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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 2000 - 2004 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 219, Electric Heating

( 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 2000 2001 2002 2003 2004 Total
(U.S.) CA CALIFORNIA 74 95 103 71 73 416
(U.S.) OH OHIO 49 58 46 60 47 260
(U.S.) MI MICHIGAN 38 42 32 38 43 193
(U.S.) NY NEW YORK 45 41 39 38 25 188
(U.S.) WI WISCONSIN 37 38 33 30 36 174
(U.S.) MA MASSACHUSETTS 22 18 29 27 31 127
(U.S.) TX TEXAS 40 32 18 10 11 111
(U.S.) IL ILLINOIS 23 19 23 18 17 100
(U.S.) TN TENNESSEE 10 19 18 19 20 86
(U.S.) NC NORTH CAROLINA 20 23 15 12 13 83
(U.S.) FL FLORIDA 18 19 14 9 13 73
(U.S.) MN MINNESOTA 15 12 13 13 14 67
(U.S.) PA PENNSYLVANIA 14 16 11 9 14 64
(U.S.) CT CONNECTICUT 15 10 13 10 9 57
(U.S.) NH NEW HAMPSHIRE 11 5 16 8 15 55
(U.S.) SC SOUTH CAROLINA 15 12 12 7 6 52
(U.S.) IN INDIANA 17 15 7 8 3 50
(U.S.) WA WASHINGTON 12 10 7 14 7 50
(U.S.) AZ ARIZONA 2 12 10 8 16 48
(U.S.) NJ NEW JERSEY 9 6 6 14 9 44
(U.S.) ID IDAHO 12 7 11 5 6 41
(U.S.) MO MISSOURI 11 11 6 2 8 38
(U.S.) NV NEVADA 8 2 4 11 13 38
(U.S.) VA VIRGINIA 4 5 12 10 7 38
(U.S.) KY KENTUCKY 5 5 4 7 12 33
(U.S.) GA GEORGIA 9 6 3 2 5 25
(U.S.) CO COLORADO 4 5 0 6 8 23
(U.S.) IA IOWA 7 3 2 3 6 21
(U.S.) OR OREGON 1 3 5 6 6 21
(U.S.) MD MARYLAND 3 2 4 4 6 19
(U.S.) NM NEW MEXICO 3 3 6 4 3 19
(U.S.) AL ALABAMA 2 4 5 0 6 17
(U.S.) UT UTAH 3 3 2 2 4 14
(U.S.) VT VERMONT 1 3 2 1 4 11
(U.S.) KS KANSAS 1 0 2 3 2 8
(U.S.) LA LOUISIANA 0 3 2 0 3 8
(U.S.) MS MISSISSIPPI 0 2 2 3 1 8
(U.S.) OK OKLAHOMA 3 1 2 0 1 7
(U.S.) DE DELAWARE 4 1 1 0 0 6
(U.S.) RI RHODE ISLAND 3 1 1 1 0 6
(U.S.) AR ARKANSAS 1 0 0 2 2 5
(U.S.) NE NEBRASKA 0 2 1 0 1 4
(U.S.) MT MONTANA 1 0 2 0 0 3
(U.S.) ND NORTH DAKOTA 1 2 0 0 0 3
(U.S.) SD SOUTH DAKOTA 0 0 0 2 1 3
(U.S.) DC DISTRICT OF COLUMBIA 0 0 0 2 0 2
(U.S.) HI HAWAII 0 0 2 0 0 2
(U.S.) ME MAINE 0 2 0 0 0 2
(U.S.) WV WEST VIRGINIA 1 0 1 0 0 2
(U.S.) AK ALASKA 1 0 0 0 0 1
(U.S.) WY WYOMING 0 0 0 0 1 1
(U.S.)   -- Subtotal -- 575 578 547 499 528 2727
(Foreign) JPX JAPAN 238 230 224 219 211 1122
(Foreign) DEX GERMANY 96 94 87 97 83 457
(Foreign) KRX SOUTH KOREA 52 34 54 37 76 253
(Foreign) FRX FRANCE 36 32 28 33 22 151
(Foreign) CAX CANADA 30 24 27 20 15 116
(Foreign) TWX TAIWAN 17 23 27 24 22 113
(Foreign) GBX UNITED KINGDOM 24 24 17 13 24 102
(Foreign) ITX ITALY 11 9 16 20 17 73
(Foreign) CHX SWITZERLAND 11 8 19 15 10 63
(Foreign) SEX SWEDEN 8 11 11 13 11 54
(Foreign) ATX AUSTRIA 4 7 11 5 10 37
(Foreign) ILX ISRAEL 10 6 4 8 4 32
(Foreign) NLX NETHERLANDS 10 5 7 3 7 32
(Foreign) HKX CHINA,HONG KONG S.A.R. 7 5 7 3 6 28
(Foreign) BEX BELGIUM 3 4 2 9 5 23
(Foreign) SGX SINGAPORE 0 2 5 6 5 18
(Foreign) ESX SPAIN 5 4 5 2 0 16
(Foreign) FIX FINLAND 2 5 4 1 4 16
(Foreign) AUX AUSTRALIA 2 5 2 5 1 15
(Foreign) CNX CHINA P.REP. 1 2 2 3 7 15
(Foreign) DKX DENMARK 3 4 1 2 1 11
(Foreign) IEX IRELAND 2 0 2 2 3 9
(Foreign) RUX RUSSIAN FEDERATION 4 3 0 1 1 9
(Foreign) NZX NEW ZEALAND 2 2 2 0 2 8
(Foreign) BRX BRAZIL 1 0 1 1 2 5
(Foreign) NOX NORWAY 0 1 0 0 4 5
(Foreign) ZAX SOUTH AFRICA 0 1 2 0 1 4
(Foreign) THX THAILAND 0 0 2 1 0 3
(Foreign) INX INDIA 1 1 0 0 0 2
(Foreign) UAX UKRAINE 0 2 0 0 0 2
(Foreign) ARX ARGENTINA 0 0 0 0 1 1
(Foreign) GRX GREECE 0 1 0 0 0 1
(Foreign) HUX HUNGARY 0 1 0 0 0 1
(Foreign) ISX ICELAND 0 0 0 0 1 1
(Foreign) LUX LUXEMBOURG 1 0 0 0 0 1
(Foreign) MCX MONACO 1 0 0 0 0 1
(Foreign) MXX MEXICO 0 0 0 0 1 1
(Foreign) PFX FR. POLYNESIA 0 1 0 0 0 1
(Foreign) PTX PORTUGAL 0 0 0 1 0 1
(Foreign) SIX SLOVENIA 0 0 0 1 0 1
(Foreign) VEX VENEZUELA 0 0 0 1 0 1
(Foreign)   -- Subtotal -- 582 551 569 546 557 2805
(ALL) ALL All Regions, U.S. and Foreign 1157 1129 1116 1045 1085 5532


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
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
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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