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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 060, Power Plants

( 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 82 85 91 100 92 450
GENERAL ELECTRIC COMPANY 32 22 25 53 105 237
TOYOTA JIDOSHA K.K. 40 32 23 26 23 144
FORD GLOBAL TECHNOLOGIES, INC. 17 21 13 38 53 142
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 23 19 15 31 34 122
SIEMENS AKTIENGESELLSCHAFT 5 22 24 22 28 101
CATERPILLAR INC. 13 10 17 30 26 96
HITACHI, LTD 16 13 9 24 22 84
MITSUBISHI HEAVY INDUSTRIES CO., LTD. 1 9 17 32 22 81
UNITED TECHNOLOGIES CORPORATION 22 17 18 13 10 80
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 4 17 35 19 75
ASEA BROWN BOVERI AKTIENGESELLSCHAFT 16 8 14 19 2 59
ALLIED-SIGNAL INC. 7 6 14 20 8 55
NISSAN MOTOR COMPANY, LIMITED 9 3 9 20 12 53
ROBERT BOSCH GMBH 10 7 11 12 13 53
ROLLS-ROYCE PLC 8 10 14 11 9 52
KOMATSU LTD. 2 9 4 18 5 38
SIEMENS WESTINGHOUSE POWER CORPORATION 0 11 13 6 7 37
SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION "S.N.E.C.M.A." 9 6 9 9 4 37
TOSHIBA CORPORATION 6 6 9 8 6 35
GENERAL MOTORS CORPORATION 12 6 5 4 3 30
ORMAT INDUSTRIES, LTD. 7 4 3 9 4 27
SOCIETE HISPANO-SUIZA AEROSTRUCTURES 7 10 10 0 0 27
KANZAKI KOKYOKOKI MFG. CO., LTD. 7 2 2 7 7 25
LUCAS INDUSTRIES PUBLIC LTD. COMPANY 5 2 2 10 5 24
AISIN SEIKI KABUSHIKI KAISHA 1 6 4 2 8 21
DAIMLER-BENZ AKTIENGESELLSCHAFT 12 8 1 0 0 21
PRATT & WHITNEY CANADA CORP. 0 0 8 11 2 21
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 0 3 3 7 8 21
AB VOLVO 4 4 7 3 2 20
ENGELHARD CORPORATION 0 6 5 5 4 20
HITACHI CONSTRUCTION MACHINERY CO., LTD. 3 4 2 4 7 20
HONEYWELL INTERNATIONAL INC. 0 0 0 6 14 20
HYDRO-GEAR LIMITED PARTNERSHIP 2 1 3 9 5 20
BOEING COMPANY 6 3 2 3 5 19
CAPSTONE TURBINE CORPORATION 4 3 5 2 4 18
LOCKHEED MARTIN CORPORATION 2 2 4 2 8 18
MAZDA MOTOR CORPORATION 2 2 2 6 6 18
DENSO CORPORATION 2 0 4 6 4 16
SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE 8 4 4 0 0 16
TURBODYNE SYSTEMS, INC. 1 5 8 1 0 15
ABB RESEARCH LTD. 3 3 3 5 0 14
ALSTOM (SWITZERLAND) LTD 0 0 0 0 13 13
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA 3 0 3 4 3 13
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 2 2 5 1 3 13
WESTINGHOUSE ELECTRIC CORP. 10 3 0 0 0 13
BOSCH SYSTEMES DE FREINAGE 3 4 4 1 0 12
HAMILTON SUNDSTRAND CORPORATION 0 0 4 5 3 12
ALM DEVELOPMENT, INC. 0 0 1 4 6 11
ALSTOM POWER INC. 0 0 8 3 0 11
CORNING INCORPORATED 3 6 1 0 1 11
CUMMINS ENGINE CO., INC. 1 0 1 7 2 11
FANTOM TECHNOLOGIES INC. 0 0 0 10 1 11
MANNESMANN REXROTH AG 2 1 2 2 4 11
OTKRYTOE AKTSIONERNOE OBSCHESTVO "NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE "ENERGOMASH" IMONI AKADEMIKA KAKSOLMIKA V.P. GLUSHKO" 0 0 0 9 2 11
SOLAR TURBINES INCORPORATED 4 4 2 1 0 11
AIR PRODUCTS AND CHEMICALS, INC. 3 2 2 2 1 10
BMW ROLLS-ROYCE GMBH 0 8 1 1 0 10
DELPHI TECHNOLOGIES, INC. 0 0 0 5 5 10
DETROIT DIESEL CORPORATION 0 2 4 2 2 10
POWER SYSTEMS MFG., LLC 0 0 0 1 9 10
TRW INC. 2 0 2 5 1 10
UNITED STATES OF AMERICA, NAVY 1 1 1 2 5 10
CHRYSLER MOTORS CORPORATION 2 3 2 1 1 9
HISPANO SUIZA AEROSTRUCTURES 0 0 6 2 1 9
HUGHES ELECTRONICS CORP. 1 2 2 3 1 9
INSTITUT FRANCAIS DU PETROLE 0 2 4 2 1 9
JIDOSHA KIKI CO. LTD. 0 5 3 1 0 9
KOBE STEEL LTD. 1 5 1 1 1 9
NGK INSULATORS LTD. 2 3 4 0 0 9
NIPPONDENSO CO., LTD. 8 1 0 0 0 9
SAUER-DANFOSS INC. 0 0 0 2 7 9
UNITED STATES OF AMERICA, AIR FORCE 1 2 1 2 3 9
VOLKSWAGEN AKTIENGESELLSCHAFT 2 3 1 1 2 9
BOSCH BRAKING SYSTEMS CO., LTD. 0 0 0 2 6 8
DAIMLERCHRYSLER CORPORATION 0 0 1 5 2 8
EBARA CORPORATION 2 0 2 3 1 8
HYUNDAI MOTOR CO., LTD. 2 2 0 3 1 8
KELSEY-HAYES CO. 0 3 1 3 1 8
MAGNETI MARELLI S.P.A. 1 1 0 3 3 8
MANNESMANN SACHS AG 0 2 0 5 1 8
ROBERT BOSCH TECHNOLOGY CORP. 1 5 2 0 0 8
SHIN CATERPILLAR MITSUBISHI LTD. 2 1 1 1 3 8
ALLISON ADVANCED DEVELOPMENT COMPANY, INC. 0 0 1 0 6 7
BRUENINGHAUS HYDROMATIK GMBH 0 1 1 3 2 7
CLEAN ENERGY SYSTEMS, INC. 2 2 0 2 1 7
COMBUSTION ENGINEERING INC. 2 2 3 0 0 7
EMITEC GESELLSCHAFT FUR EMISSIONSTECHNOLOGIE MBH 2 2 0 0 3 7
EUROPEAN GAS TURBINES LIMITED 3 0 2 2 0 7
HUSCO INTERNATIONAL, INC. 1 2 1 2 1 7
PARKER-HANNIFIN CORPORATION 1 0 2 3 1 7
RAMGEN POWER SYSTEMS, INC. 0 0 0 3 4 7
SANSHIN KOGYO KABUSHIKI KAISHA 4 1 1 0 1 7
SOUTHWEST RESEARCH INSTITUTE 2 0 1 2 2 7
TECUMSEH PRODUCTS COMPANY 0 2 0 1 4 7
ALLISON ENGINE COMPANY, INC 4 1 1 0 0 6
ALSTOM 0 0 0 1 5 6
BOSCH SISTEMAS DE FRENADO S.L. 0 1 2 2 1 6
CLEAN DIESEL TECHNOLOGIES, INC. 3 2 1 0 0 6
FORD MOTOR COMPANY 0 0 1 5 0 6
HY-PAT CORPORATION 0 0 5 0 1 6
ISUZU CERAMICS RESEARCH INSTITUTE CO., LTD. 1 2 2 1 0 6
MITSUBISHI DENKI KABUSHIKI KAISHA 1 2 0 2 1 6
MITSUBISHI JUKOGYO KABUSHIKI KAISHA 3 3 0 0 0 6
MOTOROLA, INC. 4 0 1 0 1 6
SNECMA MOTEURS 0 0 0 3 3 6
SUZUKI MOTOR CORPORATION 1 0 1 2 2 6
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 3 0 1 0 2 6
UNITED STATES OF AMERICA, ENVIRONMENTAL PROTECTION AGENCY 0 0 0 4 2 6
VOLVO AERO CORPORATION 1 0 0 3 2 6
ABB ALSTOM POWER (SCHWEIZ) AG 0 0 1 3 1 5
ALSTOM GAS TURBINES LIMITED 0 0 2 2 1 5
BAYERISCHE MOTOREN WERKE AG 1 1 1 2 0 5
DAIMLER-BENZ AEROSPACE AIRBUS GMBH 4 1 0 0 0 5
EATON CORPORATION 1 1 1 2 0 5
ELECTRIC POWER RESEARCH INSTITUTE, INC. 4 1 0 0 0 5
HALDOR TOPSOE A/S 2 2 0 1 0 5
HOERBIGER HYDRAULIK GMBH 0 0 0 2 3 5
ISUZU MOTORS LIMITED 0 0 0 2 3 5
ITT MANUFACTURING ENTERPRISES, INC. 0 2 2 1 0 5
LITEX, INC. 0 0 2 2 1 5
MCDONNELL DOUGLAS CORP. 0 2 0 0 3 5
NORTHROP GRUMMAN CORPORATION 2 1 1 1 0 5
ROLLS-ROYCE CORPORATION 0 0 0 1 4 5
SCANIA CV AKTIEBOLAG 2 1 0 1 1 5
UNION OIL COMPANY OF CALIFORNIA 0 0 1 3 1 5
VALEO ELECTRICAL SYSTEMS, INC. 0 2 2 1 0 5
YAMAHA HATSUDOKI KABUSHIKI KAISHA, YAMAHA MOTOR CO., LTD. 2 3 0 0 0 5


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