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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

MASSACHUSETTS

( 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
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 5 8 1 2 6 2 6 6 6 12 9 13 20 19 18 11 13 17 28 32 27 39 28 22 38 47 59 67 82 69 94 96 93 143 257 290 315 253 321 304 343 280 251 269 4021
435 Chemistry: Molecular Biology and Microbiology 0 1 0 4 2 1 1 3 1 6 3 7 12 9 10 11 6 10 17 17 17 22 16 16 42 44 49 62 67 66 98 74 79 149 220 275 259 232 273 255 229 176 164 196 3201
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 41 44 81 107 91 72 84 59 64 67 44 44 47 50 51 57 30 53 52 41 59 47 44 47 58 35 53 39 65 50 44 45 22 44 40 44 73 62 75 77 51 57 36 64 2410
532 Organic Compounds (includes Classes 532-570) 39 48 32 63 65 28 54 45 25 68 35 62 64 63 42 38 27 28 48 26 27 34 24 33 24 27 20 29 18 25 48 43 36 44 65 82 66 76 76 92 73 62 62 104 2090
128 Surgery (includes Class 600) 1 6 8 6 8 6 12 10 27 18 21 25 25 26 13 14 23 29 25 16 20 23 14 32 27 27 37 51 51 59 65 87 84 79 79 135 126 119 105 110 112 113 71 93 2038
250 Radiant Energy 16 24 20 37 32 32 27 45 46 40 41 36 33 36 32 35 14 28 28 8 29 37 37 27 45 36 49 44 44 29 32 30 34 28 31 48 41 33 47 49 67 105 64 122 1718
428 Stock Material or Miscellaneous Articles 25 34 38 32 24 35 45 34 61 51 27 39 37 26 28 36 18 23 28 24 28 33 39 45 36 37 43 50 43 44 45 43 40 48 46 52 69 54 35 42 54 40 29 30 1690
073 Measuring and Testing 29 33 51 48 51 49 48 50 57 35 29 38 34 35 36 36 21 34 25 18 15 28 31 31 26 25 32 31 30 32 30 43 48 47 38 53 48 40 40 45 49 42 48 59 1668
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 17 24 34 67 56 29 54 30 102 93 67 67 43 31 22 21 19 22 58 37 27 25 19 16 18 14 16 15 10 16 33 36 31 31 33 23 28 31 28 25 27 37 29 25 1486
606 Surgery (instruments) 3 1 1 1 3 1 3 1 1 7 3 2 5 4 9 4 3 6 2 7 4 5 9 8 17 12 21 23 27 37 40 49 44 46 73 91 104 92 89 83 121 65 77 76 1280
396 Photography 21 29 31 45 37 37 53 47 62 84 74 56 45 48 58 50 40 48 44 56 15 24 46 21 16 14 16 8 10 11 7 5 7 6 5 15 14 10 7 3 10 5 1 0 1241
359 Optics: Systems and Elements 0 6 10 8 10 14 25 43 35 41 24 30 31 22 19 26 13 15 15 9 14 26 26 17 20 23 30 28 37 29 27 23 19 28 24 36 37 35 39 68 60 60 42 48 1192
361 Electricity: Electrical Systems and Devices 10 18 38 37 36 27 29 52 55 38 23 20 24 25 14 26 20 19 15 16 15 31 21 10 23 21 24 23 23 27 26 26 27 32 20 32 32 32 32 43 41 31 22 22 1178
370 Multiplex Communications 2 1 0 3 1 1 0 3 2 5 5 8 0 3 3 4 3 3 5 2 5 5 10 7 17 9 10 12 9 18 20 32 58 38 32 42 64 64 98 76 118 100 92 150 1140
604 Surgery (Medicators and Receptors) 8 7 4 4 2 8 3 8 10 12 5 4 5 10 6 8 1 14 9 5 5 11 10 20 23 25 30 33 32 49 49 61 56 39 45 52 64 52 48 49 85 57 44 50 1122
324 Electricity: Measuring and Testing 14 11 22 24 19 21 29 33 27 29 29 25 16 18 21 25 17 15 18 12 11 20 14 16 22 22 28 28 30 28 39 27 26 34 23 32 31 23 34 33 34 47 41 41 1109
356 Optics: Measuring and Testing 4 5 5 10 15 11 14 36 36 22 31 31 19 19 12 25 13 11 21 21 18 20 19 20 24 22 22 21 17 23 13 24 34 20 27 37 27 36 24 30 49 42 34 27 991
210 Liquid Purification or Separation 6 2 5 13 11 10 10 15 21 24 15 19 10 18 23 14 11 24 22 11 14 14 14 18 18 18 31 25 36 49 39 29 45 30 25 35 44 46 40 26 28 25 21 34 988
711 Memory (Electrical Computers and Digital Processing Systems) 0 1 1 0 3 3 3 1 2 2 5 11 3 9 10 10 9 8 6 13 13 15 24 5 8 16 20 15 17 20 26 32 23 30 20 30 34 50 65 59 92 70 67 59 910
340 Communications: Electrical 7 10 26 11 8 11 29 22 31 40 36 37 25 28 21 19 16 27 20 16 19 14 14 13 14 13 19 16 17 17 10 14 20 19 17 24 18 18 28 25 24 26 30 37 906
029 Metal Working 27 18 29 22 19 35 28 27 27 21 31 30 28 19 29 23 20 9 13 15 23 12 24 28 18 20 22 14 16 22 18 11 14 16 9 18 17 13 21 24 18 16 17 16 897
315 Electric Lamp and Discharge Devices: Systems 25 12 18 28 24 26 32 22 22 21 33 16 17 21 20 16 13 20 17 22 17 21 22 11 21 14 16 15 23 20 15 20 9 13 8 14 9 33 22 13 17 20 25 31 854
714 Error Detection/Correction and Fault Detection/Recovery 2 5 4 7 3 0 5 10 6 6 1 15 10 6 6 4 4 7 5 12 9 10 17 14 12 13 20 24 18 28 32 36 19 27 30 43 44 34 33 33 64 58 45 53 834
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 25 23 24 37 17 15 17 14 15 12 10 16 15 21 15 12 14 14 26 11 15 11 15 16 14 8 21 24 23 19 17 17 11 16 17 31 31 21 23 27 27 29 21 21 828
313 Electric Lamp and Discharge Devices 16 17 16 31 30 23 11 28 20 17 24 16 29 24 27 10 10 5 19 12 12 12 18 27 23 19 36 25 26 20 19 9 8 13 12 20 9 12 16 13 20 19 10 17 800
427 Coating Processes 16 8 15 18 16 12 21 20 16 16 14 20 16 15 18 22 19 19 16 15 13 16 20 16 14 12 20 26 22 26 17 23 19 20 25 20 20 26 22 20 26 16 15 14 800
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 10 17 23 25 22 18 23 29 32 37 33 29 28 23 15 18 10 20 17 9 12 14 9 8 12 13 16 18 10 10 9 18 6 20 13 21 17 23 11 17 18 12 13 13 771
345 Computer Graphics Processing and Selective Visual Display Systems 1 1 4 1 2 3 3 2 8 11 15 4 6 2 6 7 2 4 6 6 7 9 6 8 13 12 21 11 17 14 14 18 14 26 17 36 21 55 60 70 53 46 50 69 761
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 3 8 8 9 11 15 33 23 25 18 13 16 27 21 27 31 15 21 25 21 23 20 25 17 14 10 9 7 2 11 8 7 15 25 14 11 19 24 31 27 13 9 13 20 744
473 Games Using Tangible Projectile 8 7 5 6 8 4 6 7 4 4 7 12 7 16 6 8 10 3 7 6 3 5 3 5 7 12 13 16 20 24 14 21 18 25 22 40 31 37 60 51 50 34 41 46 739
219 Electric Heating 16 17 15 14 10 16 22 21 30 12 22 23 7 25 7 18 8 11 5 17 22 25 11 13 20 11 14 18 15 11 22 15 9 11 5 7 18 22 18 29 27 31 23 21 734
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 0 1 0 0 0 0 0 1 1 0 0 0 1 2 1 3 1 0 2 2 0 3 1 6 3 6 4 8 10 16 9 23 22 56 54 61 54 57 59 77 66 121 731
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 23 14 27 20 31 17 34 23 48 31 22 18 14 17 11 8 8 15 13 13 12 14 8 9 14 11 9 12 6 18 9 9 16 9 10 12 15 18 16 23 19 16 16 18 726
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 1 5 1 5 5 1 4 2 4 10 3 6 11 13 3 9 12 10 8 10 15 14 9 10 10 12 25 20 25 29 16 18 20 25 30 36 37 38 23 45 65 37 39 721
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 23 19 21 30 19 12 13 10 17 13 35 25 20 20 22 23 13 14 9 9 4 10 6 12 17 6 21 16 11 25 24 15 10 9 9 14 15 17 22 17 27 16 15 15 720
385 Optical Waveguides 0 1 3 3 1 3 4 1 5 2 1 4 5 5 4 8 5 10 7 5 10 7 14 12 28 24 18 25 31 33 16 16 10 17 9 17 18 17 22 45 58 57 67 64 712
707 DP: Database and File Management or Data Structures (Data Processing) 0 0 0 0 0 0 0 0 1 0 0 0 1 0 4 5 0 1 0 0 1 0 1 2 1 2 6 5 2 6 16 23 16 21 13 44 53 42 48 70 84 75 54 112 709
439 Electrical Connectors 15 13 21 15 12 16 12 8 10 21 18 14 11 10 5 13 11 11 6 11 12 16 14 13 25 14 12 12 11 14 13 13 18 12 9 22 15 40 21 18 20 22 23 32 674
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 1 0 2 2 0 1 2 1 0 1 0 3 0 1 0 1 1 3 3 6 8 6 4 12 10 12 16 15 23 26 21 17 26 39 63 53 47 40 49 34 37 29 57 673
382 Image Analysis 0 2 5 3 2 0 1 1 2 2 5 5 5 5 1 0 2 2 2 1 2 5 6 11 6 11 9 11 20 21 10 14 9 21 24 44 46 51 76 43 40 54 35 54 669
137 Fluid Handling 25 14 14 16 23 25 25 29 39 21 27 25 21 11 11 12 8 12 11 6 7 7 10 10 10 14 12 13 8 17 14 16 10 9 10 9 14 12 19 11 12 13 9 14 655
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 3 2 11 7 15 11 22 8 19 11 13 3 8 10 9 6 11 11 7 3 4 8 9 5 10 13 10 23 23 25 11 22 19 14 24 22 18 18 17 21 25 35 50 39 655
204 Chemistry: Electrical and Wave Energy 1 5 4 11 9 12 15 12 18 21 28 16 20 19 12 8 9 11 11 12 9 19 15 13 12 12 17 19 17 24 19 19 16 23 16 15 21 19 23 17 8 13 14 9 643
206 Special Receptacle or Package 15 27 22 17 35 21 15 8 18 16 13 14 14 20 15 17 10 9 12 3 5 13 9 12 12 11 16 17 20 13 6 14 9 23 15 22 16 18 14 6 18 5 14 12 641
438 Semiconductor Device Manufacturing: Process 11 10 3 6 6 7 11 7 17 7 3 4 5 4 8 7 9 13 7 9 12 13 19 17 12 15 13 11 20 25 23 18 13 16 14 9 17 20 18 27 22 31 41 45 625
333 Wave Transmission Lines and Networks 25 20 20 24 16 23 24 31 44 24 23 16 14 19 14 17 14 9 10 12 2 9 15 14 10 11 5 9 9 12 7 10 5 4 2 2 6 5 10 11 24 17 11 15 624
375 Pulse or Digital Communications 0 0 2 1 4 6 3 3 10 9 7 8 8 8 14 6 2 3 4 8 2 11 10 14 19 11 13 15 16 17 16 29 21 14 13 25 19 30 19 23 24 29 24 36 556
372 Coherent Light Generators 0 1 3 5 9 7 11 9 19 20 20 12 15 22 8 7 7 8 9 10 7 9 3 12 20 22 17 16 17 27 12 19 12 8 9 8 3 13 13 15 20 31 20 15 550
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 2 5 2 8 7 4 9 10 9 8 8 9 16 2 6 5 3 14 8 7 3 6 5 9 8 19 22 9 26 24 20 18 13 14 11 17 28 27 18 25 17 17 13 513
310 Electrical Generator or Motor Structure 12 16 28 15 20 8 23 19 11 7 15 11 7 12 7 7 3 11 7 10 8 13 4 13 11 5 6 6 8 4 8 6 4 5 9 15 13 14 20 15 11 19 21 13 500
060 Power Plants 16 11 20 13 19 7 8 12 9 11 12 22 8 26 9 10 8 7 10 7 8 10 6 10 10 7 8 6 10 7 13 11 9 17 14 12 7 9 13 10 12 14 12 17 497
062 Refrigeration 9 11 14 13 12 10 9 2 13 7 3 10 3 4 5 8 8 8 8 11 12 19 18 7 9 14 20 15 12 8 18 16 6 13 8 19 18 8 15 17 15 15 11 11 492
378 X-Ray or Gamma Ray Systems or Devices 4 5 8 4 3 5 5 4 3 3 8 3 3 5 5 5 6 8 7 7 7 4 10 5 13 4 17 10 11 11 7 4 15 16 17 26 26 27 34 33 13 29 18 33 491
436 Chemistry: Analytical and Immunological Testing 1 0 1 0 0 2 3 3 2 2 3 2 8 9 5 9 10 4 11 8 7 12 1 5 12 14 18 16 12 18 26 20 13 21 13 23 24 19 14 23 31 25 21 15 486
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 7 3 3 7 9 12 14 13 13 9 14 20 12 9 10 11 8 13 22 10 12 10 13 7 14 11 11 18 19 10 14 15 10 9 14 8 7 10 10 9 11 8 5 8 482
341 Coded Data Generation or Conversion 4 5 11 10 8 4 6 10 18 19 13 7 10 8 8 6 4 6 6 8 5 7 12 9 3 3 14 14 8 8 11 9 15 18 15 16 10 14 21 10 24 17 16 24 474
451 Abrading 21 20 18 20 14 12 13 17 38 35 22 29 22 7 7 11 5 9 9 4 2 3 4 4 4 3 10 5 7 10 9 1 3 4 6 4 7 10 6 10 8 5 5 7 470
360 Dynamic Magnetic Information Storage or Retrieval 8 8 10 13 13 10 9 12 9 16 9 16 6 8 7 3 13 14 10 11 2 8 7 7 6 1 14 15 9 12 10 15 11 9 7 13 13 20 13 12 13 10 12 15 459
222 Dispensing (apparatus and process) 22 19 23 22 27 15 13 9 15 14 20 16 18 7 15 8 7 3 7 3 3 7 7 5 5 9 8 9 9 5 5 6 9 7 6 7 7 12 13 7 7 5 5 5 451
174 Electricity: Conductors and Insulators 16 15 19 24 14 15 10 11 12 8 9 9 9 3 8 17 7 2 4 4 7 6 8 4 1 7 6 4 5 7 9 10 3 11 8 7 7 10 19 22 16 21 17 18 449
362 Illumination 5 4 7 15 8 9 8 7 16 8 14 14 4 7 8 8 11 15 14 16 19 7 9 8 8 10 9 11 11 14 7 12 5 7 8 3 19 15 13 14 15 11 6 10 449
379 Telephonic Communications 2 2 3 3 4 2 6 10 12 6 3 3 2 3 7 4 3 3 9 3 3 8 4 4 9 2 7 7 9 9 12 10 9 16 16 23 16 17 14 24 26 42 33 35 445
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 0 0 2 0 0 3 2 1 2 1 2 0 3 3 3 4 1 2 3 3 1 0 2 1 1 1 7 8 2 11 4 14 9 14 16 23 35 29 40 25 38 43 32 53 444
248 Supports (e.g., for holding articles, etc.) 5 10 16 21 18 10 11 6 6 11 12 11 5 7 6 7 2 4 4 10 9 6 13 9 9 10 11 9 9 14 13 16 11 10 4 16 17 22 11 14 12 5 5 5 442
036 Boots, Shoes, and Leggings 10 16 16 14 19 11 14 18 12 7 11 4 2 4 3 3 2 2 6 6 7 7 8 8 14 13 17 10 15 6 13 12 9 7 6 7 12 13 9 10 10 11 8 19 431
423 Chemistry of Inorganic Compounds 9 11 12 9 12 20 15 15 7 17 7 11 14 15 9 14 4 7 12 9 6 6 5 6 6 3 8 12 5 10 9 12 9 7 8 6 12 11 9 6 8 5 9 11 418
348 Television 2 1 1 5 4 6 7 6 9 7 5 2 3 8 8 3 10 5 5 4 3 9 14 11 14 14 20 11 14 3 5 7 8 12 10 18 21 14 20 21 18 18 9 20 415
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 13 10 19 15 17 20 12 13 21 23 11 12 6 12 10 10 4 8 9 6 10 5 4 2 3 4 4 3 4 4 7 4 6 6 4 8 13 7 11 6 16 15 4 5 406
052 Static Structures (e.g., Buildings) 9 13 13 11 6 7 11 5 16 9 11 16 9 9 11 13 8 9 2 5 8 6 5 4 7 3 7 4 6 8 9 14 8 10 8 10 13 9 19 12 10 10 10 8 401
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 3 0 0 0 1 3 0 2 7 4 3 2 5 4 2 7 4 5 2 11 6 16 5 4 2 7 12 8 20 29 12 15 18 17 12 16 22 16 20 11 13 18 20 12 396
455 Telecommunications 7 4 10 5 6 7 7 11 5 10 4 6 10 4 6 3 3 5 2 4 6 4 8 3 6 5 2 4 2 5 6 4 5 8 6 10 11 10 6 16 30 29 26 64 395
118 Coating Apparatus 5 6 15 22 18 10 18 12 14 7 11 13 12 3 9 10 3 1 5 2 2 10 11 8 10 6 8 2 6 7 6 8 6 9 13 8 9 13 13 7 9 11 6 7 391
030 Cutlery 8 5 8 9 5 9 6 5 7 15 5 19 14 7 5 11 8 8 17 9 15 8 10 7 6 6 10 10 16 10 5 7 6 8 4 11 12 9 13 9 9 3 5 9 388
708 Arithmetic Processing and Calculating (Electrical Computers) 4 4 6 9 11 4 7 10 13 12 12 7 7 8 7 12 5 7 7 2 7 13 7 7 11 11 18 13 7 13 6 6 3 5 6 14 10 15 10 10 9 7 8 18 388
330 Amplifiers 7 6 11 14 4 14 22 20 20 19 9 7 9 8 1 7 7 7 5 3 1 11 9 9 12 6 7 8 7 6 7 4 7 4 4 11 4 6 5 15 14 13 2 15 387
200 Electricity: Circuit Makers and Breakers 15 18 29 20 21 11 10 12 17 17 14 10 16 8 9 15 9 6 12 7 8 14 5 1 9 7 0 3 3 3 2 6 5 2 1 10 8 3 2 3 2 3 6 2 384
280 Land Vehicles 12 7 7 6 6 3 6 10 8 2 9 13 7 10 7 7 3 6 7 6 7 3 4 5 8 8 9 6 11 5 13 13 11 14 6 12 17 14 11 19 12 6 6 14 376
365 Static Information Storage and Retrieval 15 14 14 12 5 10 23 21 16 19 25 16 7 5 9 7 4 5 4 2 1 3 0 3 9 6