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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

CONNECTICUT

( 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
532 Organic Compounds (includes Classes 532-570) 65 76 87 91 112 102 98 96 87 125 91 92 120 119 91 84 66 59 64 64 53 60 48 59 40 55 59 56 51 47 64 52 62 37 58 61 62 66 68 70 61 53 47 59 3137
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 4 7 8 16 13 8 11 10 19 24 15 19 35 35 33 38 29 35 45 33 25 38 50 47 42 47 69 58 81 79 82 90 92 91 151 149 157 166 211 228 180 144 171 165 3050
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 26 28 48 57 60 52 48 48 38 63 59 56 69 63 69 76 29 43 38 34 43 52 70 40 39 48 34 42 39 54 50 65 31 30 44 33 44 45 63 39 50 40 28 31 2058
428 Stock Material or Miscellaneous Articles 7 12 23 28 26 20 30 37 27 29 26 34 25 21 19 16 17 20 23 21 14 26 25 23 31 25 36 30 23 23 29 25 20 35 18 29 26 35 23 24 32 22 23 15 1073
073 Measuring and Testing 20 19 25 33 33 35 37 24 38 30 29 27 23 25 41 24 24 17 18 16 21 22 33 21 19 11 23 24 15 14 22 18 28 19 14 21 22 20 13 19 21 20 24 45 1047
439 Electrical Connectors 23 43 37 26 32 19 22 13 16 25 13 24 15 20 15 14 17 14 10 12 12 15 21 25 31 23 23 27 22 25 20 35 30 23 28 35 26 25 28 26 15 18 27 16 986
060 Power Plants 27 32 28 25 26 19 13 20 20 21 16 24 18 22 21 18 22 19 21 8 16 27 18 20 19 17 21 8 15 21 21 11 28 16 7 12 19 26 17 12 15 15 17 28 846
250 Radiant Energy 21 21 18 24 11 20 19 36 25 17 20 19 18 24 17 14 6 12 14 7 10 17 14 19 24 16 17 18 13 27 22 21 27 25 11 13 22 19 26 28 15 20 22 24 833
029 Metal Working 16 23 23 28 28 16 12 28 32 25 26 20 19 21 21 14 12 15 17 15 9 11 17 27 17 18 24 21 13 23 13 21 21 9 12 16 11 12 14 10 13 12 10 14 779
222 Dispensing (apparatus and process) 9 41 40 49 22 32 20 24 28 20 20 19 27 24 17 14 8 14 10 3 12 16 13 8 6 7 8 12 18 12 19 20 9 9 11 8 20 11 10 12 8 14 14 14 732
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 1 0 2 10 13 7 19 10 13 14 12 11 14 24 16 19 6 12 13 17 15 6 12 13 12 20 29 9 20 9 14 6 5 13 7 7 7 22 23 35 39 45 43 47 691
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 0 0 0 3 0 0 1 1 1 3 1 2 2 3 3 5 3 1 13 3 2 10 16 15 18 16 33 19 12 7 12 9 8 11 22 48 45 66 45 51 22 27 63 59 681
435 Chemistry: Molecular Biology and Microbiology 3 0 3 3 0 2 2 1 4 4 15 11 11 5 7 3 2 6 8 8 3 11 5 12 14 10 9 13 16 16 21 12 16 19 36 40 49 37 51 45 45 35 28 35 676
210 Liquid Purification or Separation 5 5 7 17 12 21 23 20 14 10 20 11 21 16 13 18 7 15 7 10 6 9 15 13 13 17 20 18 16 20 19 17 10 17 14 19 25 16 10 20 12 22 21 16 657
606 Surgery (instruments) 1 1 2 1 3 3 3 5 8 5 7 6 4 5 3 5 3 6 3 2 1 1 11 16 13 9 3 16 14 27 26 54 65 63 42 47 41 30 20 14 13 12 18 18 650
361 Electricity: Electrical Systems and Devices 3 17 24 22 26 16 20 16 12 14 17 18 9 16 13 11 10 9 12 11 7 13 17 14 34 18 19 15 10 19 12 10 22 13 12 16 11 18 11 15 12 15 7 12 648
200 Electricity: Circuit Makers and Breakers 26 39 57 43 32 22 14 18 27 21 15 15 16 8 18 10 8 9 13 7 10 19 11 4 10 12 7 10 6 7 7 11 10 15 11 11 12 15 8 11 3 5 2 0 635
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 10 5 6 17 12 16 18 17 24 21 19 24 17 22 15 12 3 10 13 10 17 5 14 15 17 18 15 11 13 13 21 19 14 9 9 16 15 20 15 18 12 13 12 5 627
356 Optics: Measuring and Testing 3 2 5 9 5 7 13 19 14 13 10 20 21 16 7 7 14 15 12 8 4 12 11 17 19 17 19 14 7 16 16 16 16 23 15 28 20 16 10 14 16 25 20 29 620
416 Fluid Reaction Surfaces (i.e., Impellers) 20 12 20 6 12 10 10 9 10 6 29 16 15 15 18 18 9 11 14 15 3 19 19 22 23 14 18 6 14 13 9 13 17 7 14 12 13 11 13 10 11 9 20 25 610
128 Surgery (includes Class 600) 5 3 2 4 6 5 3 3 9 9 6 12 9 10 8 14 4 14 11 6 5 9 11 12 16 9 16 17 15 16 21 21 21 19 16 35 28 38 29 27 21 20 11 21 597
340 Communications: Electrical 11 10 12 23 5 12 15 14 31 22 12 14 10 6 16 15 11 12 7 5 6 3 13 9 15 10 15 14 20 11 10 9 12 13 13 15 21 20 14 14 9 17 18 25 589
206 Special Receptacle or Package 13 20 29 15 22 16 16 15 7 8 8 6 13 10 5 11 13 7 7 8 12 8 5 4 11 16 20 8 15 21 23 21 22 15 11 22 16 15 18 16 4 10 7 7 576
219 Electric Heating 9 15 14 16 6 19 21 23 21 15 10 5 17 12 8 12 12 30 17 17 14 10 11 11 13 14 7 13 7 6 6 8 12 8 9 10 23 15 10 13 10 9 6 8 552
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 5 7 18 9 12 12 22 19 19 14 13 19 12 12 21 17 17 9 22 15 8 4 7 10 7 11 15 9 9 12 14 15 10 11 10 9 9 14 10 4 7 13 1 3 516
359 Optics: Systems and Elements 0 2 4 5 8 8 15 26 16 10 13 10 9 15 7 8 7 12 9 6 7 6 3 6 16 10 15 17 6 10 11 12 7 13 7 17 9 20 17 17 22 18 19 36 511
137 Fluid Handling 12 19 23 21 13 15 17 33 29 17 22 10 15 13 8 7 3 7 10 10 5 6 10 6 7 6 8 8 12 12 8 15 6 12 8 5 8 8 9 8 3 7 13 9 503
427 Coating Processes 2 3 8 6 7 9 13 5 17 19 11 11 13 13 10 11 9 4 9 9 9 7 9 11 14 15 14 15 10 18 9 20 7 10 13 15 14 25 14 16 17 9 7 6 493
030 Cutlery 9 5 15 12 11 7 8 10 15 14 20 25 14 17 8 10 12 14 15 7 9 10 10 8 10 8 13 9 13 10 7 12 13 5 8 12 7 9 10 9 16 11 8 15 490
324 Electricity: Measuring and Testing 8 8 13 18 7 12 10 11 7 10 12 9 6 11 10 11 5 4 14 6 7 7 9 7 18 11 16 13 15 12 9 12 12 13 12 10 6 19 11 18 20 10 16 5 480
384 Bearings 8 9 8 12 16 13 16 22 15 15 20 21 22 24 14 14 5 3 5 12 8 12 7 7 5 9 12 10 12 10 8 1 14 12 6 9 10 3 7 8 8 3 5 7 467
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 7 8 15 24 15 13 13 8 18 10 8 8 2 5 7 8 5 5 13 8 4 6 6 5 11 12 7 15 24 19 13 13 7 7 7 5 9 5 20 21 11 9 10 5 451
426 Food or Edible Material: Processes, Compositions, and Products 2 12 3 5 7 12 13 8 13 15 7 9 12 13 8 4 6 12 17 14 19 13 8 14 9 8 18 14 10 20 7 6 8 7 7 11 18 15 10 6 6 9 3 5 443
376 Induced Nuclear Reactions: Processes, Systems, and Elements 3 4 8 10 10 7 10 5 11 10 13 28 10 12 20 16 13 9 9 13 5 13 5 7 10 13 9 7 8 10 29 33 10 5 4 7 4 8 11 8 4 2 0 2 435
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 1 0 0 10 15 5 6 7 4 2 5 7 3 13 16 35 40 23 30 33 49 33 13 19 29 8 5 4 6 424
072 Metal Deforming 18 15 18 20 19 19 28 15 11 14 14 12 16 6 17 8 11 8 14 7 9 10 3 10 1 6 3 8 7 8 4 7 9 6 7 2 5 5 5 0 1 2 1 3 412
174 Electricity: Conductors and Insulators 10 10 9 9 10 15 11 6 12 5 7 8 10 4 3 6 7 5 6 7 4 11 9 6 7 6 11 10 11 5 15 9 13 7 8 16 9 8 26 16 8 9 9 18 411
604 Surgery (Medicators and Receptors) 2 3 2 3 3 1 4 8 6 4 6 8 11 10 11 3 6 5 6 4 4 6 5 2 7 9 13 14 21 15 12 16 23 18 13 23 21 9 8 15 15 10 8 13 406
083 Cutting 5 10 15 13 10 10 4 10 12 7 23 19 14 8 7 9 14 20 11 9 10 16 10 9 10 7 8 5 15 7 7 8 3 1 5 7 4 5 6 4 3 3 2 7 392
271 Sheet Feeding or Delivering 4 7 8 6 2 3 4 2 9 5 1 4 7 8 7 6 4 8 3 5 9 5 8 5 8 10 4 18 8 23 19 13 21 20 12 4 14 10 16 13 19 18 7 4 391
415 Rotary Kinetic Fluid Motors or Pumps 3 4 4 7 9 11 7 5 7 4 10 6 20 17 11 3 4 4 12 8 14 14 6 4 21 9 13 4 1 9 5 3 16 12 3 5 7 16 10 14 6 5 11 24 388
423 Chemistry of Inorganic Compounds 10 8 7 10 9 21 23 15 17 17 12 14 10 12 13 7 10 7 11 5 8 10 10 4 2 10 14 5 8 9 1 4 4 5 2 5 3 6 1 1 5 4 6 4 369
148 Metal Treatment 5 6 8 8 18 5 6 18 15 17 14 12 11 11 10 13 7 10 5 3 10 6 11 11 10 12 5 4 6 7 7 10 5 7 5 7 12 5 6 4 6 4 3 2 367
244 Aeronautics and Astronautics 20 6 14 12 11 11 19 12 5 8 9 7 4 8 6 8 4 7 8 3 3 2 8 6 7 11 7 4 4 14 16 13 6 7 3 10 5 12 10 11 7 8 7 4 367
310 Electrical Generator or Motor Structure 13 9 13 25 12 14 18 23 10 7 5 10 7 8 6 4 2 5 7 9 7 3 7 9 8 11 5 6 7 7 9 6 2 6 4 6 12 9 6 7 6 10 6 0 366
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 2 1 6 9 9 15 14 8 18 14 8 9 16 5 7 12 8 8 12 1 8 9 7 5 8 9 10 15 8 6 8 8 5 14 4 4 4 5 4 10 7 6 7 5 358
123 Internal-Combustion Engines 5 0 11 3 8 6 6 1 9 0 4 6 5 7 8 6 6 5 3 5 10 15 16 6 10 4 13 7 11 6 10 11 12 8 8 11 8 16 13 17 10 8 13 7 354
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 9 9 17 14 9 9 10 2 9 14 15 13 6 5 1 1 5 3 7 11 5 7 5 3 3 7 6 6 6 16 5 12 12 6 2 6 11 5 6 9 13 8 8 17 353
318 Electricity: Motive Power Systems 4 9 7 13 11 8 14 19 14 11 12 5 7 10 6 15 9 5 7 3 3 10 11 7 8 7 12 11 2 2 3 11 4 9 2 6 12 10 6 3 2 4 6 1 341
074 Machine Element or Mechanism 11 13 19 9 14 16 14 11 18 9 18 13 6 10 12 12 8 6 7 4 3 4 6 6 7 4 3 4 1 3 11 2 6 10 4 7 4 2 6 3 2 2 2 3 335
101 Printing 7 6 11 17 3 11 5 2 9 8 15 11 9 5 12 6 3 1 8 2 9 9 11 11 13 7 11 10 5 8 7 9 16 9 7 14 11 5 4 1 0 2 4 1 335
227 Elongated-Member-Driving Apparatus 1 2 6 4 8 3 0 11 7 8 4 5 5 6 1 4 1 2 2 5 9 6 7 14 14 9 8 8 13 11 6 19 27 20 12 15 13 7 5 2 1 5 5 11 332
052 Static Structures (e.g., Buildings) 7 4 6 10 19 9 10 11 6 6 6 5 7 14 4 4 9 9 2 4 8 10 4 7 9 6 6 8 1 4 10 12 5 9 7 10 10 6 10 7 7 11 6 4 329
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 6 5 11 14 18 8 13 16 21 18 19 17 11 12 10 9 11 9 12 7 7 2 3 4 1 4 4 2 3 2 11 4 3 9 5 3 1 3 3 3 1 2 1 1 329
367 Communications, Electrical: Acoustic Wave Systems and Devices 5 2 3 15 9 9 3 3 9 3 5 1 2 8 2 1 7 9 4 5 6 10 5 5 6 10 13 13 15 12 14 10 8 18 10 16 5 7 6 5 10 6 4 6 325
053 Package Making 3 7 5 9 11 7 10 13 9 10 9 10 5 11 4 9 2 5 3 5 4 8 6 5 11 6 11 5 6 6 11 8 10 9 12 9 8 6 3 4 3 8 7 11 324
042 Firearms 6 20 16 15 7 15 13 11 17 17 21 10 3 10 7 6 3 4 6 6 6 5 5 4 4 4 4 2 11 5 6 2 4 5 3 2 5 2 7 6 4 4 4 2 319
239 Fluid Sprinkling, Spraying, and Diffusing 8 9 13 10 15 13 14 10 16 10 10 16 8 8 3 7 8 4 5 8 3 4 5 5 3 6 4 7 7 6 3 5 4 4 4 7 11 7 3 4 6 2 9 4 318
252 Compositions 0 2 1 5 12 9 17 9 8 15 15 9 10 14 6 10 10 8 8 6 10 3 8 6 7 5 10 6 7 9 7 7 2 4 6 7 5 4 5 4 4 10 5 1 316
248 Supports (e.g., for holding articles, etc.) 3 18 10 8 9 3 10 8 10 4 6 4 2 9 4 6 3 7 2 3 6 1 8 1 6 13 10 13 12 13 10 8 6 10 6 5 7 12 10 5 8 4 4 7 314
033 Geometrical Instruments 10 8 19 12 12 8 9 11 7 7 7 9 14 8 2 5 10 6 5 3 4 12 3 7 5 8 1 8 9 3 7 5 6 3 1 5 2 2 7 11 5 6 9 9 310
220 Receptacles 9 5 9 10 12 17 12 5 11 8 3 5 10 9 8 2 1 3 5 6 6 14 5 6 7 10 10 7 8 6 8 5 6 9 6 6 7 11 6 4 5 0 2 5 309
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 1 0 0 1 0 3 3 3 4 2 2 1 2 3 3 3 2 2 10 8 9 12 17 4 15 13 13 21 10 5 13 12 9 6 20 5 21 24 8 14 304
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 6 3 11 5 4 3 13 8 8 4 4 2 13 7 7 3 4 3 7 5 5 4 3 3 5 6 8 3 13 4 9 9 8 10 1 14 16 6 10 10 7 11 12 5 302
362 Illumination 2 3 8 6 3 6 4 9 11 5 7 7 4 3 8 2 1 6 5 2 7 4 6 15 4 7 8 9 10 4 6 8 8 9 12 9 5 10 11 8 8 10 9 10 299
204 Chemistry: Electrical and Wave Energy 4 5 11 13 12 7 6 1 9 9 13 12 9 11 4 4 3 4 2 5 8 5 7 10 10 9 11 9 3 4 1 9 8 4 3 4 3 7 4 6 7 7 6 2 291
473 Games Using Tangible Projectile 8 6 9 12 5 1 7 3 3 3 6 9 5 6 3 2 6 0 6 4 4 5 5 2 3 3 9 4 4 13 6 13 9 4 9 14 13 11 14 9 12 6 10 5 291
065 Glass Manufacturing 0 2 5 7 9 6 3 3 12 2 10 8 10 6 9 1 4 3 11 3 12 8 11 11 9 14 14 5 7 4 8 2 2 4 3 9 5 4 6 4 7 18 3 3 287
385 Optical Waveguides 0 0 1 4 0 1 3 0 2 1 1 2 5 2 1 3 6 6 5 6 3 8 4 6 9 7 6 2 17 10 9 5 16 11 9 3 9 4 16 18 14 16 16 15 282
372 Coherent Light Generators 0 0 3 4 4 7 10 12 36 23 15 10 14 8 2 2 5 3 2 5 5 6 8 2 5 4 7 4 0 6 11 6 4 1 5 3 1 4 4 4 3 8 6 9 281
015 Brushing, Scrubbing, and General Cleaning 8 6 12 14 8 17 3 6 8 9 6 6 4 6 6 4 3 5 2 2 2 0 4 1 1 4 8 11 9 12 4 9 10 3 12 11 11 9 6 3 6 4 1 2 278
062 Refrigeration 5 3 8 2 5 8 7 1 1 3 4 5 5 0 6 2 2 8 6 8 6 7 12 5 3 8 6 5 3 5 4 14 5 7 5 10 10 9 5 12 13 14 7 11 275
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 1 3 6 9 5 1 7 3 4 9 16 18 8 10 4 4 2 3 9 6 8 5 6 1 8 8 4 6 3 4 10 7 7 6 3 6 6 9 4 9 3 4 4 10 269
400 Typewriting Machines 6 9 18 15 20 5 5 2 14 2 5 5 19 11 6 2 7 4 1 3 5 7 3 2 4 0 1 2 4 2 3 5 10 5 3 9 8 4 6 3 4 5 6 3 263
417 Pumps 8 8 12 7 7 6 6 5 5 5 6 10 6 3 4 4 6 4 5 8 12 6 12 3 4 3 5 2 2 2 9 9 4 3 2 7 5 8 6 7 5 4 1 5 251
347 Incremental Printing of Symbolic Information 1 0 0 0 1 0 0 0 2 2 1 2 0 0 1 0 1 1 4 11 10 11 8 13 22 8 14 7 3 0 5 5 2 7 9 15 15 9 17 12 12 8 5 2 246
165 Heat Exchange 4 8 6 17 12 11 7 11 11 1 2 9 6 3 3 2 5 2 14 7 6 5 5 6 6 4 5 2 6 4 2 11 4 3 2 1 2 4 6 5 5 2 4 3 244
379 Telephonic Communications 0 0 3 2 0 1 1 3 3 2 8 3 4 2 5 2 1 1 4 8 3 6 5 8 10 5 13 9 6 2 5 2 10 9 9 5 8 7 17 13</