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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 1999 - 2003 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 055, Gas Separation

( 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 1999 2000 2001 2002 2003 Total
(U.S.) MN MINNESOTA 14 11 10 12 11 58
(U.S.) CA CALIFORNIA 11 4 9 7 8 39
(U.S.) OH OHIO 6 7 4 10 7 34
(U.S.) WI WISCONSIN 2 4 7 12 7 32
(U.S.) NY NEW YORK 4 7 6 7 5 29
(U.S.) PA PENNSYLVANIA 6 4 7 8 1 26
(U.S.) IL ILLINOIS 4 8 4 4 5 25
(U.S.) MA MASSACHUSETTS 2 4 4 5 3 18
(U.S.) NC NORTH CAROLINA 6 6 2 2 2 18
(U.S.) TX TEXAS 2 4 4 2 4 16
(U.S.) KY KENTUCKY 3 5 3 3 1 15
(U.S.) FL FLORIDA 2 5 0 3 3 13
(U.S.) MI MICHIGAN 2 1 4 2 3 12
(U.S.) TN TENNESSEE 4 3 0 5 0 12
(U.S.) IN INDIANA 1 1 0 5 4 11
(U.S.) KS KANSAS 1 1 2 3 3 10
(U.S.) MO MISSOURI 1 3 2 3 1 10
(U.S.) CO COLORADO 2 1 2 2 2 9
(U.S.) CT CONNECTICUT 3 3 1 1 1 9
(U.S.) VA VIRGINIA 1 0 0 0 8 9
(U.S.) AZ ARIZONA 2 4 1 0 0 7
(U.S.) MD MARYLAND 0 0 3 3 1 7
(U.S.) WA WASHINGTON 0 5 1 1 0 7
(U.S.) MS MISSISSIPPI 0 1 2 3 0 6
(U.S.) NE NEBRASKA 1 0 1 2 0 4
(U.S.) NJ NEW JERSEY 0 0 2 1 1 4
(U.S.) OK OKLAHOMA 1 1 1 0 1 4
(U.S.) SC SOUTH CAROLINA 1 2 0 1 0 4
(U.S.) UT UTAH 2 0 1 0 1 4
(U.S.) DE DELAWARE 1 2 0 0 0 3
(U.S.) AL ALABAMA 0 0 1 1 0 2
(U.S.) GA GEORGIA 0 0 1 1 0 2
(U.S.) ID IDAHO 0 0 0 2 0 2
(U.S.) NH NEW HAMPSHIRE 1 0 1 0 0 2
(U.S.) NV NEVADA 0 1 1 0 0 2
(U.S.) RI RHODE ISLAND 1 0 1 0 0 2
(U.S.) WV WEST VIRGINIA 0 1 1 0 0 2
(U.S.) AR ARKANSAS 1 0 0 0 0 1
(U.S.) IA IOWA 0 0 0 0 1 1
(U.S.) LA LOUISIANA 0 1 0 0 0 1
(U.S.) NM NEW MEXICO 1 0 0 0 0 1
(U.S.) OR OREGON 1 0 0 0 0 1
(U.S.)   -- Subtotal -- 90 100 89 111 84 474
(Foreign) DEX GERMANY 18 21 24 20 26 109
(Foreign) JPX JAPAN 15 19 13 23 15 85
(Foreign) CAX CANADA 5 4 8 9 6 32
(Foreign) KRX SOUTH KOREA 3 4 3 6 16 32
(Foreign) GBX UNITED KINGDOM 4 3 2 9 5 23
(Foreign) TWX TAIWAN 3 3 8 1 5 20
(Foreign) SEX SWEDEN 4 3 6 1 3 17
(Foreign) BEX BELGIUM 1 4 1 3 0 9
(Foreign) FRX FRANCE 1 1 3 2 1 8
(Foreign) CHX SWITZERLAND 2 2 1 0 0 5
(Foreign) FIX FINLAND 1 1 1 1 1 5
(Foreign) ITX ITALY 1 1 1 0 2 5
(Foreign) ATX AUSTRIA 1 1 1 1 0 4
(Foreign) ILX ISRAEL 0 0 4 0 0 4
(Foreign) NLX NETHERLANDS 1 1 1 1 0 4
(Foreign) DKX DENMARK 0 1 2 0 0 3
(Foreign) AUX AUSTRALIA 0 0 1 1 0 2
(Foreign) ESX SPAIN 0 0 0 0 2 2
(Foreign) SGX SINGAPORE 0 0 0 1 1 2
(Foreign) CNX CHINA P.REP. 0 0 0 0 1 1
(Foreign) IEX IRELAND 0 1 0 0 0 1
(Foreign) INX INDIA 0 0 0 0 1 1
(Foreign) NZX NEW ZEALAND 0 0 1 0 0 1
(Foreign)   -- Subtotal -- 60 70 81 79 85 375
(ALL) ALL All Regions, U.S. and Foreign 150 170 170 190 169 849

PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
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Alexandria VA 22313

tel: (703) 306-2600
fax: (703) 306-2737
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
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