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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 CAROLINA

( 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) 0 1 2 1 3 2 1 2 3 4 3 2 6 6 9 12 4 4 7 17 10 15 17 15 27 24 45 27 34 46 51 33 39 61 78 81 100 97 126 112 120 73 76 107 1503
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 2 10 21 21 42 39 28 20 15 25 6 21 17 16 7 14 7 9 12 5 7 5 3 4 4 6 14 10 15 20 12 20 16 33 33 28 44 36 37 38 41 31 28 22 844
428 Stock Material or Miscellaneous Articles 5 4 9 13 10 13 8 12 19 21 15 9 10 13 11 14 8 15 11 9 8 12 8 12 19 22 20 13 9 19 17 26 30 31 40 38 44 37 34 39 43 18 26 15 809
532 Organic Compounds (includes Classes 532-570) 2 8 13 11 20 10 9 7 18 14 9 11 11 10 14 8 13 7 13 9 4 11 12 15 9 16 17 13 26 22 25 25 29 30 37 23 31 25 36 34 35 18 29 38 777
435 Chemistry: Molecular Biology and Microbiology 0 0 0 1 1 1 0 1 1 2 0 2 1 4 2 2 3 2 2 2 3 1 2 3 8 5 15 8 10 14 16 30 24 46 59 66 71 51 59 43 56 37 33 45 732
370 Multiplex Communications 0 0 0 0 0 0 1 0 1 2 4 1 6 2 4 0 0 0 0 3 3 2 2 11 4 2 3 5 13 8 19 21 12 26 20 30 38 43 57 50 70 68 72 91 694
439 Electrical Connectors 3 2 0 0 1 1 0 2 3 1 1 2 8 9 7 6 5 13 8 8 5 17 12 7 20 25 20 26 29 22 22 16 26 31 34 30 29 36 35 14 21 21 20 22 620
455 Telecommunications 1 0 1 1 0 0 0 0 2 0 0 0 2 0 1 0 0 0 1 0 0 0 1 2 1 3 2 1 2 1 0 0 2 9 3 32 64 93 76 74 59 48 34 73 589
131 Tobacco 6 2 8 7 8 15 7 8 18 17 14 10 10 16 7 9 6 12 10 7 4 6 10 10 17 23 22 37 39 43 16 19 18 14 14 12 2 7 3 6 2 5 7 6 539
385 Optical Waveguides 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 0 3 3 4 7 8 12 12 8 16 12 14 12 18 17 27 41 40 68 60 48 50 45 530
709 Multicomputer Data Transferring (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 1 2 5 4 4 13 7 24 47 51 45 37 49 54 56 75 478
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 9 4 10 6 13 23 16 10 8 5 12 11 16 8 8 9 4 9 10 9 9 6 4 9 3 1 3 11 19 11 16 10 13 13 17 29 14 18 23 10 5 13 11 3 471
029 Metal Working 5 7 3 7 6 3 10 5 11 7 8 10 19 9 7 6 7 9 8 7 8 10 14 10 16 9 13 7 11 7 13 12 12 12 10 14 16 15 18 11 14 10 10 15 441
066 Textiles: Knitting 20 15 16 17 10 14 12 18 13 6 10 14 13 15 14 5 5 4 7 7 5 4 14 5 5 7 11 2 6 5 7 6 8 14 13 8 8 12 17 6 6 10 7 6 427
361 Electricity: Electrical Systems and Devices 0 1 1 3 5 2 2 3 8 3 7 1 3 6 8 6 2 0 3 0 1 6 2 5 3 2 8 5 9 7 7 17 16 22 18 29 28 33 35 27 19 21 14 29 427
057 Textiles: Spinning, Twisting, and Twining 8 18 9 8 26 17 20 12 10 23 12 28 13 12 17 8 12 12 6 7 4 6 7 7 5 4 8 5 2 2 5 4 8 4 13 12 7 7 6 13 5 6 2 3 423
128 Surgery (includes Class 600) 1 0 1 1 2 0 3 6 4 3 2 4 5 5 4 3 4 2 3 3 7 1 4 6 6 6 11 12 14 12 16 10 16 19 15 26 11 30 25 25 28 20 23 22 421
210 Liquid Purification or Separation 2 0 2 8 3 1 4 5 2 6 6 1 2 4 5 2 3 3 8 7 3 3 6 3 6 6 10 11 12 15 14 13 14 20 14 19 16 15 33 21 18 20 26 15 407
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 2 0 2 12 5 3 6 11 15 7 9 11 9 10 4 13 6 9 12 6 8 11 9 3 5 8 10 8 8 7 11 7 11 5 9 11 13 15 15 10 14 10 10 14 384
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 3 9 6 8 5 7 13 11 9 8 11 12 11 5 4 6 2 6 6 9 3 2 2 4 7 13 16 7 7 5 8 7 11 12 7 15 16 17 16 11 10 4 3 2 356
375 Pulse or Digital Communications 0 0 0 1 0 0 1 0 2 2 1 0 1 1 2 0 0 0 2 0 2 0 1 5 2 2 1 2 3 3 3 4 6 13 7 25 29 25 27 33 38 44 30 34 352
052 Static Structures (e.g., Buildings) 0 2 3 1 8 4 6 4 3 5 3 1 1 2 2 4 2 5 5 5 4 6 5 11 9 7 15 13 7 7 10 9 16 11 10 12 20 19 15 17 11 18 15 18 351
242 Winding, Tensioning, or Guiding 6 10 11 17 16 13 6 7 15 14 4 10 5 12 11 5 6 6 2 6 4 11 10 9 9 4 6 17 7 4 8 5 3 3 5 10 8 11 4 10 10 6 2 1 349
073 Measuring and Testing 2 3 4 1 5 5 7 5 8 2 8 7 3 7 5 5 13 1 4 1 5 1 10 4 6 6 8 10 10 6 8 11 8 9 6 16 8 10 11 17 21 18 16 25 346
219 Electric Heating 4 2 3 3 4 6 7 3 10 4 13 16 2 2 11 7 3 5 14 6 1 8 4 4 3 6 3 3 7 7 4 8 10 7 8 12 18 20 23 15 12 13 12 8 341
340 Communications: Electrical 0 2 2 2 3 0 0 4 4 8 8 3 2 1 2 1 4 8 6 1 4 3 4 8 6 6 8 5 4 6 8 4 5 5 10 11 18 17 21 13 14 20 18 43 322
206 Special Receptacle or Package 4 7 4 4 9 3 3 1 5 8 9 5 4 5 5 5 2 3 5 4 5 6 7 4 9 7 3 5 3 8 15 18 13 9 8 17 11 12 6 13 14 14 10 7 319
324 Electricity: Measuring and Testing 0 3 6 2 3 7 8 6 7 9 7 6 1 4 5 6 5 4 3 2 3 5 4 5 13 5 6 6 7 5 5 7 6 14 3 11 10 7 14 16 22 13 15 9 305
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 0 0 0 1 1 0 0 0 0 1 0 0 0 1 1 1 2 1 1 0 1 0 0 1 2 1 3 3 13 7 11 26 17 13 11 16 6 8 16 15 32 27 35 24 298
297 Chairs and Seats 8 4 4 2 8 5 2 3 1 1 6 9 2 0 2 3 1 8 2 6 4 3 7 3 7 4 8 8 4 10 4 12 7 14 12 12 11 14 6 7 9 17 7 14 281
379 Telephonic Communications 0 0 0 1 1 2 3 2 1 1 1 3 5 1 6 5 1 0 0 1 3 3 1 8 7 2 4 1 0 3 3 6 5 5 5 14 20 19 21 11 23 20 22 40 280
005 Beds 1 4 3 6 12 4 5 2 2 5 5 3 6 6 3 6 2 6 2 1 1 4 10 4 12 10 7 9 6 9 8 8 6 10 7 2 3 11 6 6 8 15 9 9 264
427 Coating Processes 3 1 1 2 4 8 4 8 5 7 3 3 4 1 2 5 2 7 1 2 4 6 8 3 2 2 3 6 14 7 6 8 10 12 9 8 13 15 13 11 7 5 9 6 260
028 Textiles: Manufacturing 6 7 10 10 13 10 16 3 10 10 5 16 10 4 8 8 4 2 1 1 4 2 0 1 4 6 3 10 8 2 2 4 4 5 1 2 5 1 4 6 6 6 3 6 249
414 Material or Article Handling 3 4 7 6 4 5 5 5 9 8 11 6 11 8 10 10 2 2 7 4 4 3 5 5 2 9 3 6 4 1 2 4 3 3 3 6 6 14 9 5 6 6 4 4 244
002 Apparel 3 3 3 4 3 4 3 5 2 6 1 3 2 1 3 4 2 3 3 2 3 1 2 3 5 5 7 5 14 7 6 12 8 12 14 10 12 11 13 7 7 7 9 2 242
174 Electricity: Conductors and Insulators 0 0 2 3 0 1 2 6 5 4 2 1 4 1 1 2 1 1 2 5 4 7 2 1 11 6 3 3 6 1 3 6 3 7 10 9 10 17 18 17 17 12 10 5 231
710 Input/Output (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 1 0 0 0 3 3 0 0 1 0 1 1 1 1 0 2 1 2 2 2 2 1 2 0 2 3 5 3 5 17 20 26 21 22 19 22 15 22 228
248 Supports (e.g., for holding articles, etc.) 2 1 7 2 3 4 4 3 5 3 1 7 1 2 0 4 2 3 2 1 3 6 6 1 2 10 4 8 7 11 4 8 6 6 3 11 10 8 8 10 12 4 8 7 220
362 Illumination 1 3 1 5 7 6 3 2 2 11 4 1 3 2 3 2 4 5 7 5 3 5 4 0 2 2 2 10 7 4 4 1 8 7 4 8 5 7 11 11 8 10 9 8 217
019 Textiles: Fiber Preparation 4 5 9 10 28 23 14 5 7 8 8 5 5 5 3 8 3 4 5 2 2 3 4 2 4 6 3 0 2 3 1 0 2 1 2 5 3 1 1 2 1 0 0 2 211
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 2 0 1 0 2 2 0 4 3 11 9 12 16 28 32 20 32 37 211
015 Brushing, Scrubbing, and General Cleaning 6 3 5 8 3 6 9 6 6 6 3 1 1 4 2 4 3 4 4 1 4 2 7 4 4 1 5 3 7 2 8 8 4 3 8 9 8 9 3 9 6 8 3 0 210
137 Fluid Handling 3 0 3 1 3 5 6 2 2 3 4 0 9 7 2 3 1 6 3 1 1 4 6 3 8 3 8 3 1 7 13 8 3 9 4 5 10 7 10 9 4 5 9 5 209
713 Support (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 0 0 0 1 0 1 0 0 0 0 1 0 0 2 5 1 3 0 2 2 14 4 9 12 7 17 33 40 50 208
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 1 5 0 7 6 2 8 5 5 4 6 2 4 2 3 2 4 3 6 1 6 4 3 2 5 1 4 4 7 2 4 4 7 3 7 11 7 4 8 2 6 11 8 9 205
053 Package Making 6 2 1 4 1 5 4 5 3 6 5 4 6 5 1 3 2 6 5 2 2 2 2 1 4 6 7 3 6 8 7 7 7 5 12 9 4 3 4 3 3 5 6 10 202
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 1 2 2 1 1 3 7 10 7 5 2 2 1 1 4 4 0 3 4 0 0 0 0 1 3 3 2 2 2 5 1 3 4 7 5 4 5 10 14 8 13 18 9 23 202
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 1 4 6 2 8 6 4 3 6 5 6 10 4 10 8 3 3 5 7 3 5 6 0 1 4 2 1 5 5 5 7 3 5 4 5 4 4 2 4 3 9 6 0 6 200
438 Semiconductor Device Manufacturing: Process 0 0 0 0 0 0 2 0 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 3 1 3 8 8 7 7 5 6 0 6 4 16 8 10 17 19 22 16 29 200
083 Cutting 3 0 9 12 6 5 3 5 3 3 6 8 4 7 2 5 2 6 2 1 0 2 4 4 6 2 2 3 10 4 1 1 2 5 5 5 3 4 3 3 5 9 6 14 195
604 Surgery (Medicators and Receptors) 0 0 0 1 3 4 2 2 1 2 5 1 2 4 1 1 2 1 0 1 1 2 3 4 4 4 6 6 7 6 7 17 9 7 4 9 7 6 9 6 12 10 9 7 195
714 Error Detection/Correction and Fault Detection/Recovery 0 0 0 0 0 0 1 1 3 1 1 0 2 0 0 0 0 1 0 0 0 1 1 3 3 0 1 2 4 3 2 3 6 7 5 12 19 10 13 11 27 18 10 23 194
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 2 0 2 2 1 1 2 0 0 2 1 3 1 1 1 1 3 3 1 1 1 3 1 0 3 5 1 5 9 12 14 18 15 6 12 7 5 7 9 10 9 4 6 190
280 Land Vehicles 1 1 4 1 2 0 0 0 0 4 4 1 3 3 0 4 4 4 1 1 3 3 5 5 2 3 7 5 6 3 2 8 5 8 5 7 6 8 8 11 6 10 14 11 189
139 Textiles: Weaving 7 8 9 8 8 11 11 5 11 6 11 2 4 2 2 3 1 3 5 3 7 8 5 6 2 1 2 0 5 1 1 1 2 1 2 2 4 7 5 2 2 0 0 1 187
606 Surgery (instruments) 0 0 1 0 1 0 0 0 1 2 1 1 5 0 1 1 0 0 1 0 0 1 2 0 3 1 5 1 4 4 5 9 7 9 11 8 10 17 10 12 13 16 10 11 184
345 Computer Graphics Processing and Selective Visual Display Systems 0 0 0 0 0 1 0 0 1 3 5 0 0 0 0 0 0 0 0 0 1 2 1 4 2 3 2 3 1 5 2 1 2 6 4 18 20 14 15 16 7 13 10 20 182
062 Refrigeration 0 0 1 3 1 4 2 0 2 3 3 1 2 3 2 3 1 1 2 3 2 3 3 1 0 2 1 1 5 2 6 6 5 4 4 2 8 10 20 21 12 9 9 5 178
715 DP: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing (Data Processing) 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 1 2 1 1 0 0 0 4 8 21 17 23 13 10 14 12 14 32 177
200 Electricity: Circuit Makers and Breakers 2 4 1 5 4 1 4 2 3 11 4 2 2 3 6 10 7 4 4 3 7 5 5 4 4 8 8 4 4 2 1 4 1 4 2 8 3 3 1 2 3 3 1 3 172
250 Radiant Energy 0 0 0 2 2 5 3 3 2 5 3 3 3 8 1 2 3 2 1 0 0 1 7 3 5 6 10 3 3 10 7 8 6 6 3 3 5 4 4 7 6 9 0 7 171
119 Animal Husbandry 0 0 1 0 2 1 2 1 2 4 1 1 3 0 0 1 2 5 7 3 2 3 4 2 3 3 5 8 5 4 8 7 4 5 5 7 7 5 7 8 15 4 5 6 168
700 DP: Generic Control Systems or Specific Applications (Data Processing) 0 0 0 0 0 0 0 0 1 0 1 0 0 3 0 0 0 1 0 0 0 3 2 1 3 2 6 4 3 1 4 4 4 9 7 13 9 13 11 18 8 14 8 15 168
056 Harvesters 5 3 4 2 1 4 4 7 4 5 5 8 6 6 6 5 3 3 0 1 2 2 0 1 1 2 2 3 2 1 3 6 1 1 1 3 3 7 7 4 4 8 7 14 167
222 Dispensing (apparatus and process) 1 5 4 3 2 1 3 1 5 4 0 3 2 3 5 2 1 3 1 3 2 1 1 1 2 1 0 6 6 7 3 9 6 6 5 6 15 7 4 5 6 7 4 3 165
473 Games Using Tangible Projectile 3 1 1 1 4 3 1 2 2 2 3 1 3 0 1 3 2 1 1 1 1 1 1 1 2 2 4 3 9 6 6 14 11 5 6 8 8 7 5 2 6 5 9 6 164
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 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 5 2 8 18 20 30 8 13 13 18 10 16 164
112 Sewing 3 0 0 2 5 2 7 6 3 6 3 2 4 1 5 5 1 5 1 2 5 4 6 12 9 5 4 3 3 1 3 3 4 6 6 3 4 2 4 3 3 2 1 2 161
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 2 0 0 0 1 1 3 6 3 4 2 3 2 1 2 3 7 4 6 3 8 7 12 16 12 25 23 161
711 Memory (Electrical Computers and Digital Processing Systems) 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 0 1 0 3 2 0 6 1 0 0 0 1 1 3 3 0 3 9 8 11 20 12 11 20 15 28 161
134 Cleaning and Liquid Contact with Solids 3 1 1 1 3 2 8 1 2 0 2 2 1 0 2 2 2 3 3 1 1 0 0 2 0 3 3 0 4 3 4 10 7 10 10 13 10 4 7 4 12 5 4 3 159
252 Compositions 0 0 2 0 2 1 3 1 3 4 1 0 2 6 2 1 4 0 2 1 1 0 4 4 3 3 4 3 4 6 2 8 5 6 9 9 11 10 5 2 7 6 4 5 156
126 Stoves and Furnaces 2 3 1 2 1 0 1 0 1 1 1 0 2 2 0 10 5 10 9 3 12 6 2 6 7 5 1 0 4 2 1 5 3 4 7 3 2 1 3 1 7 5 3 1 145
198 Conveyors: Power-Driven 4 4 5 1 7 0 2 0 7 5 4 3 4 3 2 1 1 3 2 1 0 1 3 2 1 3 8 1 1 3 3 7 2 0 4 6 4 5 4 3 5 7 6 5 143
426 Food or Edible Material: Processes, Compositions, and Products 0 0 2 1 3 5 1 1 1 8 4 4 2 2 4 4 4 1 2 3 0 2 1 3 4 2 5 7 3 0 7 5 5 2 7 0 2 4 6 5 6 7 4 3 142
033 Geometrical Instruments 0 3 3 0 2 1 1 0 0 5 3 2 0 0 1 2 1 6 1 1 2 0 2 1 2 4 2 2 6 1 2 2 3 2 9 6 3 4 4 9 2 11 10 12 133
123 Internal-Combustion Engines 0 0 1 0 3 0 0 0 0 0 0 2 3 2 1 2 4 3 5 4 3 0 10 7 4 1 1 1 7 4 3 4 2 5 2