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

Patenting In U.S. Metropolitan and Micropolitan Areas
Breakout By Technology Class

Count of 2000 - 2011 Utility Patent Grants
As Distributed 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

Baltimore-Towson, MD

( Metropolitan Statistical Area )

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to a patent- see 'Explanation of Data' )
( some classes have been combined together under a single class identifier )
( patent counts may not sum exactly due to rounding - see the Explanation of Data )
( regional areas are based on U.S. Core Based Statistical Area (CBSA) )

The following table displays technology classes and counts of utility patents classified in them; patents are distributed by year of patent grant.
Class Class Title 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 60 81 96 43 37 24 34 47 22 48 53 64 609
435 Chemistry: Molecular Biology and Microbiology 62 63 51 45 43 39 34 37 38 38 60 52 562
128 Surgery (includes Class 600) 24 30 30 26 14 18 11 20 9 12 20 17 230
398 Optical Communications 9 15 12 15 6 14 17 14 14 19 15 14 163
455 Telecommunications 5 7 6 5 13 5 9 6 21 10 14 26 127
340 Communications: Electrical 4 10 5 2 8 7 16 16 18 18 9 11 123
385 Optical Waveguides 9 7 14 13 16 12 15 6 8 8 7 5 119
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 2 6 1 5 4 3 10 8 15 13 29 23 119
359 Optical: Systems and Elements 6 7 16 20 7 15 11 8 8 2 1 5 106
250 Radiant Energy 8 3 12 5 14 13 13 7 7 9 7 7 104
532 Organic Compounds (includes Classes 532-570) 5 10 12 11 8 5 8 5 9 11 7 8 98
083 Cutting 12 9 12 9 11 5 7 6 4 5 4 3 87
375 Pulse or Digital Communications 4 4 4 9 6 7 7 7 8 12 9 7 83
073 Measuring and Testing 1 3 3 6 14 9 10 5 11 12 7 3 83
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 6 10 9 5 6 5 2 7 11 5 7 6 79
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 10 7 4 10 10 4 3 3 9 6 6 5 77
370 Multiplex Communications 5 5 3 3 7 5 9 6 6 6 9 11 74
438 Semiconductor Device Manufacturing: Process 5 5 5 8 5 4 3 8 6 6 11 6 72
428 Stock Material or Miscellaneous Articles 11 10 13 8 6 3 7 1 4 1 2 2 67
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 2 2 4 2 3 3 9 2 6 11 8 15 66
356 Optics: Measuring and Testing 4 3 2 6 4 3 5 6 9 10 7 6 65
333 Wave Transmission Lines and Networks 1 0 2 9 13 4 7 5 4 6 9 4 64
343 Communications: Radio Wave Antennas 1 2 8 9 8 15 7 3 2 1 4 5 63
604 Surgery (Medicators and Receptors) 4 8 4 10 9 3 1 3 2 5 5 9 63
382 Image Analysis 3 3 3 3 11 2 8 2 10 4 11 4 63
607 Surgery: Light, Thermal, and Electrical Application 9 5 10 3 2 6 4 6 7 3 4 4 63
310 Electrical Generator or Motor Structure 4 3 2 6 9 9 11 6 1 2 5 4 62
606 Surgery (instruments) 15 8 7 5 0 3 1 1 4 2 6 9 61
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 9 9 6 5 2 3 2 3 4 4 5 8 60
436 Chemistry: Analytical and Immunological Testing 1 10 6 5 3 4 3 3 3 9 7 7 60
320 Electricity: Battery or Capacitor Charging or Discharging 5 5 4 4 3 4 3 1 6 7 8 7 57
324 Electricity: Measuring and Testing 5 8 9 4 8 1 6 3 1 2 7 4 57
030 Cutlery 5 10 5 5 7 2 6 3 2 2 3 5 55
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 7 3 6 3 4 0 3 5 6 4 8 6 54
473 Games Using Tangible Projectile 2 1 2 8 1 9 6 3 5 5 9 2 53
702 DP: Measuring, Calibrating, or Testing (Data Processing) 2 1 6 5 6 7 4 6 4 5 2 5 53
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 3 3 4 2 6 2 4 4 3 4 11 7 53
029 Metal Working 3 3 0 2 4 5 11 5 3 4 6 4 50
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 3 5 4 6 8 1 6 3 4 1 3 5 49
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 5 2 7 12 7 5 1 2 3 3 1 0 48
002 Apparel 3 5 5 3 1 3 3 4 6 5 7 3 48
173 Tool Driving or Impacting 1 5 4 2 5 1 6 2 5 9 5 2 47
408 Cutting by Use of Rotating Axially Moving Tool 4 6 7 3 1 2 5 2 2 9 6 0 47
361 Electricity: Electrical Systems and Devices 2 2 4 5 12 3 0 3 0 3 6 6 46
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 2 4 4 8 3 3 3 3 3 3 5 2 43
713 Support (Electrical Computers and Digital Processing Systems) 3 3 1 0 3 6 2 3 5 1 6 8 41
210 Liquid Purification or Separation 2 4 3 6 5 4 2 6 1 6 1 1 41
005 Beds 4 3 3 3 3 4 4 5 1 5 1 4 40
714 Error Detection/Correction and Fault Detection/Recovery 3 4 1 2 2 4 3 3 4 5 3 6 39
244 Aeronautics and Astronautics 2 3 5 4 2 2 3 6 2 3 2 5 39
239 Fluid Sprinkling, Spraying, and Diffusing 5 2 3 3 3 3 4 4 1 3 8 0 39
726 Information Security 4 1 0 1 2 0 2 3 6 1 7 12 39
379 Telephonic Communications 4 2 3 2 3 6 4 2 4 2 2 4 37
707 DP: Database and File Management or Data Structures (Data Processing) 3 5 0 6 2 3 4 1 1 3 5 5 37
052 Static Structures (e.g., Buildings) 9 3 6 3 4 5 1 2 0 0 1 3 37
700 DP: Generic Control Systems or Specific Applications (Data Processing) 1 4 4 4 4 3 4 1 3 2 4 3 36
227 Elongated-Member-Driving Apparatus 0 0 0 2 3 3 2 6 4 3 8 5 36
426 Food or Edible Material: Processes, Compositions, and Products 7 12 3 4 3 0 0 0 1 2 2 2 35
434 Education and Demonstration 2 2 1 6 8 1 3 3 5 2 2 0 35
380 Cryptography 1 3 1 0 4 5 6 3 1 4 4 3 35
241 Solid Material Comminution or Disintegration 0 3 1 3 3 1 3 7 5 4 1 3 34
102 Ammunition and Explosives 4 3 6 2 2 1 1 2 4 2 4 3 34
089 Ordnance 2 1 1 3 3 0 1 1 9 3 5 5 34
206 Special Receptacle or Package 9 1 4 2 3 3 2 3 4 1 0 2 34
362 Illumination 6 6 2 4 2 2 1 1 2 3 0 4 33
208 Mineral Oils: Processes and Products 6 1 3 2 0 4 5 3 0 1 2 5 32
081 Tools 3 3 1 1 1 2 7 6 3 0 1 3 31
248 Supports (e.g., for holding articles, etc.) 4 1 7 2 1 4 2 0 2 5 3 0 31
114 Ships 4 2 2 2 1 2 4 4 1 4 3 2 31
084 Music 1 2 1 0 4 1 0 2 3 6 4 7 30
427 Coating Processes 3 4 4 5 3 2 0 0 3 0 3 2 29
015 Brushing, Scrubbing, and General Cleaning 4 1 1 1 1 3 3 3 1 2 4 5 29
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 2 1 2 2 4 2 1 1 6 0 4 3 28
706 DP: Artificial Intelligence (Data Processing) 2 0 2 3 2 0 4 2 2 4 3 4 28
222 Dispensing (apparatus and process) 3 2 5 2 3 4 0 5 0 0 0 4 28
297 Chairs and Seats 3 2 1 0 3 2 2 4 4 1 3 3 28
062 Refrigeration 2 5 5 5 4 0 1 0 2 1 2 1 28
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 2 1 0 4 2 2 2 4 2 3 3 2 27
106 Compositions: Coating or Plastic 3 3 3 4 3 0 1 4 0 0 4 2 27
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 2 2 2 3 1 6 2 1 3 6 0 27
372 Coherent Light Generators 2 1 5 3 3 4 2 0 0 3 1 3 27
198 Conveyors: Power-Driven 1 1 2 1 2 1 0 2 2 4 4 7 27
165 Heat Exchange 2 0 2 1 2 5 3 0 1 2 4 4 26
341 Coded Data Generation or Conversion 1 1 6 1 1 2 5 2 3 0 1 3 26
351 Optics: Eye Examining, Vision Testing and Correcting 7 5 1 2 2 0 4 1 1 1 1 1 26
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 6 4 1 2 2 0 4 3 1 0 2 0 25
451 Abrading 2 1 1 2 1 1 1 5 3 3 2 3 25
482 Exercise Devices 3 2 1 1 1 0 2 3 1 4 7 0 25
405 Hydraulic and Earth Engineering 4 1 2 3 2 6 2 2 1 0 2 0 25
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 1 1 3 0 4 1 0 5 4 4 1 24
060 Power Plants 0 3 2 3 2 3 1 2 1 3 3 1 24
423 Chemistry of Inorganic Compounds 1 2 1 1 2 2 4 3 1 2 3 1 23
280 Land Vehicles 3 2 1 4 1 2 4 1 0 1 1 3 23
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 4 1 2 3 1 2 4 0 1 2 2 0 22
345 Computer Graphics Processing and Selective Visual Display Systems 1 3 1 4 0 4 1 0 1 1 3 3 22
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 0 1 1 3 1 3 2 5 1 1 4 0 22
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 4 0 2 3 0 1 0 4 2 2 1 3 21
326 Electronic Digital Logic Circuitry 0 1 0 0 2 0 0 1 1 3 6 7 21
119 Animal Husbandry 1 4 1 3 1 3 2 1 1 1 1 2 21
053 Package Making 2 6 2 0 2 0 1 0 4 1 1 1 20
033 Geometrical Instruments 0 0 2 1 2 1 4 4 3 2 0 0 19
220 Receptacles 3 3 2 2 1 1 2 2 1 1 0 1 19
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 0 1 0 1 2 1 0 2 2 1 3 5 18
381 Electrical Audio Signal Processing Systems and Devices 1 0 1 1 2 1 3 5 0 1 3 0 18
137 Fluid Handling 0 3 2 2 0 0 4 1 0 2 2 2 18
279 Chucks or Sockets 0 2 1 1 0 1 0 3 2 1 4 3 18
318 Electricity: Motive Power Systems 1 1 1 1 0 1 4 0 1 2 4 2 18
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 4 3 3 1 2 1 0 0 0 1 0 3 18
219 Electric Heating 3 1 3 4 2 1 0 1 0 1 0 2 18
475 Planetary Gear Transmission Systems or Components 1 0 0 1 1 1 2 3 3 2 3 0 17
602 Surgery: Splint, Brace, or Bandage 4 2 0 2 0 4 2 1 0 0 0 2 17
601 Surgery: Kinesitherapy 0 2 2 2 2 2 4 0 1 2 0 0 17
174 Electricity: Conductors and Insulators 4 1 0 2 1 1 2 2 1 1 0 1 16
144 Woodworking 2 3 1 1 2 0 2 0 0 3 1 1 16
439 Electrical Connectors 0 1 3 0 3 3 2 1 1 0 2 0 16
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 2 4 1 2 1 0 3 0 0 0 1 2 16
417 Pumps 2 1 1 1 0 2 4 1 1 0 1 2 16
043 Fishing, Trapping, and Vermin Destroying 2 2 1 1 1 2 0 2 1 0 3 0 15
134 Cleaning and Liquid Contact with Solids 4 1 1 2 3 0 0 1 0 1 2 0 15
378 X-Ray or Gamma Ray Systems or Devices 1 0 1 1 1 1 1 2 3 1 1 2 15
463 Amusement Devices: Games 0 2 5 1 1 0 2 0 1 0 2 0 14
040 Card, Picture, or Sign Exhibiting 3 2 1 0 1 2 1 3 1 0 0 0 14
229 Envelopes, Wrappers, and Paperboard Boxes 3 3 2 2 1 0 0 0 1 0 1 1 14
273 Amusement Devices: Games 0 2 0 2 2 1 0 2 0 2 2 1 14
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 2 2 1 1 0 3 1 0 0 2 2 0 13
042 Firearms 0 1 3 1 0 0 0 1 0 1 4 2 13
204 Chemistry: Electrical and Wave Energy 1 0 1 0 1 3 2 1 0 0 4 0 13
200 Electricity: Circuit Makers and Breakers 2 1 1 3 0 2 1 0 0 2 0 1 13
401 Coating Implements with Material Supply 0 4 1 2 3 2 1 0 0 0 0 0 13
132 Toilet 2 1 1 1 1 0 0 0 0 0 2 5 13
348 Television 0 1 1 1 0 3 0 0 1 4 1 1 13
224 Package and Article Carriers 2 2 1 3 2 0 0 0 1 0 1 1 13
252 Compositions 2 4 3 1 1 0 0 2 0 0 0 0 12
074 Machine Element or Mechanism 3 0 0 0 0 1 4 2 0 0 2 0 12
181 Acoustics 2 1 1 0 0 0 0 0 0 3 3 2 12
717 DP: Software Development, Installation, and Management (Data Processing) 0 0 0 1 0 2 2 0 3 0 3 1 12
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 6 1 1 0 0 2 1 0 0 0 0 0 11
209 Classifying, Separating, and Assorting Solids 0 2 2 1 1 0 0 1 0 1 3 0 11
072 Metal Deforming 0 0 1 2 2 4 0 2 0 0 0 0 11
123 Internal-Combustion Engines 2 1 1 1 1 2 1 0 0 1 1 0 11
228 Metal Fusion Bonding 0 2 1 2 0 0 0 1 1 1 1 2 11
315 Electric Lamp and Discharge Devices: Systems 1 1 1 2 2 1 1 1 0 0 1 0 11
366 Agitating (e.g., of articles and materials) 0 1 0 2 2 0 0 1 1 3 0 0 10
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 0 1 0 1 0 2 3 0 1 0 2 0 10
095 Gas Separation: Processes 0 1 1 2 0 0 3 0 0 1 1 1 10
294 Handling: Hand and Hoist-Line Implements 0 1 1 2 1 1 0 1 0 2 1 0 10
433 Dentistry 2 2 1 1 0 1 1 0 0 1 0 1 10
096 Gas Separation: Apparatus 0 1 0 1 0 0 0 1 1 3 0 2 9
108 Horizontally Supported Planar Surfaces 0 1 0 0 3 0 0 1 0 3 0 1 9
261 Gas and Liquid Contact Apparatus 0 3 0 3 0 0 0 1 0 1 1 0 9
404 Road Structure, Process, or Apparatus 0 2 1 0 0 1 0 2 1 1 0 1 9
414 Material or Article Handling 1 0 0 2 1 0 0 0 0 3 2 0 9
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 1 1 0 3 2 2 0 0 0 0 0 0 9
135 Tent, Canopy, Umbrella, or Cane 0 2 2 1 0 0 0 2 0 1 1 0 9
211 Supports: Racks 0 1 1 0 0 2 1 0 1 0 2 1 9
004 Baths, Closets, Sinks, and Spittoons 0 0 0 2 0 1 3 2 0 0 0 1 9
221 Article Dispensing 1 3 0 2 1 0 0 1 0 0 1 0 9
014 Bridges 0 2 1 0 2 1 0 0 0 0 0 3 9
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 0 0 1 1 4 0 0 1 0 1 8
588 Hazardous or Toxic Waste Destruction or Containment 3 0 1 0 0 1 0 1 0 1 1 0 8
725 Interactive Video Distribution Systems 1 3 0 0 0 1 1 0 1 0 1 0 8
024 Buckles, Buttons, Clasps, Etc. 4 3 0 1 0 0 0 0 0 0 0 0 8
055 Gas Separation 0 2 2 1 0 0 0 0 1 1 0 1 8
269 Work Holders 1 0 1 0 0 2 1 1 1 0 1 0 8
312 Supports: Cabinet Structure 1 0 1 2 1 2 0 0 0 0 1 0 8
277 Seal for a Joint or Juncture 1 1 2 0 1 0 3 0 0 0 0 0 8
330 Amplifiers 0 1 0 2 1 1 0 1 0 0 1 1 8
331 Oscillators 0 2 0 1 0 2 1 1 0 1 0 0 8
307 Electrical Transmission or Interconnection Systems 0 0 0 1 0 0 2 1 1 1 0 2 8
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 1 0 2 1 1 0 0 3 0 0 7
048 Gas: Heating and Illuminating 0 0 0 0 2 0 0 1 1 2 1 0 7
101 Printing 1 0 1 2 1 0 2 0 0 0 0 0 7
242 Winding, Tensioning, or Guiding 0 0 1 2 1 0 1 1 0 1 0 0 7
271 Sheet Feeding or Delivering 0 1 0 1 1 0 1 0 1 0 0 2 7
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 2 2 1 2 0 0 0 0 0 0 0 0 7
431 Combustion 1 0 1 0 0 2 0 0 1 0 1 1 7
501 Compositions: Ceramic 1 0 0 1 1 1 0 1 0 1 0 1 7
036 Boots, Shoes, and Leggings 0 1 0 1 0 0 1 1 0 1 1 1 7
708 Arithmetic Processing and Calculating (Electrical Computers) 0 0 1 0 2 0 1 0 1 1 1 0 7
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 0 1 2 0 1 0 0 1 0 0 2 7
446 Amusement Devices: Toys 0 0 3 0 1 1 0 1 0 0 1 0 7
162 Paper Making and Fiber Liberation 3 2 1 0 1 0 1 0 0 0 0 0 7
182 Fire Escape, Ladder, or Scaffold 0 1 0 2 1 1 0 0 0 0 0 2 7
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 1 0 3 2 0 0 0 0 0 6
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 1 1 1 1 0 0 0 1 1 0 0 6
246 Railway Switches and Signals 0 1 1 3 0 0 0 1 0 0 0 0 6
290 Prime-Mover Dynamo Plants 0 0 0 0 0 0 0 2 0 1 1 2 6
374 Thermal Measuring and Testing 0 1 2 0 1 0 0 0 1 0 0 1 6
415 Rotary Kinetic Fluid Motors or Pumps 2 1 1 0 0 1 0 0 0 1 0 0 6
118 Coating Apparatus 0 3 0 0 1 0 1 0 1 0 0 0 6
126 Stoves and Furnaces 0 0 1 0 1 1 0 0 1 0 0 2 6
440 Marine Propulsion 2 0 0 0 2 0 0 1 1 0 0 0 6
034 Drying and Gas or Vapor Contact with Solids 0 1 0 1 0 1 1 0 0 0 0 2 6
047 Plant Husbandry 0 0 0 0 0 1 2 0 0 1 1 1 6
070 Locks 1 2 1 0 0 2 0 0 0 0 0 0 6
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 0 4 0 1 0 0 0 1 0 0 0 6
441 Buoys, Rafts, and Aquatic Devices 0 0 0 1 1 1 0 0 0 0 2 1 6
124 Mechanical Guns and Projectors 1 2 0 1 0 0 0 0 0 1 0 1 5
136 Batteries: Thermoelectric and Photoelectric 2 1 1 0 0 0 1 0 0 0 1 0 5
450 Foundation Garments 0 2 0 0 0 1 0 2 0 1 0 0 5
125 Stone Working 0 0 1 0 0 1 1 0 1 0 1 0 5
169 Fire Extinguishers 3 0 0 0 0 0 1 0 0 0 0 1 5
180 Motor Vehicles 1 1 0 0 0 0 0 0 0 0 2 1 5
296 Land Vehicles: Bodies and Tops 1 0 0 0 1 0 0 0 0 3 0 0 5
358 Facsimile and Static Presentation Processing 0 0 1 1 0 1 0 2 0 0 0 0 5
016 Miscellaneous Hardware 0 1 1 1 0 0 1 0 0 0 1 0 5
148 Metal Treatment 0 0 0 3 0 1 0 0 0 0 1 0 5
172 Earth Working 0 2 1 1 0 0 1 0 0 0 0 0 5
383 Flexible Bags 1 0 2 0 1 0 0 0 0 0 1 0 5
409 Gear Cutting, Milling, or Planing 2 2 0 0 1 0 0 0 0 0 0 0 5
037 Excavating 0 2 0 1 0 0 0 0 0 1 0 1 5
454 Ventilation 0 1 0 1 2 0 0 0 1 0 0 0 5
322 Electricity: Single Generator Systems 1 1 1 0 0 0 1 1 0 0 0 0 5
063 Jewelry 0 0 2 0 1 1 0 0 0 0 0 0 4
149 Explosive and Thermic Compositions or Charges 0 1 0 1 0 1 0 0 0 0 0 1 4
232 Deposit and Collection Receptacles 1 0 0 0 1 0 1 0 0 1 0 0 4
251 Valves and Valve Actuation 1 0 0 0 0 0 1 0 0 0 1 1 4
392 Electric Resistance Heating Devices 0 1 0 0 0 0 1 0 0 0 1 1 4
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 1 1 0 0 0 1 0 0 0 4
044 Fuel and Related Compositions 3 1 0 0 0 0 0 0 0 0 0 0 4
160 Flexible or Portable Closure, Partition, or Panel 1 1 0 0 0 1 0 0 0 0 0 1 4
368 Horology: Time Measuring Systems or Devices 0 0 1 0 0 0 0 2 1 0 0 0 4
116 Signals and Indicators 0 0 0 2 0 0 0 0 1 0 0 1 4
177 Weighing Scales 0 0 1 0 2 0 0 1 0 0 0 0 4
192 Clutches and Power-Stop Control 0 0 0 1 0 0 0 0 0 0 1 2 4
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 1 2 1 0 4
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 0 1 0 0 1 0 0 1 0 1 4
110 Furnaces 0 1 0 0 1 0 1 0 0 0 0 0 3
139 Textiles: Weaving 0 0 0 0 0 0 1 2 0 0 0 0 3
152 Resilient Tires and Wheels 0 0 1 0 0 0 0 1 1 0 0 0 3
188 Brakes 0 0 0 0 0 0 3 0 0 0 0 0 3
283 Printed Matter 1 0 0 1 0 0 0 0 0 0 0 1 3
292 Closure Fasteners 0 0 0 0 0 0 0 1 0 0 1 1 3
323 Electricity: Power Supply or Regulation Systems 0 2 0 0 0 0 0 0 0 0 1 0 3
336 Inductor Devices 0 0 0 0 0 0 1 0 1 0 1 0 3
353 Optics: Image Projectors 0 0 1 0 0 0 0 1 0 1 0 0 3
384 Bearings 0 0 0 1 0 0 0 1 0 0 1 0 3
403 Joints and Connections 0 1 0 0 0 1 0 0 1 0 0 0 3
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 0 1 0 0 0 2 0 0 0 0 0 3
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 1 0 0 0 1 0 0 0 1 0 0 0 3
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 1 0 1 0 0 0 0 0 1 0 3
720 Dynamic Optical Information Storage or Retrieval 0 0 0 0 0 0 0 0 2 1 0 0 3
099 Foods and Beverages: Apparatus 1 0 0 0 0 0 1 0 0 0 1 0 3
452 Butchering 0 1 0 0 0 0 0 0 2 0 0 0 3
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 1 2 0 3
388 Electricity: Motor Control Systems 0 0 1 0 1 0 0 0 0 0 1 0 3
494 Imperforate Bowl: Centrifugal Separators 3 0 0 0 0 0 0 0 0 0 0 0 3
710 Input/Output (Electrical Computers and Digital Processing Systems) 1 1 0 0 0 0 0 0 1 0 0 0 3
363 Electric Power Conversion Systems 1 0 1 0 0 0 0 0 0 0 0 0 2
056 Harvesters 1 0 0 0 0 0 0 0 1 0 0 0 2
066 Textiles: Knitting 0 0 0 0 0 0 0 0 1 0 1 0 2
071 Chemistry: Fertilizers 0 2 0 0 0 0 0 0 0 0 0 0 2
122 Liquid Heaters and Vaporizers 0 0 1 0 1 0 0 0 0 0 0 0 2
138 Pipes and Tubular Conduits 0 0 0 2 0 0 0 0 0 0 0 0 2
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 1 0 0 0 0 0 0 0 1 0 2
213 Railway Draft Appliances 0 0 0 1 0 0 0 0 0 0 1 0 2
216 Etching a Substrate: Processes 1 0 0 0 0 0 0 0 1 0 0 0 2
313 Electric Lamp and Discharge Devices 2 0 0 0 0 0 0 0 0 0 0 0 2
396 Photography 0 0 0 0 0 0 0 0 0 1 1 0 2
406 Conveyors: Fluid Current 0 0 0 0 1 0 0 0 0 0 0 1 2
416 Fluid Reaction Surfaces (i.e., Impellers) 0 1 0 0 0 0 1 0 0 0 0 0 2
418 Rotary Expansible Chamber Devices 0 0 0 0 0 0 1 0 1 0 0 0 2
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 0 0 0 0 0 0 0 1 0 1 0 2
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 2 0 0 0 0 0 0 0 0 0 0 0 2
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 0 0 0 1 0 0 0 0 0 0 0 2
028 Textiles: Manufacturing 1 0 0 0 1 0 0 0 0 0 0 0 2
091 Motors: Expansible Chamber Type 0 0 0 1 0 0 0 0 0 0 0 1 2
266 Metallurgical Apparatus 1 0 1 0 0 0 0 0 0 0 0 0 2
386 Motion Video Signal Processing for Recording or Reproducing 2 0 0 0 0 0 0 0 0 0 0 0 2
338 Electrical Resistors 0 0 0 1 0 0 0 1 0 0 0 0 2
065 Glass Manufacturing 1 0 0 0 1 0 0 0 0 0 0 0 2
007 Compound Hand Tools 0 0 0 0 0 0 0 0 1 0 0 0 1
027 Undertaking 0 0 0 0 0 0 0 0 0 0 0 1 1
049 Movable or Removable Closures 0 0 1 0 0 0 0 0 0 0 0 0 1
076 Metal Tools and Implements, Making 0 0 0 1 0 0 0 0 0 0 0 0 1
082 Turning (e.g., for metal working) 1 0 0 0 0 0 0 0 0 0 0 0 1
086 Ammunition and Explosive-Charge Making 1 0 0 0 0 0 0 0 0 0 0 0 1
092 Expansible Chamber Devices 0 0 0 0 0 0 0 0 1 0 0 0 1
104 Railways 0 0 0 0 0 0 1 0 0 0 0 0 1
109 Safes, Bank Protection, or a Related Device 0 0 0 0 0 0 0 0 1 0 0 0 1
112 Sewing 0 1 0 0 0 0 0 0 0 0 0 0 1
140 Wireworking 0 0 0 1 0 0 0 0 0 0 0 0 1
150 Purses, Wallets, and Protective Covers 0 0 0 0 0 0 0 0 0 0 1 0 1
157 Wheelwright Machines 0 0 0 0 0 1 0 0 0 0 0 0 1
164 Metal Founding 0 0 1 0 0 0 0 0 0 0 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 0 0 0 0 0 0 0 0 1 0 1
191 Electricity: Transmission To Vehicles 0 0 0 1 0 0 0 0 0 0 0 0 1
194 Check-Actuated Control Mechanisms 1 0 0 0 0 0 0 0 0 0 0 0 1
201 Distillation: Processes, Thermolytic 0 0 0 0 0 0 0 0 0 1 0 0 1
236 Automatic Temperature and Humidity Regulation 0 1 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 1
270 Sheet-Material Associating 0 0 0 0 0 0 0 0 0 0 1 0 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 0 0 0 0 0 0 1 0 0 0 1
349 Liquid Crystal Cells, Elements and Systems 0 0 1 0 0 0 0 0 0 0 0 0 1
360 Dynamic Magnetic Information Storage or Retrieval 0 0 0 0 0 0 0 0 0 0 1 0 1
369 Dynamic Information Storage or Retrieval 0 1 0 0 0 0 0 0 0 0 0 0 1
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 0 0 1 0 0 0 0 0 0 0 1
399 Electrophotography 0 0 0 0 0 0 1 0 0 0 0 0 1
410 Freight Accommodation On Freight Carrier 0 0 0 0 0 0 0 1 0 0 0 0 1
420 Alloys or Metallic Compositions 0 0 0 0 1 0 0 0 0 0 0 0 1
432 Heating 0 1 0 0 0 0 0 0 0 0 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 1 0 0 0 0 0 0 0 0 1
483 Tool Changing 0 0 0 0 0 0 0 1 0 0 0 0 1
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 0 0 1
585 Chemistry of Hydrocarbon Compounds 0 0 0 0 0 0 0 0 1 0 0 0 1
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 1 0 0 1
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 0 0 1 0 0 0 0 0 0 0 1
131 Tobacco 0 0 0 0 1 0 0 0 0 0 0 0 1
293 Vehicle Fenders 0 0 0 1 0 0 0 0 0 0 0 0 1
299 Mining or In Situ Disintegration of Hard Material 0 0 0 0 0 0 1 0 0 0 0 0 1
332 Modulators 0 0 0 0 0 0 0 1 0 0 0 0 1
472 Amusement Devices 1 0 0 0 0 0 0 0 0 0 0 0 1
476 Friction Gear Transmission Systems or Components 0 0 1 0 0 0 0 0 0 0 0 0 1
175 Boring or Penetrating the Earth 0 0 0 0 0 0 1 0 0 0 0 0 1
190 Trunks and Hand-Carried Luggage 0 0 0 0 1 0 0 0 0 0 0 0 1
285 Pipe Joints or Couplings 0 1 0 0 0 0 0 0 0 0 0 0 1
347 Incremental Printing of Symbolic Information 1 0 0 0 0 0 0 0 0 0 0 0 1
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 1 0 0 0 0 0 0 0 0 0 0 1
054 Harness for Working Animal 0 0 0 1 0 0 0 0 0 0 0 0 1
ALL ALL CLASSES 645 685 669 650 602 523 601 532 531 576 711 667 7390


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Electronic Information Products Division - PTMT
P.O Box 1450
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tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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