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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

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

Count of 1963 - 2005 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 138, Pipes and Tubular Conduits

( 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 )

This table displays U.S. states and countries and their counts of utility patents; 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 2005 Total
(U.S.) CA CALIFORNIA 12 15 11 18 12 17 22 21 19 16 14 16 19 22 10 16 11 16 13 17 15 11 7 7 13 9 6 3 6 4 3 4 9 1 4 14 13 13 6 15 6 3 7 496
(U.S.) OH OHIO 13 12 12 14 16 15 11 16 13 11 8 16 18 8 12 2 6 6 5 6 8 3 7 8 7 1 4 4 3 5 1 3 3 4 9 10 13 16 11 6 5 6 5 362
(U.S.) TX TEXAS 3 9 6 3 10 5 5 5 9 3 8 4 7 6 6 3 14 8 16 8 8 6 8 4 8 3 4 2 8 3 4 9 8 8 8 9 10 11 14 11 10 6 8 308
(U.S.) IL ILLINOIS 6 6 7 12 13 6 9 9 10 10 12 15 12 1 9 6 8 5 11 4 3 17 4 5 7 5 4 1 5 2 3 3 1 2 3 4 6 9 3 4 9 0 2 273
(U.S.) MI MICHIGAN 9 7 3 9 0 3 7 7 8 4 4 14 7 4 1 1 3 1 3 3 0 2 2 2 1 5 4 2 5 1 4 8 5 9 7 7 17 19 23 3 6 6 7 243
(U.S.) PA PENNSYLVANIA 8 10 7 10 9 1 13 6 10 5 1 14 3 4 7 6 2 1 4 2 5 7 4 0 4 7 3 0 3 1 4 2 7 6 7 5 8 2 5 8 3 5 3 222
(U.S.) NY NEW YORK 13 14 11 16 15 5 13 17 4 1 3 3 6 7 1 2 4 3 4 3 4 4 4 2 2 3 5 3 3 1 0 3 1 1 1 5 4 6 1 0 2 1 2 203
(U.S.) NJ NEW JERSEY 6 8 8 6 4 3 10 10 8 11 5 12 6 5 5 2 4 4 3 2 2 2 1 3 0 1 2 2 1 0 0 2 3 3 3 1 1 1 2 3 1 2 1 159
(U.S.) FL FLORIDA 1 0 0 0 0 2 0 1 2 1 3 2 0 1 0 3 2 3 2 1 1 1 1 1 4 1 4 0 3 6 3 6 3 2 0 4 10 4 7 2 2 6 5 100
(U.S.) MA MASSACHUSETTS 2 4 3 2 3 2 2 4 5 5 4 1 2 1 2 0 1 4 3 1 1 0 1 1 1 1 0 1 1 2 4 3 3 2 0 0 2 6 3 1 2 4 5 95
(U.S.) OK OKLAHOMA 3 4 5 1 6 2 4 2 4 2 4 4 2 0 2 1 4 2 3 0 7 1 1 0 4 1 1 0 1 1 1 1 2 2 0 3 4 2 2 0 2 0 1 92
(U.S.) MN MINNESOTA 1 2 1 2 2 2 2 1 1 2 3 3 3 3 1 2 0 0 2 1 2 2 3 2 1 1 1 2 2 0 2 2 0 5 2 1 4 4 7 0 2 2 5 86
(U.S.) CT CONNECTICUT 7 3 2 2 7 3 2 2 2 3 6 2 4 3 2 1 0 2 1 0 1 4 0 2 3 1 1 2 2 0 0 1 2 3 1 2 2 1 1 1 0 0 0 84
(U.S.) CO COLORADO 2 0 1 1 2 1 2 3 1 0 1 2 4 2 2 5 1 4 2 2 0 4 0 2 3 1 2 1 1 0 1 1 1 2 2 4 3 2 1 1 4 3 2 79
(U.S.) WI WISCONSIN 3 5 1 2 3 3 2 4 3 2 3 3 2 1 3 2 2 0 3 1 2 1 0 1 0 2 0 0 1 1 1 3 3 1 1 1 2 0 0 2 2 1 3 76
(U.S.) IN INDIANA 1 0 1 1 1 1 2 5 4 6 0 4 2 2 3 0 2 2 0 1 2 0 0 0 5 1 4 0 3 0 2 0 0 2 2 1 3 5 3 4 0 0 0 75
(U.S.) NC NORTH CAROLINA 3 1 0 1 2 1 2 0 1 3 1 1 2 2 2 1 0 2 1 1 1 1 1 1 1 1 0 4 1 1 1 1 2 1 0 5 2 3 0 1 1 1 1 58
(U.S.) MO MISSOURI 4 0 1 2 1 3 1 0 3 0 2 2 1 1 0 0 2 0 1 0 1 0 0 1 2 2 1 0 0 2 2 2 1 2 0 2 2 2 0 2 3 5 0 56
(U.S.) WA WASHINGTON 3 0 2 0 1 0 3 0 0 0 0 0 1 3 0 0 0 2 0 0 0 1 0 1 2 1 1 1 3 1 1 0 3 1 1 1 3 2 2 1 1 2 1 45
(U.S.) LA LOUISIANA 1 0 0 2 2 0 2 1 5 0 0 2 0 0 0 1 1 0 0 1 0 2 0 1 1 0 1 1 1 2 1 1 1 2 0 2 2 1 1 0 1 1 0 40
(U.S.) SC SOUTH CAROLINA 0 2 2 0 0 1 2 3 3 1 1 2 2 2 0 0 0 1 2 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 3 0 1 37
(U.S.) VA VIRGINIA 2 0 2 1 3 1 3 1 1 0 1 1 2 2 1 1 1 0 1 2 0 0 0 0 0 0 0 0 2 1 0 0 1 0 1 0 3 0 0 1 1 0 1 37
(U.S.) TN TENNESSEE 1 0 1 0 2 0 0 1 2 0 0 0 1 0 0 0 1 0 0 0 0 1 1 0 0 1 0 0 1 2 0 1 0 1 1 0 4 2 3 3 1 1 4 36
(U.S.) MD MARYLAND 3 1 0 2 3 0 3 3 3 0 0 3 1 0 0 0 0 1 0 0 0 0 1 0 2 0 0 1 1 1 0 1 0 0 0 1 0 1 0 0 2 0 0 34
(U.S.) AZ ARIZONA 0 0 0 3 0 0 0 1 0 0 2 0 1 1 0 0 1 1 1 1 0 0 0 1 1 0 1 0 0 1 0 0 0 0 1 1 3 2 0 1 2 1 1 28
(U.S.) DE DELAWARE 0 3 1 1 0 1 1 4 3 0 2 1 0 2 0 0 1 1 1 0 0 0 0 0 0 1 0 0 0 0 1 1 0 1 0 0 0 0 0 1 0 0 1 28
(U.S.) GA GEORGIA 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 1 2 0 1 1 0 0 1 2 0 2 2 3 1 2 1 0 0 0 2 1 0 1 0 0 28
(U.S.) IA IOWA 0 0 1 0 0 0 0 1 0 0 1 1 3 0 0 1 1 1 0 1 0 0 1 1 0 1 0 1 0 0 1 0 1 0 0 1 0 2 0 0 0 1 0 21
(U.S.) OR OREGON 1 0 0 0 0 0 0 1 0 1 0 0 1 0 0 1 1 0 1 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 0 0 1 1 0 2 0 1 0 20
(U.S.) KS KANSAS 0 0 0 2 2 4 0 1 2 1 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 18
(U.S.) UT UTAH 0 0 0 1 0 0 0 1 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 1 2 2 0 2 1 0 16
(U.S.) AL ALABAMA 1 0 0 1 1 0 2 0 0 0 0 0 2 0 1 2 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 14
(U.S.) NH NEW HAMPSHIRE 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 1 1 0 0 0 0 0 2 0 2 0 1 1 0 1 0 14
(U.S.) KY KENTUCKY 1 0 0 0 2 0 1 0 0 1 2 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 13
(U.S.) NM NEW MEXICO 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 1 1 1 0 1 0 1 0 0 0 0 0 13
(U.S.) RI RHODE ISLAND 1 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 1 0 0 1 0 0 1 0 2 0 0 0 11
(U.S.) AR ARKANSAS 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 1 1 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 9
(U.S.) NE NEBRASKA 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 2 0 0 1 0 0 0 0 0 2 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 9
(U.S.) NV NEVADA 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 0 1 0 1 0 0 1 0 2 0 1 1 0 0 0 9
(U.S.) ME MAINE 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 2 0 0 1 0 0 0 0 8
(U.S.) WV WEST VIRGINIA 0 0 0 0 0 0 1 0 1 0 1 0 1 0 0 0 0 1 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 7
(U.S.) SD SOUTH DAKOTA 0 0 1 0 0 0 0 0 0 0 0 2 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 0 0 0 5
(U.S.) HI HAWAII 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 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 4
(U.S.) AK ALASKA 0 0 0 0 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 1 0 0 0 0 0 3
(U.S.) DC DISTRICT OF COLUMBIA 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 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.) ID IDAHO 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 1 0 0 0 0 1 0 0 0 0 3
(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 0 0 0 0 1 0 3
(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 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2
(U.S.) MT MONTANA 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2
(U.S.) WY WYOMING 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 0 0 0 0 2
(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 0 1 0 0 0 0 0 1
(U.S.) PR PUERTO RICO 0 0 0 0 0 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
(U.S.)   -- Subtotal -- 113 107 93 117 122 82 128 137 132 91 92 132 118 87 74 61 74 73 88 65 66 76 51 51 77 53 57 38 63 43 44 62 66 67 59 88 133 126 104 79 74 61 67 3591
(Foreign) JPX JAPAN 1 3 1 3 3 4 8 1 6 3 6 5 10 11 6 6 7 9 7 7 8 14 10 12 7 16 20 16 13 12 14 15 12 18 19 24 37 50 31 30 22 29 28 564
(Foreign) DEX GERMANY 2 0 2 2 3 4 9 6 15 8 12 13 15 7 8 13 11 12 18 13 12 11 12 15 14 11 10 11 15 9 8 5 19 5 5 7 21 32 24 19 18 18 19 493
(Foreign) FRX FRANCE 6 1 3 0 6 2 5 4 9 14 6 4 10 8 4 3 4 5 8 8 3 7 1 6 6 7 9 4 4 0 3 9 8 4 7 7 10 20 16 11 12 7 12 283
(Foreign) GBX UNITED KINGDOM 6 2 6 3 8 0 12 7 4 6 3 14 9 4 5 5 6 5 3 3 7 8 6 5 4 4 3 1 0 1 3 9 6 4 3 10 8 17 9 13 9 2 8 251
(Foreign) CAX CANADA 1 2 3 1 1 1 2 2 3 2 2 3 9 3 3 1 2 2 2 2 3 2 0 4 3 2 2 1 1 4 5 5 5 5 4 11 7 9 5 7 3 6 3 144
(Foreign) SEX SWEDEN 0 2 1 1 1 4 0 1 1 1 0 4 5 4 1 0 3 3 3 0 3 1 1 2 2 1 0 2 1 1 0 2 1 0 0 2 1 5 0 2 4 3 0 69
(Foreign) NLX NETHERLANDS 1 0 0 0 1 0 0 1 1 2 1 0 1 1 3 5 1 4 2 2 1 5 0 0 0 2 4 1 1 0 0 0 2 0 0 2 2 2 1 1 1 1 1 53
(Foreign) CHX SWITZERLAND 0 2 0 0 0 3 2 2 2 0 1 0 0 2 0 1 2 1 2 0 1 1 1 0 3 1 2 1 3 0 1 1 2 4 1 3 1 2 1 0 0 2 0 51
(Foreign) ITX ITALY 1 1 0 1 0 1 1 1 0 1 2 3 2 1 0 1 1 1 0 1 0 0 1 0 2 2 0 0 1 1 0 2 2 0 2 3 3 1 2 5 1 1 2 50
(Foreign) AUX AUSTRALIA 0 0 0 0 1 0 1 0 2 1 0 2 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0 1 0 1 1 0 0 1 2 1 2 2 3 0 1 1 1 27
(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 0 0 0 1 0 0 1 0 1 6 5 2 4 1 2 0 3 26
(Foreign) NOX NORWAY 0 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 1 2 0 0 1 2 0 0 1 0 0 0 0 2 3 2 3 0 0 0 0 22
(Foreign) DKX DENMARK 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 1 1 2 0 1 0 0 0 0 1 0 1 0 0 1 2 1 2 1 2 19
(Foreign) BEX BELGIUM 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 1 0 0 1 0 0 1 0 0 0 0 0 0 1 0 0 0 0 1 2 0 0 4 16
(Foreign) FIX FINLAND 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 2 2 0 1 1 1 1 1 0 1 15
(Foreign) ATX AUSTRIA 0 0 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 1 0 1 1 1 0 2 0 0 0 0 14
(Foreign) HUX HUNGARY 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 1 1 1 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 11
(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 0 0 0 0 0 0 0 0 0 1 2 2 1 0 1 0 1 1 1 10
(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 1 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 1 1 10
(Foreign) ILX ISRAEL 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 2 0 0 9
(Foreign) SUX U.S.S.R. 0 0 0 0 0 0 0 0 0 0 1 1 1 0 1 0 1 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
(Foreign) ESX SPAIN 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 0 0 0 0 1 0 1 0 0 0 1 1 0 0 6
(Foreign) ZAX SOUTH AFRICA 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 1 0 0 0 0 1 1 0 0 0 0 0 6
(Foreign) MXX MEXICO 0 0 0 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 1 1 0 0 0 0 1 0 5
(Foreign) GRX GREECE 0 0 0 0 1 0 0 0 0 0 0 0 2 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 4
(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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 3
(Foreign) MCX MONACO 0 0 0 0 0 0 0 0 0 0 0 1 0 0 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 3
(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 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2
(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 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1
(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 0 0 0 0 1 0 0 0 0 0 0 1
(Foreign) INX INDIA 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 0 0 0 0 1
(Foreign) LUX LUXEMBOURG 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 0 1
(Foreign) PLX POLAND 0 0 0 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) THX THAILAND 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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) VEX VENEZUELA 0 0 0 0 0 0 0 0 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)   -- Subtotal -- 19 14 17 13 26 20 40 26 44 39 36 51 67 42 34 36 39 47 49 39 42 52 35 50 47 50 54 44 42 32 37 49 61 46 51 84 107 148 111 98 83 74 86 2181
(ALL) ALL All Regions, U.S. and Foreign 132 121 110 130 148 102 168 163 176 130 128 183 185 129 108 97 113 120 137 104 108 128 86 101 124 103 111 82 105 75 81 111 127 113 110 172 240 274 215 177 157 135 153 5772


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Electronic Information Products Division - PTMB
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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