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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

LOUISIANA

( 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) 41 44 39 45 44 36 37 23 23 43 35 29 30 22 17 18 13 24 18 17 22 32 60 40 26 35 47 42 65 51 47 45 24 25 24 34 42 23 28 16 15 11 6 10 1368
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 12 8 26 16 14 11 19 15 18 9 18 18 19 20 20 9 7 9 15 9 8 28 16 16 27 12 23 20 21 23 20 18 21 15 13 25 24 27 35 29 21 13 24 26 797
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 14 6 11 22 21 16 11 18 9 23 6 10 13 9 9 18 9 4 9 9 10 18 19 16 25 16 13 45 27 25 10 9 13 13 7 18 5 10 14 6 10 7 4 4 591
208 Mineral Oils: Processes and Products 7 7 6 23 16 17 12 13 13 10 11 19 11 15 21 23 18 8 20 16 18 20 24 16 5 11 10 12 13 7 8 13 10 3 4 6 19 10 12 5 18 8 8 3 549
210 Liquid Purification or Separation 0 2 1 0 7 1 3 6 5 3 10 7 2 4 4 3 7 7 10 9 9 8 7 9 15 14 22 8 19 19 17 18 17 21 15 15 18 18 25 10 8 7 11 6 427
405 Hydraulic and Earth Engineering 9 4 5 5 10 10 8 10 12 16 11 11 6 10 9 11 2 6 10 2 7 6 12 12 14 7 8 12 13 9 12 9 6 11 8 10 14 13 11 14 8 17 5 13 418
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 2 0 0 3 1 2 1 0 2 1 0 2 2 2 1 18 3 5 3 4 6 5 7 6 7 9 23 12 4 14 15 9 10 13 9 24 17 13 17 26 24 16 14 16 368
423 Chemistry of Inorganic Compounds 7 6 12 10 13 8 9 10 4 15 12 17 14 13 12 7 10 8 12 7 12 19 15 11 10 11 4 7 6 8 8 3 1 4 1 1 5 3 2 4 0 1 1 0 343
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 5 5 2 10 8 2 5 5 10 3 4 8 10 8 7 13 10 18 4 8 15 11 7 6 2 6 13 13 8 13 14 5 3 6 4 10 9 5 3 6 8 1 2 316
073 Measuring and Testing 8 2 3 4 6 5 3 7 3 5 8 13 6 10 10 8 4 7 7 4 9 14 9 9 4 5 10 4 6 5 6 8 8 7 5 8 5 2 2 5 6 10 10 16 296
175 Boring or Penetrating the Earth 6 2 8 8 9 7 2 4 6 7 6 5 4 3 4 2 2 7 8 5 5 7 8 9 12 4 7 9 11 5 4 8 4 8 4 6 13 14 17 10 6 8 7 5 296
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 9 6 6 11 8 12 12 17 20 20 19 13 24 19 7 8 0 6 8 3 2 6 1 3 2 6 3 3 0 1 2 2 1 0 1 0 0 1 0 0 0 0 0 0 262
137 Fluid Handling 4 4 4 1 4 7 5 7 8 3 8 4 3 2 2 10 8 14 8 4 8 4 6 8 8 3 6 6 6 6 8 7 2 7 7 4 6 8 12 6 4 2 2 2 248
585 Chemistry of Hydrocarbon Compounds 11 7 4 10 11 15 4 7 7 16 7 6 7 3 3 5 1 1 1 1 1 0 3 3 2 4 2 15 7 6 6 5 18 6 7 10 5 4 2 3 7 2 1 0 246
114 Ships 1 9 2 3 4 5 1 5 4 6 6 9 12 9 8 5 3 4 4 7 4 3 6 6 6 2 8 5 5 7 2 2 0 6 5 1 3 8 11 7 2 5 0 3 214
206 Special Receptacle or Package 4 2 3 7 4 3 3 2 8 6 6 3 5 6 4 1 3 4 2 2 4 4 3 3 6 7 11 4 4 6 10 5 1 1 4 2 5 7 2 4 1 1 5 2 180
128 Surgery (includes Class 600) 0 0 1 1 1 3 1 1 1 1 3 1 5 2 2 2 2 3 7 4 1 2 3 3 1 2 5 4 7 6 7 7 7 10 3 7 7 4 10 7 14 3 4 2 167
043 Fishing, Trapping, and Vermin Destroying 3 3 2 1 1 1 1 0 1 3 1 4 1 3 6 7 5 4 1 3 0 2 6 3 6 1 5 4 10 3 2 2 7 5 3 2 7 9 5 7 6 6 3 4 159
198 Conveyors: Power-Driven 0 0 2 2 5 1 0 2 3 1 1 1 2 1 1 3 6 3 0 0 1 0 1 0 2 2 6 9 6 10 2 5 2 3 2 2 4 4 5 11 11 12 9 12 155
029 Metal Working 3 1 1 3 4 3 3 2 4 5 4 3 4 4 1 2 3 3 6 0 2 5 1 2 6 3 5 2 3 5 3 7 3 4 2 3 1 6 2 3 6 1 0 3 137
414 Material or Article Handling 1 3 4 2 1 4 6 5 3 3 4 4 7 1 4 7 0 2 2 3 3 4 3 3 3 2 4 5 5 0 5 4 6 0 2 0 4 2 1 1 3 7 3 1 137
435 Chemistry: Molecular Biology and Microbiology 0 0 0 0 0 1 1 1 2 2 3 1 0 0 1 1 1 0 3 0 3 2 1 2 4 3 5 5 4 5 4 6 4 11 8 10 4 7 7 9 5 3 3 4 136
428 Stock Material or Miscellaneous Articles 2 0 1 0 1 3 1 3 7 8 0 4 2 4 3 0 0 1 3 2 2 1 1 2 2 4 8 3 7 5 6 4 1 5 5 4 5 1 0 3 3 3 2 4 126
081 Tools 0 3 2 0 2 1 1 1 1 2 1 1 1 1 0 4 1 1 2 1 1 3 4 4 5 3 5 4 3 5 4 3 4 2 1 4 6 6 6 4 3 4 1 7 118
052 Static Structures (e.g., Buildings) 1 2 3 2 9 2 2 2 2 3 1 3 4 3 3 3 1 2 1 1 2 2 3 2 5 0 2 1 2 1 2 3 0 2 4 2 5 3 4 9 7 2 2 2 117
452 Butchering 4 3 3 3 5 6 2 0 5 7 3 4 5 2 2 3 1 4 0 1 3 3 3 1 1 6 2 2 3 2 2 3 0 3 0 1 3 7 5 2 0 0 0 1 116
606 Surgery (instruments) 1 0 0 0 0 0 0 0 1 2 0 1 1 1 2 1 0 0 1 0 0 0 0 3 1 4 1 2 3 5 3 3 3 6 5 5 6 7 13 11 8 4 5 7 116
182 Fire Escape, Ladder, or Scaffold 0 0 0 0 1 2 1 1 2 1 1 5 2 3 0 0 1 3 4 5 2 2 4 3 4 2 2 5 2 7 3 6 6 2 0 5 3 3 3 4 2 5 2 3 112
056 Harvesters 11 1 1 5 2 7 2 1 8 3 3 0 2 3 2 2 2 1 0 1 2 6 3 1 1 2 3 2 3 2 3 1 7 2 0 2 0 2 1 2 1 3 3 1 110
280 Land Vehicles 2 2 0 1 1 2 1 2 1 0 1 2 4 5 1 1 0 1 1 2 2 0 3 2 3 4 3 2 5 5 5 2 4 1 3 4 6 5 5 4 2 2 4 4 110
604 Surgery (Medicators and Receptors) 1 1 0 0 1 1 1 0 0 0 0 0 3 0 1 1 0 2 2 3 4 0 1 2 1 2 1 4 0 4 7 3 3 7 4 7 6 3 6 8 4 6 1 4 105
294 Handling: Hand and Hoist-Line Implements 0 1 2 0 0 0 1 3 2 1 1 1 3 3 3 1 2 1 3 4 5 2 4 2 1 0 6 0 1 2 3 2 3 3 9 7 3 5 3 4 1 0 1 3 102
427 Coating Processes 2 1 5 5 0 4 6 5 9 8 0 1 8 5 5 4 1 2 1 1 0 0 1 1 0 2 4 2 4 1 1 1 2 1 5 2 1 0 0 0 0 0 0 0 101
134 Cleaning and Liquid Contact with Solids 2 0 0 0 0 0 4 3 1 0 0 3 2 3 0 1 2 7 3 0 1 2 1 4 0 1 1 2 0 1 5 6 1 3 7 5 7 5 1 2 4 3 1 1 95
033 Geometrical Instruments 4 0 3 3 1 1 5 2 1 0 1 0 3 1 1 7 1 4 3 1 4 2 3 2 4 0 2 1 1 4 1 2 1 2 0 2 1 2 2 4 1 1 5 4 93
002 Apparel 0 1 1 4 0 2 0 1 4 0 0 1 0 4 2 2 1 1 1 1 2 3 3 3 1 3 3 3 2 4 5 3 2 0 2 3 2 3 7 5 0 1 2 3 91
252 Compositions 1 0 0 3 0 0 3 3 3 3 1 4 2 3 0 1 0 1 2 1 5 0 1 0 0 3 3 2 6 3 3 3 2 4 5 1 3 4 2 2 4 2 1 1 91
285 Pipe Joints or Couplings 2 1 1 0 1 2 4 2 2 1 1 1 2 2 3 3 2 3 2 3 1 3 4 2 5 2 3 3 1 1 3 0 1 1 1 2 1 5 3 4 1 2 0 4 91
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 0 1 1 1 0 0 4 2 0 0 0 0 0 0 0 0 2 6 2 2 2 4 3 3 1 4 5 0 2 1 1 1 3 2 3 3 6 6 10 3 5 89
062 Refrigeration 1 2 2 0 1 1 1 1 2 0 2 1 1 2 1 0 0 4 2 0 3 5 4 0 2 1 2 1 4 2 1 3 5 4 0 2 5 5 5 3 5 0 1 1 88
222 Dispensing (apparatus and process) 2 0 0 4 3 3 2 2 0 1 2 5 2 4 2 2 1 2 3 0 0 2 1 2 1 3 2 4 2 3 0 0 2 3 2 2 4 1 1 3 1 1 3 2 85
473 Games Using Tangible Projectile 1 1 1 0 1 1 0 0 1 2 1 1 5 2 1 2 1 1 1 1 1 2 0 3 1 0 1 5 7 1 4 5 5 2 7 2 1 3 2 3 1 2 0 2 84
426 Food or Edible Material: Processes, Compositions, and Products 1 0 2 3 2 1 2 3 3 1 0 4 0 1 1 0 1 0 0 2 1 0 4 0 0 2 5 3 0 6 3 1 1 0 3 4 1 5 5 2 4 2 2 1 82
248 Supports (e.g., for holding articles, etc.) 1 0 2 1 2 0 2 0 0 2 1 1 2 2 0 0 1 0 0 0 1 4 2 3 3 3 3 5 0 5 2 4 1 3 2 3 3 1 6 1 1 1 4 3 81
440 Marine Propulsion 2 1 1 0 0 0 2 2 1 2 0 4 1 2 0 3 0 0 0 1 1 3 1 2 5 2 5 4 1 0 3 2 3 1 0 5 4 4 2 4 1 1 3 2 81
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 0 1 2 3 7 6 3 4 8 8 7 5 5 2 3 1 3 3 0 1 1 1 1 0 1 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 80
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 1 0 1 0 3 2 0 1 0 0 0 1 1 1 0 1 1 1 1 1 2 1 0 3 1 4 3 4 6 5 2 2 5 5 2 2 9 3 2 1 0 0 2 80
099 Foods and Beverages: Apparatus 2 3 2 0 0 0 1 1 1 0 1 1 0 5 1 0 0 0 1 1 0 1 2 2 1 0 2 6 1 0 1 4 3 3 2 5 2 6 3 5 4 3 1 2 79
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 6 1 1 1 0 1 0 0 2 3 3 5 1 1 1 1 0 0 0 1 0 0 4 0 0 0 0 0 5 11 5 1 0 2 1 2 2 5 4 3 1 2 0 3 79
119 Animal Husbandry 2 1 2 3 1 1 0 1 3 2 0 2 2 1 4 0 0 0 0 2 0 2 0 0 0 1 2 6 1 4 3 2 2 4 4 4 1 3 3 1 1 1 1 3 76
030 Cutlery 0 0 1 1 1 0 0 2 2 0 1 3 2 2 1 2 0 1 2 0 0 1 2 0 1 3 4 4 4 0 0 7 3 2 3 2 3 2 3 6 1 0 1 1 74
015 Brushing, Scrubbing, and General Cleaning 0 0 0 0 1 0 4 2 1 2 3 0 2 4 1 1 0 1 0 1 4 2 1 0 1 1 3 0 1 4 3 6 0 4 3 0 3 5 2 2 1 1 2 1 73
204 Chemistry: Electrical and Wave Energy 1 1 1 2 1 1 5 1 2 1 2 2 0 4 4 0 1 4 3 2 2 2 1 8 2 1 1 1 0 1 1 2 2 1 0 1 2 1 3 0 1 0 0 1 72
229 Envelopes, Wrappers, and Paperboard Boxes 2 0 4 1 3 0 2 1 0 2 0 1 3 1 3 6 2 1 3 4 0 1 1 2 4 2 3 5 3 3 0 1 0 1 0 0 1 1 1 1 0 0 2 0 71
251 Valves and Valve Actuation 0 0 0 1 0 0 3 4 0 2 1 0 1 3 1 1 5 2 0 3 2 2 3 2 5 0 1 1 3 0 4 1 0 2 3 1 3 2 3 1 2 1 1 1 71
340 Communications: Electrical 1 0 0 2 0 0 1 0 1 2 1 0 2 1 0 0 3 0 2 0 0 0 1 3 3 0 0 2 3 1 1 4 2 1 4 3 4 8 4 1 1 2 2 5 71
004 Baths, Closets, Sinks, and Spittoons 2 0 0 1 1 1 3 2 2 1 0 1 2 1 4 0 0 2 0 1 0 1 1 1 1 2 1 4 3 0 0 5 2 2 6 5 0 4 0 2 0 2 2 2 70
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 0 0 1 0 1 3 0 0 2 5 2 0 3 1 1 0 2 1 0 4 1 1 1 0 3 5 2 1 3 1 2 1 2 1 2 1 1 2 1 4 3 3 0 0 67
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 0 2 1 1 1 1 2 2 1 2 1 2 1 1 0 2 2 0 3 1 0 0 1 2 0 6 3 4 5 1 1 5 2 2 1 1 3 2 0 1 1 0 0 67
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 2 1 1 2 1 3 2 2 1 0 0 0 0 2 1 1 0 0 3 2 3 1 2 2 0 1 3 1 3 2 4 5 4 0 3 1 1 0 2 0 0 1 2 1 66
123 Internal-Combustion Engines 0 0 2 0 0 0 0 0 0 0 0 1 3 2 1 1 0 1 1 2 2 0 3 4 4 2 4 2 1 2 3 2 1 4 1 2 0 2 1 2 3 2 1 1 63
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 0 0 0 0 0 0 1 0 2 0 0 0 0 3 1 0 1 2 2 0 1 1 0 3 2 1 4 1 2 2 2 0 2 5 3 6 2 3 3 2 1 3 1 1 63
060 Power Plants 0 1 0 1 0 0 0 0 0 2 1 3 3 2 0 3 1 1 1 0 4 0 1 0 4 3 1 3 0 3 1 0 1 1 0 4 2 2 2 4 2 3 2 0 62
417 Pumps 0 2 0 0 3 1 0 2 2 0 1 3 1 0 1 0 0 3 0 5 0 0 2 2 0 2 1 0 1 3 2 1 2 3 0 1 2 3 2 5 2 2 0 1 61
273 Amusement Devices: Games 2 0 0 0 2 0 1 0 1 4 2 3 2 2 2 2 1 2 0 3 1 0 1 2 1 2 1 1 2 3 1 3 0 1 2 2 2 1 1 0 1 1 1 1 60
044 Fuel and Related Compositions 1 1 3 1 1 0 4 0 1 2 0 0 3 1 0 0 0 0 0 0 0 6 11 12 1 0 0 0 1 0 0 0 1 1 1 2 0 1 2 0 2 0 0 0 59
053 Package Making 1 1 3 0 2 2 1 1 2 3 2 2 1 1 4 1 0 0 1 0 0 1 2 7 3 3 3 0 0 0 0 0 0 2 1 0 0 1 1 1 1 2 2 1 59
106 Compositions: Coating or Plastic 0 1 2 4 3 3 1 0 2 0 1 4 1 2 2 1 0 2 3 1 1 3 1 0 2 0 0 2 0 2 2 0 1 1 1 1 1 1 3 1 0 1 1 0 58
209 Classifying, Separating, and Assorting Solids 0 1 0 1 5 3 1 1 2 1 0 2 2 0 0 0 1 2 1 1 0 0 2 0 1 0 0 1 0 1 3 0 2 0 1 2 1 3 5 2 3 3 3 1 58
434 Education and Demonstration 1 1 1 2 1 1 0 0 2 1 0 2 0 4 0 1 1 1 4 1 0 1 1 0 2 3 3 1 1 0 3 1 2 1 0 4 3 1 0 1 1 3 0 0 56
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 1 1 1 2 1 1 1 3 3 2 1 2 0 1 2 0 2 2 0 1 0 2 0 0 0 0 2 1 2 4 1 3 0 2 3 3 0 1 1 0 1 1 0 54
241 Solid Material Comminution or Disintegration 0 0 1 0 0 0 0 0 3 0 1 1 1 0 0 0 2 0 1 0 1 1 1 1 2 0 0 0 2 2 3 4 1 4 1 3 4 3 3 2 1 2 1 0 52
433 Dentistry 1 0 0 0 0 0 4 0 2 0 1 0 0 0 0 0 1 2 1 1 3 2 2 1 2 2 1 1 3 3 0 1 0 2 3 3 4 2 1 2 0 0 0 1 52
172 Earth Working 1 1 3 1 2 2 0 1 1 1 0 3 0 0 1 0 2 0 1 2 1 0 0 3 2 0 1 0 1 0 0 0 2 2 2 2 4 2 2 2 1 1 0 1 51
482 Exercise Devices 0 2 0 2 0 0 2 1 1 0 2 1 0 0 0 0 0 0 1 2 1 2 0 2 2 1 4 2 4 1 1 1 2 3 0 2 2 3 0 1 0 1 0 1 50
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 4 0 2 1 2 0 2 2 3 3 0 2 1 1 2 2 2 2 2 6 1 0 3 1 2 50
005 Beds 0 1 1 0 2 0 1 3 0 1 0 0 0 2 0 1 1 1 0 0 0 1 2 1 5 1 2 2 2 1 1 0 0 2 1 2 1 3 0 1 2 2 1 1 48
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 1 1 1 2 1 2 2 1 1 0 3 3 0 0 1 2 1 1 0 1 3 1 0 3 2 1 1 1 2 0 0 2</