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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

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

Count of 2000 - 2004 Utility Patent Grants,
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

NORTH CAROLINA

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 2000 2001 2002 2003 2004 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 97 126 112 120 73 528
455 Telecommunications 93 76 74 58 48 349
370 Multiplex Communications 43 57 50 69 68 287
385 Optical Waveguides 41 40 68 60 48 257
435 Chemistry: Molecular Biology and Microbiology 51 59 43 56 37 246
709 Multicomputer Data Transferring or Plural Processor Synchronization (Electrical Computers and Digital Processing Systems) 51 45 37 49 54 236
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 36 37 38 41 31 183
428 Stock Material or Miscellaneous Articles 37 34 39 42 18 170
375 Pulse or Digital Communications 25 27 33 38 44 167
532 Organic Compounds (includes Classes 532-570) 25 36 34 35 18 148
361 Electricity: Electrical Systems and Devices 33 35 27 19 21 135
128 Surgery (includes Class 600) 30 25 25 28 20 128
439 Electrical Connectors 36 35 14 21 21 127
713 Support (Electrical Computers and Digital Processing Systems) 18 18 12 28 41 117
710 Input/Output (Electrical Computers and Digital Processing Systems) 26 21 22 19 22 110
210 Liquid Purification or Separation 15 33 21 18 20 107
707 DP: Database and File Management or Data Structures (Data Processing) 12 16 28 32 19 107
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 8 16 15 32 27 98
379 Telephonic Communications 19 21 11 23 20 94
340 Communications: Electrical 17 21 13 16 21 88
219 Electric Heating 20 23 15 12 13 83
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 30 8 13 13 18 82
052 Static Structures (e.g., Buildings) 19 15 17 12 18 81
174 Electricity: Conductors and Insulators 17 18 17 17 12 81
714 Error Detection/Correction and Fault Detection/Recovery 10 13 11 27 18 79
073 Measuring and Testing 10 11 17 21 18 77
438 Semiconductor Device Manufacturing: Process 8 10 17 19 22 76
711 Memory (Electrical Computers and Digital Processing Systems) 11 20 12 11 20 74
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 23 13 10 14 13 73
062 Refrigeration 10 20 21 12 9 72
324 Electricity: Measuring and Testing 7 14 16 22 13 72
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 18 23 10 5 13 69
029 Metal Working 15 18 11 14 10 68
606 Surgery (instruments) 17 10 12 13 16 68
330 Amplifiers 10 19 11 12 12 64
345 Computer Graphics Processing and Selective Visual Display Systems 14 15 16 7 12 64
700 DP: Generic Control Systems or Specific Applications (Data Processing) 13 11 18 8 14 64
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 15 15 10 13 10 63
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 10 14 8 13 18 63
206 Special Receptacle or Package 12 6 13 14 14 59
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 17 16 11 10 4 58
343 Communications: Radio Wave Antennas 18 21 8 5 4 56
702 DP: Measuring, Calibrating, or Testing (Data Processing) 8 7 12 16 12 55
297 Chairs and Seats 14 6 7 9 17 53
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 8 7 17 5 15 52
066 Textiles: Knitting 12 17 6 6 10 51
427 Coating Processes 15 13 11 7 5 51
359 Optics: Systems and Elements 9 9 16 8 8 50
717 DP: Software Development, Installation, and Management (Data Processing) 6 13 5 16 8 48
362 Illumination 7 11 11 8 10 47
002 Apparel 11 13 7 8 7 46
005 Beds 11 6 6 8 15 46
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 21 9 7 7 2 46
363 Electric Power Conversion Systems 11 9 13 7 5 45
604 Surgery (Medicators and Receptors) 6 9 6 13 10 44
280 Land Vehicles 8 8 11 6 10 43
248 Supports (e.g., for holding articles, etc.) 8 8 10 12 4 42
242 Winding, Tensioning, or Guiding 11 4 10 10 6 41
310 Electrical Generator or Motor Structure 7 13 5 4 12 41
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 10 7 9 6 8 40
414 Material or Article Handling 14 9 5 6 6 40
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 5 7 9 10 9 40
119 Animal Husbandry 5 7 8 15 4 39
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 7 4 6 11 10 38
356 Optics: Measuring and Testing 5 6 11 9 7 38
057 Textiles: Spinning, Twisting, and Twining 7 6 13 5 6 37
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 10 8 12 3 4 37
323 Electricity: Power Supply or Regulation Systems 6 6 8 6 10 36
015 Brushing, Scrubbing, and General Cleaning 9 3 9 6 8 35
137 Fluid Handling 7 10 9 4 5 35
341 Coded Data Generation or Conversion 4 7 5 7 12 35
602 Surgery: Splint, Brace, or Bandage 12 4 6 6 6 34
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 2 6 6 10 10 34
160 Flexible or Portable Closure, Partition, or Panel 6 5 6 7 9 33
123 Internal-Combustion Engines 6 7 8 8 3 32
134 Cleaning and Liquid Contact with Solids 4 7 4 12 5 32
436 Chemistry: Analytical and Immunological Testing 3 4 6 14 5 32
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 4 8 2 6 11 31
033 Geometrical Instruments 4 4 9 2 11 30
056 Harvesters 7 7 4 4 8 30
250 Radiant Energy 4 4 7 6 9 30
252 Compositions 10 5 2 7 6 30
417 Pumps 13 3 5 3 6 30
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 2 7 8 6 7 30
222 Dispensing (apparatus and process) 7 4 5 6 7 29
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 7 7 6 2 7 29
180 Motor Vehicles 7 9 3 4 5 28
426 Food or Edible Material: Processes, Compositions, and Products 4 6 5 6 7 28
188 Brakes 4 9 6 5 2 26
211 Supports: Racks 5 5 7 2 7 26
312 Supports: Cabinet Structure 5 4 9 5 3 26
331 Oscillators 4 5 5 6 6 26
382 Image Analysis 6 4 4 3 9 26
719 Interprogram Communication or Interprocess Communication (Ipc) (Electrical Computers and Digital Processing Systems) 1 2 6 7 10 26
074 Machine Element or Mechanism 10 5 8 1 1 25
376 Induced Nuclear Reactions: Processes, Systems, and Elements 3 10 3 6 3 25
473 Games Using Tangible Projectile 7 5 2 6 5 25
083 Cutting 4 3 3 5 9 24
198 Conveyors: Power-Driven 5 4 3 5 7 24
405 Hydraulic and Earth Engineering 7 7 2 6 2 24
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 2 4 3 9 6 24
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 6 7 5 2 4 24
028 Textiles: Manufacturing 1 4 6 6 6 23
118 Coating Apparatus 3 2 5 7 6 23
131 Tobacco 7 3 6 2 5 23
192 Clutches and Power-Stop Control 1 3 7 2 10 23
365 Static Information Storage and Retrieval 1 7 2 5 8 23
400 Typewriting Machines 6 10 4 1 1 22
016 Miscellaneous Hardware 3 6 4 2 6 21
040 Card, Picture, or Sign Exhibiting 4 4 3 7 3 21
114 Ships 5 3 2 3 8 21
296 Land Vehicles: Bodies and Tops 5 3 2 5 6 21
307 Electrical Transmission or Interconnection Systems 6 6 3 2 4 21
320 Electricity: Battery or Capacitor Charging or Discharging 13 4 0 2 2 21
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 4 6 3 5 3 21
224 Package and Article Carriers 3 6 7 2 2 20
228 Metal Fusion Bonding 5 7 7 1 0 20
378 X-Ray or Gamma Ray Systems or Devices 3 3 6 5 3 20
434 Education and Demonstration 4 3 5 7 1 20
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 6 3 6 4 20
004 Baths, Closets, Sinks, and Spittoons 4 4 7 3 1 19
043 Fishing, Trapping, and Vermin Destroying 4 5 2 5 3 19
047 Plant Husbandry 4 2 6 4 3 19
220 Receptacles 7 6 0 4 2 19
403 Joints and Connections 2 1 7 2 7 19
423 Chemistry of Inorganic Compounds 5 5 2 3 4 19
482 Exercise Devices 4 2 7 2 4 19
718 Virtual Machine Task or Process Management or Task Management/Control (Electrical Computers and Digital Processing Systems) 3 3 4 2 7 19
024 Buckles, Buttons, Clasps, Etc. 3 4 3 4 4 18
053 Package Making 3 4 3 3 5 18
451 Abrading 3 6 3 3 3 18
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 0 3 7 8 18
065 Glass Manufacturing 4 4 6 2 1 17
126 Stoves and Furnaces 1 3 1 7 5 17
326 Electronic Digital Logic Circuitry 3 4 2 5 3 17
401 Coating Implements with Material Supply 2 3 5 4 3 17
454 Ventilation 4 2 5 3 3 17
034 Drying and Gas or Vapor Contact with Solids 3 4 3 4 2 16
036 Boots, Shoes, and Leggings 2 8 0 5 1 16
055 Gas Separation 6 2 2 2 4 16
139 Textiles: Weaving 7 5 2 2 0 16
446 Amusement Devices: Toys 4 6 4 0 2 16
060 Power Plants 1 5 6 3 0 15
068 Textiles: Fluid Treating Apparatus 5 4 4 2 0 15
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 4 3 3 3 2 15
244 Aeronautics 1 5 3 2 4 15
108 Horizontally Supported Planar Surfaces 4 1 4 3 2 14
112 Sewing 2 4 3 3 2 14
204 Chemistry: Electrical and Wave Energy 2 2 1 5 4 14
254 Implements or Apparatus for Applying Pushing or Pulling Force 5 3 3 2 1 14
383 Flexible Bags 2 4 3 2 3 14
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 3 2 1 4 4 14
095 Gas Separation: Processes 5 4 1 2 1 13
101 Printing 2 4 2 2 3 13
106 Compositions: Coating or Plastic 2 2 2 2 5 13
181 Acoustics 5 1 3 2 2 13
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 3 4 0 4 2 13
239 Fluid Sprinkling, Spraying, and Diffusing 5 2 2 1 3 13
267 Spring Devices 3 3 3 1 3 13
504 Plant Protecting and Regulating Compositions 2 5 3 2 1 13
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 3 2 2 2 4 13
030 Cutlery 2 3 3 2 2 12
200 Electricity: Circuit Makers and Breakers 3 1 2 3 3 12
294 Handling: Hand and Hoist-Line Implements 3 4 4 0 1 12
333 Wave Transmission Lines and Networks 3 3 1 5 0 12
336 Inductor Devices 2 4 1 1 4 12
347 Incremental Printing of Symbolic Information 3 2 4 1 2 12
418 Rotary Expansible Chamber Devices 1 4 2 3 2 12
607 Surgery: Light, Thermal, and Electrical Application 4 3 1 2 2 12
708 Arithmetic Processing and Calculating (Electrical Computers) 3 0 3 2 4 12
049 Movable or Removable Closures 1 2 5 1 2 11
081 Tools 1 3 1 4 2 11
116 Signals and Indicators 1 2 4 0 4 11
182 Fire Escape, Ladder, or Scaffold 0 2 0 6 3 11
251 Valves and Valve Actuation 6 1 2 1 1 11
409 Gear Cutting, Milling, or Planing 1 0 1 5 4 11
070 Locks 1 2 2 2 3 10
092 Expansible Chamber Devices 1 5 4 0 0 10
096 Gas Separation: Apparatus 1 3 3 1 2 10
348 Television 0 2 3 1 4 10
384 Bearings 0 5 1 0 4 10
037 Excavating 2 1 2 2 2 9
082 Turning (e.g., for metal working) 1 2 1 1 4 9
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 2 0 0 1 6 9
135 Tent, Canopy, Umbrella, or Cane 2 2 1 2 2 9
162 Paper Making and Fiber Liberation 0 3 2 2 2 9
229 Envelopes, Wrappers, and Paperboard Boxes 2 5 1 1 0 9
269 Work Holders 2 2 0 4 1 9
273 Amusement Devices: Games 2 1 1 2 3 9
292 Closure Fasteners 1 0 3 3 2 9
315 Electric Lamp and Discharge Devices: Systems 0 2 5 2 0 9
404 Road Structure, Process, or Apparatus 1 1 2 2 3 9
410 Freight Accommodation On Freight Carrier 2 1 3 1 2 9
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 2 2 1 3 1 9
706 DP: Artificial Intelligence (Data Processing) 1 1 2 3 2 9
099 Foods and Beverages: Apparatus 2 2 3 0 1 8
124 Mechanical Guns and Projectors 1 2 0 2 3 8
164 Metal Founding 1 3 1 3 0 8
165 Heat Exchange 1 1 1 2 3 8
380 Cryptography 2 1 1 3 1 8
585 Chemistry of Hydrocarbon Compounds 1 2 3 1 1 8
072 Metal Deforming 1 3 2 1 0 7
084 Music 3 1 0 0 3 7
144 Woodworking 2 0 3 2 0 7
148 Metal Treatment 1 1 1 1 3 7
221 Article Dispensing 2 2 0 1 2 7
241 Solid Material Comminution or Disintegration 0 4 1 2 0 7
318 Electricity: Motive Power Systems 1 2 2 1 1 7
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 1 0 2 2 2 7
353 Optics: Image Projectors 0 2 1 2 2 7
366 Agitating (e.g., of articles and materials) 0 1 2 1 3 7
368 Horology: Time Measuring Systems or Devices 0 2 1 4 0 7
372 Coherent Light Generators 1 1 2 2 1 7
374 Thermal Measuring and Testing 1 1 0 2 3 7
407 Cutters, for Shaping 1 3 0 2 1 7
416 Fluid Reaction Surfaces (i.e., Impellers) 1 1 2 0 3 7
433 Dentistry 1 2 3 1 0 7
475 Planetary Gear Transmission Systems or Components 3 3 0 1 0 7
042 Firearms 1 4 0 1 0 6
089 Ordnance 1 2 1 1 1 6
091 Motors: Expansible Chamber Type 1 1 3 1 0 6
105 Railway Rolling Stock 2 2 1 0 1 6
138 Pipes and Tubular Conduits 3 0 1 1 1 6
172 Earth Working 2 0 1 1 2 6
175 Boring or Penetrating the Earth 1 0 0 4 1 6
209 Classifying, Separating, and Assorting Solids 3 1 2 0 0 6
277 Seal for a Joint or Juncture 1 2 2 1 0 6
285 Pipe Joints or Couplings 1 3 1 0 1 6
303 Fluid-Pressure and Analogous Brake Systems 1 1 2 1 1 6
313 Electric Lamp and Discharge Devices 2 0 1 3 0 6
381 Electrical Audio Signal Processing Systems and Devices 1 0 2 1 2 6
396 Photography 1 1 1 1 2 6
450 Foundation Garments 0 0 1 1 4 6
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 0 2 1 1 2 6
601 Surgery: Kinesitherapy 1 1 0 0 4 6
019 Textiles: Fiber Preparation 1 1 2 1 0 5
051 Abrasive Tool Making Process, Material, or Composition 0 0 4 1 0 5
104 Railways 0 1 3 0 1 5
136 Batteries: Thermoelectric and Photoelectric 0 0 2 3 0 5
177 Weighing Scales 3 1 0 0 1 5
227 Elongated-Member-Driving Apparatus 3 0 1 1 0 5
271 Sheet Feeding or Delivering 1 0 2 2 0 5
283 Printed Matter 1 1 3 0 0 5
322 Electricity: Single Generator Systems 0 3 1 1 0 5
337 Electricity: Electrothermally or Thermally Actuated Switches 1 1 1 2 0 5
351 Optics: Eye Examining, Vision Testing and Correcting 3 1 1 0 0 5
360 Dynamic Magnetic Information Storage or Retrieval 0 1 3 1 0 5
373 Industrial Electric Heating Furnaces 3 0 2 0 0 5
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 1 3 1 5
452 Butchering 3 0 0 0 2 5
071 Chemistry: Fertilizers 1 2 0 0 1 4
102 Ammunition and Explosives 0 2 1 1 0 4
110 Furnaces 2 0 0 1 1 4
132 Toilet 2 1 1 0 0 4
184 Lubrication 1 2 0 1 0 4
193 Conveyors, Chutes, Skids, Guides, and Ways 1 2 1 0 0 4
226 Advancing Material of Indeterminate Length 2 1 1 0 0 4
232 Deposit and Collection Receptacles 0 0 1 1 2 4
236 Automatic Temperature and Humidity Regulation 0 2 2 0 0 4
293 Vehicle Fenders 0 2 0 0 2 4
301 Land Vehicles: Wheels and Axles 0 1 1 1 1 4
349 Liquid Crystal Cells, Elements and Systems 1 1 0 0 2 4
369 Dynamic Information Storage or Retrieval 3 0 0 1 0 4
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 2 1 0 1 4
463 Amusement Devices: Games 0 1 0 1 2 4
472 Amusement Devices 1 2 0 1 0 4
725 Interactive Video Distribution Systems 0 0 3 0 1 4
150 Purses, Wallets, and Protective Covers 0 1 1 0 1 3
152 Resilient Tires and Wheels 0 2 0 0 1 3
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 1 1 1 0 0 3
173 Tool Driving or Impacting 2 0 0 0 1 3
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 1 0 2 0 3
215 Bottles and Jars 1 1 0 0 1 3
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 0 1 2 3
249 Static Molds 0 2 0 0 1 3
281 Books, Strips, and Leaves 2 0 0 0 1 3
289 Knots and Knot Tying 1 0 1 1 0 3
332 Modulators 0 1 0 1 1 3
338 Electrical Resistors 0 2 1 0 0 3
358 Facsimile and Static Presentation Processing 1 0 1 1 0 3
392 Electric Resistance Heating Devices 0 1 1 1 0 3
399 Electrophotography 0 0 0 0 3 3
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 2 1 0 0 0 3
408 Cutting by Use of Rotating Axially Moving Tool 0 0 0 1 2 3
415 Rotary Kinetic Fluid Motors or Pumps 0 1 2 0 0 3
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 1 1 1 3
501 Compositions: Ceramic 1 1 0 0 1 3
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 2 0 0 1 0 3
007 Compound Hand Tools 0 0 0 1 1 2
014 Bridges 0 0 0 0 2 2
087 Textiles: Braiding, Netting, and Lace Making 0 1 1 0 0 2
100 Presses 0 0 1 0 1 2
111 Planting 0 1 0 0 1 2
169 Fire Extinguishers 1 0 1 0 0 2
216 Etching a Substrate: Processes 0 1 1 0 0 2
223 Apparel Apparatus 0 0 1 0 1 2
237 Heating Systems 0 0 1 1 0 2
256 Fences 0 1 0 1 0 2
261 Gas and Liquid Contact Apparatus 0 0 1 1 0 2
398 Optical Communications 0 0 1 1 0 2
420 Alloys or Metallic Compositions 1 0 0 0 1 2
432 Heating 0 0 1 1 0 2
440 Marine Propulsion 1 1 0 0 0 2
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 1 0 1 2
474 Endless Belt Power Transmission Systems or Components 1 0 0 1 0 2
477 Interrelated Power Delivery Controls, Including Engine Control 1 1 0 0 0 2
483 Tool Changing 0 0 1 0 1 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 1 1 0 0 2
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 0 0 1 0 2
001 ** Classification Undetermined ** 0 1 0 0 0 1
026 Textiles: Cloth Finishing 1 0 0 0 0 1
027 Undertaking 0 1 0 0 0 1
038 Textiles: Ironing or Smoothing 0 1 0 0 0 1
054 Harness (for animals) 0 0 1 0 0 1
063 Jewelry 0 0 1 0 0 1
076 Metal Tools and Implements, Making 0 0 1 0 0 1
086 Ammunition and Explosive-Charge Making 1 0 0 0 0 1
109 Safes, Bank Protection, or a Related Device 0 0 0 1 0 1
127 Sugar, Starch, and Carbohydrates 0 1 0 0 0 1
147 Coopering 0 1 0 0 0 1
178 Telegraphy 0 1 0 0 0 1
191 Electricity: Transmission To Vehicles 1 0 0 0 0 1
212 Traversing Hoists 1 0 0 0 0 1
217 Wooden Receptacles 0 0 1 0 0 1
238 Railways: Surface Track 0 0 1 0 0 1
290 Prime-Mover Dynamo Plants 0 0 0 1 0 1
298 Land Vehicles: Dumping 0 0 1 0 0 1
299 Mining or In Situ Disintegration of Hard Material 0 0 0 1 0 1
300 Brush, Broom, and Mop Making 0 0 0 0 1 1
355 Photocopying 0 0 0 0 1 1
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 0 1 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 1 0 0 1
406 Conveyors: Fluid Current 0 0 0 1 0 1
419 Powder Metallurgy Processes 0 0 0 0 1 1
431 Combustion 0 0 0 0 1 1
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 1 0 0 0 0 1
720 Dynamic Optical Information Storage or Retrieval 0 0 1 0 0 1
ALL ALL CLASSES 1845 1946 1822 1874 1794 9281


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Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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