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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 Organization

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 Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 165, Heat Exchange

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant
First-Named Assignee 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 39 53 42 36 70 240
DENSO CORPORATION 26 42 28 19 30 145
BEHR GMBH & CO. 6 10 10 11 6 43
MODINE MANUFACTURING INC. 2 5 8 13 12 40
VISTEON GLOBAL TECHNOLOGIES, INC. 1 10 7 8 7 33
DELPHI TECHNOLOGIES, INC. 2 5 7 10 8 32
CALSONIC KANSEI CORPORATION 1 9 11 4 6 31
VALEO THERMIQUE MOTEUR 4 9 8 7 2 30
INTEL CORPORATION 2 9 4 7 4 26
MITSUBISHI HEAVY INDUSTRIES, LTD. 4 3 7 5 4 23
THERMAL CORPORATION 1 1 6 7 8 23
FOXCONN PRECISION COMPONENTS, CO., LTD. 2 9 8 2 0 21
VALEO CLIMATISATION 3 2 6 6 4 21
CARRIER CORPORATION 3 5 3 5 4 20
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 4 6 1 5 2 18
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 6 2 2 5 18
HEWLETT-PACKARD COMPANY 3 3 8 2 0 16
FURUKAWA ELECTRIC CO., LTD. 2 3 3 3 4 15
HON HAI PRECISION IND. CO., LTD. 2 3 1 3 5 14
ZEXEL CORPORATION 4 6 3 0 1 14
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 3 3 3 3 1 13
ALFA-LAVAL AB 5 2 2 3 0 12
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 3 1 1 3 4 12
LONG MANUFACTURING LTD. 0 7 3 2 0 12
MITSUBISHI DENKI KABUSHIKI KAISHA 4 5 0 3 0 12
AGILENT TECHNOLOGIES, INC. 1 1 2 2 5 11
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 2 3 2 1 3 11
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 5 6 11
SAMSUNG ELECTRONICS CO., LTD. 2 0 3 4 2 11
YORK INTERNATIONAL CORP. 1 2 4 2 2 11
ALSTOM (SWITZERLAND) LTD 0 0 3 6 1 10
FUJITSU LIMITED 3 2 2 2 1 10
DELTA ELECTRONICS INC. 1 1 2 2 3 9
LG ELECTRONICS INC. 0 2 2 2 3 9
SHOWA DENKO KABUSHIKI KAISHA 0 2 5 1 1 9
ABB AIR PREHEATER, INC. 5 3 0 0 0 8
HALLA CLIMATE CONTROL CORPORATION 2 0 0 1 5 8
HITACHI, LTD 1 2 3 1 1 8
LUCENT TECHNOLOGIES INC. 4 1 2 0 1 8
SUN MICROSYSTEMS, INC. 1 1 2 3 1 8
ALSTOM POWER N.V. 0 2 2 3 0 7
HONEYWELL INTERNATIONAL INC. 0 4 1 1 1 7
SANDEN CORPORATION 3 1 0 2 1 7
SANYO ELECTRIC CO., LTD. 3 1 1 2 0 7
TOSHIBA CORPORATION 2 5 0 0 0 7
VALEO KLIMATECHNIK GMBH & CO, KG 3 3 0 1 0 7
AMERICAN STANDARD INTERNATIONAL INC. 0 0 4 0 2 6
GENERAL MOTORS CORPORATION 1 1 1 3 0 6
NORSK HYDRO A/S 3 1 1 1 0 6
SHOWA ALUMINUM KABUSHIKI KAISHA 3 2 1 0 0 6
TEMPTRONIC CORPORATION 2 1 1 1 1 6
TOYO RADIATOR COMPANY, LIMITED 0 2 0 2 2 6
BALTIMORE AIRCOIL COMPANY, INC. 1 2 0 1 1 5
CALSONIC CORPORATION 4 1 0 0 0 5
CATERPILLAR INC. 1 3 1 0 0 5
CHAUN-CHOUNG TECHNOLOGY CORP. 0 0 5 0 0 5
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 1 2 1 1 5
LIEBERT CORPORATION 0 0 0 3 2 5
MARCONI COMMUNICATIONS, INC. 1 0 1 2 1 5
MOTOROLA, INC. 1 3 1 0 0 5
NISSAN MOTOR COMPANY, LIMITED 1 1 1 0 2 5
SUNONWEALTH ELECTRIC MACHINE INDUSTRY CO., LTD. 0 0 1 3 1 5
UNISYS CORPORATION 1 2 2 0 0 5
UNITED STATES OF AMERICA, AIR FORCE 0 2 2 0 1 5
UNITED STATES OF AMERICA, NAVY 1 0 1 0 3 5


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