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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

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

Count of 2007 - 2011 Utility Patent Grants,
As Distributed 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 a 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 either by year of patent grant or by year of patent application.
(U.S. or Foreign) Code State-Territory or Country 2007 2008 2009 2010 2011 Total
(U.S.) OH OHIO 7 7 7 4 19 44
(U.S.) MI MICHIGAN 5 3 8 4 10 30
(U.S.) NY NEW YORK 2 4 4 7 11 28
(U.S.) AR ARKANSAS 5 2 1 2 2 12
(U.S.) TX TEXAS 2 2 1 4 1 10
(U.S.) FL FLORIDA 2 0 3 2 0 7
(U.S.) CA CALIFORNIA 0 2 1 1 2 6
(U.S.) IL ILLINOIS 0 1 2 2 0 5
(U.S.) MA MASSACHUSETTS 4 0 0 0 1 5
(U.S.) WA WASHINGTON 2 0 2 0 1 5
(U.S.) KY KENTUCKY 1 1 1 1 0 4
(U.S.) WI WISCONSIN 0 0 2 1 1 4
(U.S.) CT CONNECTICUT 0 0 0 0 3 3
(U.S.) MN MINNESOTA 1 0 1 1 0 3
(U.S.) IA IOWA 0 1 0 1 0 2
(U.S.) IN INDIANA 1 1 0 0 0 2
(U.S.) NC NORTH CAROLINA 2 0 0 0 0 2
(U.S.) TN TENNESSEE 1 0 0 0 1 2
(U.S.) AL ALABAMA 1 0 0 0 0 1
(U.S.) AZ ARIZONA 0 1 0 0 0 1
(U.S.) CO COLORADO 0 0 0 0 1 1
(U.S.) KS KANSAS 0 0 0 1 0 1
(U.S.) MD MARYLAND 0 1 0 0 0 1
(U.S.) OK OKLAHOMA 0 1 0 0 0 1
(U.S.) PA PENNSYLVANIA 0 0 0 1 0 1
(U.S.) VA VIRGINIA 0 0 0 0 1 1
(U.S.)   -- Subtotal -- 36 27 33 32 54 182
(Foreign) JPX JAPAN 44 55 66 53 37 255
(Foreign) KRX KOREA, SOUTH 17 22 14 17 9 79
(Foreign) DEX GERMANY 8 15 11 15 15 64
(Foreign) CAX CANADA 1 2 2 6 7 18
(Foreign) GBX UNITED KINGDOM 5 3 3 3 4 18
(Foreign) FRX FRANCE 1 1 4 4 2 12
(Foreign) TWX TAIWAN 4 3 3 2 0 12
(Foreign) CNX CHINA, PEOPLE'S REPUBLIC OF 0 0 0 3 4 7
(Foreign) ITX ITALY 2 0 2 0 2 6
(Foreign) AUX AUSTRALIA 0 1 1 1 1 4
(Foreign) DKX DENMARK 0 1 0 1 2 4
(Foreign) BEX BELGIUM 0 0 1 2 0 3
(Foreign) CHX SWITZERLAND 0 1 1 0 1 3
(Foreign) RUX RUSSIAN FEDERATION 1 0 1 0 1 3
(Foreign) SEX SWEDEN 1 0 1 1 0 3
(Foreign) CZX CZECH REPUBLIC 0 0 1 1 0 2
(Foreign) ILX ISRAEL 0 0 1 1 0 2
(Foreign) SGX SINGAPORE 0 0 0 1 1 2
(Foreign) UAX UKRAINE 0 0 2 0 0 2
(Foreign) BRX BRAZIL 0 1 0 0 0 1
(Foreign) ESX SPAIN 0 0 0 0 1 1
(Foreign) FIX FINLAND 1 0 0 0 0 1
(Foreign) HRX CROATIA 0 0 0 0 1 1
(Foreign) NLX NETHERLANDS 0 0 0 1 0 1
(Foreign) NOX NORWAY 0 0 0 1 0 1
(Foreign) PLX POLAND 0 1 0 0 0 1
(Foreign)   -- Subtotal -- 85 106 114 113 88 506
(ALL) ALL All Regions, U.S. and Foreign 121 133 147 145 142 688


PTMT Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

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

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT materials available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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