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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 2001 - 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 165, Heat Exchange

( 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 2001 2002 2003 2004 2005 Total
(U.S.) CA CALIFORNIA 20 18 13 29 38 118
(U.S.) NY NEW YORK 18 14 21 20 13 86
(U.S.) MI MICHIGAN 22 13 15 15 10 75
(U.S.) PA PENNSYLVANIA 6 12 11 16 14 59
(U.S.) TX TEXAS 11 12 10 12 12 57
(U.S.) WI WISCONSIN 6 11 4 8 11 40
(U.S.) IL ILLINOIS 12 6 4 5 6 33
(U.S.) MA MASSACHUSETTS 7 6 5 7 7 32
(U.S.) OH OHIO 4 4 6 9 4 27
(U.S.) CO COLORADO 2 5 3 9 7 26
(U.S.) CT CONNECTICUT 6 5 5 2 4 22
(U.S.) FL FLORIDA 5 6 4 5 2 22
(U.S.) AZ ARIZONA 6 2 4 1 5 18
(U.S.) NH NEW HAMPSHIRE 3 1 3 6 5 18
(U.S.) OR OREGON 7 6 2 3 0 18
(U.S.) MD MARYLAND 1 4 2 3 6 16
(U.S.) NJ NEW JERSEY 2 3 3 4 4 16
(U.S.) IN INDIANA 0 1 1 5 8 15
(U.S.) MN MINNESOTA 4 2 2 3 4 15
(U.S.) VA VIRGINIA 1 2 2 3 6 14
(U.S.) TN TENNESSEE 3 2 1 4 3 13
(U.S.) WA WASHINGTON 2 2 0 5 4 13
(U.S.) RI RHODE ISLAND 0 2 3 2 3 10
(U.S.) NC NORTH CAROLINA 1 1 2 3 2 9
(U.S.) OK OKLAHOMA 3 2 1 0 1 7
(U.S.) IA IOWA 0 0 4 1 1 6
(U.S.) MO MISSOURI 1 0 0 3 2 6
(U.S.) GA GEORGIA 1 2 1 0 1 5
(U.S.) NM NEW MEXICO 1 2 1 1 0 5
(U.S.) SC SOUTH CAROLINA 1 0 2 1 1 5
(U.S.) KY KENTUCKY 2 0 1 1 0 4
(U.S.) AL ALABAMA 1 0 0 1 1 3
(U.S.) ID IDAHO 1 0 1 1 0 3
(U.S.) KS KANSAS 1 1 1 0 0 3
(U.S.) LA LOUISIANA 0 1 0 1 1 3
(U.S.) MS MISSISSIPPI 2 0 1 0 0 3
(U.S.) DE DELAWARE 2 0 0 0 0 2
(U.S.) ND NORTH DAKOTA 1 0 0 0 1 2
(U.S.) NV NEVADA 1 0 0 1 0 2
(U.S.) SD SOUTH DAKOTA 2 0 0 0 0 2
(U.S.) WV WEST VIRGINIA 1 1 0 0 0 2
(U.S.) UT UTAH 0 1 0 0 0 1
(U.S.) VT VERMONT 1 0 0 0 0 1
(U.S.)   -- Subtotal -- 171 150 139 190 187 837
(Foreign) JPX JAPAN 115 93 66 83 83 440
(Foreign) TWX TAIWAN 30 38 31 52 52 203
(Foreign) DEX GERMANY 37 30 42 26 39 174
(Foreign) FRX FRANCE 13 22 28 10 11 84
(Foreign) KRX SOUTH KOREA 3 9 9 16 14 51
(Foreign) CAX CANADA 12 5 4 13 11 45
(Foreign) SEX SWEDEN 8 6 5 5 5 29
(Foreign) GBX UNITED KINGDOM 6 5 4 3 4 22
(Foreign) FIX FINLAND 3 3 3 4 1 14
(Foreign) ITX ITALY 4 4 0 3 3 14
(Foreign) CNX CHINA P.REP. 1 2 3 4 2 12
(Foreign) CHX SWITZERLAND 2 1 1 2 2 8
(Foreign) ILX ISRAEL 3 1 1 0 2 7
(Foreign) INX INDIA 0 0 4 3 0 7
(Foreign) NLX NETHERLANDS 1 1 0 2 2 6
(Foreign) AUX AUSTRALIA 0 2 0 1 0 3
(Foreign) BEX BELGIUM 2 0 0 0 1 3
(Foreign) DKX DENMARK 0 0 0 0 2 2
(Foreign) HUX HUNGARY 2 0 0 0 0 2
(Foreign) NOX NORWAY 1 0 1 0 0 2
(Foreign) SGX SINGAPORE 1 0 1 0 0 2
(Foreign) ATX AUSTRIA 1 0 0 0 0 1
(Foreign) BRX BRAZIL 1 0 0 0 0 1
(Foreign) CZX CZECH REPUBLIC 0 0 1 0 0 1
(Foreign) ESX SPAIN 0 1 0 0 0 1
(Foreign) HKX CHINA,HONG KONG S.A.R. 0 0 0 0 1 1
(Foreign) KWX KUWAIT 1 0 0 0 0 1
(Foreign) LUX LUXEMBOURG 1 0 0 0 0 1
(Foreign) NZX NEW ZEALAND 0 0 1 0 0 1
(Foreign) PLX POLAND 0 0 1 0 0 1
(Foreign) RUX RUSSIAN FEDERATION 0 0 0 0 1 1
(Foreign) SAX SAUDI ARABIA 0 0 0 0 1 1
(Foreign)   -- Subtotal -- 248 223 206 227 237 1141
(ALL) ALL All Regions, U.S. and Foreign 419 373 345 417 424 1978


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Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
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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