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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

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

Count of 1963 - 2006 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 DAKOTA

( 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 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Total
172 Earth Working 2 4 1 2 4 0 5 5 5 4 4 2 3 2 3 6 2 2 4 1 3 1 5 2 1 1 1 2 1 1 1 1 3 3 2 2 2 3 3 4 1 2 2 3 111
414 Material or Article Handling 3 2 0 0 0 4 5 4 1 3 1 3 7 0 2 5 1 1 1 3 0 2 0 3 1 2 3 2 5 5 0 2 2 6 2 1 1 1 3 4 0 4 3 2 100
180 Motor Vehicles 0 0 1 1 1 0 0 0 0 1 1 1 3 1 3 7 2 1 0 1 5 0 1 1 0 1 3 5 0 0 1 0 1 2 1 1 4 1 8 3 2 2 10 1 77
280 Land Vehicles 0 0 1 1 1 0 0 1 1 1 1 0 1 1 2 2 0 0 3 0 1 2 1 4 1 2 7 1 2 0 3 1 3 0 0 3 2 3 6 2 2 1 2 2 67
056 Harvesters 0 3 1 2 2 2 0 2 1 0 5 1 2 1 0 1 1 0 3 3 0 3 1 2 3 0 2 1 1 1 1 1 1 2 1 1 2 1 2 1 0 0 1 0 58
296 Land Vehicles: Bodies and Tops 0 0 0 0 1 2 2 2 1 0 1 1 1 2 0 0 0 1 1 0 0 0 2 2 3 1 5 1 2 1 0 0 1 1 0 1 2 2 1 3 3 2 3 5 56
111 Planting 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 2 0 0 1 0 1 2 1 3 2 0 1 0 3 0 2 0 0 0 0 0 2 6 2 2 1 1 2 2 40
043 Fishing, Trapping, and Vermin Destroying 0 0 0 3 2 2 2 0 1 0 2 1 1 2 2 0 0 0 0 0 0 0 0 2 1 3 1 0 2 0 1 0 2 1 2 0 1 1 0 0 0 0 0 2 37
037 Excavating 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 3 1 1 0 1 0 0 1 3 4 4 3 2 2 0 2 32
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 3 6 1 0 3 2 0 0 4 2 30
248 Supports (e.g., for holding articles, etc.) 1 0 0 1 0 1 2 0 1 1 1 1 2 0 0 1 0 2 0 0 1 0 0 0 1 0 0 1 0 0 1 2 1 0 0 1 0 1 3 0 0 0 0 0 26
242 Winding, Tensioning, or Guiding 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 1 1 1 5 2 25
426 Food or Edible Material: Processes, Compositions, and Products 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 2 2 1 2 2 1 1 3 0 2 1 2 0 1 0 0 25
198 Conveyors: Power-Driven 1 0 2 2 1 1 0 0 0 1 0 0 0 0 0 0 0 2 0 0 2 0 2 0 0 1 0 0 1 1 0 0 1 0 0 0 0 1 1 1 2 0 1 0 24
239 Fluid Sprinkling, Spraying, and Diffusing 1 0 2 0 1 0 0 0 0 1 0 2 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 2 0 0 0 2 0 1 2 2 1 0 2 1 0 24
241 Solid Material Comminution or Disintegration 1 0 0 0 0 0 1 1 1 0 0 0 0 1 1 0 1 1 0 0 0 1 0 0 0 1 1 0 1 1 1 2 0 3 0 0 1 0 1 0 2 0 0 0 23
340 Communications: Electrical 1 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 2 1 5 3 0 0 1 1 0 1 2 23
074 Machine Element or Mechanism 0 0 1 0 0 0 0 0 1 0 0 1 0 2 0 1 0 0 0 0 0 0 1 2 0 0 0 0 1 1 0 0 1 1 1 3 1 1 0 2 1 0 0 0 22
029 Metal Working 0 2 0 1 0 1 1 0 0 0 1 0 0 1 2 1 1 0 1 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 1 0 0 0 1 0 1 0 21
219 Electric Heating 0 1 0 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 3 2 1 1 0 0 0 0 1 1 2 0 0 0 1 3 21
052 Static Structures (e.g., Buildings) 0 0 1 0 1 2 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 1 0 0 0 1 0 0 1 0 1 0 1 0 0 1 3 0 1 1 2 0 20
222 Dispensing (apparatus and process) 1 3 0 2 0 0 1 1 1 0 1 1 0 1 2 1 1 0 0 0 0 1 0 0 1 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 20
015 Brushing, Scrubbing, and General Cleaning 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 2 1 0 0 1 0 2 1 0 0 3 1 1 0 1 0 0 0 19
119 Animal Husbandry 1 1 0 1 0 0 0 0 0 0 1 1 1 0 0 0 1 0 1 1 0 0 0 0 1 0 1 1 0 0 1 2 1 0 2 0 1 0 0 0 0 0 0 0 19
254 Implements or Apparatus for Applying Pushing or Pulling Force 0 1 0 1 1 0 0 0 2 0 0 0 1 0 2 0 1 0 0 0 0 0 0 0 0 2 0 0 0 0 2 0 0 0 0 1 2 0 0 1 0 0 1 1 19
473 Games Using Tangible Projectile 0 0 0 1 0 0 1 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 1 0 0 3 0 2 1 2 0 1 0 0 1 0 19
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 1 3 0 2 1 0 0 1 2 1 2 1 0 0 1 19
073 Measuring and Testing 0 1 0 0 0 0 1 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 1 0 1 0 1 1 1 0 0 3 1 0 0 0 0 1 0 0 2 0 1 0 18
081 Tools 1 1 1 0 0 2 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 1 0 0 0 0 1 1 1 1 0 1 0 0 1 0 1 1 0 0 0 0 18
209 Classifying, Separating, and Assorting Solids 1 0 0 4 2 3 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 1 0 18
532 Organic Compounds (includes Classes 532-570) 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 1 1 2 2 3 2 2 0 0 0 0 0 18
126 Stoves and Furnaces 1 1 0 0 2 1 2 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 2 0 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 1 0 17
210 Liquid Purification or Separation 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 1 0 1 1 1 1 1 0 0 1 0 0 1 1 0 2 0 0 2 0 16
305 Wheel Substitutes for Land Vehicles 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 4 1 2 1 1 0 0 0 16
033 Geometrical Instruments 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 0 0 0 2 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 2 2 0 15
114 Ships 0 0 1 0 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 1 0 1 0 1 2 1 0 1 2 0 0 1 0 0 0 0 0 0 0 0 15
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 2 0 1 1 1 1 0 1 1 0 1 1 0 2 0 1 15
004 Baths, Closets, Sinks, and Spittoons 2 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 0 0 1 2 1 0 1 0 1 14
123 Internal-Combustion Engines 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 1 1 1 1 0 1 1 0 1 0 0 0 0 0 1 0 0 0 0 2 1 0 0 0 0 0 14
137 Fluid Handling 0 0 0 0 0 1 1 0 1 1 1 1 0 0 1 1 0 1 0 1 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 14
171 Unearthing Plants or Buried Objects 2 0 0 0 0 0 0 0 1 0 1 0 0 0 4 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 1 0 0 0 0 1 14
482 Exercise Devices 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 1 1 0 2 2 0 1 0 0 0 1 1 0 0 0 14
030 Cutlery 0 0 1 0 1 1 0 0 0 0 1 0 0 1 0 0 0 2 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2 0 1 0 0 0 0 1 0 0 0 13
060 Power Plants 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 1 1 0 0 0 1 0 0 0 1 0 1 2 1 0 0 13
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 3 4 2 0 0 0 13
002 Apparel 0 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 1 0 1 1 1 1 0 1 12
040 Card, Picture, or Sign Exhibiting 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 12
182 Fire Escape, Ladder, or Scaffold 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 2 1 1 1 0 0 1 12
273 Amusement Devices: Games 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1 0 0 1 0 0 0 12
460 Crop Threshing or Separating 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 1 0 1 1 0 0 0 1 1 0 0 1 0 1 1 0 0 1 0 0 12
224 Package and Article Carriers 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 1 3 0 0 0 0 1 0 0 0 11
251 Valves and Valve Actuation 0 0 1 1 2 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 11
403 Joints and Connections 0 0 0 0 1 0 1 0 0 0 0 2 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 2 1 0 0 0 0 0 0 11
091 Motors: Expansible Chamber Type 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 10
099 Foods and Beverages: Apparatus 0 1 1 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 0 10
206 Special Receptacle or Package 1 1 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 10
244 Aeronautics and Astronautics 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 2 0 1 0 0 0 0 0 0 0 0 0 0 1 0 10
277 Seal for a Joint or Juncture 0 1 0 0 0 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 1 1 1 0 0 10
294 Handling: Hand and Hoist-Line Implements 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 0 1 0 0 1 0 2 0 0 0 0 10
298 Land Vehicles: Dumping 0 1 1 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 1 0 1 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 10
324 Electricity: Measuring and Testing 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 2 10
366 Agitating (e.g., of articles and materials) 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 2 0 0 0 0 2 0 0 1 0 0 0 1 0 0 10
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 2 0 2 0 2 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
435 Chemistry: Molecular Biology and Microbiology 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 1 1 1 10
451 Abrading 1 0 1 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0 0 0 0 0 1 0 0 0 0 10
005 Beds 0 1 0 0 0 0 1 0 1 1 0 1 0 0 1 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
049 Movable or Removable Closures 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 1 0 0 0 9
083 Cutting 0 1 0 0 0 0 1 0 1 0 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 0 9
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 0 1 1 1 0 0 0 0 9
157 Wheelwright Machines 1 0 0 0 0 0 0 1 0 2 1 0 2 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
220 Receptacles 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 9
404 Road Structure, Process, or Apparatus 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 1 0 9
417 Pumps 0 0 0 0 0 1 1 0 0 0 0 1 0 0 1 0 1 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 9
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 9
092 Expansible Chamber Devices 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 1 0 2 8
134 Cleaning and Liquid Contact with Solids 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 8
202 Distillation: Apparatus 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 8
211 Supports: Racks 0 1 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 0 0 8
250 Radiant Energy 0 0 0 0