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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 1998 - 2002 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 )

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 1998 1999 2000 2001 2002 Total
(U.S.) MI MICHIGAN 7 17 19 23 3 69
(U.S.) CA CALIFORNIA 14 13 13 6 15 61
(U.S.) OH OHIO 10 13 16 11 6 56
(U.S.) TX TEXAS 9 10 11 14 11 55
(U.S.) PA PENNSYLVANIA 5 8 2 5 8 28
(U.S.) FL FLORIDA 4 10 4 7 2 27
(U.S.) IL ILLINOIS 4 6 9 3 4 26
(U.S.) IN INDIANA 1 3 5 3 4 16
(U.S.) MN MINNESOTA 1 4 4 7 0 16
(U.S.) NY NEW YORK 5 4 6 1 0 16
(U.S.) MA MASSACHUSETTS 0 2 6 3 1 12
(U.S.) TN TENNESSEE 0 4 2 3 3 12
(U.S.) CO COLORADO 4 3 2 1 1 11
(U.S.) NC NORTH CAROLINA 5 2 3 0 1 11
(U.S.) OK OKLAHOMA 3 4 2 2 0 11
(U.S.) WA WASHINGTON 1 3 2 2 1 9
(U.S.) MO MISSOURI 2 2 2 0 2 8
(U.S.) NJ NEW JERSEY 1 1 1 2 3 8
(U.S.) AZ ARIZONA 1 3 2 0 1 7
(U.S.) CT CONNECTICUT 2 2 1 1 1 7
(U.S.) LA LOUISIANA 2 2 1 1 0 6
(U.S.) UT UTAH 0 1 2 2 0 5
(U.S.) WI WISCONSIN 1 2 0 0 2 5
(U.S.) NH NEW HAMPSHIRE 0 2 0 1 1 4
(U.S.) NV NEVADA 0 2 0 1 1 4
(U.S.) OR OREGON 0 1 1 0 2 4
(U.S.) SC SOUTH CAROLINA 0 0 1 2 1 4
(U.S.) VA VIRGINIA 0 3 0 0 1 4
(U.S.) GA GEORGIA 0 0 2 1 0 3
(U.S.) IA IOWA 1 0 2 0 0 3
(U.S.) ME MAINE 2 0 0 1 0 3
(U.S.) RI RHODE ISLAND 0 0 1 0 2 3
(U.S.) AK ALASKA 1 0 1 0 0 2
(U.S.) DE DELAWARE 0 0 0 1 1 2
(U.S.) MD MARYLAND 1 0 1 0 0 2
(U.S.) NM NEW MEXICO 1 0 1 0 0 2
(U.S.) VT VERMONT 0 2 0 0 0 2
(U.S.) AL ALABAMA 0 1 0 0 0 1
(U.S.) AR ARKANSAS 0 0 0 0 1 1
(U.S.) HI HAWAII 0 1 0 0 0 1
(U.S.) ID IDAHO 0 0 0 1 0 1
(U.S.) KY KENTUCKY 0 1 0 0 0 1
(U.S.) ND NORTH DAKOTA 0 0 1 0 0 1
(U.S.) NE NEBRASKA 0 1 0 0 0 1
(U.S.)   -- Subtotal -- 88 133 126 105 79 531
(Foreign) JPX JAPAN 24 37 50 31 30 172
(Foreign) DEX GERMANY 7 21 32 24 19 103
(Foreign) FRX FRANCE 7 10 20 16 11 64
(Foreign) GBX UNITED KINGDOM 10 8 17 9 13 57
(Foreign) CAX CANADA 11 7 9 5 7 39
(Foreign) TWX TAIWAN 6 5 2 4 1 18
(Foreign) ITX ITALY 3 3 1 2 5 14
(Foreign) NOX NORWAY 2 3 2 3 0 10
(Foreign) SEX SWEDEN 2 1 5 0 2 10
(Foreign) AUX AUSTRALIA 1 2 2 3 0 8
(Foreign) NLX NETHERLANDS 2 2 2 1 1 8
(Foreign) CHX SWITZERLAND 3 1 2 1 0 7
(Foreign) KRX SOUTH KOREA 0 0 1 2 2 5
(Foreign) ATX AUSTRIA 1 1 0 2 0 4
(Foreign) BRX BRAZIL 2 1 0 1 0 4
(Foreign) DKX DENMARK 0 0 1 2 1 4
(Foreign) FIX FINLAND 0 1 1 1 1 4
(Foreign) BEX BELGIUM 0 0 0 1 2 3
(Foreign) CNX CHINA P.REP. 0 0 0 2 0 2
(Foreign) ESX SPAIN 1 0 0 0 1 2
(Foreign) ILX ISRAEL 0 1 0 0 1 2
(Foreign) MXX MEXICO 1 1 0 0 0 2
(Foreign) ZAX SOUTH AFRICA 0 1 1 0 0 2
(Foreign) HKX CHINA,HONG KONG S.A.R. 1 0 0 0 0 1
(Foreign) HUX HUNGARY 0 0 0 1 0 1
(Foreign) IEX IRELAND 0 1 0 0 0 1
(Foreign) THX THAILAND 0 0 0 0 1 1
(Foreign)   -- Subtotal -- 84 107 148 111 98 548
(ALL) ALL All Regions, U.S. and Foreign 172 240 274 216 177 1079


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