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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

MINNESOTA

( 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
428 Stock Material or Miscellaneous Articles 8 17 11 14 15 8 23 24 21 20 17 17 21 21 13 29 14 21 25 20 30 22 38 47 46 52 61 47 45 54 67 71 85 77 112 106 110 104 92 102 105 98 92 69 2091
607 Surgery: Light, Thermal, and Electrical Application 0 0 1 1 0 3 0 4 3 5 7 11 14 11 17 10 20 17 36 26 25 18 23 11 13 14 14 24 29 40 54 97 74 60 76 119 135 146 124 132 127 113 130 197 1981
128 Surgery (includes Class 600) 6 4 3 1 5 2 2 5 8 2 0 13 15 15 5 6 13 12 13 21 18 25 19 20 32 29 28 39 44 42 46 57 40 57 62 95 102 146 143 141 165 103 91 127 1822
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 18 11 23 27 22 36 42 29 31 46 33 32 22 25 25 17 13 11 37 16 19 32 27 34 30 33 35 29 39 54 53 71 55 81 63 75 91 56 63 81 79 67 44 50 1777
360 Dynamic Magnetic Information Storage or Retrieval 5 3 10 3 8 8 10 7 7 6 10 5 15 14 13 8 7 7 9 15 9 13 14 21 13 10 32 18 20 31 51 49 46 41 48 101 108 92 97 124 126 163 75 136 1608
604 Surgery (Medicators and Receptors) 1 3 1 1 1 1 1 1 2 4 1 5 4 3 5 3 2 6 9 6 9 9 17 13 25 25 18 15 35 48 46 75 76 84 66 95 81 77 76 59 101 70 45 49 1274
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 2 1 1 4 3 6 3 4 3 8 6 3 11 14 19 12 27 9 6 14 11 21 14 9 17 16 12 22 23 23 31 18 37 36 46 64 54 71 78 104 84 71 38 61 1117
073 Measuring and Testing 9 17 25 32 25 24 23 22 27 13 16 14 10 12 16 15 16 6 15 18 15 21 24 22 18 20 36 25 17 25 21 41 24 32 26 34 33 37 31 33 82 44 47 50 1113
532 Organic Compounds (includes Classes 532-570) 10 24 31 34 25 36 51 33 26 64 30 26 38 34 26 18 12 19 26 16 6 9 23 19 24 13 14 18 12 21 17 19 25 16 18 26 18 13 25 30 17 19 20 18 1019
426 Food or Edible Material: Processes, Compositions, and Products 11 12 18 17 15 22 38 36 28 34 24 29 23 16 11 11 16 18 13 5 15 11 20 9 11 12 24 21 31 22 28 18 27 29 21 25 46 45 40 36 47 33 19 23 1010
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 17 17 17 17 13 10 17 16 12 13 17 15 15 13 6 9 6 14 22 22 24 17 16 21 18 11 11 12 19 18 24 34 29 30 22 22 24 24 27 35 27 27 25 63 868
606 Surgery (instruments) 1 1 1 1 2 0 0 1 2 3 2 3 3 3 3 4 2 1 5 4 5 7 7 4 9 8 16 19 27 21 26 29 28 21 34 53 52 76 57 54 84 68 50 60 857
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 5 7 8 7 6 11 19 12 21 13 13 13 13 14 16 7 4 11 18 13 11 6 12 14 16 11 12 20 18 15 17 24 17 23 38 31 37 22 36 34 34 23 19 19 740
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 0 0 0 2 1 0 1 2 2 2 1 4 0 1 2 2 2 2 3 3 3 10 7 16 11 9 8 8 7 8 12 19 22 39 55 57 71 70 53 54 36 46 651
206 Special Receptacle or Package 13 8 14 19 21 9 11 4 4 10 13 8 17 11 10 9 12 14 9 11 13 4 13 2 20 18 24 16 18 14 21 14 19 15 18 22 28 21 24 15 17 17 35 10 645
052 Static Structures (e.g., Buildings) 10 5 12 11 20 10 12 9 7 10 6 6 5 11 16 16 8 12 15 3 7 12 7 12 13 3 17 23 11 19 18 12 13 22 27 26 23 23 22 11 23 23 24 21 616
137 Fluid Handling 18 6 22 12 22 10 34 21 20 12 15 15 15 13 12 10 6 13 8 6 5 10 12 6 19 8 10 14 10 7 17 22 10 11 13 12 12 21 29 16 12 15 13 12 606
340 Communications: Electrical 7 9 12 9 10 4 6 9 18 15 13 8 8 5 3 5 8 10 6 9 13 2 5 7 8 13 19 9 9 10 11 15 12 15 26 24 18 14 24 28 31 31 37 47 602
029 Metal Working 5 3 6 8 4 6 14 12 18 8 17 21 8 10 9 6 2 0 11 6 9 16 8 10 4 16 19 14 22 12 12 10 18 16 16 24 19 27 26 21 23 26 19 34 595
210 Liquid Purification or Separation 3 2 9 10 9 6 10 14 9 5 14 9 5 5 4 8 7 4 11 12 14 5 9 11 10 12 28 20 14 17 21 19 23 35 25 21 16 19 21 21 26 10 17 13 583
439 Electrical Connectors 3 7 9 9 5 4 7 8 15 7 9 9 9 7 13 10 10 5 6 6 11 14 18 15 21 7 11 15 10 2 11 12 12 4 14 13 25 22 18 26 32 32 38 40 581
427 Coating Processes 2 3 2 5 6 12 5 10 10 4 4 4 5 3 4 4 6 4 10 6 8 5 11 10 9 9 12 15 14 14 14 24 25 19 19 34 33 28 26 30 23 30 16 14 551
280 Land Vehicles 7 5 7 10 10 10 11 10 12 13 19 17 13 8 6 7 6 9 4 3 5 7 15 13 12 12 9 11 25 15 14 20 13 13 7 19 15 20 19 25 11 18 16 15 536
062 Refrigeration 8 3 7 13 7 8 8 8 9 8 9 10 9 5 8 7 3 10 12 13 13 13 17 8 17 19 18 25 16 24 18 15 14 15 12 14 12 14 14 19 24 12 6 9 533
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 4 2 1 2 3 2 0 1 4 1 2 3 8 3 9 6 2 6 4 5 6 9 3 3 3 6 2 6 4 8 12 12 27 33 28 46 47 31 47 48 56 505
359 Optics: Systems and Elements 0 1 2 2 5 4 2 12 7 9 10 8 9 6 11 15 1 5 6 6 10 6 8 6 10 11 8 14 12 16 9 2 5 11 9 27 27 27 24 27 32 25 24 33 504
324 Electricity: Measuring and Testing 2 3 6 4 5 8 14 8 8 5 7 5 8 4 6 4 3 5 5 6 2 2 7 9 12 6 11 13 9 11 13 7 15 12 11 19 24 19 22 36 47 27 24 29 503
015 Brushing, Scrubbing, and General Cleaning 9 2 12 5 9 11 13 8 13 8 10 18 9 15 7 5 6 16 8 12 16 14 11 12 18 14 8 8 8 10 11 9 11 10 9 14 35 18 12 9 9 7 8 13 490
222 Dispensing (apparatus and process) 15 14 15 30 17 12 8 9 16 12 4 9 14 9 9 2 11 6 6 4 10 4 8 7 12 8 8 16 10 15 16 12 8 18 7 13 26 12 10 11 9 10 8 2 482
361 Electricity: Electrical Systems and Devices 4 5 7 5 9 8 9 10 6 1 7 4 4 3 8 9 1 3 2 10 9 12 6 10 2 9 12 9 10 9 11 17 11 11 8 20 18 18 16 28 29 24 23 27 464
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 2 9 4 4 10 3 5 9 5 3 5 2 3 6 5 12 4 7 4 3 3 2 7 6 2 4 9 9 13 12 17 5 9 13 20 27 21 24 20 19 29 35 19 23 453
219 Electric Heating 4 4 4 4 1 0 7 6 7 10 11 10 4 3 6 7 8 12 9 7 5 11 20 12 19 10 22 20 12 17 15 18 9 4 13 13 18 15 12 13 13 14 13 8 450
414 Material or Article Handling 11 14 24 21 16 14 12 19 7 9 13 10 12 12 14 6 10 8 13 5 8 4 5 4 11 6 2 8 3 7 10 5 11 6 8 12 8 18 9 11 10 10 11 10 447
451 Abrading 5 10 5 3 6 4 3 8 5 13 2 8 12 7 2 3 3 10 8 6 5 7 11 8 11 9 10 10 6 9 8 13 6 8 17 14 14 25 18 18 25 29 20 19 443
435 Chemistry: Molecular Biology and Microbiology 0 0 1 1 1 1 5 3 1 2 1 1 4 2 1 1 1 4 9 4 1 2 4 3 14 4 14 11 7 11 11 8 23 17 29 30 33 27 26 28 33 20 17 26 442
248 Supports (e.g., for holding articles, etc.) 6 10 18 15 6 9 4 8 7 13 10 11 5 9 9 5 6 5 7 3 4 8 1 1 9 8 8 9 12 12 12 12 11 11 9 19 20 20 9 15 27 8 11 18 440
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 2 4 4 1 2 3 2 2 1 5 0 4 2 1 2 3 3 1 0 7 3 3 2 3 2 5 2 5 11 5 8 12 15 27 35 42 40 37 41 28 21 44 440
250 Radiant Energy 7 12 15 11 4 11 12 8 6 6 5 9 13 14 7 6 1 10 6 5 5 4 7 7 6 3 11 10 9 13 15 11 19 12 10 11 7 9 14 10 25 10 15 17 428
714 Error Detection/Correction and Fault Detection/Recovery 0 1 4 4 1 2 2 0 2 0 0 1 8 2 4 3 3 7 2 2 4 2 9 3 4 12 7 14 11 6 7 6 22 15 21 21 20 28 19 21 26 32 24 38 420
385 Optical Waveguides 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 4 4 1 2 0 0 3 0 0 1 9 8 10 16 9 14 20 14 10 9 18 18 15 19 34 43 46 47 39 415
239 Fluid Sprinkling, Spraying, and Diffusing 5 7 4 12 9 5 6 5 10 7 6 12 9 11 8 7 3 3 5 3 4 8 11 6 11 9 6 11 11 10 10 14 4 8 9 10 16 26 4 6 13 9 9 14 376
365 Static Information Storage and Retrieval 5 8 5 10 16 5 33 13 13 6 8 6 8 2 14 13 14 3 7 2 3 2 3 6 5 8 5 9 3 3 1 6 4 1 5 0 7 7 12 13 14 16 22 23 369
043 Fishing, Trapping, and Vermin Destroying 2 4 8 1 4 3 4 7 0 7 13 13 5 2 8 4 7 8 3 3 2 6 4 6 11 14 28 11 9 12 18 13 5 17 4 7 11 15 7 17 15 8 12 8 366
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 1 0 0 0 0 1 0 1 1 0 2 0 0 0 1 6 4 5 6 6 14 25 32 29 31 31 40 37 76 353
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 7 9 15 13 8 7 25 17 9 11 2 7 2 5 4 1 3 11 6 3 2 9 8 2 6 4 3 2 1 2 3 3 6 4 15 18 12 24 9 18 13 10 8 348
356 Optics: Measuring and Testing 1 2 2 2 2 5 3 3 4 1 7 1 4 5 0 2 1 3 3 0 4 3 6 6 8 6 8 5 9 13 5 13 24 12 6 18 11 14 9 13 25 22 14 31 336
242 Winding, Tensioning, or Guiding 11 6 13 11 17 8 5 7 10 12 5 11 7 5 4 6 8 6 6 8 3 5 10 7 7 12 3 3 10 5 3 18 8 13 5 6 4 6 8 8 6 6 3 2 327
417 Pumps 1 4 5 8 1 3 10 4 6 5 3 8 5 9 4 6 4 11 3 7 9 3 8 4 5 7 7 9 13 10 9 15 6 12 8 11 10 18 10 8 8 10 7 11 325
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 1 1 0 0 0 2 1 3 5 20 5 18 36 35 34 11 13 47 38 39 315
053 Package Making 3 4 6 4 4 7 9 9 8 4 6 8 5 8 4 7 6 3 3 3 2 5 8 3 5 4 3 1 8 4 11 14 15 7 14 29 14 18 8 8 5 4 7 6 314
180 Motor Vehicles 1 0 5 6 3 4 7 5 6 9 8 12 9 9 6 7 3 2 5 3 4 13 7 6 8 6 5 2 8 4 2 1 1 3 3 5 6 17 9 14 6 8 19 23 290
229 Envelopes, Wrappers, and Paperboard Boxes 13 14 11 18 14 11 3 4 2 5 6 6 8 8 7 3 8 12 15 12 2 11 6 4 7 8 8 2 1 6 6 5 2 3 2 2 4 5 3 3 2 0 1 2 275
220 Receptacles 7 5 3 3 4 15 3 3 6 5 5 7 7 6 2 6 4 6 4 1 8 6 7 7 4 7 7 11 5 16 5 9 5 8 9 12 7 7 4 6 7 6 5 1 271
055 Gas Separation 1 2 0 2 1 5 3 4 4 4 6 5 4 2 2 2 8 11 5 4 2 5 12 5 5 6 7 5 3 3 6 2 5 3 15 15 14 11 10 12 11 9 14 15 270
123 Internal-Combustion Engines 3 6 4 1 1 5 4 4 5 5 2 11 6 4 9 4 1 1 3 7 8 12 13 6 7 9 9 9 8 8 3 7 7 4 5 2 7 15 9 6 5 3 8 6 262
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 0 2 1 3 0 0 1 1 6 5 1 2 3 2 4 3 1 3 1 3 0 3 6 4 4 4 8 4 1 2 5 5 6 7 9 11 14 27 32 25 16 11 14 262
056 Harvesters 9 10 11 5 6 4 3 8 5 11 8 4 6 6 6 4 6 9 6 10 2 2 6 1 4 6 8 4 6 5 9 5 3 5 8 7 4 8 1 10 3 5 4 8 261
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 4 1 4 2 2 4 3 2 1 1 3 2 7 1 5 1 1 0 2 6 3 2 1 5 3 3 6 5 8 8 11 11 15 10 12 11 13 8 8 9 12 16 9 10 251
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 5 0 6 3 4 1 3 5 5 4 3 3 0 6 11 4 3 6 8 9 2 4 3 6 5 4 2 3 0 7 5 8 10 5 10 8 11 16 14 10 7 5 6 8 248
702 DP: Measuring, Calibrating, or Testing (Data Processing) 1 0 0 0 0 0 0 1 2 1 0 1 0 1 1 0 0 0 0 2 0 2 2 1 3 3 2 11 4 1 7 4 2 5 9 10 11 8 9 20 35 29 30 27 245
119 Animal Husbandry 5 9 8 9 4 3 7 3 1 5 6 4 5 1 3 2 1 5 8 2 6 5 5 3 3 7 10 5 5 7 10 5 1 3 4 10 9 6 5 11 5 7 9 7 239
362 Illumination 0 5 0 2 5 2 3 1 1 3 3 5 2 3 2 2 2 6 3 3 3 5 1 1 4 7 8 5 12 4 3 2 4 6 9 5 3 10 13 14 16 12 18 21 239
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 1 0 1 0 0 0 0 1 0 0 1 4 4 2 3 2 2 0 0 1 4 6 6 4 8 13 5 7 7 6 6 8 2 8 12 11 8 13 20 19 20 21 236
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 5 9 3 8 8 7 9 9 5 5 6 7 1 3 5 0 4 4 1 2 5 4 3 2 1 0 7 4 5 7 7 2 4 5 11 4 6 13 7 4 12 9 12 236
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 2 0 3 2 1 2 4 3 1 2 3 4 7 5 8 6 4 9 14 10 16 13 10 9 13 21 28 13 20 236
602 Surgery: Splint, Brace, or Bandage 0 0 0 3 0 0 1 0 1 1 1 2 3 1 0 0 2 2 2 0 6 1 5 3 4 6 5 8 9 4 7 4 9 10 5 9 13 17 20 15 19 6 16 12 232
174 Electricity: Conductors and Insulators 1 1 7 2 3 3 2 5 8 3 4 6 7 1 4 1 3 1 3 2 2 5 7 4 3 2 8 4 7 7 3 3 6 5 4 8 6 5 11 10 14 12 11 16 230
051 Abrasive Tool Making Process, Material, or Composition 2 0 0 3 0 0 0 4 2 0 0 0 1 0 2 3 0 4 0 2 0 3 3 2 2 6 9 4 6 9 15 10 13 24 17 13 14 7 14 7 13 8 5 1 228
318 Electricity: Motive Power Systems 3 3 4 6 4 3 10 4 4 5 3 10 1 3 6 4 2 4 6 4 5 3 2 2 8 1 3 4 8 5 8 6 8 6 4 7 4 11 6 5 6 4 13 9 227
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 2 1 2 6 12 10 12 4 15 22 22 25 20 17 15 21 17 226
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 5 2 1 2 5 2 4 8 10 19 18 22 18 19 32 24 27 222
002 Apparel 1 2 3 1 6 2 3 2 2 2 6 3 5 3 1 3 1 3 2 1 1 1 4 4 6 6 9 7 4 4 4 10 9 15 6 15 10 9 14 11 4 5 6 4 220
198 Conveyors: Power-Driven 11 5 7 7 9 2 2 5 6 5 5 4 2 5 4 3 1 3 2 7 3 3 4 1 3 4 5 5 7 9 6 7 4 7 2 4 7 5 9 6 5 4 5 10 220
370 Multiplex Communications 0 0 0 0 0 0 1 1 1 1 2 1 0 2 2 1 0 3 0 2 1 1 2 4 5 4 1 2 2 1 0 5 6 14 12 19 11 12 14 13 16 13 12 33 220
074 Machine Element or Mechanism 5 6 6 22 11 14 12 11 6 2 5 3 6 5 8 5 2 3 3 3 0 5 3 2 2 3 2 7 2 3 12 3 1 3 1 2 8 7 3 4 5 0 1 2 219
126 Stoves and Furnaces 2 4 7 0 2 3 2 2 7 1 1 10 3 3 6 19 4 12 8 8 9 8 6 2 9 4 5 2 6 2 4 2 4 3 4 3 13 5 5 4 5 6 3 1 219
114 Ships 7 7 4 7 0 7 5 6 3 7 5 4 1 5 2 2 0 0 1 1 3 2 1 2 8 7 8 7 6 2 3 4 3 5 5 10 9 8 5 4 3 9 16 14 218
083 Cutting 5 4 10 4 6 7 6 9 9 3 9 3 4 6 6 8 8 3 11 4 3 3 2 3 2 0 5 3 11