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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 1998 - 2002 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 1998 1999 2000 2001 2002 Total
~Individually Owned Patent 49 51 39 53 42 234
DENSO CORPORATION 7 15 26 42 28 118
BEHR GMBH & CO. 10 9 6 10 10 45
VALEO THERMIQUE MOTEUR 10 6 4 9 8 37
ZEXEL CORPORATION 3 12 4 6 3 28
MODINE MANUFACTURING INC. 6 6 2 5 8 27
ABB AIR PREHEATER, INC. 11 6 5 3 0 25
SAMSUNG ELECTRONICS CO., LTD. 5 12 2 0 3 22
CALSONIC KANSEI CORPORATION 0 0 1 9 11 21
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 6 3 6 2 20
FOXCONN PRECISION COMPONENTS, CO., LTD. 0 0 2 9 8 19
SANDEN CORPORATION 6 9 3 1 0 19
VALEO CLIMATISATION 3 5 3 2 6 19
SHOWA ALUMINUM KABUSHIKI KAISHA 4 8 3 2 1 18
VISTEON GLOBAL TECHNOLOGIES, INC. 0 0 1 10 7 18
ALFA-LAVAL AB 3 5 5 2 2 17
CARRIER CORPORATION 2 4 3 5 3 17
HEWLETT-PACKARD COMPANY 2 1 3 3 8 17
INTEL CORPORATION 1 1 2 9 4 17
MITSUBISHI DENKI KABUSHIKI KAISHA 7 1 4 5 0 17
NIPPONDENSO CO., LTD. 11 4 2 0 0 17
MITSUBISHI HEAVY INDUSTRIES CO., LTD. 0 2 4 3 7 16
CALSONIC CORPORATION 2 8 4 1 0 15
DELPHI TECHNOLOGIES, INC. 0 0 2 5 7 14
FORD MOTOR COMPANY 5 8 1 0 0 14
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 1 2 4 6 1 14
LONG MANUFACTURING LTD. 1 2 0 7 3 13
GENERAL MOTORS CORPORATION 4 4 1 1 1 11
THERMAL CORPORATION 2 1 1 1 6 11
FORD GLOBAL TECHNOLOGIES, INC. 5 2 1 1 1 10
FURUKAWA ELECTRIC CO., LTD. 0 2 2 3 3 10
LUCENT TECHNOLOGIES INC. 1 2 4 1 2 10
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 0 1 3 3 3 10
CATERPILLAR INC. 1 3 1 3 1 9
DAEWOO ELECTRONICS COMPANY, LTD. 6 2 1 0 0 9
HITACHI, LTD 1 2 1 2 3 9
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 2 2 3 1 1 9
SANYO ELECTRIC CO., LTD. 1 3 3 1 1 9
TOSHIBA CORPORATION 0 2 2 5 0 9
FUJITSU LIMITED 0 1 3 2 2 8
HON HAI PRECISION IND. CO., LTD. 0 2 2 3 1 8
MOTOROLA, INC. 0 3 1 3 1 8
YORK INTERNATIONAL CORP. 1 0 1 2 4 8
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 0 2 3 2 7
LG ELECTRONICS INC. 2 1 0 2 2 7
SHOWA DENKO KABUSHIKI KAISHA 0 0 0 2 5 7
DAIMLER-BENZ AKTIENGESELLSCHAFT 2 2 2 0 0 6
EASTMAN KODAK COMPANY 2 2 2 0 0 6
SMC CORPORATION 0 2 0 0 4 6
UNISYS CORPORATION 0 1 1 2 2 6
VALEO KLIMATECHNIK GMBH & CO, KG 0 0 3 3 0 6
ALLIED-SIGNAL INC. 2 0 3 0 0 5
AMERICAN STANDARD, INC. 2 2 1 0 0 5
CHAUN-CHOUNG TECHNOLOGY CORP. 0 0 0 0 5 5
HONEYWELL INTERNATIONAL INC. 0 0 0 4 1 5
KOBE STEEL LTD. 0 2 1 2 0 5
LOCKHEED MARTIN CORPORATION 2 0 1 1 1 5
NORSK HYDRO A/S 0 0 3 1 1 5
SILICON GRAPHICS, INC. 3 0 0 2 0 5
STANDEX INTERNATIONAL CORPORATION 2 2 0 1 0 5
SUN MICROSYSTEMS, INC. 0 1 1 1 2 5
SUNDSTRAND CORPORATION 2 2 1 0 0 5
UNITED STATES OF AMERICA, AIR FORCE 0 1 0 2 2 5


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