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

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

Count of 2004 - 2008 Utility Patent Grants,
As Distributed 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 a 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 either by year of patent grant or by year of patent application.
(U.S. or Foreign) Code State-Territory or Country 2004 2005 2006 2007 2008 Total
(U.S.) CA CALIFORNIA 29 38 54 27 13 161
(U.S.) NY NEW YORK 20 13 20 22 18 93
(U.S.) MI MICHIGAN 15 10 23 8 9 65
(U.S.) PA PENNSYLVANIA 16 14 25 3 1 59
(U.S.) TX TEXAS 12 12 22 9 4 59
(U.S.) WI WISCONSIN 8 11 11 7 6 43
(U.S.) OH OHIO 9 4 8 5 7 33
(U.S.) MA MASSACHUSETTS 7 7 3 6 3 26
(U.S.) IN INDIANA 5 8 6 4 2 25
(U.S.) IL ILLINOIS 5 6 6 2 3 22
(U.S.) CO COLORADO 9 7 1 2 2 21
(U.S.) CT CONNECTICUT 2 4 3 7 5 21
(U.S.) VA VIRGINIA 3 6 7 3 2 21
(U.S.) MN MINNESOTA 3 4 8 2 3 20
(U.S.) MD MARYLAND 3 6 4 5 1 19
(U.S.) WA WASHINGTON 5 4 4 3 2 18
(U.S.) AZ ARIZONA 1 5 8 1 2 17
(U.S.) FL FLORIDA 5 2 6 3 1 17
(U.S.) NH NEW HAMPSHIRE 6 5 2 4 0 17
(U.S.) NJ NEW JERSEY 4 4 1 5 3 17
(U.S.) OR OREGON 3 0 5 1 2 11
(U.S.) TN TENNESSEE 4 3 2 0 2 11
(U.S.) NC NORTH CAROLINA 3 2 1 2 1 9
(U.S.) RI RHODE ISLAND 2 3 2 2 0 9
(U.S.) GA GEORGIA 0 1 5 1 1 8
(U.S.) MO MISSOURI 3 2 0 0 1 6
(U.S.) IA IOWA 1 1 2 0 1 5
(U.S.) KY KENTUCKY 1 0 4 0 0 5
(U.S.) AL ALABAMA 1 1 0 2 0 4
(U.S.) OK OKLAHOMA 0 1 1 2 0 4
(U.S.) LA LOUISIANA 1 1 1 0 0 3
(U.S.) SC SOUTH CAROLINA 1 1 0 1 0 3
(U.S.) NM NEW MEXICO 1 0 0 1 0 2
(U.S.) NV NEVADA 1 0 1 0 0 2
(U.S.) DE DELAWARE 0 0 1 0 0 1
(U.S.) ID IDAHO 1 0 0 0 0 1
(U.S.) ME MAINE 0 0 0 1 0 1
(U.S.) MS MISSISSIPPI 0 0 0 0 1 1
(U.S.) MT MONTANA 0 0 1 0 0 1
(U.S.) ND NORTH DAKOTA 0 1 0 0 0 1
(U.S.)   -- Subtotal -- 190 187 248 141 96 862
(Foreign) JPX JAPAN 83 83 102 82 52 402
(Foreign) TWX TAIWAN 52 52 76 35 29 244
(Foreign) DEX GERMANY 26 39 36 26 20 147
(Foreign) KRX KOREA, SOUTH 16 14 15 16 12 73
(Foreign) CAX CANADA 13 11 14 14 7 59
(Foreign) FRX FRANCE 10 11 11 10 3 45
(Foreign) CNX CHINA, PEOPLE'S REPUBLIC OF 4 2 9 9 15 39
(Foreign) SEX SWEDEN 5 5 5 7 7 29
(Foreign) GBX UNITED KINGDOM 3 4 5 5 1 18
(Foreign) FIX FINLAND 4 1 4 1 2 12
(Foreign) ITX ITALY 3 3 2 2 2 12
(Foreign) CHX SWITZERLAND 2 2 3 2 0 9
(Foreign) NLX NETHERLANDS 2 2 2 2 1 9
(Foreign) INX INDIA 3 0 1 1 1 6
(Foreign) DKX DENMARK 0 2 1 1 1 5
(Foreign) AUX AUSTRALIA 1 0 2 1 0 4
(Foreign) ILX ISRAEL 0 2 1 1 0 4
(Foreign) SGX SINGAPORE 0 0 3 0 0 3
(Foreign) ATX AUSTRIA 0 0 1 0 1 2
(Foreign) BEX BELGIUM 0 1 1 0 0 2
(Foreign) HKX CHINA,HONG KONG S.A.R. 0 1 0 0 1 2
(Foreign) BGX BULGARIA 0 0 0 1 0 1
(Foreign) MXX MEXICO 0 0 1 0 0 1
(Foreign) NOX NORWAY 0 0 0 1 0 1
(Foreign) PLX POLAND 0 0 0 0 1 1
(Foreign) RUX RUSSIAN FEDERATION 0 1 0 0 0 1
(Foreign) SAX SAUDI ARABIA 0 1 0 0 0 1
(Foreign) ZAX SOUTH AFRICA 0 0 0 1 0 1
(Foreign)   -- Subtotal -- 227 237 295 218 156 1133
(ALL) ALL All Regions, U.S. and Foreign 417 424 543 359 252 1995


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

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

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMT reports and materials from : ftp.uspto.gov/pub/taf/


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