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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 431, Combustion

( 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 17 15 14 12 6 64
(U.S.) TX TEXAS 2 16 8 3 4 33
(U.S.) PA PENNSYLVANIA 8 7 3 4 1 23
(U.S.) IL ILLINOIS 8 6 5 0 1 20
(U.S.) OK OKLAHOMA 8 5 3 2 2 20
(U.S.) OH OHIO 6 6 1 3 2 18
(U.S.) NY NEW YORK 11 3 0 0 1 15
(U.S.) CT CONNECTICUT 5 5 3 1 0 14
(U.S.) MN MINNESOTA 1 4 2 5 2 14
(U.S.) FL FLORIDA 2 5 1 1 1 10
(U.S.) GA GEORGIA 5 2 0 2 1 10
(U.S.) MA MASSACHUSETTS 3 1 2 1 3 10
(U.S.) WI WISCONSIN 2 0 0 3 5 10
(U.S.) MO MISSOURI 3 2 4 0 0 9
(U.S.) IN INDIANA 1 4 0 1 0 6
(U.S.) NC NORTH CAROLINA 1 1 1 1 2 6
(U.S.) NJ NEW JERSEY 3 2 0 1 0 6
(U.S.) MI MICHIGAN 2 2 1 0 0 5
(U.S.) MD MARYLAND 1 2 0 0 1 4
(U.S.) NH NEW HAMPSHIRE 1 0 2 1 0 4
(U.S.) OR OREGON 1 1 0 2 0 4
(U.S.) AZ ARIZONA 1 1 0 0 1 3
(U.S.) KS KANSAS 2 0 1 0 0 3
(U.S.) KY KENTUCKY 1 0 0 2 0 3
(U.S.) NM NEW MEXICO 3 0 0 0 0 3
(U.S.) NV NEVADA 0 0 1 2 0 3
(U.S.) RI RHODE ISLAND 0 2 0 1 0 3
(U.S.) WA WASHINGTON 0 1 1 0 1 3
(U.S.) IA IOWA 1 1 0 0 0 2
(U.S.) ID IDAHO 0 0 0 1 1 2
(U.S.) SC SOUTH CAROLINA 1 1 0 0 0 2
(U.S.) TN TENNESSEE 2 0 0 0 0 2
(U.S.) VA VIRGINIA 0 1 0 0 1 2
(U.S.) WV WEST VIRGINIA 0 1 1 0 0 2
(U.S.) CO COLORADO 0 1 0 0 0 1
(U.S.) ME MAINE 0 0 1 0 0 1
(U.S.) NE NEBRASKA 0 1 0 0 0 1
(U.S.) SD SOUTH DAKOTA 0 0 0 1 0 1
(U.S.) WY WYOMING 0 1 0 0 0 1
(U.S.)   -- Subtotal -- 102 100 55 50 36 343
(Foreign) DEX GERMANY 15 13 10 4 6 48
(Foreign) JPX JAPAN 11 18 9 2 1 41
(Foreign) TWX TAIWAN 4 9 5 1 1 20
(Foreign) FRX FRANCE 6 3 5 2 0 16
(Foreign) CNX CHINA, PEOPLE'S REPUBLIC OF 6 3 2 2 2 15
(Foreign) KRX KOREA, SOUTH 7 4 2 2 0 15
(Foreign) CAX CANADA 3 2 2 5 2 14
(Foreign) CHX SWITZERLAND 6 3 0 2 2 13
(Foreign) ITX ITALY 4 2 3 1 0 10
(Foreign) HKX CHINA,HONG KONG S.A.R. 3 1 1 2 1 8
(Foreign) NLX NETHERLANDS 5 1 0 0 2 8
(Foreign) GBX UNITED KINGDOM 1 2 2 1 1 7
(Foreign) VGX BRITISH VIRGIN ISLANDS 0 3 1 1 0 5
(Foreign) AUX AUSTRALIA 2 1 0 1 0 4
(Foreign) ESX SPAIN 1 1 2 0 0 4
(Foreign) SEX SWEDEN 1 1 1 0 0 3
(Foreign) BEX BELGIUM 0 1 0 0 1 2
(Foreign) PTX PORTUGAL 1 0 1 0 0 2
(Foreign) SAX SAUDI ARABIA 0 0 0 1 1 2
(Foreign) CZX CZECH REPUBLIC 1 0 0 0 0 1
(Foreign) DKX DENMARK 1 0 0 0 0 1
(Foreign) ILX ISRAEL 0 1 0 0 0 1
(Foreign) MXX MEXICO 0 0 1 0 0 1
(Foreign) MYX MALAYSIA 1 0 0 0 0 1
(Foreign) NOX NORWAY 0 0 0 0 1 1
(Foreign)   -- Subtotal -- 79 69 47 27 21 243
(ALL) ALL All Regions, U.S. and Foreign 181 169 102 77 57 586


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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