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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

MAINE

( 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 0 2 1 1 2 3 3 1 1 2 0 0 3 3 1 2 0 2 7 2 1 5 0 2 3 6 3 2 2 3 3 4 1 4 4 3 5 4 3 5 4 5 5 1 114
435 Chemistry: Molecular Biology and Microbiology 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 3 1 2 0 1 1 1 2 4 0 4 3 1 4 2 7 2 8 10 5 5 2 9 8 6 8 6 108
052 Static Structures (e.g., Buildings) 0 1 0 1 2 1 5 1 3 1 0 2 2 3 3 4 0 2 1 0 3 6 7 2 6 3 3 5 5 2 4 5 0 1 1 2 1 2 2 3 2 1 0 2 100
206 Special Receptacle or Package 0 0 4 3 0 3 2 2 4 0 1 0 2 1 0 2 0 0 0 1 3 3 2 1 3 4 2 0 2 4 2 3 1 3 2 5 2 1 3 2 0 1 3 5 82
326 Electronic Digital Logic Circuitry 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 1 5 1 0 7 12 9 10 4 4 0 0 0 0 2 4 0 2 1 3 1 71
073 Measuring and Testing 1 1 2 0 2 2 1 4 2 1 2 2 1 1 2 1 1 1 1 1 0 0 0 1 1 2 1 0 2 2 4 2 0 3 1 4 3 2 0 2 2 1 3 2 67
361 Electricity: Electrical Systems and Devices 1 1 0 0 0 0 0 0 2 0 1 1 0 0 1 3 1 1 0 1 1 0 2 5 0 2 2 4 3 2 0 1 1 4 2 1 0 0 3 3 3 2 3 3 60
242 Winding, Tensioning, or Guiding 0 0 0 0 0 1 1 0 0 1 1 2 0 1 1 2 1 0 2 0 0 2 4 3 3 5 0 1 5 4 5 2 4 2 1 1 0 1 0 0 1 0 0 0 57
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 1 0 1 0 1 1 0 2 0 0 0 0 0 0 0 1 1 1 1 0 1 0 1 0 2 2 5 3 1 2 2 0 3 4 1 1 2 1 4 0 2 2 5 0 54
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 0 1 4 1 0 1 1 4 5 2 1 0 0 2 2 1 2 0 1 3 0 1 0 1 0 1 1 0 0 1 0 2 0 1 0 2 3 4 3 0 0 2 53
210 Liquid Purification or Separation 0 0 0 0 0 2 1 1 0 1 3 2 3 2 0 1 0 0 0 0 0 2 0 1 2 0 2 0 1 2 2 3 3 2 2 2 1 2 5 0 1 0 0 3 52
029 Metal Working 0 0 0 0 2 0 0 1 1 1 0 1 2 0 0 2 3 1 0 0 1 4 0 1 2 0 3 0 0 2 1 1 1 1 0 1 0 1 2 3 0 3 0 2 43
114 Ships 2 1 2 1 2 0 0 0 2 0 3 2 1 0 0 1 0 0 1 0 2 1 0 0 0 0 1 0 0 0 0 0 0 1 3 2 0 1 2 2 3 2 3 2 43
119 Animal Husbandry 2 1 1 0 1 0 0 1 1 2 0 1 3 1 0 0 0 0 0 2 0 1 0 0 0 0 1 0 0 1 1 1 1 1 1 1 0 2 2 4 4 1 1 4 43
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 3 1 0 0 0 3 0 2 1 1 1 0 0 2 1 1 1 2 3 6 1 3 6 1 2 0 2 43
439 Electrical Connectors 1 0 1 0 0 0 0 0 2 0 1 1 0 0 0 2 0 0 2 1 3 4 1 1 0 1 1 1 0 3 2 2 1 0 0 1 1 1 0 1 0 2 2 2 41
101 Printing 2 2 3 3 1 1 1 0 1 1 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 0 1 0 3 0 0 0 5 1 0 4 2 2 1 0 40
414 Material or Article Handling 2 0 4 2 1 0 1 4 1 2 1 0 0 0 1 0 0 0 3 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 1 0 3 3 0 0 3 0 2 2 39
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 3 0 1 2 8 2 0 4 2 1 1 1 3 2 0 3 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 39
036 Boots, Shoes, and Leggings 0 3 0 2 0 1 0 0 0 1 1 0 0 0 1 0 1 0 1 0 0 1 2 3 2 0 0 0 0 0 1 1 0 2 0 0 1 1 1 0 2 4 4 2 38
137 Fluid Handling 0 0 0 0 0 2 0 0 2 1 2 0 0 1 1 1 2 1 0 1 1 0 1 0 2 0 3 2 0 3 2 2 0 0 0 1 2 2 0 1 0 0 0 2 38
083 Cutting 0 3 4 3 0 0 3 2 2 2 0 1 0 0 2 0 0 0 1 0 0 1 3 0 1 0 1 0 1 3 1 2 0 0 0 0 0 0 0 1 0 0 0 0 37
128 Surgery (includes Class 600) 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 1 0 2 1 1 0 0 1 1 0 0 2 1 0 0 2 2 0 1 0 0 0 5 5 6 1 1 1 37
427 Coating Processes 1 2 0 2 8 0 3 0 0 1 0 1 1 0 1 0 0 0 0 3 1 0 1 0 0 1 0 0 0 0 1 0 0 1 1 0 0 1 3 2 1 1 0 0 37
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 1 0 1 2 2 0 0 3 5 3 3 3 4 3 36
340 Communications: Electrical 0 0 0 2 0 0 0 0 0 3 1 2 0 1 2 0 0 0 2 0 1 2 0 0 1 1 0 2 0 1 0 1 2 1 3 0 4 2 2 0 0 0 0 0 36
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 1 0 0 1 2 2 1 0 0 2 2 1 0 0 0 0 1 0 1 1 1 1 4 4 0 1 0 1 2 0 2 1 0 0 0 0 1 0 0 0 2 0 0 1 36
043 Fishing, Trapping, and Vermin Destroying 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 1 1 0 0 0 0 1 1 2 0 1 1 2 1 1 2 1 0 0 1 2 4 2 0 1 2 1 3 0 35
219 Electric Heating 0 1 0 0 1 0 0 1 0 0 1 2 3 0 0 1 2 1 0 0 2 5 0 1 1 3 3 0 0 0 0 0 0 0 1 1 2 0 2 0 0 0 0 1 35
324 Electricity: Measuring and Testing 0 2 2 3 1 1 0 1 0 1 0 3 0 0 0 1 0 0 2 0 0 1 1 1 0 0 0 1 1 1 1 2 0 1 0 0 3 0 1 2 1 0 0 1 35
343 Communications: Radio Wave Antennas 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 1 1 2 0 0 1 3 4 3 1 6 6 6 35
248 Supports (e.g., for holding articles, etc.) 1 1 0 1 1 0 1 1 0 0 0 2 0 0 0 1 0 0 0 0 0 2 1 1 1 1 0 1 0 1 2 0 1 0 1 2 1 2 2 4 1 1 0 0 34
162 Paper Making and Fiber Liberation 2 2 1 0 2 1 0 1 5 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 2 0 0 1 2 3 1 0 0 1 0 0 1 0 0 0 0 1 0 33
280 Land Vehicles 0 1 0 0 0 0 0 1 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 2 1 1 0 0 2 2 0 1 2 1 1 2 1 1 0 1 2 2 3 2 33
436 Chemistry: Analytical and Immunological Testing 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 0 2 0 0 0 0 0 0 0 0 1 1 0 2 0 3 1 3 2 3 2 4 1 2 1 33
033 Geometrical Instruments 1 2 0 0 0 2 3 0 2 0 0 0 0 0 0 0 2 1 2 0 0 0 0 0 1 0 1 2 1 0 0 1 2 1 0 1 1 0 1 2 1 0 1 1 32
126 Stoves and Furnaces 0 2 0 0 1 0 0 0 0 1 0 1 0 0 1 1 1 0 3 3 3 2 2 0 0 1 1 2 0 0 2 2 0 0 0 0 0 0 0 0 1 0 0 0 30
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 3 1 2 1 1 1 3 1 1 2 4 1 1 1 0 1 1 30
473 Games Using Tangible Projectile 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 1 3 0 0 0 0 1 2 1 3 1 2 1 1 1 4 1 2 28
532 Organic Compounds (includes Classes 532-570) 1 0 1 1 1 0 0 2 0 1 1 1 0 1 0 1 0 0 1 0 1 0 0 0 0 0 0 1 1 1 1 0 1 0 1 0 0 0 0 1 3 3 0 2 28
333 Wave Transmission Lines and Networks 0 0 0 0 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 4 4 7 0 27
451 Abrading 1 0 1 2 0 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 1 0 1 1 1 3 4 3 2 1 0 27
024 Buckles, Buttons, Clasps, Etc. 0 1 0 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 2 4 1 2 1 1 2 1 1 3 26
426 Food or Edible Material: Processes, Compositions, and Products 0 2 0 0 1 2 2 0 0 1 1 1 0 0 0 0 0 0 0 0 0 2 1 0 1 0 1 0 0 0 1 1 1 2 1 1 1 1 1 0 0 1 0 0 26
273 Amusement Devices: Games 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 0 0 2 1 0 0 0 0 3 2 2 0 0 1 0 2 1 0 0 1 2 1 1 1 1 0 0 24
379 Telephonic Communications 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 3 1 0 1 1 3 5 3 1 0 0 0 1 1 0 0 1 0 24
034 Drying and Gas or Vapor Contact with Solids 0 1 0 0 1 0 0 0 1 1 1 2 2 0 0 1 0 1 1 0 0 0 1 0 1 0 0 0 1 2 0 1 0 0 0 0 0 0 1 0 0 1 1 2 23
405 Hydraulic and Earth Engineering 1 0 1 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 1 0 1 1 1 1 3 3 0 1 1 0 0 0 1 1 1 0 1 1 0 23
438 Semiconductor Device Manufacturing: Process 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 1 0 0 0 1 3 1 0 0 0 1 2 3 3 2 2 0 3 23
482 Exercise Devices 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 1 0 2 0 0 0 1 0 1 0 0 3 0 0 2 0 2 3 0 2 1 1 1 23
060 Power Plants 0 0 0 0 0 2 0 1 2 0 0 0 1 0 0 0 0 0 0 0 2 3 0 0 0 0 1 0 0 0 0 0 1 0 1 3 1 1 0 0 1 0 1 1 22
012 Boot and Shoe Making 1 1 1 1 2 3 1 1 1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 2 2 0 0 1 0 0 0 0 0 0 0 21
005 Beds 0 0 1 0 1 1 0 0 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 1 0 0 0 0 0 0 0 1 1 0 2 1 0 0 0 0 1 0 2 1 20
015 Brushing, Scrubbing, and General Cleaning 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 0 0 1 0 0 2 0 3 0 1 0 0 1 3 0 0 0 0 0 1 1 0 0 0 20
042 Firearms 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 3 1 2 1 0 2 2 0 2 2 0 1 0 0 2 0 0 0 20
310 Electrical Generator or Motor Structure 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 0 2 1 0 1 2 0 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 2 1 0 0 0 3 20
074 Machine Element or Mechanism 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 1 0 2 1 1 1 1 1 0 1 1 0 0 1 1 0 19
123 Internal-Combustion Engines 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 2 1 1 0 0 0 0 0 0 1 1 1 1 1 0 0 1 1 0 0 1 1 19
222 Dispensing (apparatus and process) 1 0 0 0 1 0 1 0 2 2 1 1 0 0 2 1 0 2 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 19
229 Envelopes, Wrappers, and Paperboard Boxes 0 1 0 1 1 1 0 0 0 1 1 1 3 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 2 0 0 0 19
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 1 2 0 1 0 1 1 0 0 0 1 0 0 0 0 0 1 0 0 5 1 19
294 Handling: Hand and Hoist-Line Implements 1 1 0 0 1 0 0 1 0 2 0 0 0 0 0 2 1 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 2 2 0 1 0 0 0 0 19
002 Apparel 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0 1 0 1 1 1 0 1 0 0 3 1 0 1 0 2 18
198 Conveyors: Power-Driven 1 1 0 0 1 1 0 3 1 0 1 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 2 0 1 0 0 18
239 Fluid Sprinkling, Spraying, and Diffusing 0 0 1 0 0 1 1 1 1 1 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 0 1 0 0 0 1 1 0 1 18
331 Oscillators 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 0 3 1 0 0 0 1 0 2 1 1 2 3 3 18
356 Optics: Measuring and Testing 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 0 2 0 1 0 0 1 3 0 3 18
381 Electrical Audio Signal Processing Systems and Devices 0 1 2 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 0 0 1 0 1 1 0 2 0 1 1 1 1 0 0 0 18
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 0 1 0 0 0 0 0 0 2 1 0 0 1 0 1 0 0 1 0 0 0 0 0 1 2 1 2 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 2 18
604 Surgery (Medicators and Receptors) 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 1 0 0 1 2 1 0 0 2 0 1 0 1 1 1 1 0 0 1 0 1 0 18
030 Cutlery 0 0 1 1 1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 2 2 1 0 0 0 2 0 0 0 0 1 0 17
037 Excavating 0 0 0 0 0 0 0 0 1 0 0 0 1 0 2 0 0 1 1 0 0 2 0 0 1 1 0 1 1 0 0 1 0 1 0 0 0 0 1 0 1 0 1 0 17
220 Receptacles 1 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 2 0 1 0 0 0 0 1 1 0 1 0 1 0 1 2 1 0 0 1 0 0 0 1 0 0 0 0 17
297 Chairs and Seats 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 2 1 0 0 0 1 0 0 2 0 0 0 1 0 1 0 1 0 1 0 3 0 2 0 0 1 0 17
110 Furnaces 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 2 1 1 2 1 0 1 0 2 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 16
224 Package and Article Carriers 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 2 1 0 1 1 2 0 0 0 1 0 1 3 1 0 1 1 0 16
337 Electricity: Electrothermally or Thermally Actuated Switches 0 0 0 1 0 1 0 0 0 0 1 0 0 0 0 2 0 0 0 1 0 0 1 0 3 0 1 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
362 Illumination 0 0 2 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 2 1 0 1 0 0 1 1 0 1 0 0 0 0 1 1 2 0 0 16
452 Butchering