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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

OKLAHOMA

( 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
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 61 77 103 91 103 96 78 54 69 36 51 53 34 39 39 40 18 24 50 34 45 63 54 53 84 38 51 47 43 40 46 69 50 49 24 35 39 41 86 35 64 62 60 128 2456
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 52 22 75 92 83 70 86 59 63 88 57 71 61 56 58 80 32 36 47 32 56 70 52 29 23 15 23 18 41 44 73 65 40 25 15 16 10 12 27 15 27 11 14 20 1961
585 Chemistry of Hydrocarbon Compounds 16 17 46 55 59 51 40 45 33 55 48 59 31 10 22 28 23 24 18 13 23 24 19 26 15 6 4 13 10 21 30 14 13 15 15 16 19 26 13 12 7 6 2 3 1045
532 Organic Compounds (includes Classes 532-570) 16 18 21 31 41 47 39 32 30 62 41 48 54 54 40 46 32 47 42 15 16 22 24 21 10 16 12 18 15 9 15 10 6 6 5 7 6 9 7 2 0 2 0 4 998
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 7 7 4 6 4 9 4 15 13 13 12 15 21 10 13 19 38 25 31 39 32 33 24 23 19 16 20 22 21 18 18 10 15 12 13 20 37 15 21 16 6 11 15 743
073 Measuring and Testing 39 30 28 34 22 22 28 18 14 20 22 26 19 16 17 19 11 14 25 12 17 23 18 27 16 10 11 12 14 9 18 20 10 7 4 5 6 6 7 7 4 3 7 5 702
137 Fluid Handling 18 12 15 15 20 17 14 24 28 12 19 16 15 13 7 11 8 6 22 16 9 16 14 11 13 18 23 18 15 16 19 13 6 16 6 9 8 8 15 14 6 5 3 5 594
208 Mineral Oils: Processes and Products 12 10 14 21 18 17 19 11 19 11 5 8 9 7 7 15 27 17 26 18 29 18 28 22 23 20 13 13 13 10 5 4 6 5 6 9 9 15 8 11 6 6 3 1 574
423 Chemistry of Inorganic Compounds 17 6 15 10 10 14 17 8 14 17 10 13 15 17 11 20 9 16 23 17 20 28 16 6 8 15 14 8 10 9 10 6 2 3 5 4 8 1 4 9 5 8 7 10 495
507 Earth Boring, Well Treating, and Oil Field Chemistry 13 3 8 9 6 11 6 4 9 6 8 7 11 12 9 11 10 14 15 16 9 27 25 13 11 9 7 5 8 3 5 3 12 10 10 8 8 5 7 3 11 13 7 6 413
367 Communications, Electrical: Acoustic Wave Systems and Devices 11 10 29 18 32 19 13 5 8 12 16 9 12 8 7 4 2 4 9 7 5 8 10 10 10 22 18 18 11 14 6 3 1 2 1 2 3 2 1 1 1 1 4 0 389
175 Boring or Penetrating the Earth 14 23 17 13 18 10 5 5 6 3 4 6 7 4 3 3 4 3 6 5 6 12 7 2 7 4 11 11 6 8 13 8 13 8 3 5 8 4 10 7 8 9 8 15 352
210 Liquid Purification or Separation 4 3 8 9 3 5 6 10 11 6 12 12 10 12 8 12 3 8 5 1 9 7 7 8 7 8 14 9 10 15 15 4 10 9 10 9 5 8 4 6 8 3 7 5 345
360 Dynamic Magnetic Information Storage or Retrieval 0 1 3 1 0 3 1 0 3 7 4 6 3 5 3 0 2 2 3 5 2 2 1 4 6 1 9 4 4 11 10 4 4 3 9 12 16 42 33 40 33 25 10 5 342
062 Refrigeration 10 12 26 32 17 20 6 8 8 3 5 5 11 5 4 3 7 5 4 3 4 6 9 4 3 5 1 4 2 3 2 5 4 6 6 1 2 3 3 1 6 4 4 5 287
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 3 5 13 13 3 4 8 7 16 7 8 3 9 8 9 5 3 11 5 12 6 10 9 9 9 7 7 10 4 6 8 1 5 6 0 3 1 6 3 2 5 5 5 7 286
052 Static Structures (e.g., Buildings) 2 3 9 13 8 1 6 4 8 6 5 9 8 7 5 10 2 5 6 8 6 6 16 15 10 7 5 6 6 6 3 7 4 4 5 8 4 7 5 3 8 4 2 2 274
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 15 7 8 13 12 7 13 17 9 11 4 7 10 8 6 13 4 5 3 2 9 6 7 1 9 7 4 6 3 7 6 5 5 4 3 1 4 1 2 1 2 4 1 2 274
242 Winding, Tensioning, or Guiding 4 2 1 4 2 4 7 3 9 6 8 5 3 5 1 2 3 12 4 8 12 10 11 5 9 8 6 6 4 8 7 6 2 3 5 13 14 13 10 7 6 1 1 0 260
405 Hydraulic and Earth Engineering 2 1 7 10 12 14 12 8 18 14 12 6 3 5 2 7 6 9 8 6 6 5 12 5 8 4 2 4 12 6 5 2 3 0 2 1 1 0 3 2 3 2 1 2 253
435 Chemistry: Molecular Biology and Microbiology 2 2 2 4 5 0 1 3 2 2 2 3 1 9 2 3 5 3 4 6 10 6 5 5 4 5 11 5 6 5 7 2 5 4 9 18 8 7 16 6 7 7 7 21 247
106 Compositions: Coating or Plastic 5 1 4 8 7 2 6 2 2 5 6 6 8 8 7 2 1 6 9 4 6 7 4 5 4 2 2 5 2 6 7 10 5 4 5 8 8 3 5 9 11 8 9 9 243
280 Land Vehicles 6 11 5 7 6 3 4 4 4 7 11 5 7 4 1 5 4 8 3 4 5 4 3 5 6 3 8 8 4 4 7 5 7 8 2 7 4 5 5 7 5 5 7 7 240
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 6 3 6 8 5 6 7 4 1 3 1 2 0 1 0 1 0 0 2 0 0 4 3 2 1 3 2 4 6 7 6 3 9 14 20 6 12 12 15 9 11 5 6 7 223
431 Combustion 2 4 14 6 6 3 4 2 3 6 11 7 9 7 8 10 8 6 7 2 4 7 8 6 6 4 4 5 2 3 5 4 1 2 1 3 3 2 2 4 6 8 5 3 223
414 Material or Article Handling 4 4 1 5 5 6 5 7 3 6 15 7 5 10 5 6 4 5 6 6 6 5 6 6 7 4 5 5 6 9 2 4 2 3 4 3 4 4 2 4 3 6 3 2 220
417 Pumps 7 12 10 8 4 8 4 1 7 6 6 6 1 3 3 4 6 7 4 3 5 8 5 12 6 5 6 6 4 3 6 4 1 3 1 3 2 7 5 4 2 2 3 1 214
203 Distillation: Processes, Separatory 1 7 9 18 18 8 13 5 3 9 4 6 4 3 8 8 9 7 3 5 5 5 8 4 2 0 1 7 6 11 1 0 1 0 0 1 2 2 0 1 0 1 1 0 207
251 Valves and Valve Actuation 3 6 8 3 9 22 15 15 20 12 8 6 2 4 3 4 2 4 1 4 3 4 3 3 2 3 3 1 0 1 3 2 3 0 3 3 6 2 3 0 2 1 1 3 206
250 Radiant Energy 12 10 14 12 5 5 3 5 8 7 3 8 4 5 4 8 4 4 2 1 3 5 2 1 2 3 4 4 4 5 4 5 1 4 0 1 3 0 1 2 4 1 2 7 192
340 Communications: Electrical 3 0 5 4 5 4 2 6 3 3 7 7 8 2 2 3 4 1 3 3 1 3 2 4 8 2 6 5 0 5 8 0 0 3 8 5 6 5 7 4 4 9 9 11 190
029 Metal Working 3 2 5 5 4 3 3 3 4 4 3 8 4 7 3 3 3 4 7 1 7 4 6 2 5 6 4 1 4 4 2 7 6 5 6 2 4 6 5 4 10 1 6 2 188
428 Stock Material or Miscellaneous Articles 3 2 3 3 2 5 4 10 7 6 4 6 6 7 5 3 4 5 4 6 0 2 5 4 4 6 6 3 9 8 4 5 3 4 8 5 4 1 2 3 0 4 0 1 186
043 Fishing, Trapping, and Vermin Destroying 4 2 4 3 2 1 3 5 1 1 5 5 4 7 4 3 4 1 2 1 0 3 2 5 8 8 10 6 3 6 7 6 3 4 2 2 9 3 5 5 6 5 5 2 177
181 Acoustics 3 6 3 12 12 16 7 1 4 3 4 2 4 4 6 3 6 6 1 9 4 5 3 4 8 4 10 1 4 2 6 2 0 1 0 0 0 4 1 1 1 0 0 0 173
095 Gas Separation: Processes 5 8 7 13 6 4 6 12 4 8 4 5 6 4 4 4 3 4 7 7 1 6 7 4 6 3 3 2 0 1 1 0 2 1 1 0 1 2 4 0 1 2 1 1 171
324 Electricity: Measuring and Testing 9 4 11 9 7 7 4 7 11 5 4 5 5 1 4 3 2 3 9 1 1 2 2 2 5 4 3 1 3 3 3 2 1 2 2 3 1 0 2 4 1 0 2 6 166
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 4 5 7 4 2 4 3 3 7 3 5 11 4 2 3 3 2 2 1 3 0 3 5 3 4 2 3 5 5 6 7 2 3 2 2 9 7 1 1 3 1 0 1 0 153
220 Receptacles 4 0 4 7 12 9 5 6 5 6 4 7 5 1 0 2 2 3 2 2 3 5 1 6 2 1 4 3 3 6 4 6 5 4 3 1 1 1 2 1 1 0 1 2 152
165 Heat Exchange 3 3 7 2 3 3 1 3 6 1 4 3 1 2 8 3 2 2 5 4 4 6 4 8 9 2 6 4 7 1 4 2 5 2 1 5 1 2 3 2 1 0 1 1 147
702 DP: Measuring, Calibrating, or Testing (Data Processing) 1 1 2 3 1 0 0 1 1 3 3 1 1 2 0 0 2 1 2 1 0 2 2 4 3 10 7 7 2 2 6 4 0 2 0 5 5 5 10 8 11 11 6 9 147
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 10 3 6 8 3 6 8 16 12 13 7 5 7 5 3 6 1 0 1 1 0 1 3 1 1 2 2 1 2 1 2 1 0 0 1 0 1 0 1 2 0 1 0 0 144
204 Chemistry: Electrical and Wave Energy 4 4 5 6 7 10 4 7 5 11 7 6 4 3 1 5 3 6 2 2 5 2 1 7 1 1 2 1 1 2 0 0 0 2 2 1 1 0 2 0 1 0 1 0 135
285 Pipe Joints or Couplings 1 2 5 5 5 6 7 5 3 2 2 3 3 4 0 6 1 1 2 4 1 1 4 5 5 1 5 1 1 2 3 4 4 3 2 3 3 3 2 1 3 2 4 1 131
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 0 2 5 3 9 5 7 13 24 4 8 6 5 5 3 2 6 3 2 0 2 1 1 1 2 1 1 0 2 0 0 0 0 1 0 1 0 1 0 1 0 0 1 128
128 Surgery (includes Class 600) 0 1 1 0 4 1 2 3 3 2 3 2 3 0 1 1 0 0 0 0 1 1 0 5 0 4 3 8 10 3 3 5 5 5 7 5 2 9 3 4 3 6 2 3 124
366 Agitating (e.g., of articles and materials) 0 1 5 4 5 3 4 1 3 1 2 3 0 3 2 2 7 2 2 1 2 6 4 3 2 3 7 10 6 2 5 2 3 3 0 0 5 1 1 2 1 2 0 3 124
248 Supports (e.g., for holding articles, etc.) 0 3 3 1 6 3 1 2 4 1 3 4 2 0 1 7 0 1 1 2 2 7 5 2 5 0 3 2 9 6 2 5 2 0 4 1 3 3 3 3 4 3 1 3 123
060 Power Plants 11 6 3 5 0 1 3 1 2 2 5 8 4 6 6 4 2 1 4 2 1 1 5 0 1 2 2 2 1 2 0 0 1 2 3 3 1 4 0 1 4 2 1 5 120
015 Brushing, Scrubbing, and General Cleaning 3 1 5 5 4 4 4 3 7 7 4 4 1 3 1 2 0 3 6 4 1 2 0 1 5 5 2 3 1 3 2 3 3 3 1 0 2 4 2 1 0 0 1 3 119
451 Abrading 2 2 0 1 2 2 7 2 4 0 1 1 3 4 1 1 2 3 3 4 5 1 3 1 2 4 3 4 4 7 3 2 2 6 6 3 5 3 2 2 1 2 0 1 117
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separant Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 2 8 4 8 2 3 2 7 2 6 9 9 7 4 3 4 3 3 2 6 3 1 6 1 2 3 1 0 0 0 1 0 1 0 0 0 1 1 0 0 1 0 0 0 116
427 Coating Processes 3 0 2 5 2 1 4 4 2 8 2 3 8 4 1 2 0 7 2 4 0 6 3 2 5 5 1 5 5 4 1 6 2 0 1 0 0 1 1 0 0 1 1 1 115
123 Internal-Combustion Engines 2 1 3 3 2 1 1 2 3 3 3 3 0 5 4 5 1 0 2 4 6 1 5 2 4 0 4 3 6 5 1 1 1 1 6 2 3 1 3 2 3 2 2 2 114
114 Ships 8 1 5 2 2 6 7 1 4 12 3 3 3 2 2 3 0 1 0 1 0 2 2 1 4 2 2 3 5 1 3 0 1 3 1 2 4 2 2 0 1 2 2 1 112
033 Geometrical Instruments 5 3 5 4 3 4 2 1 0 4 3 0 5 1 1 4 1 3 3 4 2 4 1 6 4 2 2 1 4 4 2 3 2 3 1 0 0 3 4 3 3 0 0 0 110
134 Cleaning and Liquid Contact with Solids 1 2 1 4 1 4 4 4 2 0 2 3 3 3 1 2 1 2 2 2 2 7 4 3 5 1 5 1 5 5 1 2 0 0 2 1 3 3 2 1 2 3 0 1 103
119 Animal Husbandry 0 3 0 2 2 0 3 0 5 1 1 3 1 2 0 5 1 4 1 3 1 0 6 2 2 3 0 3 1 1 2 4 4 5 3 1 4 2 2 5 5 2 5 2 102
310 Electrical Generator or Motor Structure 0 3 2 2 1 2 1 4 4 4 1 3 1 0 1 1 1 1 2 4 3 2 2 0 2 0 4 1 2 3 5 5 1 2 0 3 3 6 9 3 1 2 4 0 101
209 Classifying, Separating, and Assorting Solids 1 0 2 0 1 1 3 1 1 0 2 3 2 1 0 0 1 2 2 3 4 6 13 6 6 2 3 3 2 1 1 0 2 0 2 0 4 3 2 3 2 3 1 1 96
219 Electric Heating 3 1 3 2 1 0 7 2 3 6 5 2 3 1 1 0 1 1 1 2 3 1 2 2 1 3 4 6 0 2 0 1 0 2 2 1 6 3 1 2 0 1 5 3 96
222 Dispensing (apparatus and process) 9 6 7 4 2 3 2 2 3 0 0 3 2 1 3 1 1 1 3 5 0 3 1 2 1 1 1 3 2 2 0 1 0 3 3 2 3 1 4 1 0 1 1 0 94
138 Pipes and Tubular Conduits 3 4 5 1 6 2 4 2 4 2 4 4 2 0 2 1 4 2 3 0 7 1 1 0 4 1 1 0 1 1 1 1 2 2 0 3 4 2 2 0 2 0 1 1 93
252 Compositions 1 1 2 3 2 2 0 0 3 4 1 3 1 5 4 5 5 1 0 3 1 4 5 3 2 1 4 1 3 5 2 1 0 1 4 0 0 0 0 1 1 0 3 5 93
433 Dentistry 2 0 0 2 1 1 1 1 1 3 1 0 1 2 0 0 1 1 5 0 1 4 1 1 0 5 1 3 2 6 3 6 3 2 1 7 5 3 6 1 2 1 2 3 92
436 Chemistry: Analytical and Immunological Testing 1 1 0 1 2 1 4 7 2 4 4 3 1 4 6 3 1 2 1 3 0 3 1 5 2 1 0 2 1 0 4 2 2 0 1 3 3 0 1 2 2 4 0 2 92
473 Games Using Tangible Projectile 5 2 7 1 2 1 0 2 2 0 1 1 3 1 0 0 0 2 0 1 1 1 0 1 0 1 4 4 3 4 1 1 4 5 3 3 2 4 5 2 0 2 2 1 85
206 Special Receptacle or Package 1 1 0 2 1 5 2 0 1 3 2 2 4 4 1 2 3 0 2 0 3 1 2 1 3 1 2 2 1 2 4 1 0 4 3 3 6 5 0 0 0 0 1 3 84
044 Fuel and Related Compositions 1 0 1 9 0 4 1 3 1 3 0 0 2 1 2 3 1 2 10 7 8 5 6 2 2 3 1 2 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 83
700 DP: Generic Control Systems or Specific Applications (Data Processing) 1 0 0 2 1 0 0 1 4 1 1 1 0 1 2 5 1 1 5 5 5 3 6 1 3 3 1 4 5 0 1 3 2 2 2 3 0 0 1 1 0 3 1 1 83
254 Implements or Apparatus for Applying Pushing or Pulling Force 1 5 1 2 3 0 1 1 0 1 1 4 2 1 4 3 0 2 2 1 1 1 4 2 2 3 4 1 3 0 2 0 0 0 1 1 1 0 5 3 4 0 3 4 80
072 Metal Deforming 2 2 1 1 1 0 1 2 5 2 1 6 1 5 4 1 3 1 1 3 1 3 2 1 3 1 1 0 0 1 0 1 1 1 3 2 2 3 3 3 1 0 3 0 79
096 Gas Separation: Apparatus 3 0 3 5 6 12 3 2 4 3 2 2 1 1 2 2 0 4 1 1 2 5 1 2 1 2 0 1 1 2 1 0 0 1 0 0 0 0 1 0 0 1 0 1 79
296 Land Vehicles: Bodies and Tops 0 1 0 1 1 1 0 2 3 3 0 1 3 2 1 1 0 2 1 1 1 1 1 1 1 1 5 2 3 2 2 1 2 2 3 4 1 4 7 0 5 1 1 3 78
277 Seal for a Joint or Juncture 4 4 4 5 2 3 2 4 2 0 3 0 1 1 0 0 1 1 5 1 3 7 0 5 0 1 0 0 0 1 1 3 2 2 0 1 1 0 4 0 1 0 1 1 77
440 Marine Propulsion 0 1 0 0 0 0 0 1 2 2 0 4 1 1 0 0 0 1 0 3 1 1 1 0 0 0 0 4 1 0 2 9 5 1 2 2 2 4 2 9 4 3 4 2 75
081 Tools 2 1 3 2 1 1 0 1 2 3 4 6 11 3 1 2 1 4 1 0 1 1 1 1 0 1 1 3 0 2 0 0 0 3 0 1 0 1 3 2 0 0 2 1 73
239 Fluid Sprinkling, Spraying, and Diffusing 1 1 0 2 2 3 1 6 4 1 2 2 2 1 1 3 0 1 0 0 1 2 1 1 1 2 0 0 3 5 1 2 1 2 0 3 1 2 0 1