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

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 2007 - 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

MINNESOTA

( 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 )

The following table displays technology classes and counts of utility patents classified in them; patents are distributed either by year of patent grant or by year of patent application.
Class Class Title 2007 2008 2009 2010 2011 Total
607 Surgery: Light, Thermal, and Electrical Application 222 150 206 349 362 1289
128 Surgery (includes Class 600) 109 77 99 150 206 641
606 Surgery (instruments) 73 48 65 116 120 422
707 DP: Database and File Management or Data Structures (Data Processing) 45 61 77 112 124 419
604 Surgery (Medicators and Receptors) 37 39 57 102 109 344
385 Optical Waveguides 53 72 67 73 58 323
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 60 56 52 82 68 318
360 Dynamic Magnetic Information Storage or Retrieval 64 60 47 57 61 289
711 Memory (Electrical Computers and Digital Processing Systems) 53 47 61 49 77 287
370 Multiplex Communications 22 53 49 85 71 280
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 40 25 41 61 106 273
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 33 36 49 57 91 266
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 31 43 59 72 58 263
073 Measuring and Testing 48 48 45 50 59 250
714 Error Detection/Correction and Fault Detection/Recovery 41 47 48 54 53 243
428 Stock Material or Miscellaneous Articles 40 50 28 59 48 225
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 41 40 33 55 51 220
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 22 30 32 68 67 219
361 Electricity: Electrical Systems and Devices 33 51 47 40 43 214
365 Static Information Storage and Retrieval 24 25 21 51 86 207
340 Communications: Electrical 26 44 40 44 38 192
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 27 28 16 48 48 167
439 Electrical Connectors 39 39 36 27 25 166
435 Chemistry: Molecular Biology and Microbiology 24 24 24 45 37 154
710 Input/Output (Electrical Computers and Digital Processing Systems) 26 30 26 35 33 150
029 Metal Working 24 21 32 37 26 140
702 DP: Measuring, Calibrating, or Testing (Data Processing) 19 26 35 24 35 139
210 Liquid Purification or Separation 17 17 31 32 39 136
700 DP: Generic Control Systems or Specific Applications (Data Processing) 13 20 20 35 41 129
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 19 25 21 28 33 126
356 Optics: Measuring and Testing 22 23 18 31 28 122
438 Semiconductor Device Manufacturing: Process 26 23 23 23 27 122
324 Electricity: Measuring and Testing 30 20 27 23 21 121
055 Gas Separation 18 22 15 17 38 110
713 Support (Electrical Computers and Digital Processing Systems) 17 25 17 24 25 108
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 10 9 15 38 33 105
382 Image Analysis 12 13 19 21 37 102
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 46 31 13 9 3 102
426 Food or Edible Material: Processes, Compositions, and Products 16 20 16 24 23 99
280 Land Vehicles 21 16 15 21 24 97
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 20 13 19 15 30 97
248 Supports (e.g., for holding articles, etc.) 19 15 15 19 28 96
345 Computer Graphics Processing and Selective Visual Display Systems 13 11 14 22 36 96
455 Telecommunications 10 16 30 18 21 95
052 Static Structures (e.g., Buildings) 13 13 17 24 27 94
359 Optical: Systems and Elements 24 24 16 13 17 94
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 15 17 12 27 22 93
362 Illumination 27 20 16 15 11 89
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 17 11 15 23 22 88
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 15 13 15 21 22 86
427 Coating Processes 15 9 17 26 18 85
180 Motor Vehicles 6 13 18 27 19 83
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 15 16 15 15 21 82
532 Organic Compounds (includes Classes 532-570) 14 16 9 21 20 80
717 DP: Software Development, Installation, and Management (Data Processing) 20 17 11 13 18 79
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 12 10 13 17 23 75
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 11 8 24 31 74
375 Pulse or Digital Communications 10 13 15 21 13 72
137 Fluid Handling 10 16 16 18 11 71
250 Radiant Energy 12 19 11 13 15 70
482 Exercise Devices 5 17 14 18 11 65
174 Electricity: Conductors and Insulators 15 9 13 13 14 64
451 Abrading 23 15 11 9 6 64
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 19 7 5 18 13 62
206 Special Receptacle or Package 8 14 12 16 12 62
062 Refrigeration 9 9 4 16 15 53
381 Electrical Audio Signal Processing Systems and Devices 9 10 8 10 16 53
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 11 10 8 15 9 53
219 Electric Heating 9 9 5 18 11 52
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 7 12 6 12 15 52
040 Card, Picture, or Sign Exhibiting 11 8 6 11 15 51
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 15 5 15 7 9 51
726 Information Security 10 5 8 12 13 48
239 Fluid Sprinkling, Spraying, and Diffusing 6 6 6 17 12 47
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 3 11 16 9 8 47
436 Chemistry: Analytical and Immunological Testing 7 5 13 8 14 47
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 5 7 12 10 9 43
119 Animal Husbandry 4 12 9 6 11 42
043 Fishing, Trapping, and Vermin Destroying 12 3 9 11 5 40
134 Cleaning and Liquid Contact with Solids 8 2 8 5 17 40
015 Brushing, Scrubbing, and General Cleaning 5 6 6 12 10 39
060 Power Plants 6 7 8 12 6 39
051 Abrasive Tool Making Process, Material, or Composition 11 4 12 0 9 36
326 Electronic Digital Logic Circuitry 11 11 4 7 3 36
172 Earth Working 6 5 9 9 6 35
198 Conveyors: Power-Driven 9 7 8 5 6 35
211 Supports: Racks 7 3 4 8 13 35
398 Optical Communications 3 4 4 12 12 35
473 Games Using Tangible Projectile 10 9 3 7 6 35
414 Material or Article Handling 8 10 6 5 5 34
005 Beds 6 4 8 6 9 33
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 6 5 7 7 8 33
114 Ships 12 9 6 2 3 32
053 Package Making 4 9 5 6 7 31
095 Gas Separation: Processes 3 7 3 10 7 30
252 Compositions 7 6 8 5 4 30
379 Telephonic Communications 7 8 6 4 5 30
220 Receptacles 4 3 8 4 10 29
236 Automatic Temperature and Humidity Regulation 5 1 4 11 8 29
033 Geometrical Instruments 6 6 8 1 7 28
072 Metal Deforming 7 3 1 7 10 28
349 Liquid Crystal Cells, Elements and Systems 3 5 2 8 10 28
404 Road Structure, Process, or Apparatus 3 6 5 8 6 28
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 8 6 4 7 3 28
310 Electrical Generator or Motor Structure 4 2 8 4 9 27
348 Television 3 7 6 4 7 27
358 Facsimile and Static Presentation Processing 5 6 5 5 6 27
602 Surgery: Splint, Brace, or Bandage 2 7 6 5 7 27
222 Dispensing (apparatus and process) 5 5 2 6 8 26
405 Hydraulic and Earth Engineering 3 8 6 6 3 26
601 Surgery: Kinesitherapy 1 6 6 7 6 26
056 Harvesters 2 8 6 8 1 25
307 Electrical Transmission or Interconnection Systems 2 4 6 6 7 25
331 Oscillators 3 7 7 5 3 25
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 7 5 6 6 25
118 Coating Apparatus 5 3 5 7 4 24
123 Internal-Combustion Engines 4 5 3 4 8 24
296 Land Vehicles: Bodies and Tops 1 6 4 9 4 24
297 Chairs and Seats 2 8 7 3 4 24
417 Pumps 2 1 7 7 7 24
433 Dentistry 6 4 4 7 3 24
037 Excavating 3 2 7 6 5 23
706 DP: Artificial Intelligence (Data Processing) 2 7 5 5 4 23
241 Solid Material Comminution or Disintegration 5 2 3 3 9 22
273 Amusement Devices: Games 4 5 6 3 4 22
366 Agitating (e.g., of articles and materials) 6 6 1 4 5 22
254 Implements or Apparatus for Applying Pushing or Pulling Force 3 2 6 4 6 21
318 Electricity: Motive Power Systems 2 3 5 6 5 21
380 Cryptography 2 4 3 4 8 21
096 Gas Separation: Apparatus 4 3 3 5 5 20
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 3 2 2 5 8 20
294 Handling: Hand and Hoist-Line Implements 1 6 1 7 5 20
002 Apparel 3 2 0 8 6 19
024 Buckles, Buttons, Clasps, Etc. 6 2 2 7 2 19
181 Acoustics 3 1 6 4 5 19
341 Coded Data Generation or Conversion 3 4 6 4 2 19
396 Photography 4 2 3 4 6 19
290 Prime-Mover Dynamo Plants 2 1 4 6 5 18
343 Communications: Radio Wave Antennas 4 6 2 3 3 18
084 Music 1 1 7 3 5 17
101 Printing 3 3 7 2 2 17
106 Compositions: Coating or Plastic 3 3 5 3 3 17
126 Stoves and Furnaces 4 3 2 4 4 17
242 Winding, Tensioning, or Guiding 6 2 2 3 4 17
244 Aeronautics and Astronautics 1 3 3 3 7 17
347 Incremental Printing of Symbolic Information 5 6 1 1 4 17
434 Education and Demonstration 7 3 3 1 3 17
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 2 2 2 6 5 17
229 Envelopes, Wrappers, and Paperboard Boxes 0 2 5 5 4 16
330 Amplifiers 2 5 1 2 6 16
353 Optics: Image Projectors 4 3 3 4 2 16
401 Coating Implements with Material Supply 4 3 3 5 1 16
463 Amusement Devices: Games 2 3 3 3 5 16
102 Ammunition and Explosives 5 4 3 3 0 15
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 4 2 1 8 0 15
285 Pipe Joints or Couplings 2 5 3 4 1 15
725 Interactive Video Distribution Systems 3 2 3 4 3 15
192 Clutches and Power-Stop Control 3 1 3 3 4 14
204 Chemistry: Electrical and Wave Energy 5 3 1 4 1 14
313 Electric Lamp and Discharge Devices 6 3 1 0 4 14
372 Coherent Light Generators 5 5 1 3 0 14
431 Combustion 5 2 2 2 3 14
144 Woodworking 2 3 2 3 3 13
251 Valves and Valve Actuation 1 4 0 5 3 13
369 Dynamic Information Storage or Retrieval 1 5 1 2 4 13
501 Compositions: Ceramic 3 1 5 3 1 13
708 Arithmetic Processing and Calculating (Electrical Computers) 2 2 4 4 1 13
036 Boots, Shoes, and Leggings 1 2 1 7 1 12
049 Movable or Removable Closures 1 2 1 7 1 12
070 Locks 7 3 2 0 0 12
200 Electricity: Circuit Makers and Breakers 4 0 3 0 5 12
315 Electric Lamp and Discharge Devices: Systems 2 0 1 2 7 12
034 Drying and Gas or Vapor Contact with Solids 2 3 0 1 5 11
135 Tent, Canopy, Umbrella, or Cane 1 0 2 2 6 11
165 Heat Exchange 2 3 2 0 4 11
182 Fire Escape, Ladder, or Scaffold 6 2 0 0 3 11
216 Etching a Substrate: Processes 2 5 2 0 2 11
351 Optics: Eye Examining, Vision Testing and Correcting 1 4 3 3 0 11
374 Thermal Measuring and Testing 2 3 1 4 1 11
440 Marine Propulsion 1 2 4 2 2 11
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 2 3 0 3 2 10
065 Glass Manufacturing 4 0 2 0 4 10
074 Machine Element or Mechanism 1 2 2 4 1 10
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 2 2 3 3 10
083 Cutting 4 0 1 2 3 10
089 Ordnance 3 1 3 1 2 10
124 Mechanical Guns and Projectors 1 1 2 3 3 10
132 Toilet 0 4 3 0 3 10
160 Flexible or Portable Closure, Partition, or Panel 6 0 0 2 2 10
209 Classifying, Separating, and Assorting Solids 2 2 2 0 4 10
221 Article Dispensing 2 2 2 1 3 10
446 Amusement Devices: Toys 3 1 2 1 3 10
016 Miscellaneous Hardware 1 0 1 4 3 9
030 Cutlery 3 0 0 0 6 9
042 Firearms 0 1 3 2 3 9
047 Plant Husbandry 1 0 2 1 5 9
138 Pipes and Tubular Conduits 1 2 2 1 3 9
169 Fire Extinguishers 1 4 2 1 1 9
256 Fences 0 3 1 3 2 9
261 Gas and Liquid Contact Apparatus 2 0 1 4 2 9
271 Sheet Feeding or Delivering 2 2 1 3 1 9
400 Typewriting Machines 2 3 0 2 2 9
423 Chemistry of Inorganic Compounds 5 2 1 1 0 9
452 Butchering 1 3 1 2 2 9
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 0 1 3 4 9
164 Metal Founding 3 0 1 3 1 8
227 Elongated-Member-Driving Apparatus 2 0 0 3 3 8
269 Work Holders 3 1 0 0 4 8
320 Electricity: Battery or Capacitor Charging or Discharging 1 0 3 0 4 8
323 Electricity: Power Supply or Regulation Systems 3 3 0 0 2 8
363 Electric Power Conversion Systems 1 1 0 3 3 8
392 Electric Resistance Heating Devices 1 1 2 3 1 8
403 Joints and Connections 1 0 2 2 3 8
506 Combinatorial Chemistry Technology: Method, Library, Apparatus 0 1 2 1 4 8
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 2 2 3 1 8
100 Presses 1 3 1 1 1 7
116 Signals and Indicators 2 0 1 3 1 7
175 Boring or Penetrating the Earth 0 1 0 4 2 7
177 Weighing Scales 1 3 0 2 1 7
188 Brakes 1 2 1 3 0 7
292 Closure Fasteners 1 3 1 0 2 7
333 Wave Transmission Lines and Networks 2 2 1 1 1 7
378 X-Ray or Gamma Ray Systems or Devices 0 1 0 3 3 7
399 Electrophotography 2 2 0 2 1 7
415 Rotary Kinetic Fluid Motors or Pumps 1 2 0 1 3 7
445 Electric Lamp or Space Discharge Component or Device Manufacturing 4 0 0 0 3 7
720 Dynamic Optical Information Storage or Retrieval 2 2 0 3 0 7
004 Baths, Closets, Sinks, and Spittoons 2 1 1 0 2 6
092 Expansible Chamber Devices 0 4 0 1 1 6
099 Foods and Beverages: Apparatus 0 1 1 3 1 6
104 Railways 1 3 0 0 2 6
249 Static Molds 2 0 1 2 1 6
283 Printed Matter 2 0 2 0 2 6
305 Wheel Substitutes for Land Vehicles 2 0 0 2 2 6
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 3 0 2 0 6
081 Tools 3 0 0 2 0 5
127 Sugar, Starch, and Carbohydrates 1 0 0 3 1 5
148 Metal Treatment 0 2 0 1 2 5
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 3 1 1 5
224 Package and Article Carriers 1 0 0 1 3 5
298 Land Vehicles: Dumping 0 1 1 2 1 5
322 Electricity: Single Generator Systems 0 0 2 0 3 5
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 1 3 0 5
383 Flexible Bags 1 1 1 1 1 5
386 Motion Video Signal Processing for Recording or Reproducing 0 0 2 2 1 5
410 Freight Accommodation On Freight Carrier 1 0 0 2 2 5
441 Buoys, Rafts, and Aquatic Devices 2 0 0 3 0 5
475 Planetary Gear Transmission Systems or Components 2 2 1 0 0 5
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 0 0 2 2 5
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 4 1 0 0 0 5
108 Horizontally Supported Planar Surfaces 2 0 0 1 1 4
110 Furnaces 1 0 0 1 2 4
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 2 0 0 2 4
122 Liquid Heaters and Vaporizers 0 2 1 1 0 4
125 Stone Working 0 1 0 0 3 4
215 Bottles and Jars 0 1 0 1 2 4
223 Apparel Apparatus 0 0 0 3 1 4
228 Metal Fusion Bonding 0 0 1 3 0 4
267 Spring Devices 2 0 0 1 1 4
303 Fluid-Pressure and Analogous Brake Systems 1 0 1 2 0 4
312 Supports: Cabinet Structure 0 1 0 1 2 4
336 Inductor Devices 1 0 1 1 1 4
338 Electrical Resistors 1 0 0 2 1 4
355 Photocopying 0 2 2 0 0 4
420 Alloys or Metallic Compositions 0 1 1 1 1 4
472 Amusement Devices 1 1 0 0 2 4
474 Endless Belt Power Transmission Systems or Components 2 1 1 0 0 4
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 2 1 0 1 0 4
091 Motors: Expansible Chamber Type 0 0 1 0 2 3
111 Planting 0 2 1 0 0 3
152 Resilient Tires and Wheels 0 0 0 1 2 3
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 1 0 1 0 3
190 Trunks and Hand-Carried Luggage 0 0 0 1 2 3
266 Metallurgical Apparatus 1 0 1 0 1 3
277 Seal for a Joint or Juncture 1 1 0 1 0 3
281 Books, Strips, and Leaves 0 2 0 1 0 3
301 Land Vehicles: Wheels and Axles 1 0 0 2 0 3
384 Bearings 1 0 2 0 0 3
408 Cutting by Use of Rotating Axially Moving Tool 1 0 0 0 2 3
418 Rotary Expansible Chamber Devices 1 0 1 1 0 3
454 Ventilation 0 0 2 0 1 3
477 Interrelated Power Delivery Controls, Including Engine Control 1 2 0 0 0 3
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 1 1 0 0 3
585 Chemistry of Hydrocarbon Compounds 1 0 0 1 1 3
027 Undertaking 1 0 1 0 0 2
054 Harness for Working Animal 1 0 0 1 0 2
059 Chain, Staple, and Horseshoe Making 1 0 0 0 1 2
063 Jewelry 1 0 1 0 0 2
071 Chemistry: Fertilizers 0 1 0 0 1 2
131 Tobacco 1 0 0 0 1 2
139 Textiles: Weaving 0 0 1 1 0 2
150 Purses, Wallets, and Protective Covers 0 1 0 0 1 2
162 Paper Making and Fiber Liberation 0 1 0 1 0 2
232 Deposit and Collection Receptacles 0 1 0 1 0 2
237 Heating Systems 0 0 0 1 1 2
246 Railway Switches and Signals 0 0 1 0 1 2
299 Mining or In Situ Disintegration of Hard Material 0 0 0 1 1 2
368 Horology: Time Measuring Systems or Devices 0 0 1 0 1 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 1 1 0 2
007 Compound Hand Tools 0 0 0 1 0 1
028 Textiles: Manufacturing 0 0 0 0 1 1
044 Fuel and Related Compositions 0 0 0 1 0 1
048 Gas: Heating and Illuminating 0 1 0 0 0 1
068 Textiles: Fluid Treating Apparatus 0 0 0 0 1 1
076 Metal Tools and Implements, Making 0 0 0 1 0 1
082 Turning (e.g., for metal working) 0 0 0 1 0 1
086 Ammunition and Explosive-Charge Making 0 1 0 0 0 1
112 Sewing 1 0 0 0 0 1
136 Batteries: Thermoelectric and Photoelectric 0 1 0 0 0 1
140 Wireworking 0 1 0 0 0 1
149 Explosive and Thermic Compositions or Charges 0 0 0 0 1 1
184 Lubrication 0 0 0 0 1 1
185 Motors: Spring, Weight, or Animal Powered 0 0 0 1 0 1
186 Merchandising 0 0 0 1 0 1
194 Check-Actuated Control Mechanisms 0 0 1 0 0 1
212 Traversing Hoists 0 0 0 0 1 1
225 Severing by Tearing or Breaking 0 1 0 0 0 1
226 Advancing Material of Indeterminate Length 1 0 0 0 0 1
234 Selective Cutting (e.g., Punching) 0 0 0 1 0 1
279 Chucks or Sockets 0 0 0 0 1 1
332 Modulators 0 0 1 0 0 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 0 0 1 1
406 Conveyors: Fluid Current 0 0 0 1 0 1
407 Cutters, for Shaping 0 1 0 0 0 1
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 1 0 0 1
416 Fluid Reaction Surfaces (i.e., Impellers) 1 0 0 0 0 1
419 Powder Metallurgy Processes 0 0 1 0 0 1
432 Heating 0 0 0 0 1 1
460 Crop Threshing or Separating 0 0 0 0 1 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 1 0 0 0 1
492 Roll or Roller 0 0 0 1 0 1
494 Imperforate Bowl: Centrifugal Separators 0 0 0 0 1 1
504 Plant Protecting and Regulating Compositions 0 0 0 0 1 1
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 0 0 1 1
ALL ALL CLASSES 2554 2535 2625 3597 3860 15171


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P.O Box 1450
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fax: (571) 273-0110
email: oeip@uspto.gov

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