2 0 0 0 0 0 0 0 37
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 21 2 1 1 3 0 1 1 1 0 0 1 1 0 0 2 0 0 0 0 0 0 35
348 Television 32 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 35
374 Thermal Measuring and Testing 24 0 0 0 0 1 1 0 0 3 0 0 0 1 0 0 0 3 0 0 0 0 33
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 24 0 0 1 0 0 0 1 1 0 1 0 2 0 1 1 0 0 0 0 0 0 32
165 Heat Exchange 17 3 1 2 1 1 0 1 0 0 1 0 2 2 1 0 0 0 0 0 0 0 32
315 Electric Lamp and Discharge Devices: Systems 21 0 1 2 1 1 0 1 0 0 0 0 1 0 0 0 1 1 1 0 0 0 31
415 Rotary Kinetic Fluid Motors or Pumps 21 2 0 2 3 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 31
331 Oscillators 28 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30
365 Static Information Storage and Retrieval 22 0 0 0 0 2 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 29
416 Fluid Reaction Surfaces (i.e., Impellers) 18 1 0 2 2 1 2 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 29
137 Fluid Handling 27 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 28
455 Telecommunications 19 0 0 1 1 0 0 3 0 0 0 1 1 0 0 1 0 0 1 0 0 0 28
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 14 2 1 0 1 0 2 2 0 2 1 1 0 0 0 1 0 0 0 0 0 0 27
313 Electric Lamp and Discharge Devices 22 1 0 0 0 0 0 0 0 1 0 0 0 0 3 0 0 0 0 0 0 0 27
330 Amplifiers 21 0 1 2 0 2 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 27
382 Image Analysis 8 3 0 1 2 1 4 0 0 0 0 1 2 0 1 2 1 0 0 0 0 0 26
307 Electrical Transmission or Interconnection Systems 16 1 0 0 0 0 1 1 1 2 3 0 0 0 0 0 0 0 0 0 0 0 25
423 Chemistry of Inorganic Compounds 20 2 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 25
204 Chemistry: Electrical and Wave Energy 14 0 0 0 1 0 1 2 1 0 2 0 1 0 0 1 1 0 0 0 0 0 24
062 Refrigeration 18 0 0 1 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 23
700 DP: Generic Control Systems or Specific Applications (Data Processing) 3 3 0 1 1 0 2 0 2 0 1 3 1 0 0 1 0 1 4 0 0 0 23
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 15 2 0 1 0 1 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 22
419 Powder Metallurgy Processes 6 5 2 1 2 0 1 0 0 0 1 1 0 0 0 1 1 0 1 0 0 0 22
436 Chemistry: Analytical and Immunological Testing 11 2 0 1 0 1 1 1 0 0 2 0 0 0 2 0 0 1 0 0 0 0 22
435 Chemistry: Molecular Biology and Microbiology 3 0 0 1 1 0 1 1 0 1 1 4 1 2 1 1 1 1 1 0 0 0 21
702 DP: Measuring, Calibrating, or Testing (Data Processing) 8 2 2 0 2 1 1 0 0 1 1 0 1 1 1 0 0 0 0 0 0 0 21
228 Metal Fusion Bonding 14 0 2 1 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 20
439 Electrical Connectors 14 0 1 3 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 20
074 Machine Element or Mechanism 19 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19
136 Batteries: Thermoelectric and Photoelectric 15 0 0 1 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 19
376 Induced Nuclear Reactions: Processes, Systems, and Elements 15 0 1 2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 19
341 Coded Data Generation or Conversion 17 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 18
252 Compositions 9 0 0 0 1 1 0 1 1 1 0 2 1 0 0 0 0 0 0 0 0 0 17
398 Optical Communications 7 0 0 1 1 1 0 0 1 0 1 2 2 0 0 1 0 0 0 0 0 0 17
714 Error Detection/Correction and Fault Detection/Recovery 9 0 0 2 0 1 0 1 0 0 1 1 1 0 1 0 0 0 0 0 0 0 17
118 Coating Apparatus 7 0 1 1 1 0 0 0 1 3 0 0 0 0 0 1 0 1 0 0 0 0 16
370 Multiplex Communications 9 0 0 0 1 1 1 1 0 0 0 1 0 0 0 2 0 0 0 0 0 0 16
434 Education and Demonstration 12 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
174 Electricity: Conductors and Insulators 12 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 15
219 Electric Heating 8 0 0 1 1 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 14
420 Alloys or Metallic Compositions 12 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 6 0 0 0 0 2 1 0 0 0 0 0 0 3 1 0 1 0 0 0 0 0 14
002 Apparel 10 0 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 13
033 Geometrical Instruments 11 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 12
345 Computer Graphics Processing and Selective Visual Display Systems 5 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 12
351 Optics: Eye Examining, Vision Testing and Correcting 11 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 12
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 11 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 6 0 0 2 0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 12
285 Pipe Joints or Couplings 9 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 10 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
378 X-Ray or Gamma Ray Systems or Devices 8 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
403 Joints and Connections 8 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 11
451 Abrading 10 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
210 Liquid Purification or Separation 4 3 0 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 10
323 Electricity: Power Supply or Regulation Systems 6 0 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 10
384 Bearings 9 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 10
052 Static Structures (e.g., Buildings) 6 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 9
065 Glass Manufacturing 4 4 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 9
188 Brakes 6 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 9
220 Receptacles 4 1 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 9
248 Supports (e.g., for holding articles, etc.) 7 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
277 Seal for a Joint or Juncture 7 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
318 Electricity: Motive Power Systems 5 0 0 1 1 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 9
367 Communications, Electrical: Acoustic Wave Systems and Devices 5 0 1 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 9
396 Photography 8 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
414 Material or Article Handling 9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
710 Input/Output (Electrical Computers and Digital Processing Systems) 7 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 9
106 Compositions: Coating or Plastic 6 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 8
326 Electronic Digital Logic Circuitry 2 0 1 1 0 0 1 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 8
349 Liquid Crystal Cells, Elements and Systems 3 0 0 2 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 8
380 Cryptography 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
501 Compositions: Ceramic 5 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 8
072 Metal Deforming 5 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 7
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 5 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
164 Metal Founding 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
222 Dispensing (apparatus and process) 6 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 7
242 Winding, Tensioning, or Guiding 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
292 Closure Fasteners 7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
362 Illumination 5 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
363 Electric Power Conversion Systems 4 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 7
381 Electrical Audio Signal Processing Systems and Devices 1 0 0 0 0 0 0 0 0 1 0 1 1 0 2 0 0 0 0 0 1 0 7
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 2 0 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
604 Surgery (Medicators and Receptors) 1 0 0 0 0 0 0 3 0 1 0 0 1 0 1 0 0 0 0 0 0 0 7
138 Pipes and Tubular Conduits 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
206 Special Receptacle or Package 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 6
417 Pumps 4 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 6
505 Superconductor Technology: Apparatus, Material, Process 0 0 1 0 0 2 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 6
606 Surgery (instruments) 4 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 2 1 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 6
706 DP: Artificial Intelligence (Data Processing) 0 0 0 0 0 0 0 1 1 0 0 0 2 2 0 0 0 0 0 0 0 0 6
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 3 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 6
134 Cleaning and Liquid Contact with Solids 3 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 5
200 Electricity: Circuit Makers and Breakers 3 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 5
254 Implements or Apparatus for Applying Pushing or Pulling Force 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
294 Handling: Hand and Hoist-Line Implements 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
329 Demodulators 4 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 5
332 Modulators 3 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 5
355 Photocopying 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
360 Dynamic Magnetic Information Storage or Retrieval 3 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
410 Freight Accommodation On Freight Carrier 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
431 Combustion 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 2 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 5
005 Beds 1 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 4
091 Motors: Expansible Chamber Type 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
123 Internal-Combustion Engines 1 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 4
216 Etching a Substrate: Processes 2 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
267 Spring Devices 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 4
269 Work Holders 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
280 Land Vehicles 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 4
320 Electricity: Battery or Capacitor Charging or Discharging 2 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 4
336 Inductor Devices 3 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 4
338 Electrical Resistors 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
358 Facsimile and Static Presentation Processing 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
607 Surgery: Light, Thermal, and Electrical Application 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 0 0 0 4
015 Brushing, Scrubbing, and General Cleaning 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
082 Turning (e.g., for metal working) 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
083 Cutting 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 3
096 Gas Separation: Apparatus 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3
108 Horizontally Supported Planar Surfaces 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
116 Signals and Indicators 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
119 Animal Husbandry 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 3
177 Weighing Scales 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
178 Telegraphy 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
181 Acoustics 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 3
202 Distillation: Apparatus 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
290 Prime-Mover Dynamo Plants 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 3
299 Mining or In Situ Disintegration of Hard Material 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
312 Supports: Cabinet Structure 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
346 Recorders 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
347 Incremental Printing of Symbolic Information 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
352 Optics: Motion Pictures 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
353 Optics: Image Projectors 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
366 Agitating (e.g., of articles and materials) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 3
369 Dynamic Information Storage or Retrieval 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
392 Electric Resistance Heating Devices 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
406 Conveyors: Fluid Current 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 3
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 3
016 Miscellaneous Hardware 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
034 Drying and Gas or Vapor Contact with Solids 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2
055 Gas Separation 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
081 Tools 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
084 Music 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2
086 Ammunition and Explosive-Charge Making 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
092 Expansible Chamber Devices 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
095 Gas Separation: Processes 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
109 Safes, Bank Protection, or a Related Device 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
126 Stoves and Furnaces 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
139 Textiles: Weaving 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
152 Resilient Tires and Wheels 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
160 Flexible or Portable Closure, Partition, or Panel 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
169 Fire Extinguishers 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 2
173 Tool Driving or Impacting 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2
182 Fire Escape, Ladder, or Scaffold 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
184 Lubrication 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
192 Clutches and Power-Stop Control 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 2
261 Gas and Liquid Contact Apparatus 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
266 Metallurgical Apparatus 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
297 Chairs and Seats 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
368 Horology: Time Measuring Systems or Devices 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
373 Industrial Electric Heating Furnaces 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
379 Telephonic Communications 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
386 Television Signal Processing for Dynamic Recording or Reproducing 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
388 Electricity: Motor Control Systems 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
404 Road Structure, Process, or Apparatus 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
432 Heating 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
433 Dentistry 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 2
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
588 Hazardous or Toxic Waste Destruction or Containment 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
601 Surgery: Kinesitherapy 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
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 1 1 0 0 0 0 0 2
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2
014 Bridges 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
024 Buckles, Buttons, Clasps, Etc. 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
030 Cutlery 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
042 Firearms 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
048 Gas: Heating and Illuminating 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
101 Printing 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
110 Furnaces 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
114 Ships 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
122 Liquid Heaters and Vaporizers 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
124 Mechanical Guns and Projectors 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
132 Toilet 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
157 Wheelwright Machines 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
180 Motor Vehicles 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
203 Distillation: Processes, Separatory 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
208 Mineral Oils: Processes and Products 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
209 Classifying, Separating, and Assorting Solids 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
211 Supports: Racks 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
215 Bottles and Jars 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
229 Envelopes, Wrappers, and Paperboard Boxes 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
249 Static Molds 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
251 Valves and Valve Actuation 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
256 Fences 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
258 Railway Mail Delivery 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
273 Amusement Devices: Games 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
322 Electricity: Single Generator Systems 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
383 Flexible Bags 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
408 Cutting by Use of Rotating Axially Moving Tool 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
409 Gear Cutting, Milling, or Planing 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
475 Planetary Gear Transmission Systems or Components 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
494 Imperforate Bowl: Centrifugal Separators 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1
585 Chemistry of Hydrocarbon Compounds 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
602 Surgery: Splint, Brace, or Bandage 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 3226 113 109 144 130 125 105 98 99 84 81 84 81 72 72 61 49 40 47 9 2 0 4831

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