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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 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 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.) TX TEXAS 273 247 296 357 247 1420
(U.S.) OK OKLAHOMA 86 35 64 62 60 307
(U.S.) LA LOUISIANA 35 29 21 13 24 122
(U.S.) CA CALIFORNIA 14 12 18 13 10 67
(U.S.) NM NEW MEXICO 4 4 6 3 3 20
(U.S.) WV WEST VIRGINIA 0 5 4 6 5 20
(U.S.) CO COLORADO 7 1 2 6 3 19
(U.S.) CT CONNECTICUT 3 4 3 2 4 16
(U.S.) AK ALASKA 6 2 3 2 0 13
(U.S.) KS KANSAS 2 2 4 1 3 12
(U.S.) PA PENNSYLVANIA 1 2 4 1 4 12
(U.S.) FL FLORIDA 4 3 3 0 1 11
(U.S.) MI MICHIGAN 1 2 3 1 4 11
(U.S.) WY WYOMING 2 2 1 2 4 11
(U.S.) WA WASHINGTON 2 3 2 0 2 9
(U.S.) NJ NEW JERSEY 4 1 1 2 0 8
(U.S.) OH OHIO 0 2 2 2 2 8
(U.S.) NY NEW YORK 1 3 1 0 2 7
(U.S.) WI WISCONSIN 1 2 2 1 1 7
(U.S.) GA GEORGIA 2 1 1 0 2 6
(U.S.) ID IDAHO 1 0 2 3 0 6
(U.S.) MO MISSOURI 2 0 2 2 0 6
(U.S.) KY KENTUCKY 2 1 2 0 0 5
(U.S.) MA MASSACHUSETTS 2 1 1 1 0 5
(U.S.) UT UTAH 0 1 0 2 2 5
(U.S.) AR ARKANSAS 0 2 0 1 0 3
(U.S.) MN MINNESOTA 1 0 0 2 0 3
(U.S.) ME MAINE 0 0 0 2 0 2
(U.S.) MS MISSISSIPPI 0 0 0 0 2 2
(U.S.) NC NORTH CAROLINA 1 1 0 0 0 2
(U.S.) IA IOWA 1 0 0 0 0 1
(U.S.) IN INDIANA 0 0 0 1 0 1
(U.S.) MD MARYLAND 0 1 0 0 0 1
(U.S.) NV NEVADA 0 1 0 0 0 1
(U.S.) OR OREGON 0 1 0 0 0 1
(U.S.) SC SOUTH CAROLINA 0 0 1 0 0 1
(U.S.) SD SOUTH DAKOTA 0 0 1 0 0 1
(U.S.) VA VIRGINIA 1 0 0 0 0 1
(U.S.)   -- Subtotal -- 459 371 450 488 385 2153
(Foreign) GBX UNITED KINGDOM 46 61 50 64 44 265
(Foreign) CAX CANADA 49 33 30 36 37 185
(Foreign) NOX NORWAY 26 11 18 9 13 77
(Foreign) NLX NETHERLANDS 12 10 8 11 10 51
(Foreign) FRX FRANCE 20 10 5 5 6 46
(Foreign) DEX GERMANY 5 9 8 7 5 34
(Foreign) VEX VENEZUELA 1 6 4 3 1 15
(Foreign) BRX BRAZIL 1 4 6 0 2 13
(Foreign) RUX RUSSIAN FEDERATION 3 1 1 5 1 11
(Foreign) SGX SINGAPORE 1 1 1 4 2 9
(Foreign) CNX CHINA P.REP. 1 1 2 2 0 6
(Foreign) AEX ARAB EMIRATES 1 1 0 2 1 5
(Foreign) AUX AUSTRALIA 1 0 3 0 1 5
(Foreign) BEX BELGIUM 0 0 2 2 1 5
(Foreign) ITX ITALY 0 1 2 1 0 4
(Foreign) MXX MEXICO 1 1 1 0 0 3
(Foreign) FIX FINLAND 0 2 0 0 0 2
(Foreign) IDX INDONESIA 0 0 1 0 1 2
(Foreign) ILX ISRAEL 1 0 1 0 0 2
(Foreign) SAX SAUDI ARABIA 0 0 0 2 0 2
(Foreign) UAX UKRAINE 0 0 0 0 2 2
(Foreign) ARX ARGENTINA 1 0 0 0 0 1
(Foreign) DKX DENMARK 0 0 0 1 0 1
(Foreign) ECX ECUADOR 0 0 0 1 0 1
(Foreign) EGX EGYPT 0 1 0 0 0 1
(Foreign) JPX JAPAN 0 0 1 0 0 1
(Foreign) NGX NIGERIA 0 0 1 0 0 1
(Foreign) OMX OMAN 0 0 0 0 1 1
(Foreign) SEX SWEDEN 0 0 0 1 0 1
(Foreign) THX THAILAND 1 0 0 0 0 1
(Foreign)   -- Subtotal -- 171 153 145 156 128 753
(ALL) ALL All Regions, U.S. and Foreign 630 524 595 644 513 2906


PTMB Contacts

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

address of PTMB pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
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