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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 166, Wells (shafts or deep borings in the earth, e.g., for oil and gas)

( 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.) TX TEXAS 357 247 385 339 350 1678
(U.S.) OK OKLAHOMA 62 60 128 115 99 464
(U.S.) LA LOUISIANA 13 24 26 36 31 130
(U.S.) CA CALIFORNIA 13 10 13 11 9 56
(U.S.) CO COLORADO 6 3 8 8 16 41
(U.S.) WV WEST VIRGINIA 6 5 9 5 4 29
(U.S.) UT UTAH 2 2 7 8 6 25
(U.S.) WA WASHINGTON 0 2 7 2 4 15
(U.S.) CT CONNECTICUT 2 4 3 0 4 13
(U.S.) NM NEW MEXICO 3 3 1 3 3 13
(U.S.) PA PENNSYLVANIA 1 4 2 2 4 13
(U.S.) WY WYOMING 2 4 3 3 1 13
(U.S.) GA GEORGIA 0 2 5 1 2 10
(U.S.) NY NEW YORK 0 2 3 4 1 10
(U.S.) ID IDAHO 3 0 3 2 0 8
(U.S.) KS KANSAS 1 3 1 0 2 7
(U.S.) MA MASSACHUSETTS 1 0 3 1 2 7
(U.S.) MI MICHIGAN 1 4 1 0 1 7
(U.S.) MO MISSOURI 2 0 0 4 1 7
(U.S.) AK ALASKA 2 0 0 1 2 5
(U.S.) ME MAINE 2 0 0 2 1 5
(U.S.) MN MINNESOTA 2 0 1 1 1 5
(U.S.) NJ NEW JERSEY 2 0 0 0 3 5
(U.S.) OH OHIO 2 2 0 0 1 5
(U.S.) WI WISCONSIN 1 1 1 0 2 5
(U.S.) FL FLORIDA 0 1 1 1 1 4
(U.S.) AZ ARIZONA 0 0 0 2 1 3
(U.S.) IL ILLINOIS 0 0 1 0 2 3
(U.S.) MS MISSISSIPPI 0 2 0 0 0 2
(U.S.) OR OREGON 0 0 0 2 0 2
(U.S.) RI RHODE ISLAND 0 0 1 0 1 2
(U.S.) AL ALABAMA 0 0 0 1 0 1
(U.S.) AR ARKANSAS 1 0 0 0 0 1
(U.S.) IA IOWA 0 0 0 1 0 1
(U.S.) IN INDIANA 1 0 0 0 0 1
(U.S.) KY KENTUCKY 0 0 0 0 1 1
(U.S.) MD MARYLAND 0 0 0 1 0 1
(U.S.) MT MONTANA 0 0 0 1 0 1
(U.S.) NC NORTH CAROLINA 0 0 1 0 0 1
(U.S.) ND NORTH DAKOTA 0 0 0 0 1 1
(U.S.) SD SOUTH DAKOTA 0 0 0 0 1 1
(U.S.) VA VIRGINIA 0 0 0 0 1 1
(U.S.)   -- Subtotal -- 488 385 614 557 559 2603
(Foreign) GBX UNITED KINGDOM 64 44 78 55 52 293
(Foreign) CAX CANADA 36 37 49 53 41 216
(Foreign) NOX NORWAY 9 14 18 28 18 87
(Foreign) NLX NETHERLANDS 11 10 22 16 10 69
(Foreign) FRX FRANCE 5 6 10 9 9 39
(Foreign) DEX GERMANY 7 5 13 8 4 37
(Foreign) RUX RUSSIAN FEDERATION 5 1 6 5 2 19
(Foreign) BRX BRAZIL 0 2 2 2 8 14
(Foreign) SGX SINGAPORE 4 2 4 1 2 13
(Foreign) SAX SAUDI ARABIA 2 0 0 3 6 11
(Foreign) UAX UKRAINE 0 2 5 1 2 10
(Foreign) JPX JAPAN 0 0 2 2 3 7
(Foreign) AUX AUSTRALIA 0 1 1 0 4 6
(Foreign) ITX ITALY 1 0 2 1 2 6
(Foreign) VEX VENEZUELA 3 1 0 1 1 6
(Foreign) AEX UNITED ARAB EMIRATES 2 1 1 0 1 5
(Foreign) CNX CHINA, PEOPLE'S REPUBLIC OF 2 0 1 2 0 5
(Foreign) MYX MALAYSIA 0 0 1 2 2 5
(Foreign) BEX BELGIUM 2 1 1 0 0 4
(Foreign) DKX DENMARK 1 0 1 1 1 4
(Foreign) ECX ECUADOR 1 0 2 1 0 4
(Foreign) OMX OMAN 0 1 0 0 3 4
(Foreign) ARX ARGENTINA 0 0 0 0 3 3
(Foreign) IDX INDONESIA 0 1 0 1 1 3
(Foreign) MXX MEXICO 0 0 1 1 1 3
(Foreign) ROX ROMANIA 0 0 0 0 2 2
(Foreign) THX THAILAND 0 0 1 0 1 2
(Foreign) AZX AZERBAIJAN 0 0 1 0 0 1
(Foreign) CHX SWITZERLAND 0 0 1 0 0 1
(Foreign) GAX GABON 0 0 0 1 0 1
(Foreign) HRX CROATIA 0 0 0 1 0 1
(Foreign) IMX ISLE OF MAN 0 0 0 0 1 1
(Foreign) KRX KOREA, SOUTH 0 0 0 0 1 1
(Foreign) MCX MONACO 0 0 0 1 0 1
(Foreign) QAX QATAR 0 0 0 0 1 1
(Foreign) SEX SWEDEN 1 0 0 0 0 1
(Foreign) TWX TAIWAN 0 0 0 0 1 1
(Foreign) ZAX SOUTH AFRICA 0 0 1 0 0 1
(Foreign)   -- Subtotal -- 156 129 224 196 183 888
(ALL) ALL All Regions, U.S. and Foreign 644 514 838 753 742 3491


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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