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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 1998 - 2002 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 1998 1999 2000 2001 2002 Total
(U.S.) TX TEXAS 186 205 268 273 247 1179
(U.S.) OK OKLAHOMA 35 39 41 86 35 236
(U.S.) LA LOUISIANA 25 24 27 35 29 140
(U.S.) CA CALIFORNIA 21 15 10 14 12 72
(U.S.) AK ALASKA 4 6 11 6 2 29
(U.S.) CO COLORADO 8 7 6 7 1 29
(U.S.) NM NEW MEXICO 5 3 2 4 4 18
(U.S.) NY NEW YORK 2 7 1 1 3 14
(U.S.) CT CONNECTICUT 0 2 0 3 4 9
(U.S.) FL FLORIDA 1 1 0 4 3 9
(U.S.) KS KANSAS 1 3 1 2 2 9
(U.S.) MI MICHIGAN 3 2 0 1 2 8
(U.S.) NJ NEW JERSEY 0 0 3 4 1 8
(U.S.) WI WISCONSIN 2 1 1 1 2 7
(U.S.) IL ILLINOIS 3 2 1 0 0 6
(U.S.) MN MINNESOTA 3 2 0 1 0 6
(U.S.) NC NORTH CAROLINA 1 2 1 1 1 6
(U.S.) WA WASHINGTON 1 0 0 2 3 6
(U.S.) WY WYOMING 1 1 0 2 2 6
(U.S.) GA GEORGIA 1 0 1 2 1 5
(U.S.) PA PENNSYLVANIA 0 1 1 1 2 5
(U.S.) WV WEST VIRGINIA 0 0 0 0 5 5
(U.S.) ID IDAHO 0 1 2 1 0 4
(U.S.) KY KENTUCKY 0 0 1 2 1 4
(U.S.) MA MASSACHUSETTS 0 0 1 2 1 4
(U.S.) MO MISSOURI 0 1 1 2 0 4
(U.S.) OH OHIO 0 0 2 0 2 4
(U.S.) IA IOWA 1 0 1 1 0 3
(U.S.) AR ARKANSAS 0 0 0 0 2 2
(U.S.) MS MISSISSIPPI 2 0 0 0 0 2
(U.S.) UT UTAH 0 1 0 0 1 2
(U.S.) AZ ARIZONA 0 0 1 0 0 1
(U.S.) MD MARYLAND 0 0 0 0 1 1
(U.S.) NV NEVADA 0 0 0 0 1 1
(U.S.) OR OREGON 0 0 0 0 1 1
(U.S.) SC SOUTH CAROLINA 1 0 0 0 0 1
(U.S.) TN TENNESSEE 1 0 0 0 0 1
(U.S.) VA VIRGINIA 0 0 0 1 0 1
(U.S.)   -- Subtotal -- 308 326 384 459 371 1848
(Foreign) GBX UNITED KINGDOM 21 38 52 46 61 218
(Foreign) CAX CANADA 26 24 30 49 33 162
(Foreign) NOX NORWAY 5 7 16 26 11 65
(Foreign) FRX FRANCE 10 10 9 20 10 59
(Foreign) NLX NETHERLANDS 3 2 7 12 10 34
(Foreign) DEX GERMANY 5 2 2 5 9 23
(Foreign) BRX BRAZIL 1 1 3 1 4 10
(Foreign) VEX VENEZUELA 0 0 1 1 6 8
(Foreign) ITX ITALY 0 2 4 0 1 7
(Foreign) RUX RUSSIAN FEDERATION 0 1 0 3 1 5
(Foreign) SGX SINGAPORE 2 0 1 1 1 5
(Foreign) CHX SWITZERLAND 0 1 3 0 0 4
(Foreign) AEX ARAB EMIRATES 0 1 0 1 1 3
(Foreign) CNX CHINA P.REP. 0 1 0 1 1 3
(Foreign) FIX FINLAND 0 0 1 0 2 3
(Foreign) ARX ARGENTINA 0 1 0 1 0 2
(Foreign) AUX AUSTRALIA 1 0 0 1 0 2
(Foreign) JPX JAPAN 0 2 0 0 0 2
(Foreign) MXX MEXICO 0 0 0 1 1 2
(Foreign) BEX BELGIUM 1 0 0 0 0 1
(Foreign) EGX EGYPT 0 0 0 0 1 1
(Foreign) IDX INDONESIA 0 1 0 0 0 1
(Foreign) ILX ISRAEL 0 0 0 1 0 1
(Foreign) MYX MALAYSIA 1 0 0 0 0 1
(Foreign) NZX NEW ZEALAND 1 0 0 0 0 1
(Foreign) SAX SAUDI ARABIA 0 0 1 0 0 1
(Foreign) SEX SWEDEN 0 1 0 0 0 1
(Foreign) THX THAILAND 0 0 0 1 0 1
(Foreign)   -- Subtotal -- 77 95 130 171 153 626
(ALL) ALL All Regions, U.S. and Foreign 385 421 514 630 524 2474


PTMD Contacts

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tel: (703) 306-2600
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email: oeip@uspto.gov

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