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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

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

Count of 2000 - 2004 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 2000 2001 2002 2003 2004 Total
(U.S.) TX TEXAS 268 273 247 296 357 1441
(U.S.) OK OKLAHOMA 41 86 35 64 62 288
(U.S.) LA LOUISIANA 27 35 29 21 13 125
(U.S.) CA CALIFORNIA 10 14 12 18 13 67
(U.S.) AK ALASKA 11 6 2 3 2 24
(U.S.) CO COLORADO 6 7 1 2 6 22
(U.S.) NM NEW MEXICO 2 4 4 6 3 19
(U.S.) WV WEST VIRGINIA 0 0 5 4 6 15
(U.S.) CT CONNECTICUT 0 3 4 3 2 12
(U.S.) NJ NEW JERSEY 3 4 1 1 2 11
(U.S.) FL FLORIDA 0 4 3 3 0 10
(U.S.) KS KANSAS 1 2 2 4 1 10
(U.S.) PA PENNSYLVANIA 1 1 2 4 1 9
(U.S.) ID IDAHO 2 1 0 2 3 8
(U.S.) OH OHIO 2 0 2 2 2 8
(U.S.) MI MICHIGAN 0 1 2 3 1 7
(U.S.) MO MISSOURI 1 2 0 2 2 7
(U.S.) WA WASHINGTON 0 2 3 2 0 7
(U.S.) WI WISCONSIN 1 1 2 2 1 7
(U.S.) WY WYOMING 0 2 2 1 2 7
(U.S.) KY KENTUCKY 1 2 1 2 0 6
(U.S.) MA MASSACHUSETTS 1 2 1 1 1 6
(U.S.) NY NEW YORK 1 1 3 1 0 6
(U.S.) GA GEORGIA 1 2 1 1 0 5
(U.S.) AR ARKANSAS 0 0 2 0 1 3
(U.S.) MN MINNESOTA 0 1 0 0 2 3
(U.S.) NC NORTH CAROLINA 1 1 1 0 0 3
(U.S.) UT UTAH 0 0 1 0 2 3
(U.S.) IA IOWA 1 1 0 0 0 2
(U.S.) ME MAINE 0 0 0 0 2 2
(U.S.) AZ ARIZONA 1 0 0 0 0 1
(U.S.) IL ILLINOIS 1 0 0 0 0 1
(U.S.) IN INDIANA 0 0 0 0 1 1
(U.S.) MD MARYLAND 0 0 1 0 0 1
(U.S.) NV NEVADA 0 0 1 0 0 1
(U.S.) OR OREGON 0 0 1 0 0 1
(U.S.) SC SOUTH CAROLINA 0 0 0 1 0 1
(U.S.) SD SOUTH DAKOTA 0 0 0 1 0 1
(U.S.) VA VIRGINIA 0 1 0 0 0 1
(U.S.)   -- Subtotal -- 384 459 371 450 488 2152
(Foreign) GBX UNITED KINGDOM 52 46 61 50 64 273
(Foreign) CAX CANADA 30 49 33 30 36 178
(Foreign) NOX NORWAY 16 26 11 18 9 80
(Foreign) FRX FRANCE 9 20 10 5 5 49
(Foreign) NLX NETHERLANDS 7 12 10 8 11 48
(Foreign) DEX GERMANY 2 5 9 8 7 31
(Foreign) VEX VENEZUELA 1 1 6 4 3 15
(Foreign) BRX BRAZIL 3 1 4 6 0 14
(Foreign) RUX RUSSIAN FEDERATION 0 3 1 1 5 10
(Foreign) ITX ITALY 4 0 1 2 1 8
(Foreign) SGX SINGAPORE 1 1 1 1 4 8
(Foreign) CNX CHINA P.REP. 0 1 1 2 2 6
(Foreign) AEX ARAB EMIRATES 0 1 1 0 2 4
(Foreign) AUX AUSTRALIA 0 1 0 3 0 4
(Foreign) BEX BELGIUM 0 0 0 2 2 4
(Foreign) CHX SWITZERLAND 3 0 0 0 0 3
(Foreign) FIX FINLAND 1 0 2 0 0 3
(Foreign) MXX MEXICO 0 1 1 1 0 3
(Foreign) SAX SAUDI ARABIA 1 0 0 0 2 3
(Foreign) ILX ISRAEL 0 1 0 1 0 2
(Foreign) ARX ARGENTINA 0 1 0 0 0 1
(Foreign) DKX DENMARK 0 0 0 0 1 1
(Foreign) ECX ECUADOR 0 0 0 0 1 1
(Foreign) EGX EGYPT 0 0 1 0 0 1
(Foreign) IDX INDONESIA 0 0 0 1 0 1
(Foreign) JPX JAPAN 0 0 0 1 0 1
(Foreign) NGX NIGERIA 0 0 0 1 0 1
(Foreign) SEX SWEDEN 0 0 0 0 1 1
(Foreign) THX THAILAND 0 1 0 0 0 1
(Foreign)   -- Subtotal -- 130 171 153 145 156 755
(ALL) ALL All Regions, U.S. and Foreign 514 630 524 595 644 2907


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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

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


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