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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

PENNSYLVANIA

( 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) 161 175 173 261 283 232 300 295 199 312 213 222 310 267 168 164 112 122 156 112 83 102 103 96 72 91 110 118 109 122 128 112 103 105 108 143 154 133 133 121 84 72 67 117 6823
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 28 27 20 40 29 23 37 24 26 43 41 85 105 101 109 144 92 129 77 72 73 110 93 77 123 101 143 136 128 122 161 184 200 263 332 327 336 351 379 401 320 191 165 216 6184
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 79 84 119 169 156 136 149 152 104 185 128 125 119 118 138 164 113 124 144 117 140 136 122 119 122 115 116 117 125 169 197 194 177 192 151 171 169 185 164 155 131 149 108 112 6159
439 Electrical Connectors 22 23 64 47 82 56 45 69 80 77 53 62 68 51 48 62 48 50 40 44 76 69 67 74 133 96 130 114 117 123 111 85 88 95 93 96 95 135 106 135 125 127 90 119 3590
428 Stock Material or Miscellaneous Articles 32 35 43 56 51 51 62 74 64 73 66 86 65 69 59 69 44 59 59 53 45 54 55 51 60 62 71 72 70 68 75 69 65 76 84 90 91 73 78 62 82 79 72 48 2822
073 Measuring and Testing 39 50 96 81 74 58 61 50 58 52 70 59 64 59 71 38 41 43 55 45 44 49 39 48 42 36 46 33 33 31 24 28 37 32 33 44 39 32 31 30 39 31 24 23 2012
029 Metal Working 29 38 56 65 49 62 57 46 78 62 85 67 51 47 50 48 29 45 61 38 51 33 41 69 73 52 51 42 56 46 32 37 37 32 34 36 25 27 28 22 25 29 20 28 1989
435 Chemistry: Molecular Biology and Microbiology 4 5 8 8 1 4 6 6 9 8 12 12 11 13 13 9 6 9 12 9 8 6 8 10 20 11 21 21 21 34 37 39 45 64 117 163 210 166 230 140 72 82 57 108 1855
210 Liquid Purification or Separation 11 19 25 24 32 28 31 30 25 30 43 36 24 32 33 21 17 32 31 20 26 29 29 37 35 32 37 37 39 72 59 60 60 52 42 45 46 39 25 19 18 25 42 32 1481
427 Coating Processes 24 14 20 33 24 32 33 31 37 62 32 48 32 40 32 34 29 29 32 39 30 25 29 25 36 28 47 34 29 21 28 24 43 32 39 29 36 49 40 38 33 26 19 14 1411
052 Static Structures (e.g., Buildings) 23 23 41 60 41 42 39 40 46 33 49 48 24 35 43 29 21 29 29 11 9 29 20 32 36 26 42 27 24 18 32 27 28 28 34 29 36 35 41 42 24 40 24 15 1404
423 Chemistry of Inorganic Compounds 35 22 35 24 35 46 41 25 36 30 22 33 47 31 33 27 27 33 39 36 35 25 36 63 39 19 41 34 36 45 41 30 30 25 31 23 20 24 24 13 20 14 8 21 1354
361 Electricity: Electrical Systems and Devices 21 41 45 52 57 41 33 37 53 44 43 32 30 46 38 31 22 24 22 25 21 33 19 22 27 20 24 15 7 16 19 19 19 22 18 27 40 26 24 34 40 35 25 28 1317
072 Metal Deforming 43 40 65 50 63 52 56 49 75 52 48 56 28 25 28 15 16 15 19 11 15 16 23 26 30 27 14 19 16 15 19 22 14 24 19 31 27 12 11 5 8 5 4 10 1218
128 Surgery (includes Class 600) 7 11 9 14 17 8 8 23 20 23 14 17 23 15 12 9 5 9 17 12 6 26 15 20 25 18 37 28 34 32 39 40 42 62 48 54 55 52 41 63 61 46 34 42 1193
137 Fluid Handling 37 39 45 45 44 38 48 50 54 35 42 23 29 26 28 31 12 31 28 20 19 27 23 12 18 14 23 17 30 16 22 21 15 17 12 16 29 27 23 18 17 12 11 12 1156
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 19 25 40 60 33 28 39 28 33 31 24 36 31 31 23 36 17 23 17 12 23 21 16 18 7 13 21 23 28 18 28 20 18 17 11 18 15 27 24 14 23 27 17 18 1051
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 16 20 23 29 29 23 24 34 37 46 39 35 41 29 19 18 17 23 26 30 34 14 25 15 18 17 17 15 12 18 23 19 26 23 22 24 28 18 24 15 21 27 18 19 1050
376 Induced Nuclear Reactions: Processes, Systems, and Elements 14 12 17 19 11 12 7 8 12 12 17 18 21 29 26 46 22 14 18 15 12 23 15 45 155 86 64 40 33 33 23 36 15 15 13 14 9 5 8 4 4 8 6 6 1022
148 Metal Treatment 21 43 33 32 29 18 21 26 39 43 35 37 32 39 26 24 21 11 22 10 24 20 12 17 20 20 26 32 15 33 21 35 16 18 8 21 17 16 21 18 19 7 9 8 1015
062 Refrigeration 16 22 34 37 34 28 23 16 21 33 26 22 16 19 21 22 11 17 19 17 18 26 24 20 28 22 22 13 24 25 28 26 22 14 28 22 38 23 28 27 24 18 12 23 1009
324 Electricity: Measuring and Testing 19 16 24 31 30 22 31 35 31 38 38 20 17 20 19 18 20 16 16 14 15 18 14 19 23 26 32 24 28 23 24 18 15 18 20 11 13 20 17 26 24 39 24 25 991
065 Glass Manufacturing 7 24 37 53 42 18 27 35 40 22 43 50 44 42 36 41 28 38 36 47 22 18 27 24 22 29 20 22 17 10 2 9 5 4 5 8 8 1 1 7 6 5 2 4 988
200 Electricity: Circuit Makers and Breakers 30 20 52 53 69 18 44 33 41 30 40 45 32 22 21 21 32 17 25 25 14 8 16 16 19 8 6 11 6 10 24 12 9 12 10 7 22 19 6 12 12 15 8 15 967
252 Compositions 13 8 20 22 18 23 25 28 33 48 19 19 27 22 16 19 12 16 19 14 15 21 10 12 20 16 18 23 22 23 38 27 37 32 35 31 31 30 16 16 27 23 9 11 964
219 Electric Heating 22 29 35 25 23 32 32 42 58 47 34 26 15 17 16 20 9 14 20 30 9 22 33 25 31 18 18 26 24 8 13 21 10 15 9 17 19 14 16 11 9 14 12 10 950
340 Communications: Electrical 28 19 19 35 15 10 13 20 35 32 31 32 26 31 15 13 20 14 12 14 14 6 5 10 17 11 20 23 16 20 17 13 13 17 13 32 43 26 35 22 16 34 24 41 922
206 Special Receptacle or Package 16 21 40 35 37 23 30 26 20 21 22 16 28 22 25 14 9 23 13 21 13 20 18 13 20 16 15 15 16 20 19 15 9 11 13 21 30 27 8 19 11 23 10 9 853
174 Electricity: Conductors and Insulators 16 27 28 28 36 32 39 35 36 31 35 31 16 23 19 13 9 17 13 16 17 18 11 5 15 13 10 4 14 6 5 9 9 11 11 16 17 14 28 25 21 20 22 25 846
250 Radiant Energy 22 19 29 25 14 22 34 30 25 12 21 26 19 15 19 19 21 18 13 8 6 13 9 12 22 20 21 30 21 19 8 28 24 18 14 25 17 21 13 11 15 18 22 22 840
414 Material or Article Handling 27 29 36 41 20 28 38 30 30 26 40 30 37 18 20 20 14 22 20 9 20 21 13 14 14 18 14 12 13 17 8 15 14 24 7 5 11 14 6 5 13 11 7 8 839
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 11 19 28 17 28 11 19 15 30 27 38 28 29 38 27 19 12 23 15 13 19 22 16 19 27 40 24 12 12 14 16 15 14 8 14 16 15 15 10 18 12 15 2 3 825
208 Mineral Oils: Processes and Products 19 22 26 19 18 11 21 32 35 32 44 46 35 26 26 34 27 19 11 13 21 31 23 13 15 5 9 18 14 5 10 24 10 4 11 4 6 3 6 4 5 2 1 6 766
604 Surgery (Medicators and Receptors) 11 3 2 4 9 12 7 12 9 11 15 9 15 22 13 9 8 9 12 5 14 16 11 9 21 18 22 18 21 22 31 28 27 21 19 33 32 20 22 34 40 30 29 27 762
248 Supports (e.g., for holding articles, etc.) 12 19 23 22 19 17 11 11 19 15 14 21 9 19 8 15 9 8 7 18 9 10 10 17 14 12 18 14 19 17 16 17 16 16 19 29 24 27 26 34 27 24 18 23 752
222 Dispensing (apparatus and process) 21 33 26 36 37 33 17 13 35 20 41 30 11 18 18 17 6 14 5 12 7 13 13 9 8 11 16 15 13 10 17 14 13 18 11 11 19 13 14 15 7 4 6 10 730
198 Conveyors: Power-Driven 19 31 36 36 31 21 16 18 34 25 15 17 17 20 17 13 13 16 18 11 20 10 8 13 11 14 12 12 9 18 8 13 10 10 9 12 19 15 19 15 19 6 6 10 722
204 Chemistry: Electrical and Wave Energy 9 9 6 16 14 17 21 17 23 26 26 19 25 24 21 21 22 19 19 13 24 27 20 26 8 8 25 14 10 9 10 10 8 7 10 7 23 23 19 15 12 12 15 7 716
310 Electrical Generator or Motor Structure 16 21 20 38 24 20 31 25 24 17 24 20 15 26 20 22 13 24 26 21 18 20 12 12 17 13 10 12 8 12 10 13 3 4 11 13 3 11 13 9 6 8 9 14 708
585 Chemistry of Hydrocarbon Compounds 24 16 25 24 24 25 30 29 30 37 32 25 17 5 13 24 11 15 16 5 12 17 28 6 13 18 29 10 17 16 13 21 14 16 9 4 6 2 9 6 5 2 2 2 704
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 20 9 17 32 19 20 18 17 24 36 18 22 25 18 16 23 18 12 23 13 20 24 8 14 9 13 13 12 14 13 10 15 9 9 7 8 21 11 16 15 11 7 1 8 688
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 7 8 18 9 10 10 17 21 13 14 14 15 9 7 11 15 7 11 20 25 18 20 22 23 20 21 20 21 14 22 23 14 11 17 8 18 19 14 10 18 24 13 16 10 677
313 Electric Lamp and Discharge Devices 15 16 28 34 35 25 14 24 26 13 19 15 20 13 19 16 8 7 16 15 17 28 18 29 16 15 11 9 15 8 5 9 4 10 5 5 10 5 9 3 22 30 7 1 669
106 Compositions: Coating or Plastic 14 5 21 18 17 11 16 10 17 30 12 23 15 21 17 17 17 14 19 13 13 14 11 15 14 13 12 6 15 9 19 13 18 28 19 23 16 13 15 12 16 8 6 13 668
385 Optical Waveguides 0 0 0 0 0 1 0 1 1 1 0 1 0 2 1 3 5 8 6 3 7 10 7 6 25 24 30 33 30 49 21 15 17 23 12 23 19 23 31 46 51 44 44 41 664
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 7 24 25 35 21 27 28 23 46 32 36 37 23 19 23 15 14 14 12 5 9 20 8 4 4 10 9 10 6 6 4 9 10 9 7 5 8 3 10 7 12 7 8 4 655
220 Receptacles 16 21 25 23 25 18 31 22 24 17 21 8 18 14 18 21 14 13 14 13 8 5 8 7 12 10 13 16 16 14 18 13 9 9 13 18 17 13 16 9 9 9 6 6 650
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 15 20 53 33 33 18 28 34 36 23 26 16 16 17 18 5 7 11 11 9 3 6 9 4 6 5 6 4 4 5 10 5 12 14 6 11 17 22 23 19 9 5 7 8 649
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 6 5 19 25 23 12 27 23 27 17 15 12 11 12 10 10 10 14 11 10 6 5 3 10 13 5 19 10 20 13 8 8 11 10 8 15 23 16 24 23 22 23 25 29 648
438 Semiconductor Device Manufacturing: Process 9 7 11 9 8 9 17 12 10 20 11 14 14 10 12 9 3 12 9 12 7 9 13 7 9 6 14 9 21 15 18 19 27 5 13 8 21 34 25 35 33 28 17 31 642
164 Metal Founding 10 12 23 26 27 18 35 35 29 36 36 25 25 16 12 14 6 7 6 8 6 10 14 19 21 17 4 10 5 8 17 16 14 9 6 7 9 2 3 8 8 6 2 9 636
318 Electricity: Motive Power Systems 13 13 22 24 20 24 24 15 25 33 38 18 17 18 17 24 6 6 8 11 13 26 12 11 10 11 18 19 7 12 8 14 9 8 2 10 9 13 10 7 2 6 4 16 633
266 Metallurgical Apparatus 11 12 24 15 24 29 20 16 28 20 24 29 24 14 19 24 15 11 18 12 10 22 12 13 17 18 12 9 10 11 6 7 10 10 7 7 6 9 7 6 9 4 1 4 616
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 11 9 11 12 16 11 18 17 20 21 10 17 12 15 8 9 10 17 9 13 8 9 11 13 19 10 20 15 19 16 11 11 17 12 11 14 19 15 18 16 10 10 13 9 592
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 17 13 25 27 21 24 17 16 20 13 24 17 8 16 15 11 9 12 16 8 2 1 7 6 22 8 7 15 9 7 8 7 11 12 1 10 8 14 30 14 10 14 14 14 580
280 Land Vehicles 17 13 21 13 12 10 16 10 16 14 12 14 22 8 12 9 6 8 7 18 5 9 10 5 12 10 13 4 5 12 10 16 22 7 10 21 22 32 20 15 15 13 9 16 571
165 Heat Exchange 2 13 22 27 15 32 20 18 11 10 24 18 7 13 6 18 10 18 23 10 10 11 8 9 29 14 14 9 8 5 8 9 4 6 6 5 7 4 6 12 11 16 14 25 567
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 7 6 5 16 11 6 17 18 17 15 15 11 13 11 11 10 9 12 17 16 14 14 10 15 15 17 31 11 14 17 9 9 11 14 10 10 15 7 16 14 12 10 7 8 553
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 18 21 45 22 23 21 19 30 38 20 13 36 19 19 23 25 8 16 24 6 10 15 4 2 11 3 4 5 1 0 2 1 4 4 2 3 2 1 6 7 2 4 2 9 550
056 Harvesters 15 13 7 6 15 13 12 22 20 14 9 9 6 8 13 11 14 17 20 10 19 15 16 8 12 19 12 21 5 14 7 10 9 6 6 12 20 18 13 8 11 14 11 3 543
362 Illumination 5 7 10 13 12 9 6 7 10 5 22 8 10 9 12 13 13 10 15 16 12 11 9 10 8 11 12 8 13 11 6 4 12 11 9 19 15 28 22 15 23 17 17 22 537
083 Cutting 19 17 24 34 22 18 24 18 17 20 31 17 17 15 17 14 10 16 11 3 2 10 12 8 8 5 10 7 8 5 8 10 7 5 3 11 10 14 6 6 7 4 4 2 536
606 Surgery (instruments) 2 2 0 1 2 3 8 4 1 5 3 9 2 3 1 2 1 3 2 4 3 6 7 11 9 10 11 10 19 9 15 18 21 28 29 21 39 29 27 27 39 31 27 31 535
060 Power Plants 9 18 30 21 25 11 11 10 10 21 20 16 18 27 20 15 21 15 18 13 15 15 9 9 9 7 3 4 2 4 3 7 7 7 8 6 11 9 12 6 10 7 5 10 534
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 4 4 5 11 5 5 2 7 20 17 9 14 14 7 4 6 9 7 13 13 16 16 18 19 20 13 9 17 24 19 15 11 15 9 10 8 16 18 15 17 10 10 16 12 529
451 Abrading 28 27 15 25 18 10 23 18 22 24 19 22 13 11 7 5 3 9 10 6 3 4 13 10 3 9 5 6 10 6 6 12 7 11 10 12 9 16 11 13 13 7 7 11 529
501 Compositions: Ceramic 12 14 26 42 20 11 13 12 15 9 6 13 6 8 6 9 7 13 6 6 5 4 14 5 4 13 18 19 23 9 25 16 12 9 8 7 6 6 15 10 9 7 8 8 514
002 Apparel 16 16 15 17 14 13 15 16 24 3 15 18 11 7 9 6 3 4 5 7 7 7 8 4 9 4 8 15 14 16 9 7 9 13 16 14 23 25 13 17 5 12 5 15 509
426 Food or Edible Material: Processes, Compositions, and Products 7 10 9 6 12 15 9 11 16 15 7 10 7 7 12 7 7 5 7 12 12 4 12 4 10 9 12 13 7 11 22 24 15 22 13 12 23 16 18 17 18 10 6 6 507
015 Brushing, Scrubbing, and General Cleaning 25 10 14 17 14 15 16 13 10 11 21 13 12 8 7 9 5 9 8 15 12 10 5 10 8 9 10 7 12 9 5 11 10 14 6 22 10 28 9 16 13 5 4 5 502
074 Machine Element or Mechanism 16 18 32 29 27 34 23 17 15 19 21 15 13 16 14 9 8 13 9 5 3 7 12 7 3 6 4 6 13 8 7 4 7 10 3 9 11 8 3 5 4 4 3 0 500
239 Fluid Sprinkling, Spraying, and Diffusing 17 9 20 26 18 19 11 16 20 18 15 24 15 6 5 7 2 13 7 9 2 10 5 7 7 2 8 5 13 8 7 8 11 8 9 18 11 18 8 5 12 15 4 4 482
251 Valves and Valve Actuation 8 6 9 12 17 22 19 22 27 12 28 21 14 17 14 12 8 7 14 8 4 14 9 2 19 6 5 13 11 10 11 6 4 6 6 8 7 8 7 9 4 4 4 7 481
242 Winding, Tensioning, or Guiding 27 22 37 34 19 18 27 15 24 25 14 22 15 16 8 16 13 8 10 2 9 4 5 4 5 4 5 5 2 2 3 6 2 5 4 9 6 4 5 6 4 1 1 6 479
315 Electric Lamp and Discharge Devices: Systems 14 11 15 20 14 17 20 11 17 10 11 16 11 9 14 10 11 13 10 12 6 8 16 10 13 8 6 7 12 2 5 6 11 8 7 4 11 8 10 13 12 5 4 12 470
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 1 2 2 2 0 2 2 2 3 0 3 15 16 12 4 19 11 14 7 5 8 7 2 9 11 8 9 11 13 4 11 7 10 9 14 25 28 24 43 33 18 16 13 9 464
431 Combustion 11 11 18 13 6 13 9 15 23 22 9 24 14 12 17 22 13 17 10 6 10 19 9 4 14 7 5 6 7 9 9 18 7 8 8 3 2 2 4 4 4 8 7 3 462
053 Package Making 8 4 21 18 15 13 16 25 19 8 22 9 16 11 7 13 1 8 5 7 4 6 2 8 11 10 4 10 12 13 13 7 16 7 6