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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 2001 2002 2003 2004 2005 Total
~Individually Owned Patent 195 148 156 132 138 769
ROBERT BOSCH GMBH 89 121 128 142 120 600
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 103 100 101 107 87 498
TOYOTA JIDOSHA K.K. 71 58 62 69 60 320
DELPHI TECHNOLOGIES, INC. 39 80 63 60 33 275
CATERPILLAR INC. 52 67 59 54 35 267
NISSAN MOTOR COMPANY, LIMITED 48 44 64 53 54 263
MITSUBISHI DENKI KABUSHIKI KAISHA 55 39 48 54 42 238
DENSO CORPORATION 28 39 53 60 57 237
HITACHI, LTD 30 40 56 29 46 201
FORD GLOBAL TECHNOLOGIES, INC. 82 80 30 2 2 196
FORD GLOBAL TECHNOLOGIES, L.L.C. 0 0 44 69 67 180
GENERAL MOTORS CORPORATION 16 12 40 50 58 176
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 45 32 35 23 17 152
VISTEON GLOBAL TECHNOLOGIES, INC. 17 23 29 31 20 120
SANSHIN KOGYO KABUSHIKI KAISHA 34 40 18 2 0 94
UNISIA JECS CORPORATION 27 31 20 13 3 94
YAMAHA HATSUDOKI KABUSHIKI KAISHA, YAMAHA MOTOR CO., LTD. 27 19 14 9 15 84
HYUNDAI MOTOR CO., LTD. 6 10 16 24 27 83
ANDREAS STIHL AG & CO. 10 10 20 12 30 82
BORGWARNER INC. 11 16 12 20 21 80
SIEMENS AKTIENGESELLSCHAFT 19 19 9 17 14 78
INTERNATIONAL ENGINE INTELLECTUAL PROPERTY COMPANY, L.L.C. 0 13 13 22 20 68
DAIMLERCHRYSLER CORPORATION 24 10 5 17 11 67
ISUZU MOTORS LIMITED 20 11 10 8 10 59
FILTERWERK MANN + HUMMEL GMBH 8 22 13 11 2 56
INA WALZLAGER SCHAEFFLER OHG 25 23 5 1 2 56
YAMAHA MARINE KABUSHIKI KAISHA 0 0 14 25 17 56
SIEMENS CANADA LTD. 24 19 8 3 0 54
SIEMENS VDO AUTOMOTIVE, INC. 0 10 13 9 22 54
AVL LIST GMBH 9 2 19 13 9 52
SUZUKI MOTOR CORPORATION 17 10 11 4 9 51
DETROIT DIESEL CORPORATION 12 19 9 6 4 50
PORSCHE AG 6 13 9 11 8 47
INA-SCHAEFFLER KG 0 1 16 13 14 44
CUMMINS INC. 0 9 11 10 13 43
MAZDA MOTOR CORPORATION 9 8 8 6 12 43
KIORITZ CORPORATION 6 8 11 10 6 41
BRUNSWICK CORPORATION 9 8 6 8 8 39
C.R.F. SOCIETA CONSORTILE PER AZIONI 5 4 13 13 4 39
SIEMENS AUTOMOTIVE CORPORATION 13 17 6 3 0 39
EATON CORPORATION 12 3 8 6 8 37
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA 5 8 4 8 12 37
BAYERISCHE MOTOREN WERKE AG 10 11 5 2 8 36
BOMBARDIER MOTOR CORPORATION OF AMERICA 7 17 9 3 0 36
AISIN SEIKI KABUSHIKI KAISHA 7 9 4 7 8 35
AISAN INDUSTRY CO., LTD. 1 9 3 10 11 34
GENERAL ELECTRIC COMPANY 16 5 6 1 6 34
KAWASAKI JUKOGYO KABUSHIKI KAISHA 0 8 11 4 11 34
FEV MOTORENTECHNIK GMBH & CO. KG 9 14 5 3 1 32
FUJI JUKOGYO KABUSHIKI KAISHA 4 7 9 8 3 31
TECUMSEH PRODUCTS COMPANY 6 5 5 6 9 31
BRIGGS + STRATTON CORPORATION 8 5 6 5 6 30
CUMMINS ENGINE CO., INC. 18 7 4 1 0 30
DANA CORPORATION 11 5 6 6 2 30
SIEMENS VDO AUTOMOTIVE CORPORATION 0 1 9 8 12 30
DIESEL ENGINE RETARDERS, INC. 10 8 4 4 2 28
KEIHIN CORPORATION 3 6 7 3 6 25
VOLKSWAGEN AKTIENGESELLSCHAFT 2 7 6 2 8 25
FEDERAL-MOGUL WORLD WIDE, INC. 2 9 7 3 3 24
SUZUKI KABUSHIKI KAISHA 4 11 2 4 1 22
VOLVO LASTVAGNAR AB 9 2 3 5 3 22
HITACHI UNISIA AUTOMOTIVE, LTD. 0 0 1 12 8 21
ORBITAL ENGINE COMPANY (AUSTRALIA) PTY. LTD. 3 6 4 5 3 21
DEERE + COMPANY 6 4 5 1 4 20
KOKUSAN DENKI CO., LTD 3 5 7 4 1 20
MOTOREN-UND TURBINEN-UNION FRIEDRICHSHAFEN GMBH 4 1 2 10 3 20
KOHLER CO. 3 3 2 5 6 19
WALBRO CORPORATION 7 9 3 0 0 19
MANNESMANN VDO AG 8 8 1 0 0 17
SOUTHWEST RESEARCH INSTITUTE 3 3 5 4 2 17
AKTIEBOLAGET ELECTROLUX 5 1 6 2 2 16
HARLEY-DAVIDSON MOTOR CO., INC. 2 6 5 2 1 16
MAHLE GMBH 2 0 2 5 7 16
INSTITUT FRANCAIS DU PETROLE 2 3 4 6 0 15
MAGNETI MARELLI S.P.A. 4 10 1 0 0 15
VOLVO CAR CORPORATION AB 0 9 6 0 0 15
HYDRAULIK-RING GMBH 4 1 0 4 5 14
KOMATSU LTD. 4 3 3 2 2 14
NGK SPARK PLUG CO., LTD. 3 1 7 1 2 14
SIEMENS AUTOMOTIVE INC. 1 7 5 1 0 14
KUBOTA CORPORATION 2 2 2 1 6 13
MECHADYNE PLC 7 1 1 2 2 13
PERKINS ENGINES COMPANY LIMITED 6 0 0 2 5 13
STANADYNE CORPORATION 0 4 2 2 5 13
AB VOLVO 4 3 3 2 0 12
BOMBARDIER RECREATIONAL PRODUCTS INC. 0 0 0 5 7 12
DOLMAR GMBH 3 2 3 2 2 12
HONEYWELL INTERNATIONAL INC. 1 3 3 2 3 12
INTERNATIONAL TRUCK AND ENGINE CORP. 6 6 0 0 0 12
MIKUNI CORPORATION 1 0 5 2 4 12
AUDI AG 2 1 3 3 2 11
NIPPON SOKEN, INC. 3 1 1 5 1 11
PIERBURG AG 1 3 3 3 1 11
ROBERT BOSCH CORPORATION 1 5 2 2 1 11
SCANIA CV AKTIEBOLAG 4 1 2 2 2 11
STARTING INDUSTRIAL CO., LTD 0 0 0 7 4 11
USUI KOKUSAI SANGYO KABUSHIKI KAISHA 3 4 1 2 1 11
CUMMINS ENGINE COMPANY LIMITED 5 1 1 1 2 10
HILTI AKTIENGESELLSCHAFT 0 5 3 1 1 10
MACK TRUCKS, INC. 3 4 0 1 2 10
MAGNETI MARELLI POWERTRAIN S.P.A. 0 1 4 3 2 10
MAHLE VENTILRIEB GMBH 2 2 2 2 2 10
META MOTOREN-UND ENERGIE-TECHNIK GMBH 2 1 2 3 2 10
BOMBARDIER-ROTAX GMBH & CO. KG 2 2 3 2 0 9
BOSCH AUTOMOTIVE MOTOR SYSTEMS CORPORATION 0 0 1 3 5 9
HAYES LEMMERZ INTERNATIONAL, INC. 4 1 0 2 2 9
MITSUBISHI FUSO TRUCK AND BUS CORPORATION 0 0 0 4 5 9
MITSUBISHI HEAVY INDUSTRIES, LTD. 5 2 0 1 1 9
MTD SOUTHWEST, INC. 1 3 2 1 2 9
NSK LIMITED 2 1 2 1 3 9
USUI KOKUSAI SANGYO KAISHA, LTD. 0 2 0 1 6 9
WESTPORT RESEARCH INC. 3 1 4 1 0 9
ACCESSIBLE TECHNOLOGIES, INC. 0 3 4 1 0 8
KABUSHIKI KAISHA MORIC 0 0 2 4 2 8
LUCAS INDUSTRIES PUBLIC LTD. COMPANY 7 1 0 0 0 8
MAGNETI MARELLI FRANCE 1 4 0 3 0 8
NTN CORPORATION 0 1 1 3 3 8
PEUGEOT CITROEN AUTOMOBILES S.A. 0 0 1 1 6 8
WALBRO ENGINE MANAGEMENT, L.L.C. 0 0 2 0 6 8
ARCTIC CAT INC. 2 1 1 0 3 7
DESIGN AND MANUFACTURING SOLUTIONS, INC. 4 3 0 0 0 7
JENBACHER AKTIENGESELLSCHAFT 0 2 1 3 1 7
KOMATSU ZENOAH CO. 4 2 0 1 0 7
MTD PRODUCTS INC. 1 0 2 3 1 7
NIPPON THERMOSTAT CO., LTD. 1 3 1 1 1 7
TCG UNITECH AKTIENGESELLSCHAFT 6 0 1 0 0 7
UNITED STATES OF AMERICA, ENVIRONMENTAL PROTECTION AGENCY 2 1 1 2 1 7
VOLVO PERSONVAGNAR AB 0 5 1 0 1 7
WOODWARD GOVERNOR COMPANY 1 0 0 4 2 7
FUJI OOZX INC. 2 2 2 0 0 6
ILLINOIS TOOL WORKS INC. 0 0 1 3 2 6
KOYO SEIKO COMPANY, LTD. 1 1 2 0 2 6
MOTORENFABRIK HATZ GMBH + CO. KG 3 1 2 0 0 6
OUTBOARD MARINE CORPORATION 5 1 0 0 0 6
PARKER-HANNIFIN CORPORATION 1 1 2 1 1 6
S & S CYCLE, INC. 2 0 1 1 2 6
SAGEM S.A. 3 3 0 0 0 6
WARTSILA NSD OY AB 2 4 0 0 0 6
ZAMA JAPAN 0 1 2 1 2 6
AICHI KIKAI KOGYO KABUSHIKI KAISHA 4 0 1 0 0 5
BEHR GMBH & CO. 3 0 0 1 1 5
BEHR THERMOT-TRONIK GMBH & CO. 0 1 4 0 0 5
CHRYSALIS TECHNOLOGIES, INCORPORATED 0 0 0 2 3 5
CLEAN FUEL TECHNOLOGY, INC. 0 3 1 1 0 5
COMPETITION CAMS, INC. 4 1 0 0 0 5
CSXT INTELLECTUAL PROPERTIES CORPORATION 0 0 0 2 3 5
DEUTZ AG 3 1 0 0 1 5
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 0 0 1 1 3 5
FORD MOTOR COMPANY 1 1 2 1 0 5
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 4 1 5
INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY L.L.C. 0 0 1 3 1 5
LUBRIZOL CORPORATION 0 2 1 2 0 5
MAHLE FILTERSYSTEME GMBH 0 0 2 1 2 5
MAN NUTZFAHRZEUGE AKTIENGESELLSHAFT 0 3 1 1 0 5
MARUYAMA MFG. CO. INC. 1 1 2 1 0 5
MILLENNIUM INDUSTRIES CORP. 0 0 2 2 1 5
REGIE NATIONALE DES USINES RENAULT 2 1 0 1 1 5
SAAB AUTOMOBILE AKTIEBOLAG 0 0 2 3 0 5
SIEMENS AUTOMOTIVE S.A. 3 1 0 1 0 5
STURMAN INDUSTRIES, INC. 1 1 2 1 0 5
TOYODA GOSEI KABUSHIKI KAISHA 2 0 2 0 1 5
YANMAR CO., LTD. 0 0 2 0 3 5


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Skip menu navigation Home > Listing of Viewable PTMB Reports > Table of Contents for This Set of Reports