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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 238, Railways: Surface Track

( 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.) IL ILLINOIS 1 1 3 1 4 1 4 2 6 3 2 2 4 0 2 5 3 4 6 2 3 2 0 1 2 1 2 0 0 1 4 0 1 3 0 1 1 0 1 0 2 1 82
(U.S.) CA CALIFORNIA 0 1 1 4 1 1 3 2 3 4 9 2 4 0 1 2 3 0 1 1 0 1 4 0 3 2 1 0 0 1 0 1 3 0 0 1 3 0 2 3 1 1 70
(U.S.) PA PENNSYLVANIA 4 1 3 2 2 2 1 4 2 1 1 0 0 1 1 0 1 0 1 4 0 1 0 2 1 2 2 2 2 3 1 2 0 2 1 0 1 2 0 1 1 1 58
(U.S.) OH OHIO 0 0 2 2 4 4 4 5 0 1 0 0 2 0 0 0 0 1 6 0 1 2 0 1 1 1 2 1 0 2 0 0 0 0 0 1 0 0 1 0 3 1 48
(U.S.) NJ NEW JERSEY 1 1 3 3 0 2 0 0 4 1 2 2 1 1 0 3 1 2 1 2 1 0 2 0 1 1 2 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 39
(U.S.) NY NEW YORK 1 1 2 1 1 0 3 0 3 2 2 1 1 1 0 2 1 1 2 0 0 1 0 2 0 0 0 0 1 0 0 0 2 1 0 0 0 0 0 0 2 2 36
(U.S.) FL FLORIDA 0 1 1 2 2 3 1 0 0 0 0 3 1 0 0 2 0 0 1 0 0 2 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 22
(U.S.) MI MICHIGAN 1 0 0 0 0 1 1 1 0 0 2 1 1 1 1 1 1 0 1 1 0 0 1 0 0 1 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 1 20
(U.S.) OR OREGON 0 0 0 0 1 0 0 0 1 0 1 0 1 0 0 2 2 0 0 1 0 0 0 0 0 1 1 1 0 0 1 0 1 2 2 1 0 0 0 1 0 0 20
(U.S.) WI WISCONSIN 1 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 1 1 2 5 0 1 1 2 0 0 0 0 0 0 0 0 20
(U.S.) MO MISSOURI 1 0 0 1 0 0 0 0 0 0 0 0 0 2 0 1 1 0 1 1 0 0 0 0 0 0 2 2 1 1 0 0 0 1 0 1 0 2 0 1 0 0 19
(U.S.) TX TEXAS 1 0 0 0 1 1 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 0 0 0 2 0 0 15
(U.S.) CT CONNECTICUT 0 0 1 0 2 2 0 0 2 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 12
(U.S.) MA MASSACHUSETTS 0 0 0 0 1 0 0 1 1 0 1 0 1 0 0 0 0 1 0 0 0 0 0 1 0 1 0 2 0 1 0 0 1 0 0 0 0 0 0 0 0 0 12
(U.S.) MN MINNESOTA 0 0 0 0 2 1 0 0 1 0 1 0 1 1 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 12
(U.S.) IN INDIANA 1 0 1 0 1 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 0 2 0 0 0 11
(U.S.) MD MARYLAND 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 1 1 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 11
(U.S.) CO COLORADO 1 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 2 0 0 0 0 10
(U.S.) WA WASHINGTON 0 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 1 2 0 1 0 0 10
(U.S.) NE NEBRASKA 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 1 1 1 0 0 0 0 1 0 1 0 0 1 2 9
(U.S.) VA VIRGINIA 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 9
(U.S.) KS KANSAS 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 2 0 1 0 0 0 0 0 0 7
(U.S.) LA LOUISIANA 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 2 0 1 1 2 0 0 7
(U.S.) NC NORTH CAROLINA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 6
(U.S.) TN TENNESSEE 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 6
(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 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 1 0 2 1 0 0 6
(U.S.) ID IDAHO 0 0 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 2 0 0 0 0 0 1 0 0 0 0 0 0 5
(U.S.) KY KENTUCKY 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 5
(U.S.) UT UTAH 1 0 0 1 0 0 1 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 1 0 0 0 0 5
(U.S.) AZ ARIZONA 0 0 0 2 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 0 0 0 0 0 0 0 0 0 0 0 4
(U.S.) GA GEORGIA 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 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 4
(U.S.) OK OKLAHOMA 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4
(U.S.) IA IOWA 0 0 0 0 1 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 2
(U.S.) MS MISSISSIPPI 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 1 0 0 0 0 0 0 0 0 2
(U.S.) DE DELAWARE 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
(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 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1
(U.S.) MT MONTANA 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
(U.S.) ND NORTH DAKOTA 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 0 1
(U.S.) RI RHODE ISLAND 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 0 0 0 0 0 0 1
(U.S.) SD SOUTH DAKOTA 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 0 1
(U.S.) VT VERMONT 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 0 0 0 0 0 0 0 0 0 0 1
(U.S.) WY WYOMING 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 0 0 0 0 1
(U.S.)   -- Subtotal -- 17 7 18 20 28 20 21 17 24 12 25 19 18 8 9 19 15 15 25 17 9 13 11 11 11 14 16 12 10 20 9 4 12 18 7 14 9 12 10 17 10 13 616
(Foreign) DEX GERMANY 2 2 1 0 4 0 3 2 3 5 2 2 0 0 0 2 1 6 3 1 3 0 3 2 5 8 4 4 4 8 1 2 1 1 4 5 0 3 7 5 3 2 114
(Foreign) GBX UNITED KINGDOM 1 1 2 0 4 0 1 1 3 5 2 1 8 3 0 1 1 2 4 0 1 2 0 1 0 3 3 3 1 0 2 0 0 3 2 2 0 0 2 4 5 1 75
(Foreign) FRX FRANCE 1 1 0 3 1 2 2 3 1 2 0 2 2 2 3 5 1 2 0 1 3 1 0 0 2 0 0 2 2 2 1 1 3 1 1 1 0 1 1 1 0 1 58
(Foreign) CAX CANADA 0 0 1 1 0 0 1 0 1 1 0 1 4 1 0 3 1 0 1 2 0 4 0 2 0 0 0 2 0 1 0 2 0 1 2 4 4 2 6 3 1 1 53
(Foreign) AUX AUSTRALIA 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 2 3 3 3 3 1 5 2 1 2 6 1 2 1 0 1 0 1 2 0 0 0 1 1 0 43
(Foreign) JPX JAPAN 0 0 0 0 0 0 2 2 1 2 0 1 2 0 0 0 2 1 1 2 1 3 1 1 0 1 0 0 0 1 0 2 0 1 0 0 1 0 1 1 0 1 31
(Foreign) ATX AUSTRIA 0 0 0 0 0 0 0 0 1 0 2 2 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 2 1 1 0 0 0 0 1 2 0 0 2 0 0 0 17
(Foreign) CHX SWITZERLAND 1 0 0 0 2 0 1 0 0 2 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 3 0 1 0 0 0 2 0 0 1 0 0 0 1 0 0 0 17
(Foreign) HKX CHINA,HONG KONG S.A.R. 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 3 1 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 1 2 0 15
(Foreign) SEX SWEDEN 0 0 0 0 1 2 1 0 0 0 1 1 1 0 0 1 0 1 0 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 14
(Foreign) NLX NETHERLANDS 1 0 0 0 0 1 0 0 1 0 0 0 0 0 2 0 0 2 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
(Foreign) ZAX SOUTH AFRICA 1 0 0 0 1 2 0 0 0 0 0 0 2 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 10
(Foreign) ITX ITALY 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 7
(Foreign) BEX BELGIUM 0 1 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 1 0 1 1 0 0 0 6
(Foreign) ESX SPAIN 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 1 0 0 0 0 0 0 1 0 0 1 0 0 0 0 5
(Foreign) INX INDIA 0 0 0 0 0 0 0 0 0 1 0 0 1 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 1 5
(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 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 5
(Foreign) DKX DENMARK 0 0 0 0 0 0 1 0 1 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 0 3
(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 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 3
(Foreign) BRX BRAZIL 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 1 0 0 0 0 0 0 0 0 2
(Foreign) MXX MEXICO 0 0 0 0 1 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 2
(Foreign) ARX ARGENTINA 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 0 0 0 0 0 0 0 1
(Foreign) FIX FINLAND 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) HUX HUNGARY 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 0 0 0 0 1
(Foreign) ILX ISRAEL 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 0 0 1
(Foreign) LUX LUXEMBOURG 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 0 0 0 0 0 1
(Foreign) NOX NORWAY 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 0 1
(Foreign) NZX NEW ZEALAND 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 0 0 0 0 0 0 0 0 0 0 1
(Foreign) RUX RUSSIAN FEDERATION 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) SAX SAUDI ARABIA 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 0 0 1
(Foreign) ZWX ZIMBABWE 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 0 0 1
(Foreign)   -- Subtotal -- 7 5 4 5 15 7 12 8 14 21 9 11 23 7 5 17 9 19 14 11 17 14 6 12 13 17 11 22 10 16 5 13 8 9 13 17 5 10 22 19 14 10 506
(ALL) ALL All Regions, U.S. and Foreign 24 12 22 25 43 27 33 25 38 33 34 30 41 15 14 36 24 34 39 28 26 27 17 23 24 31 27 34 20 36 14 17 20 27 20 31 14 22 32 36 24 23 1122


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