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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 1998 - 2002 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

COLORADO

( 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 1998 1999 2000 2001 2002 Total
360 Dynamic Magnetic Information Storage or Retrieval 74 89 88 101 102 454
435 Chemistry: Molecular Biology and Microbiology 67 58 50 59 47 281
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 55 44 54 54 55 262
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 51 55 59 46 40 251
714 Error Detection/Correction and Fault Detection/Recovery 49 44 32 38 34 197
711 Memory (Electrical Computers and Digital Processing Systems) 24 26 30 47 57 184
379 Telephonic Communications 49 39 33 26 33 180
370 Multiplex Communications 33 33 38 36 32 172
128 Surgery (includes Class 600) 41 39 25 23 40 168
532 Organic Compounds (includes Classes 532-570) 35 28 36 30 38 167
365 Static Information Storage and Retrieval 19 36 34 43 29 161
710 Input/Output (Electrical Computers and Digital Processing Systems) 15 37 46 33 26 157
073 Measuring and Testing 30 27 32 34 32 155
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 31 20 26 36 40 153
438 Semiconductor Device Manufacturing: Process 13 19 29 42 30 133
707 DP: Database and File Management or Data Structures (Data Processing) 41 23 17 21 23 125
280 Land Vehicles 23 29 26 27 18 123
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 16 15 10 29 42 112
369 Dynamic Information Storage or Retrieval 20 16 23 29 22 110
324 Electricity: Measuring and Testing 11 18 20 22 38 109
250 Radiant Energy 16 17 17 34 22 106
606 Surgery (instruments) 18 14 19 31 20 102
439 Electrical Connectors 8 21 33 19 20 101
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 13 13 18 27 28 99
455 Telecommunications 13 19 18 24 24 98
340 Communications: Electrical 14 20 21 17 21 93
359 Optics: Systems (Including Communication) and Elements 13 18 21 21 17 90
702 DP: Measuring, Calibrating, or Testing (Data Processing) 10 11 14 22 29 86
052 Static Structures (e.g., Buildings) 20 14 12 15 21 82
375 Pulse or Digital Communications 19 16 18 12 14 79
361 Electricity: Electrical Systems and Devices 8 16 18 18 18 78
428 Stock Material or Miscellaneous Articles 8 18 20 14 16 76
604 Surgery (Medicators and Receptors) 20 13 13 12 17 75
210 Liquid Purification or Separation 19 19 14 12 10 74
382 Image Analysis 9 12 10 22 20 73
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 15 18 14 9 14 70
607 Surgery: Light, Thermal, and Electrical Application 18 3 13 17 16 67
358 Facsimile and Static Presentation Processing 8 9 14 14 21 66
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 6 6 5 19 30 66
356 Optics: Measuring and Testing 15 21 13 7 8 64
029 Metal Working 14 10 11 16 12 63
002 Apparel 10 17 12 9 12 60
242 Winding, Tensioning, or Guiding 12 10 7 11 12 52
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 3 10 10 15 13 51
427 Coating Processes 12 13 12 7 7 51
700 DP: Generic Control Systems or Specific Applications (Data Processing) 7 11 7 12 14 51
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 15 8 11 9 8 51
713 Support (Electrical Computers and Digital Processing Systems) 16 6 14 8 7 51
717 DP: Software Development, Installation, and Management (Data Processing) 9 12 8 11 11 51
326 Electronic Digital Logic Circuitry 5 11 11 7 16 50
348 Television 9 10 9 13 9 50
137 Fluid Handling 5 12 12 13 7 49
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 9 8 8 14 9 48
119 Animal Husbandry 8 9 7 8 14 46
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 9 12 9 7 9 46
341 Coded Data Generation or Conversion 7 2 6 17 13 45
385 Optical Waveguides 4 8 8 9 15 44
206 Special Receptacle or Package 5 11 9 10 8 43
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 9 10 11 4 8 42
248 Supports (e.g., for holding articles, etc.) 5 6 15 5 8 39
343 Communications: Radio Wave Antennas 7 8 8 10 5 38
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 13 7 6 6 6 38
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 17 3 3 5 10 38
239 Fluid Sprinkling, Spraying, and Diffusing 7 6 10 7 7 37
297 Chairs and Seats 7 11 11 1 7 37
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 14 12 3 4 4 37
362 Illumination 5 7 6 11 7 36
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 7 7 7 11 4 36
725 Interactive Video Distribution Systems 14 8 5 2 6 35
414 Material or Article Handling 6 6 9 7 6 34
072 Metal Deforming 12 8 7 3 2 32
349 Liquid Crystal Cells, Elements and Systems 2 10 13 5 2 32
436 Chemistry: Analytical and Immunological Testing 4 4 6 9 9 32
005 Beds 7 8 6 7 3 31
123 Internal-Combustion Engines 4 4 10 8 5 31
220 Receptacles 5 8 7 7 4 31
244 Aeronautics 5 7 6 5 8 31
473 Games Using Tangible Projectile 6 9 3 6 7 31
715 DP: Presentation Processing of Document (Data Processing) 4 6 7 8 6 31
174 Electricity: Conductors and Insulators 3 5 4 8 10 30
224 Package and Article Carriers 8 4 7 7 4 30
296 Land Vehicles: Bodies and Tops 4 6 4 11 5 30
372 Coherent Light Generators 10 7 5 5 3 30
381 Electrical Audio Signal Processing Systems and Devices 5 4 10 3 8 30
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 8 7 6 7 1 29
204 Chemistry: Electrical and Wave Energy 5 7 7 5 5 29
426 Food or Edible Material: Processes, Compositions, and Products 2 10 8 7 2 29
708 Arithmetic Processing and Calculating (Electrical Computers) 8 8 3 6 4 29
211 Supports: Racks 7 8 6 5 2 28
062 Refrigeration 4 6 1 10 6 27
482 Exercise Devices 6 6 6 4 5 27
273 Amusement Devices: Games 9 5 6 3 3 26
036 Boots, Shoes, and Leggings 5 7 2 6 5 25
160 Flexible or Portable Closure, Partition, or Panel 6 6 7 2 4 25
315 Electric Lamp and Discharge Devices: Systems 2 3 7 5 7 24
423 Chemistry of Inorganic Compounds 5 3 5 5 6 24
433 Dentistry 4 6 6 1 6 23
118 Coating Apparatus 3 2 6 4 7 22
024 Buckles, Buttons, Clasps, Etc. 3 4 6 5 3 21
222 Dispensing (apparatus and process) 3 4 6 7 1 21
323 Electricity: Power Supply or Regulation Systems 1 7 6 4 3 21
363 Electric Power Conversion Systems 3 6 4 5 3 21
070 Locks 5 4 6 1 4 20
219 Electric Heating 8 3 4 5 0 20
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 1 4 5 4 6 20
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 5 5 1 2 7 20
330 Amplifiers 2 2 4 7 5 20
405 Hydraulic and Earth Engineering 6 4 5 1 4 20
494 Imperforate Bowl: Centrifugal Separators 4 9 4 0 3 20
043 Fishing, Trapping, and Vermin Destroying 2 2 6 2 7 19
084 Music 3 6 2 6 2 19
294 Handling: Hand and Hoist-Line Implements 4 5 3 2 5 19
318 Electricity: Motive Power Systems 5 2 5 2 5 19
320 Electricity: Battery or Capacitor Charging or Discharging 3 1 1 7 7 19
434 Education and Demonstration 5 1 5 6 2 19
446 Amusement Devices: Toys 1 2 8 7 1 19
463 Amusement Devices: Games 4 5 3 7 0 19
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 2 3 3 2 9 19
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 3 4 3 4 5 19
015 Brushing, Scrubbing, and General Cleaning 1 5 8 0 4 18
033 Geometrical Instruments 2 3 4 4 5 18
106 Compositions: Coating or Plastic 10 2 0 3 3 18
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 4 2 3 7 2 18
030 Cutlery 3 2 6 4 2 17
095 Gas Separation: Processes 2 5 3 3 4 17
312 Supports: Cabinet Structure 1 3 7 2 4 17
347 Incremental Printing of Symbolic Information 1 2 3 6 5 17
060 Power Plants 3 2 3 3 5 16
081 Tools 3 4 3 2 4 16
165 Heat Exchange 6 1 2 2 5 16
188 Brakes 3 2 1 2 8 16
252 Compositions 2 2 6 3 3 16
307 Electrical Transmission or Interconnection Systems 5 2 4 2 3 16
331 Oscillators 2 4 4 4 2 16
417 Pumps 3 3 4 4 2 16
004 Baths, Closets, Sinks, and Spittoons 5 4 1 3 2 15
124 Mechanical Guns and Projectors 3 5 2 3 2 15
283 Printed Matter 6 3 3 3 0 15
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 3 5 4 0 3 15
016 Miscellaneous Hardware 3 2 6 1 2 14
108 Horizontally Supported Planar Surfaces 3 1 5 2 3 14
180 Motor Vehicles 0 2 4 3 5 14
198 Conveyors: Power-Driven 3 3 1 4 3 14
378 X-Ray or Gamma Ray Systems or Devices 0 2 4 5 3 14
040 Card, Picture, or Sign Exhibiting 0 4 4 2 3 13
055 Gas Separation 6 2 1 2 2 13
074 Machine Element or Mechanism 4 2 2 3 2 13
132 Toilet 3 3 4 0 3 13
134 Cleaning and Liquid Contact with Solids 2 2 2 4 3 13
229 Envelopes, Wrappers, and Paperboard Boxes 4 4 1 2 2 13
451 Abrading 0 7 1 4 1 13
136 Batteries: Thermoelectric and Photoelectric 1 3 1 7 0 12
182 Fire Escape, Ladder, or Scaffold 1 2 3 3 3 12
285 Pipe Joints or Couplings 3 2 2 4 1 12
333 Wave Transmission Lines and Networks 2 5 3 2 0 12
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 3 2 1 3 3 12
706 DP: Artificial Intelligence (Data Processing) 4 1 3 0 4 12
126 Stoves and Furnaces 1 3 3 3 1 11
135 Tent, Canopy, Umbrella, or Cane 2 2 2 3 2 11
138 Pipes and Tubular Conduits 4 3 2 1 1 11
241 Solid Material Comminution or Disintegration 0 2 3 2 4 11
310 Electrical Generator or Motor Structure 1 2 1 2 5 11
367 Communications, Electrical: Acoustic Wave Systems and Devices 3 1 6 0 1 11
368 Horology: Time Measuring Systems or Devices 2 4 0 1 4 11
601 Surgery: Kinesitherapy 1 1 3 3 3 11
034 Drying and Gas or Vapor Contact with Solids 1 3 4 1 1 10
083 Cutting 2 5 0 3 0 10
102 Ammunition and Explosives 1 0 2 2 5 10
114 Ships 1 2 1 1 5 10
175 Boring or Penetrating the Earth 1 1 2 2 4 10
299 Mining or In Situ Disintegration of Hard Material 4 0 2 0 4 10
401 Coating Implements with Material Supply 0 4 0 2 4 10
454 Ventilation 1 3 0 3 3 10
602 Surgery: Splint, Brace, or Bandage 3 2 0 4 1 10
065 Glass Manufacturing 2 2 2 2 1 9
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 4 2 0 0 3 9
125 Stone Working 0 2 3 2 2 9
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 1 4 1 1 2 9
178 Telegraphy 2 7 0 0 0 9
209 Classifying, Separating, and Assorting Solids 1 1 5 0 2 9
216 Etching a Substrate: Processes 2 2 3 0 2 9
249 Static Molds 1 3 2 3 0 9
380 Cryptography 2 2 2 2 1 9
408 Cutting by Use of Rotating Axially Moving Tool 5 2 0 2 0 9
472 Amusement Devices 2 4 0 1 2 9
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 1 4 2 2 0 9
585 Chemistry of Hydrocarbon Compounds 2 2 1 1 3 9
042 Firearms 2 2 1 1 2 8
099 Foods and Beverages: Apparatus 1 2 1 3 1 8
101 Printing 2 3 2 1 0 8
148 Metal Treatment 1 4 1 1 1 8
267 Spring Devices 2 1 2 1 2 8
277 Seal for a Joint or Juncture 3 1 2 1 1 8
290 Prime-Mover Dynamo Plants 0 0 1 3 4 8
313 Electric Lamp and Discharge Devices 3 0 2 3 0 8
366 Agitating (e.g., of articles and materials) 2 3 1 2 0 8
386 Television Signal Processing for Dynamic Recording or Reproducing 0 1 1 2 4 8
399 Electrophotography 4 0 2 0 2 8
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 2 2 3 0 1 8
501 Compositions: Ceramic 1 3 1 2 1 8
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 1 3 1 2 8
037 Excavating 2 0 0 1 4 7
112 Sewing 2 1 3 1 0 7
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 2 1 1 1 2 7
190 Trunks and Hand-Carried Luggage 4 1 0 1 1 7
269 Work Holders 3 3 1 0 0 7
292 Closure Fasteners 3 2 2 0 0 7
301 Land Vehicles: Wheels and Axles 3 3 1 0 0 7
400 Typewriting Machines 1 2 0 2 2 7
053 Package Making 1 3 1 1 0 6
089 Ordnance 0 2 0 3 1 6
096 Gas Separation: Apparatus 1 1 0 0 4 6
144 Woodworking 1 2 1 1 1 6
162 Paper Making and Fiber Liberation 2 1 0 2 1 6
192 Clutches and Power-Stop Control 0 1 2 2 1 6
228 Metal Fusion Bonding 1 0 2 3 0 6
251 Valves and Valve Actuation 3 0 1 0 2 6
322 Electricity: Single Generator Systems 1 3 2 0 0 6
353 Optics: Image Projectors 1 0 0 3 2 6
374 Thermal Measuring and Testing 1 1 3 0 1 6
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 2 0 2 0 2 6
383 Flexible Bags 1 2 2 1 0 6
403 Joints and Connections 0 2 1 1 2 6
406 Conveyors: Fluid Current 1 2 2 1 0 6
410 Freight Accommodation On Freight Carrier 2 1 1 2 0 6
452 Butchering 0 2 2 1 1 6
007 Compound Hand Tools 0 1 2 1 1 5
047 Plant Husbandry 1 3 0 0 1 5
049 Movable or Removable Closures 2 2 1 0 0 5
056 Harvesters 1 3 0 0 1 5
104 Railways 0 0 0 2 3 5
110 Furnaces 1 0 0 3 1 5
116 Signals and Indicators 1 2 2 0 0 5
149 Explosive and Thermic Compositions or Charges 2 0 1 0 2 5
169 Fire Extinguishers 1 1 1 1 1 5
208 Mineral Oils: Processes and Products 0 2 0 1 2 5
215 Bottles and Jars 3 1 1 0 0 5
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 1 1 1 1 5
281 Books, Strips, and Leaves 1 2 2 0 0 5
409 Gear Cutting, Milling, or Planing 1 1 2 0 1 5
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 3 1 0 0 1 5
415 Rotary Kinetic Fluid Motors or Pumps 2 0 0 3 0 5
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 2 0 2 0 5
505 Superconductor Technology: Apparatus, Material, Process 2 1 2 0 0 5
028 Textiles: Manufacturing 2 0 2 0 0 4
044 Fuel and Related Compositions 1 1 1 1 0 4
127 Sugar, Starch, and Carbohydrates 1 0 1 1 1 4
140 Wireworking 2 1 0 0 1 4
152 Resilient Tires and Wheels 2 0 1 0 1 4
181 Acoustics 2 0 1 1 0 4
200 Electricity: Circuit Makers and Breakers 0 0 1 0 3 4
256 Fences 0 0 2 0 2 4
261 Gas and Liquid Contact Apparatus 1 2 1 0 0 4
384 Bearings 0 0 1 3 0 4
396 Photography 0 0 1 1 2 4
404 Road Structure, Process, or Apparatus 0 1 0 1 2 4
431 Combustion 0 1 1 2 0 4
441 Buoys, Rafts, and Aquatic Devices 0 1 0 2 1 4
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 1 0 2 1 0 4
518 Chemistry: Fischer-Tropsch Processes; or Purification or Recovery of Products Thereof 0 0 1 2 1 4
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 0 1 0 1 1 3
054 Harness (for animals) 0 0 1 0 2 3
063 Jewelry 0 0 2 1 0 3
071 Chemistry: Fertilizers 1 0 0 0 2 3
109 Safes, Bank Protection, or a Related Device 1 2 0 0 0 3
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 1 1 1 3
131 Tobacco 0 1 0 0 2 3
164 Metal Founding 1 0 0 1 1 3
226 Advancing Material of Indeterminate Length 1 1 0 1 0 3
237 Heating Systems 0 0 1 2 0 3
238 Railways: Surface Track 0 1 2 0 0 3
271 Sheet Feeding or Delivering 0 1 1 0 1 3
289 Knots and Knot Tying 0 0 0 1 2 3
336 Inductor Devices 0 0 1 2 0 3
355 Photocopying 0 0 1 2 0 3
413 Sheet Metal Container Making 0 0 2 0 1 3
474 Endless Belt Power Transmission Systems or Components 1 2 0 0 0 3
475 Planetary Gear Transmission Systems or Components 1 1 0 1 0 3
504 Plant Protecting and Regulating Compositions 2 0 1 0 0 3
507 Earth Boring, Well Treating, and Oil Field Chemistry 2 0 1 0 0 3
588 Hazardous or Toxic Waste Destruction or Containment 1 0 0 1 1 3
023 Chemistry: Physical Processes 0 0 0 1 1 2
057 Textiles: Spinning, Twisting, and Twining 0 1 1 0 0 2
091 Motors: Expansible Chamber Type 1 0 0 0 1 2
092 Expansible Chamber Devices 1 0 0 0 1 2
100 Presses 1 1 0 0 0 2
111 Planting 0 0 0 1 1 2
150 Purses, Wallets, and Protective Covers 0 0 0 1 1 2
172 Earth Working 0 0 0 2 0 2
177 Weighing Scales 1 0 0 1 0 2
184 Lubrication 1 0 1 0 0 2
193 Conveyors, Chutes, Skids, Guides, and Ways 1 0 0 1 0 2
227 Elongated-Member-Driving Apparatus 0 0 1 0 1 2
392 Electric Resistance Heating Devices 1 0 0 1 0 2
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 1 0 1 0 0 2
416 Fluid Reaction Surfaces (i.e., Impellers) 0 0 1 0 1 2
420 Alloys or Metallic Compositions 1 0 0 1 0 2
432 Heating 0 0 1 0 1 2
492 Roll or Roller 0 0 1 0 1 2
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 1 0 1 0 2
001 ** Classification Undetermined ** 1 0 0 0 0 1
014 Bridges 0 0 0 0 1 1
019 Textiles: Fiber Preparation 1 0 0 0 0 1
027 Undertaking 0 0 1 0 0 1
051 Abrasive Tool Making Process, Material, or Composition 0 0 0 0 1 1
066 Textiles: Knitting 0 0 0 1 0 1
082 Turning (e.g., for metal working) 0 0 1 0 0 1
105 Railway Rolling Stock 0 0 1 0 0 1
122 Liquid Heaters and Vaporizers 0 0 1 0 0 1
173 Tool Driving or Impacting 0 0 1 0 0 1
185 Motors: Spring, Weight, or Animal Powered 0 0 1 0 0 1
194 Check-Actuated Control Mechanisms 0 0 1 0 0 1
213 Railway Draft Appliances 1 0 0 0 0 1
221 Article Dispensing 0 0 0 1 0 1
223 Apparel Apparatus 0 0 0 1 0 1
232 Deposit and Collection Receptacles 0 0 0 0 1 1
246 Railway Switches and Signals 0 0 1 0 0 1
260 Chemistry of Carbon Compounds 0 0 0 1 0 1
295 Railway Wheels and Axles 0 1 0 0 0 1
303 Fluid-Pressure and Analogous Brake Systems 0 0 1 0 0 1
329 Demodulators 1 0 0 0 0 1
332 Modulators 0 1 0 0 0 1
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 0 0 0 1 0 1
337 Electricity: Electrothermally or Thermally Actuated Switches 0 1 0 0 0 1
351 Optics: Eye Examining, Vision Testing and Correcting 0 0 1 0 0 1
388 Electricity: Motor Control Systems 0 1 0 0 0 1
412 Bookbinding: Process and Apparatus 1 0 0 0 0 1
419 Powder Metallurgy Processes 1 0 0 0 0 1
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 0 0 1 0 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 1 0 1
450 Foundation Garments 0 0 0 1 0 1
460 Crop Threshing or Separating 1 0 0 0 0 1
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 1 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 1
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 1 0 0 1
ALL ALL CLASSES 1750 1813 1848 1927 1939 9277


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