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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes
Breakout By Geographic Origin (State and Country)

Count of 1963 - 2004 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of U.S. States and Countries
From Which 1 or More Utility Patents Originated During the Period
Having Primary Classification In

Class 323, Electricity: Power Supply or Regulation Systems

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent origin is determined by the residence of the first-named inventor )

The following table displays U.S. states and countries and counts of utility patents originating from them; patents are distributed by year of patent grant
(U.S. or Foreign) Code State-Territory or Country 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 Total
(U.S.) CA CALIFORNIA 27 8 25 21 29 15 17 15 19 13 6 10 11 14 12 9 12 6 17 13 10 11 10 21 21 19 29 18 22 21 17 21 26 35 39 43 42 54 54 61 57 66 996
(U.S.) NY NEW YORK 18 14 11 25 22 18 13 16 19 8 10 10 6 5 7 8 4 3 8 5 4 7 4 6 6 3 6 2 0 5 4 4 7 7 6 13 6 4 4 3 5 3 339
(U.S.) TX TEXAS 2 1 3 1 2 0 2 5 4 3 0 0 5 4 1 1 0 2 4 5 2 8 1 9 2 6 3 5 5 7 6 8 13 8 18 16 32 21 23 13 21 13 285
(U.S.) PA PENNSYLVANIA 13 6 10 14 4 8 11 9 7 8 5 3 6 13 9 2 8 6 7 10 4 4 7 10 8 4 4 4 2 3 3 5 3 5 6 8 4 5 2 8 2 1 261
(U.S.) NJ NEW JERSEY 13 7 15 8 9 9 5 11 15 13 10 6 10 2 8 6 4 6 11 5 5 5 3 6 6 2 4 2 3 4 2 1 6 3 3 1 4 4 7 2 1 3 250
(U.S.) AZ ARIZONA 2 0 1 5 3 0 0 4 2 4 7 0 4 4 1 1 3 4 4 7 7 10 6 7 13 6 4 6 2 5 3 3 3 3 5 7 4 9 18 9 14 13 213
(U.S.) MA MASSACHUSETTS 7 7 5 6 4 11 10 8 12 6 10 3 2 1 5 3 4 0 6 8 1 2 2 3 3 0 3 3 1 3 3 3 9 1 9 6 9 6 5 2 7 5 204
(U.S.) IL ILLINOIS 7 3 3 5 7 9 4 8 8 2 4 0 4 5 4 1 2 1 1 6 1 3 4 2 3 2 4 3 5 3 6 3 3 1 5 6 11 3 2 3 2 3 162
(U.S.) OH OHIO 7 2 4 3 9 5 5 7 2 10 4 5 4 3 3 1 3 3 4 4 2 1 5 1 1 1 1 2 1 0 1 4 1 0 6 3 2 2 3 5 1 0 131
(U.S.) OR OREGON 3 1 0 0 0 1 1 1 2 1 1 1 0 0 0 0 0 0 2 3 0 2 1 2 6 5 2 0 2 1 1 2 5 5 6 5 9 6 12 11 7 5 112
(U.S.) CT CONNECTICUT 7 3 6 10 9 8 5 5 6 0 2 1 2 5 1 0 1 0 1 3 1 0 1 3 2 2 3 2 0 3 1 1 1 0 0 1 0 2 1 2 1 0 102
(U.S.) FL FLORIDA 0 0 1 2 3 1 3 1 3 1 1 1 0 0 1 1 0 0 0 3 5 0 3 2 7 4 1 4 1 5 2 2 5 8 9 5 1 5 5 0 4 1 101
(U.S.) NC NORTH CAROLINA 0 0 3 1 2 0 2 2 1 1 0 0 1 0 2 1 0 0 0 0 1 0 0 0 0 1 3 0 2 1 0 1 1 3 5 9 3 6 6 8 6 10 82
(U.S.) WI WISCONSIN 4 4 8 6 5 3 3 3 4 1 3 1 2 0 1 1 0 2 0 0 1 2 0 2 1 0 0 0 0 3 1 1 2 1 5 1 1 1 0 2 1 1 77
(U.S.) MN MINNESOTA 1 0 0 0 5 5 1 4 2 0 3 1 2 2 0 3 0 1 1 2 0 3 2 1 2 3 2 2 2 1 1 2 1 0 5 5 4 0 1 1 2 2 75
(U.S.) IN INDIANA 2 1 2 3 2 4 1 3 2 1 2 2 2 0 2 1 0 0 5 2 5 2 0 0 1 0 2 1 3 0 0 3 2 4 5 0 3 0 1 1 3 1 74
(U.S.) CO COLORADO 0 0 0 1 2 0 1 0 0 0 1 1 1 1 1 0 2 1 0 1 0 1 1 0 1 1 4 1 0 1 2 2 8 4 0 1 7 6 4 3 5 6 71
(U.S.) MD MARYLAND 3 1 4 2 3 3 6 5 3 2 1 1 0 1 1 1 3 2 1 0 1 3 1 4 2 1 0 1 1 0 0 3 2 1 0 3 0 0 2 0 0 0 68
(U.S.) MI MICHIGAN 5 3 2 5 2 1 1 3 0 1 1 0 0 3 4 0 1 2 0 1 0 1 1 2 1 0 3 3 0 1 1 1 1 2 2 5 1 2 2 1 2 0 67
(U.S.) VA VIRGINIA 0 2 1 6 3 1 2 4 1 1 0 2 1 1 1 0 0 0 0 1 1 0 0 2 1 3 3 2 0 2 2 0 1 2 0 3 2 1 1 1 0 1 55
(U.S.) ID IDAHO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 2 2 1 4 4 3 5 4 5 3 4 4 44
(U.S.) WA WASHINGTON 1 0 0 0 1 0 2 2 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 2 0 0 3 1 0 4 2 2 0 1 2 1 1 1 3 3 2 0 37
(U.S.) NH NEW HAMPSHIRE 0 0 0 0 0 2 0 0 1 1 0 0 0 0 2 1 0 0 0 0 0 1 1 1 1 1 2 1 1 2 1 0 1 0 2 2 0 2 0 3 2 0 31
(U.S.) IA IOWA 1 1 3 0 0 1 1 2 2 4 1 0 0 0 2 0 0 0 0 1 0 0 1 0 0 0 0 0 1 2 0 0 0 1 1 1 0 1 1 0 0 0 28
(U.S.) MO MISSOURI 2 1 4 5 2 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 22
(U.S.) RI RHODE ISLAND 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 1 0 1 2 3 2 0 1 1 2 2 21
(U.S.) VT VERMONT 1 1 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 3 1 2 4 0 1 2 1 21
(U.S.) GA GEORGIA 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 2 0 0 1 0 4 2 1 2 17
(U.S.) OK OKLAHOMA 0 1 1 1 1 0 2 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 1 3 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 17
(U.S.) AL ALABAMA 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2 3 1 14
(U.S.) UT UTAH 0 1 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 2 0 1 0 0 0 0 0 1 0 10
(U.S.) TN TENNESSEE 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0 1 0 0 1 0 1 0 0 1 0 0 0 1 0 0 0 0 9
(U.S.) KY KENTUCKY 0 0 1 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 8
(U.S.) NM NEW MEXICO 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 1 0 0 8
(U.S.) DC DISTRICT OF COLUMBIA 0 2 0 0 1 1 1 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 0 0 0 0 0 0 1 6
(U.S.) MS MISSISSIPPI 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 0 0 0 0 0 1 0 0 2 0 0 1 0 0 4
(U.S.) SC SOUTH CAROLINA 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 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 4
(U.S.) DE DELAWARE 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
(U.S.) AR ARKANSAS 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
(U.S.) ME MAINE 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2
(U.S.) NE NEBRASKA 0 0 1 0 1 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 0 0 0 0 0 0 0 0 0 2
(U.S.) LA LOUISIANA 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
(U.S.) MT MONTANA 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 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
(U.S.) WV WEST VIRGINIA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
(U.S.)   -- Subtotal -- 128 70 115 132 133 108 100 119 119 82 73 49 65 66 72 41 48 40 72 84 53 72 58 90 97 69 88 65 58 81 64 75 104 106 150 152 159 151 168 156 159 147 4038
(Foreign) JPX JAPAN 1 1 9 9 7 2 1 2 6 12 5 5 8 11 16 11 9 8 14 25 7 22 21 21 38 22 24 25 22 24 21 21 29 36 47 53 57 59 70 70 49 49 949
(Foreign) DEX GERMANY 1 1 5 5 4 6 9 10 12 5 11 7 8 17 12 4 6 5 4 15 4 8 11 9 13 13 9 9 8 9 7 6 12 14 17 8 16 26 20 19 21 15 421
(Foreign) FRX FRANCE 0 1 1 3 4 2 1 2 2 0 2 0 1 5 3 2 0 0 1 3 2 4 1 5 7 1 4 6 5 5 1 4 4 7 7 12 13 10 9 17 8 8 173
(Foreign) GBX UNITED KINGDOM 4 4 6 10 8 4 7 10 5 2 1 3 1 2 11 2 4 0 1 5 1 1 2 4 0 2 2 5 3 3 2 0 1 6 4 2 6 6 5 4 4 5 158
(Foreign) ITX ITALY 0 0 1 0 0 0 0 2 2 0 2 1 0 1 2 1 0 1 0 1 0 0 0 2 8 1 4 7 3 1 3 5 1 4 9 9 7 13 15 13 10 3 132
(Foreign) NLX NETHERLANDS 2 1 2 1 4 3 1 1 1 1 0 1 3 3 0 2 1 3 2 1 1 3 6 3 4 2 5 5 1 5 3 5 4 4 1 4 8 6 7 5 5 6 126
(Foreign) CAX CANADA 0 0 1 1 4 2 3 1 2 0 1 1 0 4 1 1 4 2 2 0 1 1 1 2 4 3 3 1 2 3 2 4 3 5 4 3 7 3 8 3 2 4 99
(Foreign) KRX SOUTH KOREA 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 2 1 2 1 2 3 3 12 10 8 6 8 3 6 3 71
(Foreign) CHX SWITZERLAND 2 1 3 1 2 1 1 1 2 1 1 0 1 1 1 1 0 1 1 4 2 1 1 4 6 1 2 1 2 0 0 1 0 1 1 1 3 4 4 4 0 3 68
(Foreign) TWX TAIWAN 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 1 0 1 1 2 1 4 0 3 5 5 5 10 11 8 60
(Foreign) SEX SWEDEN 1 2 2 0 3 0 0 1 0 1 2 2 0 3 0 3 1 0 0 1 0 0 1 2 1 0 1 0 1 0 0 0 0 2 2 3 7 4 2 6 2 2 58
(Foreign) SUX U.S.S.R. 0 0 0 0 0 0 1 2 2 3 2 1 1 3 4 3 3 1 2 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 31
(Foreign) ATX AUSTRIA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 3 0 1 1 2 1 0 0 0 1 0 5 3 1 1 1 5 27
(Foreign) ILX ISRAEL 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 4 2 1 2 2 20
(Foreign) FIX FINLAND 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 1 0 0 0 0 1 0 0 1 0 0 1 0 1 0 2 1 0 1 1 2 1 0 17
(Foreign) AUX AUSTRALIA 0 0 1 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 1 1 0 1 1 1 0 0 0 1 15
(Foreign) BEX BELGIUM 0 1 0 1 0 1 0 0 0 0 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 1 1 1 1 15
(Foreign) HKX CHINA,HONG KONG S.A.R. 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 0 0 1 1 1 0 0 2 0 0 3 0 2 2 13
(Foreign) IEX IRELAND 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 0 0 0 0 1 0 0 1 1 0 2 3 1 0 9
(Foreign) CSX CZECHOSLOVAKIA 0 0 1 0 1 0 1 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 1 1 1 0 0 0 8
(Foreign) DKX DENMARK 0 0 0 0 0 0 0 0 1 0 0 0 2 2 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 0 7
(Foreign) CNX CHINA P.REP. 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 0 0 0 1 0 0 0 0 0 0 1 0 2 1 5
(Foreign) CZX CZECH REPUBLIC 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 0 0 0 0 0 0 0 0 1 0 0 2 1 1 5
(Foreign) PLX POLAND 0 0 1 0 0 0 0 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
(Foreign) ROX ROMANIA 0 0 0 0 0 1 0 0 0 0 0 1 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 2 5
(Foreign) SGX SINGAPORE 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 0 0 0 0 0 2 0 0 0 0 0 0 2 0 4
(Foreign) ESX SPAIN 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3
(Foreign) INX INDIA 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 0 0 0 0 0 0 1 0 0 1 1 0 0 0 3
(Foreign) MXX MEXICO 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3
(Foreign) YUX YUGOSLAVIA 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 3
(Foreign) NOX NORWAY 0 0 0 0 0 0 1 0 1 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 0 0 0 0 0 2
(Foreign) NZX NEW ZEALAND 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 0 0 0 0 0 0 0 0 2 0 0 0 0 0 2
(Foreign) ZAX SOUTH AFRICA 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 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2
(Foreign) BOX BOLIVIA 0 0 0 0 0 1 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 0 0 0 0 0 0 0 0 1
(Foreign) BRX BRAZIL 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
(Foreign) COX COLOMBIA 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 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1
(Foreign) GRX GREECE 0 0 0 0 0 0 1 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 0 0 0 0 0 0 0 1
(Foreign) HNX HONDURAS 0 0 0 0 0 0 0 1 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 0 0 0 0 0 0 1
(Foreign) KEX KENYA 0 0 0 0 0 1 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 0 0 0 0 0 0 0 0 1
(Foreign) MCX MONACO 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 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
(Foreign)   -- Subtotal -- 11 12 33 34 40 24 28 35 37 25 29 23 27 53 53 32 28 24 28 57 20 40 48 52 87 49 56 65 52 55 45 53 64 91 110 114 150 154 166 166 132 124 2526
(ALL) ALL All Regions, U.S. and Foreign 139 82 148 166 173 132 128 154 156 107 102 72 92 119 125 73 76 64 100 141 73 112 106 142 184 118 144 130 110 136 109 128 168 197 260 266 309 305 334 322 291 271 6564


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