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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 2008 - 2012 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

SWITZERLAND

( 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 by year of patent grant.
Class Class Title 2008 2009 2010 2011 2012 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 97 106 149 147 177 676
532 Organic Compounds (includes Classes 532-570) 51 43 72 72 75 313
368 Horology: Time Measuring Systems or Devices 51 47 58 39 52 247
073 Measuring and Testing 31 39 38 33 46 187
606 Surgery (instruments) 10 19 35 45 68 177
604 Surgery (Medicators and Receptors) 23 23 41 47 40 174
435 Chemistry: Molecular Biology and Microbiology 18 17 43 43 28 149
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 12 22 40 32 41 147
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 31 23 31 20 14 119
381 Electrical Audio Signal Processing Systems and Devices 19 21 21 33 24 118
356 Optics: Measuring and Testing 18 22 27 16 22 105
428 Stock Material or Miscellaneous Articles 15 7 17 36 30 105
370 Multiplex Communications 16 12 23 21 15 87
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 10 11 25 21 19 86
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 10 10 24 20 20 84
250 Radiant Energy 12 21 16 16 17 82
128 Surgery (includes Class 600) 13 11 17 12 28 81
324 Electricity: Measuring and Testing 16 21 15 12 17 81
359 Optical: Systems and Elements 9 21 17 23 9 79
702 DP: Measuring, Calibrating, or Testing (Data Processing) 15 15 19 14 16 79
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 6 17 15 16 21 75
029 Metal Working 11 16 14 14 19 74
060 Power Plants 17 20 10 14 11 72
340 Communications: Electrical 14 10 19 13 14 70
713 Support (Electrical Computers and Digital Processing Systems) 9 15 15 12 17 68
375 Pulse or Digital Communications 12 7 19 10 17 65
455 Telecommunications 4 14 16 18 13 65
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 5 8 19 12 14 58
198 Conveyors: Power-Driven 9 10 9 15 14 57
270 Sheet-Material Associating 7 8 9 19 13 56
310 Electrical Generator or Motor Structure 6 9 11 21 9 56
707 DP: Database and File Management or Data Structures (Data Processing) 1 7 11 16 20 55
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 5 13 12 11 13 54
361 Electricity: Electrical Systems and Devices 10 12 8 13 10 53
427 Coating Processes 3 6 11 20 13 53
415 Rotary Kinetic Fluid Motors or Pumps 10 8 12 12 10 52
099 Foods and Beverages: Apparatus 7 10 16 7 10 50
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 4 5 14 14 11 48
382 Image Analysis 3 10 8 10 16 47
700 DP: Generic Control Systems or Specific Applications (Data Processing) 6 8 10 15 8 47
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 8 3 4 12 18 45
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 6 5 8 15 11 45
345 Computer Graphics Processing and Selective Visual Display Systems 9 8 6 9 11 43
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 11 15 8 5 3 42
222 Dispensing (apparatus and process) 1 7 6 14 13 41
426 Food or Edible Material: Processes, Compositions, and Products 3 3 6 12 17 41
380 Cryptography 4 10 11 6 9 40
106 Compositions: Coating or Plastic 7 4 11 6 11 39
438 Semiconductor Device Manufacturing: Process 6 7 12 5 9 39
385 Optical Waveguides 12 8 10 4 4 38
433 Dentistry 11 4 8 5 9 37
204 Chemistry: Electrical and Wave Energy 5 2 17 7 5 36
714 Error Detection/Correction and Fault Detection/Recovery 7 9 5 4 11 36
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 7 6 4 6 12 35
726 Information Security 2 3 2 12 16 35
052 Static Structures (e.g., Buildings) 1 2 7 7 17 34
365 Static Information Storage and Retrieval 7 7 2 9 9 34
271 Sheet Feeding or Delivering 8 7 8 5 5 33
360 Dynamic Magnetic Information Storage or Retrieval 5 3 5 12 8 33
177 Weighing Scales 7 5 7 4 9 32
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 5 5 11 7 4 32
341 Coded Data Generation or Conversion 5 9 5 7 6 32
369 Dynamic Information Storage or Retrieval 6 4 9 9 4 32
033 Geometrical Instruments 9 7 7 3 5 31
366 Agitating (e.g., of articles and materials) 5 1 8 4 12 30
015 Brushing, Scrubbing, and General Cleaning 2 5 4 10 8 29
219 Electric Heating 4 7 7 3 8 29
206 Special Receptacle or Package 3 3 9 7 6 28
137 Fluid Handling 6 3 6 5 7 27
318 Electricity: Motive Power Systems 4 4 2 5 11 26
363 Electric Power Conversion Systems 5 5 5 4 7 26
280 Land Vehicles 6 3 4 4 8 25
439 Electrical Connectors 4 3 8 4 5 24
504 Plant Protecting and Regulating Compositions 3 6 5 6 4 24
512 Perfume Compositions 4 4 8 3 5 24
210 Liquid Purification or Separation 2 5 4 6 6 23
252 Compositions 4 6 3 1 9 23
331 Oscillators 3 3 5 8 4 23
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 2 2 9 3 7 23
139 Textiles: Weaving 4 5 10 2 1 22
431 Combustion 2 4 2 13 1 22
607 Surgery: Light, Thermal, and Electrical Application 3 2 3 5 9 22
053 Package Making 5 1 5 4 6 21
174 Electricity: Conductors and Insulators 3 4 5 6 3 21
239 Fluid Sprinkling, Spraying, and Diffusing 3 5 1 11 1 21
362 Illumination 4 2 8 5 2 21
416 Fluid Reaction Surfaces (i.e., Impellers) 5 3 5 1 7 21
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 9 2 3 5 21
024 Buckles, Buttons, Clasps, Etc. 4 3 4 4 5 20
072 Metal Deforming 3 10 1 2 4 20
074 Machine Element or Mechanism 4 3 4 4 5 20
101 Printing 3 4 1 3 9 20
307 Electrical Transmission or Interconnection Systems 6 3 2 6 3 20
451 Abrading 6 2 3 2 7 20
717 DP: Software Development, Installation, and Management (Data Processing) 3 2 3 5 7 20
030 Cutlery 4 2 3 4 6 19
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 3 5 1 5 5 19
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 3 5 3 7 1 19
436 Chemistry: Analytical and Immunological Testing 1 7 3 6 2 19
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 3 0 4 8 4 19
083 Cutting 1 3 6 3 5 18
118 Coating Apparatus 1 2 5 6 4 18
164 Metal Founding 2 4 1 2 9 18
227 Elongated-Member-Driving Apparatus 6 3 2 2 5 18
372 Coherent Light Generators 1 3 4 3 7 18
601 Surgery: Kinesitherapy 3 6 4 3 2 18
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 1 5 1 3 8 18
348 Television 1 1 2 4 9 17
057 Textiles: Spinning, Twisting, and Twining 0 1 9 3 3 16
248 Supports (e.g., for holding articles, etc.) 2 0 2 5 7 16
343 Communications: Radio Wave Antennas 4 2 3 2 5 16
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1 4 2 3 6 16
711 Memory (Electrical Computers and Digital Processing Systems) 5 2 1 1 7 16
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 0 2 5 5 3 15
351 Optics: Eye Examining, Vision Testing and Correcting 5 0 1 6 3 15
241 Solid Material Comminution or Disintegration 3 1 5 3 2 14
251 Valves and Valve Actuation 1 3 2 3 5 14
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 0 1 2 4 6 13
181 Acoustics 2 1 4 3 3 13
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 1 2 4 5 13
220 Receptacles 1 0 2 5 5 13
417 Pumps 1 2 1 2 7 13
706 DP: Artificial Intelligence (Data Processing) 1 1 3 1 7 13
084 Music 5 1 3 1 2 12
123 Internal-Combustion Engines 1 2 3 2 4 12
162 Paper Making and Fiber Liberation 1 4 2 2 3 12
173 Tool Driving or Impacting 3 2 3 3 1 12
180 Motor Vehicles 2 1 3 5 1 12
228 Metal Fusion Bonding 3 2 1 3 3 12
285 Pipe Joints or Couplings 3 1 1 5 2 12
330 Amplifiers 2 1 1 5 3 12
378 X-Ray or Gamma Ray Systems or Devices 3 0 2 4 3 12
414 Material or Article Handling 2 1 5 1 3 12
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 2 2 3 2 3 12
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 2 1 3 3 3 12
725 Interactive Video Distribution Systems 1 1 3 4 3 12
028 Textiles: Manufacturing 5 2 2 2 0 11
095 Gas Separation: Processes 1 0 6 3 1 11
283 Printed Matter 0 0 5 3 3 11
297 Chairs and Seats 4 3 1 2 1 11
323 Electricity: Power Supply or Regulation Systems 1 4 1 3 2 11
347 Incremental Printing of Symbolic Information 2 2 4 3 0 11
374 Thermal Measuring and Testing 3 3 5 0 0 11
423 Chemistry of Inorganic Compounds 0 2 0 5 4 11
710 Input/Output (Electrical Computers and Digital Data Processing Systems) 1 1 4 3 2 11
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 2 1 2 3 3 11
002 Apparel 0 0 3 2 5 10
062 Refrigeration 0 2 1 4 3 10
134 Cleaning and Liquid Contact with Solids 2 0 4 2 2 10
200 Electricity: Circuit Makers and Breakers 1 1 2 4 2 10
269 Work Holders 2 0 2 3 3 10
294 Handling: Hand and Hoist-Line Implements 2 1 1 1 5 10
300 Brush, Broom, and Mop Making 4 3 0 2 1 10
401 Coating Implements with Material Supply 3 2 3 1 1 10
403 Joints and Connections 2 1 3 3 1 10
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 1 1 3 4 1 10
004 Baths, Closets, Sinks, and Spittoons 1 0 1 4 3 9
065 Glass Manufacturing 1 1 0 4 3 9
131 Tobacco 0 0 3 3 3 9
138 Pipes and Tubular Conduits 0 3 2 1 3 9
148 Metal Treatment 0 3 1 4 1 9
315 Electric Lamp and Discharge Devices: Systems 1 3 0 1 4 9
379 Telephonic Communications 5 0 3 0 1 9
408 Cutting by Use of Rotating Axially Moving Tool 3 2 2 0 2 9
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 1 3 2 3 9
089 Ordnance 0 0 2 3 3 8
100 Presses 1 1 2 0 4 8
188 Brakes 2 2 0 0 4 8
261 Gas and Liquid Contact Apparatus 2 0 2 1 3 8
333 Wave Transmission Lines and Networks 0 1 2 4 1 8
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 3 2 1 1 8
501 Compositions: Ceramic 1 0 2 4 1 8
055 Gas Separation 0 1 3 1 2 7
096 Gas Separation: Apparatus 2 1 0 1 3 7
102 Ammunition and Explosives 0 2 2 1 2 7
135 Tent, Canopy, Umbrella, or Cane 1 0 1 4 1 7
244 Aeronautics and Astronautics 0 0 0 1 6 7
313 Electric Lamp and Discharge Devices 2 1 1 0 3 7
320 Electricity: Battery or Capacitor Charging or Discharging 0 0 1 1 5 7
349 Liquid Crystal Cells, Elements and Systems 1 0 3 2 1 7
358 Facsimile and Static Presentation Processing 3 0 2 1 1 7
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 3 3 1 0 0 7
475 Planetary Gear Transmission Systems or Components 0 2 1 2 2 7
708 Arithmetic Processing and Calculating (Electrical Computers) 1 2 0 3 1 7
005 Beds 3 1 0 0 2 6
036 Boots, Shoes, and Leggings 1 2 1 0 2 6
063 Jewelry 0 2 2 1 1 6
081 Tools 2 3 1 0 0 6
112 Sewing 3 1 0 0 2 6
215 Bottles and Jars 0 2 0 2 2 6
216 Etching a Substrate: Processes 0 1 2 2 1 6
242 Winding, Tensioning, or Guiding 2 1 2 1 0 6
336 Inductor Devices 1 0 0 4 1 6
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 0 2 1 2 6
412 Bookbinding: Process and Apparatus 0 1 1 2 2 6
482 Exercise Devices 1 2 1 0 2 6
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 0 0 0 4 2 6
016 Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, Etc.) 1 0 0 3 1 5
019 Textiles: Fiber Preparation 0 2 2 0 1 5
034 Drying and Gas or Vapor Contact with Solids 4 1 0 0 0 5
038 Textiles: Ironing or Smoothing 2 1 1 0 1 5
047 Plant Husbandry 0 2 1 1 1 5
066 Textiles: Knitting 0 1 4 0 0 5
070 Locks 1 2 0 1 1 5
092 Expansible Chamber Devices 4 0 1 0 0 5
104 Railways 1 0 1 2 1 5
105 Railway Rolling Stock 2 2 0 1 0 5
126 Stoves and Furnaces 0 0 1 2 2 5
160 Flexible or Portable Closure, Partition, or Panel 2 1 1 0 1 5
165 Heat Exchange 0 2 1 1 1 5
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 2 1 2 0 5
279 Chucks or Sockets 1 0 0 2 2 5
312 Supports: Cabinet Structure 0 0 1 2 2 5
398 Optical Communications 1 0 1 2 1 5
432 Heating 1 0 0 1 3 5
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 1 1 1 1 5
602 Surgery: Splint, Brace, or Bandage 0 0 1 3 1 5
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 0 2 2 1 0 5
850 Scanning-Probe Techniques or Apparatus; Applications of Scanning-Probe Techniques, e.g., Scanning Probe Microscopy [Spm] 0 0 1 1 3 5
037 Excavating 0 0 1 3 0 4
040 Card, Picture, or Sign Exhibiting 0 1 2 1 0 4
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 1 1 0 2 4
110 Furnaces 2 0 1 0 1 4
194 Check-Actuated Control Mechanisms 1 0 0 1 2 4
277 Seal for a Joint or Juncture 0 0 4 0 0 4
290 Prime-Mover Dynamo Plants 0 1 1 0 2 4
301 Land Vehicles: Wheels and Axles 0 0 1 1 2 4
326 Electronic Digital Logic Circuitry 0 1 1 2 0 4
384 Bearings 0 0 3 1 0 4
404 Road Structure, Process, or Apparatus 1 0 2 1 0 4
405 Hydraulic and Earth Engineering 1 0 2 0 1 4
409 Gear Cutting, Milling, or Planing 0 0 2 1 1 4
420 Alloys or Metallic Compositions 0 0 0 2 2 4
434 Education and Demonstration 1 1 0 0 2 4
463 Amusement Devices: Games 0 0 1 1 2 4
494 Imperforate Bowl: Centrifugal Separators 0 0 0 3 1 4
716 Computer-Aided Design and Analysis of Circuits and Semiconductor Masks 2 0 0 1 1 4
048 Gas: Heating and Illuminating 1 0 0 0 2 3
049 Movable or Removable Closures 0 1 1 0 1 3
082 Turning (e.g., for metal working) 0 0 0 0 3 3
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 1 0 1 1 0 3
182 Fire Escape, Ladder, or Scaffold 0 1 0 2 0 3
192 Clutches and Power-Stop Control 1 2 0 0 0 3
209 Classifying, Separating, and Assorting Solids 0 0 0 1 2 3
226 Advancing Material of Indeterminate Length 2 0 0 1 0 3
229 Envelopes, Wrappers, and Paperboard Boxes 0 2 0 1 0 3
267 Spring Devices 0 0 2 1 0 3
281 Books, Strips, and Leaves 0 0 1 1 1 3
296 Land Vehicles: Bodies and Tops 0 0 2 1 0 3
329 Demodulators 0 0 2 0 1 3
338 Electrical Resistors 0 0 0 2 1 3
376 Induced Nuclear Reactions: Processes, Systems, and Elements 0 0 2 0 1 3
383 Flexible Bags 0 0 1 0 2 3
396 Photography 0 0 1 1 1 3
406 Conveyors: Fluid Current 0 0 0 0 3 3
413 Sheet Metal Container Making 0 0 1 0 2 3
418 Rotary Expansible Chamber Devices 1 1 0 1 0 3
440 Marine Propulsion 1 0 0 0 2 3
446 Amusement Devices: Toys 0 1 1 1 0 3
472 Amusement Devices 0 0 1 1 1 3
473 Games Using Tangible Projectile 1 0 0 2 0 3
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 0 1 2 3
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 0 2 0 0 1 3
505 Superconductor Technology: Apparatus, Material, Process 0 1 0 2 0 3
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 0 2 1 0 0 3
042 Firearms 1 0 0 0 1 2
043 Fishing, Trapping, and Vermin Destroying 0 0 0 2 0 2
044 Fuel and Related Compositions 1 0 1 0 0 2
059 Chain, Staple, and Horseshoe Making 0 1 1 0 0 2
108 Horizontally Supported Planar Surfaces 0 2 0 0 0 2
109 Safes, Bank Protection, or a Related Device 0 0 1 1 0 2
114 Ships 0 0 0 0 2 2
116 Signals and Indicators 0 2 0 0 0 2
125 Stone Working 0 0 0 0 2 2
136 Batteries: Thermoelectric and Photoelectric 0 0 0 1 1 2
208 Mineral Oils: Processes and Products 0 1 0 1 0 2
221 Article Dispensing 0 0 2 0 0 2
238 Railways: Surface Track 1 1 0 0 0 2
266 Metallurgical Apparatus 1 1 0 0 0 2
337 Electricity: Electrothermally or Thermally Actuated Switches 0 2 0 0 0 2
355 Photocopying 1 1 0 0 0 2
392 Electric Resistance Heating Devices 0 0 0 0 2 2
407 Cutters, for Shaping 0 0 1 1 0 2
454 Ventilation 0 0 0 1 1 2
474 Endless Belt Power Transmission Systems or Components 1 0 0 0 1 2
483 Tool Changing 0 2 0 0 0 2
492 Roll or Roller 1 1 0 0 0 2
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 0 0 0 2 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 2 0 0 2
720 Dynamic Optical Information Storage or Retrieval 1 0 0 1 0 2
007 Compound Hand Tools 1 0 0 0 0 1
068 Textiles: Fluid Treating Apparatus 0 1 0 0 0 1
076 Metal Tools and Implements, Making 0 0 0 0 1 1
087 Textiles: Braiding, Netting, and Lace Making 1 0 0 0 0 1
122 Liquid Heaters and Vaporizers 0 0 0 1 0 1
124 Mechanical Guns and Projectors 0 0 0 0 1 1
127 Sugar, Starch, and Carbohydrates 0 0 0 0 1 1
132 Toilet 0 0 1 0 0 1
149 Explosive and Thermic Compositions or Charges 0 1 0 0 0 1
152 Resilient Tires and Wheels 0 0 0 0 1 1
175 Boring or Penetrating the Earth 0 0 0 0 1 1
191 Electricity: Transmission To Vehicles 0 0 0 1 0 1
193 Conveyors, Chutes, Skids, Guides, and Ways 0 1 0 0 0 1
202 Distillation: Apparatus 0 0 0 1 0 1
203 Distillation: Processes, Separatory 0 0 0 1 0 1
211 Supports: Racks 0 0 0 0 1 1
212 Traversing Hoists 1 0 0 0 0 1
224 Package and Article Carriers 0 0 0 1 0 1
246 Railway Switches and Signals 0 0 1 0 0 1
249 Static Molds 0 0 0 0 1 1
292 Closure Fasteners 0 1 0 0 0 1
299 Mining or In Situ Disintegration of Hard Material 0 0 0 0 1 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 0 0 1 1
322 Electricity: Single Generator Systems 0 0 0 1 0 1
332 Modulators 0 0 1 0 0 1
353 Optics: Image Projectors 1 0 0 0 0 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 0 0 1 1
386 Motion Video Signal Processing for Recording or Reproducing 0 0 0 1 0 1
400 Typewriting Machines 0 0 1 0 0 1
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 0 0 1 0 0 1
410 Freight Accommodation On Freight Carrier 0 0 1 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 1 0 0 0 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 1 0 0 1
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 0 1 0 1
588 Hazardous or Toxic Waste Destruction or Containment 0 0 0 0 1 1
ALL ALL CLASSES 1112 1208 1608 1663 1831 7422


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U.S. Patent and Trademark Office
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P.O Box 1450
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tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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