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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 123, Internal-Combustion Engines

( 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 159 135 129 195 148 766
ROBERT BOSCH GMBH 66 46 80 89 121 402
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 63 61 48 103 100 375
TOYOTA JIDOSHA K.K. 84 76 45 71 58 334
FORD GLOBAL TECHNOLOGIES, INC. 43 51 52 82 81 309
CATERPILLAR INC. 32 34 73 52 67 258
NISSAN MOTOR COMPANY, LIMITED 15 40 48 48 44 195
SANSHIN KOGYO KABUSHIKI KAISHA 40 36 37 34 40 187
YAMAHA HATSUDOKI KABUSHIKI KAISHA, YAMAHA MOTOR CO., LTD. 72 29 35 27 19 182
MITSUBISHI DENKI KABUSHIKI KAISHA 14 23 29 55 39 160
DENSO CORPORATION 20 23 36 28 39 146
HITACHI, LTD 21 21 30 30 40 142
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 0 13 41 45 32 131
DELPHI TECHNOLOGIES, INC. 0 0 5 39 80 124
UNISIA JECS CORPORATION 16 17 22 27 31 113
CUMMINS ENGINE CO., INC. 22 22 25 17 7 93
INA WALZLAGER SCHAEFFLER OHG 6 19 20 25 23 93
GENERAL MOTORS CORPORATION 19 23 21 16 12 91
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA 28 26 12 5 8 79
SIEMENS AKTIENGESELLSCHAFT 6 14 20 19 19 78
SIEMENS CANADA LTD. 1 16 12 24 19 72
DAIMLER-BENZ AKTIENGESELLSCHAFT 38 25 6 1 1 71
SUZUKI MOTOR CORPORATION 6 22 14 17 10 69
ISUZU MOTORS LIMITED 8 7 12 20 11 58
SIEMENS AUTOMOTIVE CORPORATION 8 5 11 13 17 54
BRUNSWICK CORPORATION 10 13 11 9 8 51
FEV MOTORENTECHNIK GMBH & CO. KG 10 11 7 9 14 51
CHRYSLER MOTORS CORPORATION 15 20 13 2 0 50
DAIMLERCHRYSLER CORPORATION 0 4 12 24 10 50
AISIN SEIKI KABUSHIKI KAISHA 8 11 13 7 9 48
DETROIT DIESEL CORPORATION 3 3 11 12 19 48
FILTERWERK MANN + HUMMEL GMBH 1 5 12 8 22 48
VISTEON GLOBAL TECHNOLOGIES, INC. 0 0 2 17 23 42
KIORITZ CORPORATION 2 15 8 6 8 39
MAZDA MOTOR CORPORATION 5 4 12 9 8 38
BAYERISCHE MOTOREN WERKE AG 6 3 7 10 11 37
HYUNDAI MOTOR CO., LTD. 7 8 6 6 10 37
DIESEL ENGINE RETARDERS, INC. 6 3 9 10 8 36
PORSCHE AG 5 7 5 6 13 36
EATON CORPORATION 2 12 6 12 3 35
FUJI JUKOGYO KABUSHIKI KAISHA 10 8 4 4 7 33
WALBRO CORPORATION 6 6 5 7 9 33
BORGWARNER INC. 0 0 3 11 16 30
LUCAS INDUSTRIES PUBLIC LTD. COMPANY 9 5 7 7 1 29
NIPPONDENSO CO., LTD. 22 2 3 1 0 28
ANDREAS STIHL AG & CO. 1 1 5 10 10 27
GENERAL ELECTRIC COMPANY 1 1 3 16 5 26
ORBITAL ENGINE COMPANY (AUSTRALIA) PTY. LTD. 6 6 5 3 6 26
BOMBARDIER MOTOR CORPORATION OF AMERICA 0 0 0 7 17 24
BRIGGS + STRATTON CORPORATION 4 1 6 8 5 24
C.R.F. SOCIETA CONSORTILE PER AZIONI 6 2 7 5 4 24
SUZUKI KABUSHIKI KAISHA 5 2 2 4 11 24
OUTBOARD MARINE CORPORATION 7 6 4 5 1 23
AVL LIST GMBH 1 5 5 9 2 22
DANA CORPORATION 1 1 4 11 5 22
FORD MOTOR COMPANY 9 6 5 1 1 22
AKTIEBOLAGET ELECTROLUX 7 4 4 5 1 21
VOLKSWAGEN AKTIENGESELLSCHAFT 2 5 5 2 7 21
AISAN INDUSTRY CO., LTD. 4 2 4 1 9 20
INSTITUT FRANCAIS DU PETROLE 6 2 7 2 3 20
MAGNETI MARELLI S.P.A. 3 1 2 4 10 20
INA WALZLAGER SCHAEFFLER KG 15 4 0 0 0 19
NAVISTAR INTERNATIONAL TRANSPORTATION CORP. 2 6 8 2 1 19
TECUMSEH PRODUCTS COMPANY 1 4 2 6 5 18
MANNESMANN VDO AG 0 0 1 8 8 17
MITSUBISHI HEAVY INDUSTRIES CO., LTD. 0 6 3 5 2 16
SOUTHWEST RESEARCH INSTITUTE 5 3 2 3 3 16
FEDERAL-MOGUL WORLD WIDE, INC. 0 2 2 2 9 15
FUJI OOZX INC. 5 6 0 2 2 15
KOMATSU LTD. 2 3 3 4 3 15
NIPPON SOKEN, INC. 4 3 4 3 1 15
AB VOLVO 2 3 2 4 3 14
HARLEY-DAVIDSON MOTOR CO., INC. 0 2 4 2 6 14
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, L.L.C. 0 0 0 0 13 13
MOTORENFABRIK HATZ GMBH + CO. KG 1 2 6 3 1 13
INTERNATIONAL TRUCK AND ENGINE CORP. 0 0 0 6 6 12
ISUZU CERAMICS RESEARCH INSTITUTE CO., LTD. 5 3 3 0 1 12
KAWASAKI JUKOGYO KABUSHIKI KAISHA 0 3 1 0 8 12
KEIHIN CORPORATION 0 0 3 3 6 12
KOHLER CO. 3 1 2 3 3 12
KOKUSAN DENKI CO., LTD 0 2 2 3 5 12
DEERE + COMPANY 0 1 0 6 4 11
VOLVO LASTVAGNAR AB 0 0 0 9 2 11
ZEXEL CORPORATION 3 5 2 1 0 11
DEUTZ AG 0 2 4 3 1 10
DOLMAR GMBH 1 0 4 3 2 10
FUTABA DENSHI KOGYO KABUSHIKI KAISHA 3 4 1 2 0 10
M.A.N.-B & W DIESEL A/S 4 1 1 3 1 10
META MOTOREN-UND ENERGIE-TECHNIK GMBH 2 2 3 2 1 10
NGK SPARK PLUG CO., LTD. 3 2 1 3 1 10
SIEMENS AUTOMOTIVE S.A. 4 1 1 3 1 10
SIEMENS VDO AUTOMOTIVE, INC. 0 0 0 0 10 10
TCG UNITECH AKTIENGESELLSCHAFT 0 1 3 6 0 10
CUMMINS INC. 0 0 0 0 9 9
ISAD ELECTRONIC SYSTEMS GMBH & CO. KG 0 0 6 1 2 9
KOMATSU ZENOAH CO. 0 0 3 4 2 9
KUBOTA CORPORATION 2 1 2 2 2 9
PHILLIPS & TEMRO INDUSTRIES INC. 1 4 4 0 0 9
VOLVO CAR CORPORATION AB 0 0 0 0 9 9
BEHR GMBH & CO. 3 2 0 3 0 8
DESIGN AND MANUFACTURING SOLUTIONS, INC. 0 0 1 4 3 8
HYDRAULIK-RING GMBH 0 0 3 4 1 8
MAGNETI MARELLI FRANCE 0 2 1 1 4 8
MAHLE GMBH 2 2 2 2 0 8
MECHADYNE PLC 0 0 0 7 1 8
MOTOREN-UND TURBINEN-UNION FRIEDRICHSHAFEN GMBH 3 0 0 4 1 8
PERKINS ENGINES COMPANY LIMITED 0 1 1 6 0 8
PIERBURG AG 4 2 0 0 2 8
SCANIA CV AKTIEBOLAG 2 1 0 4 1 8
SIEMENS AUTOMOTIVE INC. 0 0 0 1 7 8
SIEMENS ELECTRIC LIMITED 7 1 0 0 0 8
STANADYNE AUTOMOTIVE CORP. 2 2 2 0 2 8
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 3 2 2 1 0 8
COMPETITION CAMS, INC. 0 1 1 4 1 7
FICHT GMBH & CO. KG 0 2 3 0 2 7
GUL & CO DEVELOPMENT AB 0 0 7 0 0 7
MACK TRUCKS, INC. 0 0 0 3 4 7
ROBERT BOSCH CORPORATION 0 1 0 1 5 7
USUI KOKUSAI SANGYO KABUSHIKI KAISHA 0 0 0 3 4 7
VALEO EQUIPEMENTS ELECTRIQUES MOTEUR 1 4 1 1 0 7
WARTSILA NSD OY AB 0 0 1 2 4 7
WESTPORT RESEARCH INC. 1 2 0 3 1 7
ALLIED-SIGNAL INC. 0 2 3 1 0 6
AUDI AG 2 1 0 2 1 6
CUMMINS ENGINE COMPANY LIMITED 0 0 0 5 1 6
DIESEL TECHNOLOGY COMPANY 2 0 4 0 0 6
HITACHI CONSTRUCTION MACHINERY CO., LTD. 1 2 1 2 0 6
J. M. VOITH TURBO GMBH & CO. KG 4 1 0 1 0 6
MECEL AB 3 1 2 0 0 6
NIPPON PISTON RING CO., LTD. 1 2 1 2 0 6
NIPPON THERMOSTAT CO., LTD. 0 1 1 1 3 6
NORTHROP GRUMMAN CORPORATION 3 1 0 1 1 6
SAGEM S.A. 0 0 0 3 3 6
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 1 1 4 0 0 6
VDO ADOLF SCHINDLING AG 5 0 1 0 0 6
WOODWARD GOVERNOR COMPANY 2 2 1 1 0 6
HAYES LEMMERZ INTERNATIONAL, INC. 0 0 0 4 1 5
HILTI AKTIENGESELLSCHAFT 0 0 0 0 5 5
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 1 2 1 1 5
KIA MOTORS CORP. 5 0 0 0 0 5
MAN B&W DIESEL AKTIENGESELLSCHAFT 0 3 1 1 0 5
OY WARTSILA DIESEL INTERNATIONAL LTD. 3 2 0 0 0 5
R. E. PHELON COMPANY, INC. 3 2 0 0 0 5
SWISSAUTO ENGINEERING S.A. 0 0 1 2 2 5
U.S. PHILIPS CORPORATION 2 3 0 0 0 5
UNITED STATES OF AMERICA, ARMY 1 0 2 1 1 5
VOLVO PERSONVAGNAR AB 0 0 0 0 5 5


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