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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 418, Rotary Expansible Chamber Devices

( 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.) AR ARKANSAS 15 14 7 5 3 44
(U.S.) MI MICHIGAN 5 8 9 13 5 40
(U.S.) NY NEW YORK 10 6 7 6 4 33
(U.S.) OH OHIO 12 7 5 3 0 27
(U.S.) TX TEXAS 9 2 3 1 2 17
(U.S.) VA VIRGINIA 5 6 2 1 0 14
(U.S.) NC NORTH CAROLINA 4 2 3 2 1 12
(U.S.) MN MINNESOTA 2 2 2 3 0 9
(U.S.) IA IOWA 1 1 2 1 2 7
(U.S.) IL ILLINOIS 1 3 0 2 1 7
(U.S.) IN INDIANA 1 2 2 1 1 7
(U.S.) TN TENNESSEE 0 1 0 5 1 7
(U.S.) CA CALIFORNIA 4 0 0 2 0 6
(U.S.) CT CONNECTICUT 2 2 1 1 0 6
(U.S.) FL FLORIDA 0 2 3 0 1 6
(U.S.) KY KENTUCKY 2 2 1 0 1 6
(U.S.) SC SOUTH CAROLINA 4 1 0 0 0 5
(U.S.) WA WASHINGTON 0 1 2 1 1 5
(U.S.) MA MASSACHUSETTS 0 0 0 2 2 4
(U.S.) MO MISSOURI 0 0 1 2 1 4
(U.S.) NJ NEW JERSEY 3 0 1 0 0 4
(U.S.) WI WISCONSIN 1 0 0 1 2 4
(U.S.) GA GEORGIA 1 0 0 2 0 3
(U.S.) OK OKLAHOMA 1 2 0 0 0 3
(U.S.) PA PENNSYLVANIA 1 1 0 0 1 3
(U.S.) KS KANSAS 2 0 0 0 0 2
(U.S.) LA LOUISIANA 0 1 0 1 0 2
(U.S.) AL ALABAMA 0 0 0 1 0 1
(U.S.) AZ ARIZONA 0 0 1 0 0 1
(U.S.) ID IDAHO 0 1 0 0 0 1
(U.S.) MD MARYLAND 1 0 0 0 0 1
(U.S.) NH NEW HAMPSHIRE 0 0 1 0 0 1
(U.S.) NM NEW MEXICO 1 0 0 0 0 1
(U.S.) UT UTAH 1 0 0 0 0 1
(U.S.)   -- Subtotal -- 89 67 53 56 29 294
(Foreign) JPX JAPAN 80 45 61 35 33 254
(Foreign) DEX GERMANY 17 18 23 15 9 82
(Foreign) KRX SOUTH KOREA 5 6 4 9 8 32
(Foreign) TWX TAIWAN 9 5 4 5 2 25
(Foreign) GBX UNITED KINGDOM 10 4 2 3 1 20
(Foreign) NLX NETHERLANDS 2 5 2 2 0 11
(Foreign) CAX CANADA 1 3 2 1 2 9
(Foreign) CHX SWITZERLAND 3 3 1 2 0 9
(Foreign) DKX DENMARK 2 0 2 3 2 9
(Foreign) FRX FRANCE 0 2 3 1 3 9
(Foreign) ATX AUSTRIA 1 1 4 1 1 8
(Foreign) SEX SWEDEN 2 2 2 2 0 8
(Foreign) AUX AUSTRALIA 3 2 0 0 2 7
(Foreign) ITX ITALY 1 1 0 3 1 6
(Foreign) RUX RUSSIAN FEDERATION 2 1 2 0 0 5
(Foreign) CNX CHINA P.REP. 1 2 0 1 0 4
(Foreign) BEX BELGIUM 0 1 0 1 1 3
(Foreign) FJX FIJI 0 0 2 1 0 3
(Foreign) FIX FINLAND 1 0 0 0 1 2
(Foreign) NOX NORWAY 1 1 0 0 0 2
(Foreign) CZX CZECH REPUBLIC 0 1 0 0 0 1
(Foreign) ESX SPAIN 0 0 1 0 0 1
(Foreign) ILX ISRAEL 0 0 0 1 0 1
(Foreign) PTX PORTUGAL 1 0 0 0 0 1
(Foreign)   -- Subtotal -- 142 103 115 86 66 512
(ALL) ALL All Regions, U.S. and Foreign 231 170 168 142 95 806


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
ftp download of selected PTMB reports and materials from : ftp.uspto.gov/pub/taf/


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