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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 2011 - 2015 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 by year of patent grant.
(U.S. or Foreign) Code State-Territory or Country 2011 2012 2013 2014 2015 Total
(U.S.) OH OHIO 19 6 8 10 6 49
(U.S.) NY NEW YORK 11 10 2 4 9 36
(U.S.) MI MICHIGAN 10 6 4 5 7 32
(U.S.) IL ILLINOIS 0 8 4 6 8 26
(U.S.) TX TEXAS 1 4 0 7 6 18
(U.S.) GA GEORGIA 0 4 3 1 5 13
(U.S.) CA CALIFORNIA 2 3 1 3 2 11
(U.S.) CT CONNECTICUT 3 3 1 1 0 8
(U.S.) WI WISCONSIN 1 0 3 0 4 8
(U.S.) AR ARKANSAS 2 3 1 1 0 7
(U.S.) KY KENTUCKY 0 2 0 2 3 7
(U.S.) AZ ARIZONA 0 0 4 2 1 7
(U.S.) MN MINNESOTA 0 3 0 1 2 6
(U.S.) MA MASSACHUSETTS 1 1 0 2 1 5
(U.S.) TN TENNESSEE 1 0 1 0 3 5
(U.S.) CO COLORADO 1 0 1 1 2 5
(U.S.) WA WASHINGTON 1 1 1 0 1 4
(U.S.) OK OKLAHOMA 0 1 2 0 0 3
(U.S.) PA PENNSYLVANIA 0 1 1 1 0 3
(U.S.) NC NORTH CAROLINA 0 0 0 0 2 2
(U.S.) OR OREGON 0 0 0 1 1 2
(U.S.) VA VIRGINIA 1 0 0 0 1 2
(U.S.) MD MARYLAND 0 2 0 0 0 2
(U.S.) MO MISSOURI 0 0 0 2 0 2
(U.S.) MT MONTANA 0 0 0 0 1 1
(U.S.) NH NEW HAMPSHIRE 0 0 0 0 1 1
(U.S.) MS MISSISSIPPI 0 0 0 0 1 1
(U.S.) ID IDAHO 0 0 0 1 0 1
(U.S.) IA IOWA 0 0 0 1 0 1
(U.S.) FL FLORIDA 0 1 0 0 0 1
(U.S.)   -- Subtotal -- 54 59 37 52 67 269
 
(Foreign) JPX JAPAN 37 63 69 61 72 302
(Foreign) DEX GERMANY 15 9 13 18 30 85
(Foreign) KRX KOREA, SOUTH 9 8 14 14 23 68
(Foreign) CAX CANADA 7 4 8 3 6 28
(Foreign) GBX UNITED KINGDOM 4 1 4 10 6 25
(Foreign) FRX FRANCE 2 1 4 4 13 24
(Foreign) ITX ITALY 2 5 5 3 5 20
(Foreign) CNX CHINA, PEOPLE'S REPUBLIC OF 4 0 3 3 3 13
(Foreign) DKX DENMARK 2 4 1 1 2 10
(Foreign) TWX TAIWAN 0 0 1 4 2 7
(Foreign) RUX RUSSIAN FEDERATION 1 4 0 0 1 6
(Foreign) NOX NORWAY 0 0 4 0 1 5
(Foreign) ATX AUSTRIA 0 0 2 0 2 4
(Foreign) AUX AUSTRALIA 1 0 1 2 0 4
(Foreign) SGX SINGAPORE 1 1 0 2 0 4
(Foreign) INX INDIA 0 1 0 0 3 4
(Foreign) BEX BELGIUM 0 1 0 1 2 4
(Foreign) CHX SWITZERLAND 1 0 2 0 0 3
(Foreign) NZX NEW ZEALAND 0 0 0 1 1 2
(Foreign) BRX BRAZIL 0 0 1 0 1 2
(Foreign) HKX CHINA, HONG KONG S.A.R. 0 0 0 1 0 1
(Foreign) TRX TURKEY 0 0 1 0 0 1
(Foreign) ESX SPAIN 1 0 0 0 0 1
(Foreign) SEX SWEDEN 0 1 0 0 0 1
(Foreign) SKX SLOVAKIA 0 0 0 0 1 1
(Foreign) CZX CZECH REPUBLIC 0 0 0 1 0 1
(Foreign) HRX CROATIA 1 0 0 0 0 1
(Foreign) PTX PORTUGAL 0 1 0 0 0 1
(Foreign) ARX ARGENTINA 0 0 0 1 0 1
(Foreign) FIX FINLAND 0 1 0 0 0 1
(Foreign) KWX KUWAIT 0 0 0 1 0 1
(Foreign)   -- Subtotal -- 88 105 133 131 174 631
 
(ALL) ALL All Regions, U.S. and Foreign 142 164 170 183 241 900



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