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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

RHODE ISLAND

( 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
367 Communications, Electrical: Acoustic Wave Systems and Devices 0 0 0 3 2 0 3 1 0 1 6 4 4 3 5 4 1 5 2 1 1 4 0 1 3 2 1 5 4 10 11 9 8 11 8 14 9 15 10 9 9 12 6 12 219
114 Ships 2 2 2 0 2 2 1 1 1 1 2 3 3 0 0 0 0 0 1 1 2 4 3 3 3 2 3 4 8 6 5 7 14 11 24 16 5 10 8 13 7 9 14 8 213
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 2 4 2 2 2 4 4 8 2 14 7 7 2 1 0 3 0 0 0 2 1 1 1 0 0 2 5 10 7 3 6 5 3 4 2 6 1 6 8 4 11 9 12 16 189
428 Stock Material or Miscellaneous Articles 3 0 3 7 6 3 2 4 8 7 5 5 9 5 0 0 3 1 2 0 1 2 2 2 0 1 1 0 2 4 9 6 1 1 4 4 8 12 9 8 10 14 8 3 185
073 Measuring and Testing 2 2 2 2 2 9 3 2 3 2 6 2 1 2 3 3 2 5 1 2 3 5 2 3 4 4 1 1 3 4 7 4 6 6 6 12 3 12 3 8 7 5 6 7 178
242 Winding, Tensioning, or Guiding 6 7 7 16 16 12 16 10 14 15 10 10 2 4 6 1 1 2 0 1 1 1 1 1 1 0 1 0 0 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 166
473 Games Using Tangible Projectile 2 2 2 0 0 0 0 0 2 2 0 2 1 2 1 2 2 1 1 1 1 0 2 2 0 0 2 2 1 1 1 1 4 2 3 2 3 4 1 5 18 30 26 31 165
439 Electrical Connectors 1 5 4 8 4 4 4 1 2 7 7 7 4 6 3 3 0 3 3 0 4 0 4 1 4 2 8 1 2 3 6 3 1 0 3 3 2 3 7 6 5 6 2 7 159
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 1 1 0 2 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 1 1 4 2 3 2 1 1 1 2 5 1 3 3 5 9 8 11 20 8 13 10 6 13 12 152
532 Organic Compounds (includes Classes 532-570) 0 2 3 9 5 7 10 9 5 5 3 4 4 0 3 2 2 2 4 0 3 0 3 0 0 4 1 4 3 3 5 2 6 3 2 3 5 2 2 1 4 2 1 3 141
029 Metal Working 7 7 3 5 6 3 0 4 4 3 2 5 0 2 5 4 3 3 2 2 2 2 2 2 2 3 1 1 5 1 4 3 3 3 0 2 4 1 3 4 2 4 1 5 130
024 Buckles, Buttons, Clasps, Etc. 3 7 5 6 6 3 5 4 3 6 5 1 3 5 3 0 1 3 3 4 4 3 3 1 0 3 2 2 3 6 1 1 3 2 5 3 2 1 2 2 0 0 0 0 125
057 Textiles: Spinning, Twisting, and Twining 3 6 2 12 6 9 14 11 9 15 9 8 3 3 2 2 0 1 3 2 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 123
206 Special Receptacle or Package 3 4 1 4 3 3 1 3 2 4 1 2 2 4 1 4 2 1 0 2 0 2 2 1 3 5 3 6 2 6 3 1 1 3 5 2 3 2 3 3 2 1 2 1 109
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 0 0 1 0 1 0 1 0 0 1 0 0 0 0 0 3 1 1 1 0 1 1 1 5 0 4 6 4 9 3 14 19 1 4 4 0 3 2 2 4 4 3 2 3 109
361 Electricity: Electrical Systems and Devices 1 0 1 3 4 3 0 2 1 2 2 3 3 2 0 2 0 1 1 1 0 1 1 1 3 3 0 1 3 3 2 3 4 1 0 9 5 6 7 4 3 8 3 3 106
210 Liquid Purification or Separation 0 3 2 4 3 1 2 3 4 3 0 2 0 0 0 1 3 5 2 1 2 2 2 1 1 3 3 0 3 9 1 2 0 1 4 4 3 3 6 0 1 3 5 3 101
137 Fluid Handling 4 1 2 2 4 8 2 5 7 0 2 2 4 4 1 4 1 3 0 1 1 1 2 1 1 0 0 1 3 0 1 1 0 2 6 5 6 3 1 1 0 2 3 1 99
200 Electricity: Circuit Makers and Breakers 3 1 8 3 4 2 5 3 3 3 4 6 2 6 5 2 3 1 1 1 0 0 0 1 1 2 3 2 3 0 2 2 0 3 0 4 1 1 4 0 1 1 2 0 99
604 Surgery (Medicators and Receptors) 1 0 0 0 0 0 2 1 1 0 2 0 1 2 0 0 0 2 2 1 1 1 4 3 4 5 0 4 7 6 4 5 4 5 4 10 5 4 2 2 1 1 0 0 97
063 Jewelry 3 2 5 4 2 4 3 2 2 2 2 1 1 5 3 2 0 3 2 0 0 1 1 3 3 4 2 4 4 5 1 2 2 6 2 1 1 2 0 1 2 1 0 0 96
222 Dispensing (apparatus and process) 2 2 7 3 4 0 5 1 3 5 6 3 8 2 2 4 1 4 1 2 1 0 0 2 0 1 2 3 1 1 3 2 3 0 2 0 0 1 1 0 0 3 4 1 96
446 Amusement Devices: Toys 1 0 0 0 1 0 5 0 1 1 2 2 0 0 2 1 1 1 4 0 0 1 1 0 0 2 1 0 3 4 5 1 4 5 3 2 2 8 3 0 5 10 1 4 87
139 Textiles: Weaving 4 5 2 4 8 9 4 1 2 3 2 5 7 5 3 0 0 0 1 3 5 8 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 84
277 Seal for a Joint or Juncture 2 0 0 0 0 2 0 4 2 2 1 2 0 3 0 1 2 0 1 1 3 0 4 0 1 2 1 2 5 3 1 4 2 1 2 1 6 2 3 5 4 3 4 1 83
248 Supports (e.g., for holding articles, etc.) 2 3 2 4 7 2 3 0 2 0 0 2 2 1 1 5 3 0 1 0 0 0 3 0 0 1 3 1 4 4 2 3 0 4 1 2 4 6 0 1 1 1 0 0 81
227 Elongated-Member-Driving Apparatus 0 0 0 3 3 0 3 3 4 0 4 1 0 2 4 1 0 1 0 0 0 2 0 2 1 1 1 0 1 1 1 7 1 3 4 3 5 3 3 6 0 3 2 1 80
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 1 0 1 2 3 4 1 4 5 6 3 2 2 0 2 4 2 2 1 1 0 0 0 0 1 0 2 1 1 2 1 1 3 2 4 2 1 1 4 2 2 1 1 1 79
251 Valves and Valve Actuation 2 2 2 2 4 1 4 5 4 0 3 2 4 4 2 1 1 4 1 0 2 1 3 1 0 1 3 0 0 2 1 0 0 1 1 0 2 2 2 1 0 1 3 3 78
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 0 2 3 5 2 1 3 2 1 0 0 2 0 1 0 4 1 1 1 0 2 0 0 1 0 2 1 0 0 1 3 0 1 2 1 1 1 3 6 1 6 6 4 7 78
033 Geometrical Instruments 1 2 1 0 0 2 5 0 0 0 2 3 1 2 1 2 1 2 1 0 4 1 2 2 2 2 2 3 2 0 2 4 4 3 3 3 0 1 0 0 0 1 2 1 70
340 Communications: Electrical 1 0 1 1 0 5 0 2 1 1 2 2 1 0 0 0 1 1 2 1 2 2 1 1 3 0 1 1 3 0 2 0 2 0 4 4 0 4 2 3 1 2 5 4 69
435 Chemistry: Molecular Biology and Microbiology 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 1 0 0 3 0 4 2 1 4 0 2 0 3 3 5 3 3 6 7 5 2 3 1 2 2 65
128 Surgery (includes Class 600) 3 0 0 0 2 0 2 0 0 0 0 0 0 1 1 0 1 1 1 0 2 1 1 3 0 1 1 1 2 2 2 3 2 2 3 3 2 4 2 1 4 4 3 3 64
220 Receptacles 1 3 2 3 2 2 3 6 0 4 1 1 3 0 2 1 2 3 0 2 0 1 1 0 1 0 1 3 1 3 1 1 0 2 2 0 0 0 1 0 2 2 0 1 64
337 Electricity: Electrothermally or Thermally Actuated Switches 3 4 4 5 2 3 2 4 3 2 0 2 0 0 1 0 0 0 0 5 3 1 0 1 0 1 0 1 1 1 0 2 1 0 1 0 2 0 1 0 1 2 0 1 60
384 Bearings 0 1 1 1 2 1 2 0 1 0 1 0 0 0 0 2 0 0 0 0 0 0 3 0 4 0 1 1 4 5 5 5 5 9 3 1 0 0 0 1 1 0 0 0 60
427 Coating Processes 0 0 2 4 2 1 4 2 0 4 4 5 3 1 1 0 0 0 0 0 1 1 1 0 0 2 2 1 2 2 0 2 1 2 0 1 2 1 2 0 1 0 1 1 59
356 Optics: Measuring and Testing 0 0 1 1 0 0 0 0 0 1 0 0 1 1 0 0 1 0 0 0 0 0 0 1 1 0 1 0 2 1 1 0 0 3 2 4 4 5 8 2 4 4 2 5 56
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 0 2 1 3 0 0 3 0 1 1 1 1 0 2 1 2 0 2 0 0 1 1 0 1 0 1 1 0 1 0 2 0 3 0 2 2 2 3 2 4 2 1 4 2 55
002 Apparel 1 2 2 1 1 1 5 2 1 2 1 5 1 0 1 0 0 1 2 2 0 2 1 0 2 1 1 0 2 0 2 0 1 1 2 1 1 2 0 1 0 0 1 2 54
606 Surgery (instruments) 0 0 0 0 1 1 0 0 0 0 2 0 0 1 0 0 0 0 0 0 1 0 2 0 1 1 1 1 2 1 3 0 0 1 3 4 7 3 3 3 3 3 1 2 51
119 Animal Husbandry 0 0 0 1 1 0 0 0 2 0 0 0 1 0 1 3 2 0 1 6 0 1 0 0 1 0 4 1 5 0 2 1 3 3 2 1 2 1 1 1 3 0 0 0 50
219 Electric Heating 1 1 2 2 0 3 4 2 2 2 2 0 1 2 1 0 1 0 0 1 0 0 2 0 0 1 0 1 2 1 1 3 0 2 0 0 0 3 1 1 1 0 3 1 50
362 Illumination 0 1 0 1 1 1 0 0 0 1 2 4 1 2 0 0 0 1 0 2 0 0 0 1 1 0 0 0 0 1 1 1 2 2 0 0 2 4 1 3 0 3 4 7 50
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 0 2 3 1 0 2 1 1 1 2 1 0 2 0 1 3 2 1 2 0 1 1 1 0 1 0 0 1 1 3 0 3 3 0 1 1 1 0 3 0 0 2 1 0 49
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 0 0 0 1 1 0 0 0 1 0 0 0 1 1 2 1 2 1 0 0 0 1 1 0 0 0 0 0 0 0 1 1 2 0 0 1 2 2 8 6 2 3 4 4 49
101 Printing 2 1 2 2 3 2 0 1 2 2 0 0 1 1 3 0 1 0 0 1 1 1 0 1 1 0 0 0 1 0 1 2 0 1 1 3 0 1 1 0 2 0 2 3 46
702 DP: Measuring, Calibrating, or Testing (Data Processing) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 1 2 0 0 0 1 1 0 2 4 3 2 1 6 5 5 7 3 46
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 2 4 2 1 6 2 0 2 4 2 1 1 0 2 1 3 1 0 2 0 0 1 1 0 2 1 0 0 0 0 0 1 2 1 0 0 0 0 0 0 0 0 0 0 45
273 Amusement Devices: Games 0 3 2 0 0 0 0 0 1 3 0 0 1 1 0 2 1 0 3 2 0 2 0 1 1 0 2 1 1 1 0 1 3 2 1 4 0 2 1 2 0 1 0 0 45
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 2 1 2 3 4 1 1 3 2 2 1 2 0 0 2 0 1 1 1 0 1 0 0 1 0 0 0 1 0 0 4 1 0 1 0 1 1 1 1 0 1 0 1 1 45
089 Ordnance 0 0 0 0 0 1 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 1 0 0 0 0 2 0 1 2 4 2 3 0 5 0 2 2 2 4 3 2 3 2 44
324 Electricity: Measuring and Testing 0 0 1 1 1 0 0 0 4 1 0 0 0 0 0 3 1 0 0 0 0 1 1 2 0 3 0 1 0 2 2 2 1 2 0 0 0 2 0 2 5 1 4 1 44
169 Fire Extinguishers 0 2 2 1 4 2 1 0 1 0 2 2 0 0 0 1 0 2 4 0 1 0 0 3 1 0 0 1 0 1 1 1 0 1 0 0 1 1 1 1 1 1 1 1 42
052 Static Structures (e.g., Buildings) 1 2 0 2 3 3 2 1 1 1 1 0 2 1 0 1 0 0 0 1 0 0 0 0 0 0 1 1 1 1 0 3 2 1 1 1 0 2 1 1 0 1 1 0 40
401 Coating Implements with Material Supply 1 2 2 5 1 0 1 1 0 0 0 0 1 0 2 1 2 0 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 3 0 1 2 4 1 2 0 0 1 1 38
066 Textiles: Knitting 9 3 4 9 0 0 0 1 1 0 2 3 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 37
072 Metal Deforming 1 5 0 2 1 5 0 2 1 0 0 1 3 0 0 1 0 3 1 1 0 0 0 0 0 0 2 0 1 0 0 0 2 2 0 1 0 0 0 0 0 1 1 0 37
174 Electricity: Conductors and Insulators 0 0 3 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 1 0 2 2 4 2 4 0 3 0 0 1 1 0 4 1 2 37
204 Chemistry: Electrical and Wave Energy 0 0 1 1 0 0 0 0 0 0 1 1 2 0 0 3 1 1 1 0 1 2 2 1 1 0 1 3 1 1 0 1 1 1 3 0 0 0 3 0 0 0 2 0 36
026 Textiles: Cloth Finishing 1 3 5 3 0 1 0 2 4 1 2 0 0 0 0 3 3 1 0 1 0 0 1 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 35
106 Compositions: Coating or Plastic 1 1 0 1 2 3 1 1 1 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 2 1 1 2 2 1 1 1 0 1 2 0 0 2 1 1 2 35
074 Machine Element or Mechanism 1 1 1 2 1 3 2 1 1 3 0 3 0 1 2 0 0 0 0 1 0 3 0 3 0 1 1 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 34
083 Cutting 1 0 3 2 1 1 4 1 5 5 1 1 2 2 1 0 0 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 34
280 Land Vehicles 0 1 0 0 0 0 2 1 0 0 1 0 0 0 0 0 1 1 1 1 1 0 1 1 0 0 1 1 0 1 0 3 1 1 0 2 1 0 4 3 1 1 1 1 34
382 Image Analysis 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 0 1 1 0 0 2 0 1 0 1 1 4 4 1 2 5 4 3 33
040 Card, Picture, or Sign Exhibiting 0 0 0 3 2 2 2 3 1 1 0 0 1 0 2 1 0 0 1 0 0 0 0 0 0 0 2 0 0 2 0 0 0 1 2 0 0 0 3 1 0 2 0 0 32
211 Supports: Racks 0 0 2 0 1 1 1 1 2 2 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 2 0 4 0 2 1 0 0 0 0 1 0 2 1 1 2 0 0 1 31
224 Package and Article Carriers 0 0 0 0 0 0 0 0 1 0 0 1 1 0 2 1 0 0 0 0 2 0 1 1 2 2 1 1 1 1 4 1 0 1 1 0 2 0 1 0 2 1 0 0 31
310 Electrical Generator or Motor Structure 0 0 1 1 0 1 1 1 0 0 1 0 2 0 0 0 0 0 1 0 1 1 0 0 0 2 0 0 2 2 1 1 2 1 0 1 1 0 2 1 0 3 0 1 31
359 Optics: Systems and Elements 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 1 2 0 5 1 3 1 1 0 1 2 1 1 2 2 1 1 1 1 31
005 Beds 1 1 0 0 0 0 0 1 0 0 0 2 0 1 0 1 0 0 0 0 0 0 1 0 1 0 1 0 1 1 2 1 1 1 0 0 2 1 1 3 0 1 2 3 30
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 0 1 0 0 1 0 0 2 0 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 2 2 7 1 1 1 3 0 0 1 0 30
030 Cutlery 0 1 1 0 2 0 0 1 0 0 1 0 2 1 0 0 0 1 0 0 0 1 0 0 1 0 2 2 0 0 0 0 0 1 0 2 2 1 0 1 3 1 1 1 29
400 Typewriting Machines 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 0 0 0 1 1 2 0 1 1 2 3 1 1 4 3 0 4 1 29
043 Fishing, Trapping, and Vermin Destroying 0 0 0 1 0 1 1 1 0 2 1 0 2 0 0 0 0 0 0 0 0 0 0 0 1 2 0 1 0 0 1 1 1 1 2 2 0 2 1 0 1 1 2 0 28
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 3 0 3 0 2 3 2 1 1 2 0 1 28