~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 |