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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 303, Fluid-Pressure and Analogous Brake 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.) MI MICHIGAN 8 7 8 10 11 10 15 23 39 26 31 30 25 25 13 13 8 5 7 1 1 4 1 7 9 12 13 9 19 24 16 18 21 27 18 15 17 20 31 26 27 13 663
(U.S.) OH OHIO 6 2 4 13 3 6 9 8 11 11 19 14 9 13 9 8 5 4 3 4 2 4 2 3 4 7 5 5 7 5 8 7 3 5 13 6 6 9 10 14 9 9 304
(U.S.) PA PENNSYLVANIA 3 11 11 16 6 13 8 9 11 4 11 6 7 8 15 8 4 6 3 3 5 1 6 5 2 7 4 7 5 4 5 6 8 12 2 9 7 9 6 5 1 1 280
(U.S.) IN INDIANA 3 5 4 7 1 4 4 9 11 8 15 15 6 4 0 2 1 2 0 1 1 0 1 1 3 6 5 5 9 4 5 8 3 4 1 3 2 4 6 6 3 2 184
(U.S.) IL ILLINOIS 1 3 8 6 7 11 8 10 5 8 9 5 10 7 10 9 4 4 3 2 0 4 1 3 2 3 2 2 2 1 1 0 1 5 3 1 3 7 2 1 5 2 181
(U.S.) MO MISSOURI 0 7 9 10 6 7 12 12 10 7 16 4 2 5 5 2 4 4 4 0 4 2 0 0 0 0 0 0 0 0 3 3 6 2 1 3 1 1 2 3 1 1 159
(U.S.) CA CALIFORNIA 1 4 3 6 2 4 2 5 3 7 10 9 6 6 4 5 1 3 5 1 3 1 1 3 1 5 3 3 1 1 1 2 3 3 3 3 1 3 3 3 5 3 142
(U.S.) NY NEW YORK 0 4 0 0 1 2 2 9 3 2 2 4 7 7 4 8 1 0 0 0 1 2 3 0 3 5 4 1 1 2 1 3 4 3 2 2 4 10 9 7 6 3 132
(U.S.) TX TEXAS 0 0 0 0 0 0 0 2 0 3 1 5 3 3 4 3 4 4 1 1 1 0 1 1 1 0 0 2 1 2 1 0 0 1 0 1 0 0 3 2 0 0 51
(U.S.) FL FLORIDA 0 0 0 1 0 0 3 0 2 3 3 1 3 0 0 0 0 1 1 1 2 1 0 1 0 0 2 2 1 0 2 0 0 1 0 0 2 2 3 6 2 1 47
(U.S.) MD MARYLAND 0 0 0 0 1 1 2 5 6 3 4 0 2 0 0 0 0 0 1 0 0 0 0 0 3 0 0 1 0 0 1 0 0 0 0 0 4 2 2 1 1 0 40
(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 0 1 1 0 3 2 2 2 1 2 7 2 2 1 0 4 3 33
(U.S.) WA WASHINGTON 0 0 1 0 0 0 1 1 1 1 0 1 3 1 2 4 0 1 0 0 0 0 1 2 1 1 1 0 3 0 1 0 1 1 0 0 1 1 1 0 0 0 32
(U.S.) VA VIRGINIA 0 0 0 0 0 0 0 0 0 0 3 4 3 0 0 3 0 1 0 1 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 1 0 0 1 0 1 0 21
(U.S.) NJ NEW JERSEY 1 0 0 0 1 0 0 0 0 1 0 1 1 2 1 1 2 0 1 1 1 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 1 0 0 0 0 18
(U.S.) IA IOWA 0 0 0 0 2 0 0 0 0 1 1 0 0 0 0 0 0 2 2 2 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 1 1 0 16
(U.S.) MN MINNESOTA 0 0 1 0 0 2 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 2 1 1 1 1 1 1 2 2 0 0 16
(U.S.) WI WISCONSIN 1 0 0 2 0 0 0 2 0 0 0 1 1 0 2 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 15
(U.S.) NC NORTH 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 1 0 0 0 0 0 0 3 2 0 2 0 0 1 1 2 1 1 14
(U.S.) KY KENTUCKY 0 0 1 0 0 0 0 0 0 2 0 0 0 1 0 1 1 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 11
(U.S.) CT CONNECTICUT 0 0 0 0 0 1 2 1 0 1 1 0 0 1 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 1 0 1 10
(U.S.) MA MASSACHUSETTS 0 0 0 2 2 0 1 0 0 1 1 2 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 10
(U.S.) KS KANSAS 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 0 0 0 0 2 0 0 0 1 9
(U.S.) OR OREGON 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 0 1 0 0 0 0 0 1 0 0 0 9
(U.S.) TN TENNESSEE 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 1 0 0 0 0 0 9
(U.S.) UT UTAH 0 0 0 0 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 0 0 0 0 0 0 1 0 0 1 0 0 1 8
(U.S.) OK OKLAHOMA 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 7
(U.S.) AL ALABAMA 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 0 0 1 1 0 2 0 6
(U.S.) GA GEORGIA 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 1 0 2 0 0 0 1 0 0 6
(U.S.) VT VERMONT 0 0 0 0 0 0 0 0 0 0 0 0 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 1 1 1 0 0 5
(U.S.) ID IDAHO 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 1 0 1 4
(U.S.) AR ARKANSAS 0 0 0 0 0 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 2 0 0 3
(U.S.) AZ ARIZONA 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 1 0 0 0 0 0 0 0 0 0 3
(U.S.) CO COLORADO 0 0 0 0 0 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 1 0 0 0 0 2
(U.S.) MS MISSISSIPPI 0 0 0 0 0 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 0 0 0 0 0 0 0 0 0 0 0 2
(U.S.) NV NEVADA 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 0 0 0 0 0 0 0 0 0 0 0 2
(U.S.) RI RHODE ISLAND 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
(U.S.) AK ALASKA 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 0 0 1
(U.S.) DE DELAWARE 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
(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 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 1 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 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 1
(U.S.) ND NORTH DAKOTA 0 0 0 0 0 0 0 0 0 0 0 0 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 1
(U.S.)   -- Subtotal -- 24 43 51 73 43 68 71 96 103 90 130 103 91 89 70 69 35 39 31 20 21 22 20 27 31 46 43 41 53 51 52 59 61 68 50 56 56 78 91 85 69 43 2462
(Foreign) DEX GERMANY 1 4 6 7 3 1 15 18 17 25 28 35 49 29 28 30 10 24 22 29 21 29 21 44 72 69 75 50 46 64 83 71 72 69 54 70 59 76 85 62 47 40 1660
(Foreign) JPX JAPAN 0 0 1 1 0 1 3 6 14 31 24 25 35 37 26 33 20 34 25 12 16 18 24 29 52 56 66 44 48 46 62 70 62 58 58 75 106 100 107 83 50 37 1595
(Foreign) GBX UNITED KINGDOM 2 3 9 15 7 9 12 17 26 23 23 26 22 20 13 12 9 20 18 13 7 14 10 8 11 15 10 12 10 1 4 7 8 8 6 5 3 10 9 8 9 4 478
(Foreign) FRX FRANCE 2 3 1 9 4 20 8 6 7 11 10 18 10 10 4 3 4 5 1 6 0 3 3 5 4 2 8 6 4 8 16 5 8 5 4 3 3 1 1 2 3 2 238
(Foreign) ITX ITALY 9 1 7 5 0 4 2 1 1 3 19 4 4 3 4 2 1 2 1 0 0 0 1 1 1 4 5 1 1 1 0 2 0 0 0 0 0 2 1 0 1 1 95
(Foreign) CAX CANADA 1 1 0 0 1 1 0 1 2 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 2 2 2 3 1 3 5 1 1 0 0 1 2 1 38
(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 1 0 0 1 0 1 0 0 3 2 9 4 2 2 4 3 3 2 37
(Foreign) SEX SWEDEN 1 0 0 0 0 1 0 1 1 1 2 0 3 2 2 2 4 2 0 0 0 0 0 3 2 1 0 2 0 1 1 0 0 0 0 0 0 2 0 2 1 0 37
(Foreign) CHX SWITZERLAND 0 0 0 0 0 0 2 1 3 1 2 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 1 0 0 0 1 2 1 0 0 0 0 0 0 0 17
(Foreign) AUX AUSTRALIA 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 3 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 0 11
(Foreign) TWX TAIWAN 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 1 1 1 1 0 0 1 1 1 0 1 0 0 0 2 11
(Foreign) ESX SPAIN 0 0 0 0 0 0 2 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
(Foreign) BEX BELGIUM 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 1 2 0 0 0 0 0 1 0 0 0 5
(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 1 0 0 0 0 0 0 0 0 0 0 1 1 0 3
(Foreign) ILX ISRAEL 0 0 0 0 0 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 1 0 0 0 0 0 0 0 0 0 3
(Foreign) MXX MEXICO 0 0 0 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 1 0 0 0 0 3
(Foreign) NOX NORWAY 0 0 0 0 0 0 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 0 0 0 0 0 2
(Foreign) PTX PORTUGAL 0 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 0 2
(Foreign) SUX U.S.S.R. 0 0 0 0 0 0 0 0 0 0 0 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 2
(Foreign) ARX ARGENTINA 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 0 1
(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 0 0 0 1 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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
(Foreign) DKX DENMARK 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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
(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 1 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) 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 0 0 0 0 0 0 0 0 0 1 0 0 0 1
(Foreign) IEX IRELAND 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 0 0 1
(Foreign) LBX LEBANON 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) 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) NLX NETHERLANDS 0 0 0 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
(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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
(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 0 0 0 0 0 0 0 0 0 0 0 1
(Foreign)   -- Subtotal -- 16 12 25 37 15 37 46 51 71 96 110 110 126 102 78 85 49 87 71 61 44 66 60 93 150 150 166 118 115 125 171 159 159 149 140 159 174 195 210 162 117 89 4256
(ALL) ALL All Regions, U.S. and Foreign 40 55 76 110 58 105 117 147 174 186 240 213 217 191 148 154 84 126 102 81 65 88 80 120 181 196 209 159 168 176 223 218 220 217 190 215 230 273 301 247 186 132 6718


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