| MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
68 |
65 |
43 |
52 |
35 |
263 |
| HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) |
29 |
45 |
42 |
53 |
49 |
218 |
| SANYO ELECTRIC CO., LTD. |
49 |
32 |
23 |
19 |
27 |
150 |
| SONY CORPORATION |
23 |
30 |
15 |
40 |
40 |
148 |
| SAMSUNG SDI CO., LTD. |
24 |
22 |
21 |
30 |
44 |
141 |
| GENERAL MOTORS CORPORATION |
24 |
30 |
32 |
19 |
34 |
139 |
| ~INDIVIDUALLY OWNED PATENT |
40 |
16 |
24 |
21 |
15 |
116 |
| UTC FUEL CELLS, LLC |
20 |
25 |
20 |
33 |
4 |
102 |
| NISSAN MOTOR COMPANY, LIMITED |
15 |
14 |
17 |
20 |
26 |
92 |
| BALLARD POWER SYSTEMS INC. |
20 |
17 |
19 |
12 |
6 |
74 |
| DELPHI TECHNOLOGIES, INC. |
11 |
20 |
10 |
16 |
9 |
66 |
| GILLETTE COMPANY |
10 |
14 |
10 |
16 |
15 |
65 |
| PLUG POWER INC. |
18 |
15 |
8 |
15 |
8 |
64 |
| TOSHIBA CORPORATION |
11 |
15 |
10 |
12 |
13 |
61 |
| HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
5 |
8 |
12 |
22 |
10 |
57 |
| TOYOTA JIDOSHA K.K. |
14 |
14 |
11 |
6 |
10 |
55 |
| WILSON GREATBATCH LTD. |
27 |
19 |
1 |
0 |
1 |
48 |
| EVEREADY BATTERY COMPANY, INC. |
14 |
8 |
7 |
2 |
4 |
35 |
| BALLARD POWER SYSTEMS AG |
17 |
10 |
6 |
0 |
0 |
33 |
| UNIVERSITY OF CALIFORNIA, THE REGENTS OF |
3 |
11 |
6 |
7 |
5 |
32 |
| MOTOROLA, INC. |
5 |
11 |
6 |
5 |
3 |
30 |
| MTI MICROFUEL CELLS, INC. |
4 |
9 |
5 |
3 |
7 |
28 |
| NEC CORPORATION |
1 |
5 |
5 |
10 |
7 |
28 |
| VALENCE TECHNOLOGY, INC. |
5 |
7 |
8 |
4 |
4 |
28 |
| NGK INSULATORS LTD. |
4 |
5 |
11 |
4 |
1 |
25 |
| OVONIC BATTERY COMPANY, INC. |
9 |
4 |
2 |
2 |
8 |
25 |
| HITACHI, LTD |
3 |
2 |
4 |
8 |
7 |
24 |
| JAPAN STORAGE BATTERY COMPANY LIMITED |
10 |
7 |
5 |
2 |
0 |
24 |
| PROTON ENERGY SYSTEMS, INC. |
2 |
7 |
5 |
5 |
5 |
24 |
| WILSON GREATBATCH TECHNOLOGIES, INC. |
1 |
5 |
9 |
8 |
1 |
24 |
| MITSUBISHI CHEMICAL CORPORATION |
6 |
2 |
6 |
2 |
6 |
22 |
| QUALLION, LLC |
3 |
5 |
2 |
6 |
6 |
22 |
| 3M INNOVATIVE PROPERTIES COMPANY |
7 |
5 |
1 |
3 |
5 |
21 |
| HYDROGENICS CORPORATION |
2 |
8 |
5 |
5 |
0 |
20 |
| MITSUBISHI DENKI KABUSHIKI KAISHA |
8 |
7 |
1 |
2 |
1 |
19 |
| HITACHI MAXELL, LTD. |
4 |
3 |
1 |
3 |
7 |
18 |
| SIEMENS AKTIENGESELLSCHAFT |
9 |
1 |
4 |
1 |
3 |
18 |
| GENERAL ELECTRIC COMPANY |
0 |
3 |
5 |
6 |
3 |
17 |
| NEC TOKIN CORPORATION |
4 |
5 |
3 |
1 |
4 |
17 |
| NISSHINBO INDUSTRIES, INC. |
2 |
5 |
8 |
2 |
0 |
17 |
| REVEO, INC. |
11 |
2 |
1 |
1 |
1 |
16 |
| CANON KABUSHIKI KAISHA |
6 |
2 |
4 |
1 |
2 |
15 |
| FUELCELL ENERGY, INC. |
3 |
1 |
6 |
2 |
3 |
15 |
| IDATECH LLC |
1 |
3 |
6 |
2 |
3 |
15 |
| DENSO CORPORATION |
2 |
2 |
2 |
3 |
5 |
14 |
| HYBRID POWER GENERATION SYSTEMS, LLC |
8 |
4 |
2 |
0 |
0 |
14 |
| CALIFORNIA INSTITUTE OF TECHNOLOGY |
1 |
5 |
0 |
3 |
4 |
13 |
| DAIMLER-CHRYSLER AKTIENGESELLSCHAFT |
1 |
3 |
5 |
0 |
4 |
13 |
| ENSCI INCORPORATED |
9 |
4 |
0 |
0 |
0 |
13 |
| UNIVERSITY OF CHICAGO |
1 |
3 |
5 |
3 |
1 |
13 |
| AISIN SEIKI KABUSHIKI KAISHA |
5 |
1 |
5 |
0 |
1 |
12 |
| ALCATEL |
6 |
5 |
0 |
1 |
0 |
12 |
| ASAHI GLASS COMPANY, LTD. |
2 |
3 |
3 |
1 |
3 |
12 |
| BLACK & DECKER INC. |
5 |
0 |
1 |
2 |
4 |
12 |
| ENERGY CONVERSION DEVICES, INC. |
6 |
4 |
2 |
0 |
0 |
12 |
| MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
4 |
4 |
4 |
0 |
0 |
12 |
| UBE INDUSTRIES LTD. |
3 |
1 |
3 |
1 |
4 |
12 |
| ANGSTROM POWER INC. |
0 |
0 |
2 |
5 |
4 |
11 |
| ASIA PACIFIC FUEL CELL TECHNOLOGIES, LTD. |
1 |
4 |
1 |
3 |
2 |
11 |
| FUJI PHOTO FILM CO., LTD |
1 |
2 |
3 |
5 |
0 |
11 |
| LG CHEMICAL LTD. |
1 |
2 |
2 |
2 |
4 |
11 |
| RELION, INC. |
0 |
5 |
2 |
4 |
0 |
11 |
| UNITED STATES OF AMERICA, NAVY |
0 |
3 |
1 |
4 |
3 |
11 |
| CORNING INCORPORATED |
4 |
0 |
1 |
0 |
5 |
10 |
| E. I. DU PONT DE NEMOURS AND COMPANY |
0 |
3 |
1 |
4 |
2 |
10 |
| FORSCHUNGSZENTRUM JULICH GMBH |
2 |
1 |
2 |
2 |
3 |
10 |
| ZINC MATRIX POWER, INC. |
4 |
3 |
2 |
1 |
0 |
10 |
| GS YUASA CORPORATION |
0 |
0 |
0 |
6 |
3 |
9 |
| JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
2 |
1 |
3 |
3 |
0 |
9 |
| KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
1 |
4 |
0 |
3 |
1 |
9 |
| MITSUBISHI MATERIALS CORPORATION |
3 |
1 |
1 |
1 |
3 |
9 |
| MOLTECH CORPORATION |
3 |
3 |
3 |
0 |
0 |
9 |
| NEAH POWER SYSTEMS INC |
1 |
3 |
1 |
2 |
2 |
9 |
| TEXACO OVONIC FUEL CELL, LLC |
0 |
3 |
2 |
4 |
0 |
9 |
| UNITED STATES OF AMERICA, ARMY |
2 |
1 |
2 |
3 |
1 |
9 |
| BASF AKTIENGESELLSCHAFT |
1 |
4 |
1 |
1 |
1 |
8 |
| DARAMIC, INC. |
1 |
3 |
2 |
1 |
1 |
8 |
| FORD MOTOR COMPANY |
1 |
2 |
2 |
1 |
2 |
8 |
| HYUNDAI MOTOR COMPANY |
0 |
0 |
2 |
3 |
3 |
8 |
| KABUSHIKIKAISHA EQUOS RESEARCH CO., LTD. |
2 |
1 |
2 |
2 |
1 |
8 |
| MEDTRONIC INC. |
1 |
0 |
5 |
0 |
2 |
8 |
| POLYPLUS BATTERY COMPANY, INC. |
2 |
1 |
2 |
0 |
3 |
8 |
| POWERGENIX SYSTEMS, INC. |
0 |
6 |
1 |
1 |
0 |
8 |
| SHARP KABUSHIKI KAISHA (SHARP CORPORATION) |
1 |
1 |
0 |
0 |
6 |
8 |
| SIEMENS WESTINGHOUSE POWER CORPORATION |
4 |
2 |
1 |
1 |
0 |
8 |
| COMMISSARIAT A L'ENERGIE ATOMIQUE |
1 |
0 |
0 |
2 |
4 |
7 |
| GORE ENTERPRISE HOLDINGS, INC. |
2 |
0 |
1 |
2 |
2 |
7 |
| GRAFTECH INC. |
7 |
0 |
0 |
0 |
0 |
7 |
| ION AMERICA CORPORATION |
0 |
1 |
2 |
4 |
0 |
7 |
| RAY-O-VAC CORPORATION |
2 |
1 |
2 |
1 |
1 |
7 |
| SHINKO ELECTRIC INDUSTRIES CO., LTD. |
1 |
1 |
0 |
2 |
3 |
7 |
| SHOWA DENKO KABUSHIKI KAISHA |
2 |
3 |
1 |
0 |
1 |
7 |
| SUMITOMO ELECTRIC INDUSTRIES CO., LTD. |
1 |
3 |
0 |
1 |
2 |
7 |
| TEXAS A AND M UNIVERSITY |
1 |
2 |
1 |
3 |
0 |
7 |
| TOSHIBA BATTERY CO., LTD. |
6 |
0 |
0 |
0 |
1 |
7 |
| TOYO KOHAN CO., LTD. |
2 |
3 |
1 |
1 |
0 |
7 |
| UNIVERSITY OF ILLINOIS |
0 |
2 |
1 |
1 |
3 |
7 |
| UTC POWER CORPORATION |
0 |
0 |
0 |
0 |
7 |
7 |
| ALBERTA RESEARCH COUNCIL INC. |
0 |
1 |
3 |
0 |
2 |
6 |
| CELGARD INC. |
0 |
3 |
2 |
1 |
0 |
6 |
| GAS TECHNOLOGY INSTITUTE |
0 |
2 |
2 |
2 |
0 |
6 |
| GENCELL CORPORATION |
2 |
1 |
2 |
0 |
1 |
6 |
| H-POWER CORP. |
0 |
3 |
1 |
2 |
0 |
6 |
| MANHATTAN SCIENTIFICS, INC. |
2 |
2 |
1 |
0 |
1 |
6 |
| METALLIC POWER, INC. |
0 |
4 |
2 |
0 |
0 |
6 |
| MITSUBISHI HEAVY INDUSTRIES, LTD. |
4 |
0 |
0 |
2 |
0 |
6 |
| NEC TOKIN TOCHIGI, LTD. |
1 |
1 |
2 |
2 |
0 |
6 |
| NGK SPARK PLUG CO., LTD. |
2 |
2 |
2 |
0 |
0 |
6 |
| NITTO DENKO CORPORATION |
1 |
2 |
2 |
1 |
0 |
6 |
| NUVERA FUEL CELLS EUROPE S.R.L. |
0 |
2 |
1 |
1 |
2 |
6 |
| ROBERT BOSCH GMBH |
2 |
1 |
1 |
0 |
2 |
6 |
| SHIN ETSU CHEMICAL CO., LTD. |
0 |
3 |
1 |
1 |
1 |
6 |
| SULZER HEXIS AG |
1 |
2 |
2 |
1 |
0 |
6 |
| TDK CORPORATION |
3 |
1 |
0 |
0 |
2 |
6 |
| UNIVERSITY OF PENNSYLVANIA |
1 |
1 |
3 |
1 |
0 |
6 |
| AIR PRODUCTS AND CHEMICALS, INC. |
1 |
3 |
0 |
0 |
1 |
5 |
| C&D/CHARTER HOLDINGS, INC. |
3 |
2 |
0 |
0 |
0 |
5 |
| CABOT CORPORATION |
1 |
0 |
1 |
1 |
2 |
5 |
| CYMBET CORPORATION |
0 |
1 |
0 |
2 |
2 |
5 |
| DEUTSCHE AUTOMOBILGESELLSCHAFT MBH |
2 |
1 |
1 |
0 |
1 |
5 |
| FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
1 |
1 |
1 |
2 |
0 |
5 |
| FUJITSU LIMITED |
2 |
1 |
0 |
2 |
0 |
5 |
| INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN |
0 |
2 |
1 |
2 |
0 |
5 |
| KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO |
2 |
1 |
0 |
0 |
2 |
5 |
| KONINKLIJKE PHILIPS ELECTRONICS N.V. |
2 |
2 |
0 |
1 |
0 |
5 |
| LG CHEMICALS CO. LTD. |
0 |
3 |
2 |
0 |
0 |
5 |
| LITHIUM POWER TECHNOLOGIES, INC. |
3 |
1 |
0 |
1 |
0 |
5 |
| LYNNTECH, INC. |
0 |
1 |
2 |
2 |
0 |
5 |
| MAKITA CORPORATION |
2 |
1 |
0 |
0 |
2 |
5 |
| NIPPON PILLAR PACKING CO. LTD. |
1 |
1 |
1 |
2 |
0 |
5 |
| NOK CORPORATION |
0 |
2 |
0 |
1 |
2 |
5 |
| NUCELLSYS GMBH |
0 |
0 |
0 |
2 |
3 |
5 |
| OVONIC FUEL CELL COMPANY LLC |
0 |
0 |
0 |
3 |
2 |
5 |
| QUESTAIR TECHNOLOGIES INC. |
0 |
0 |
2 |
2 |
1 |
5 |
| ROVCAL, INC. |
0 |
0 |
3 |
1 |
1 |
5 |
| SAMSUNG DISPLAY DEVICES CO., LTD. |
2 |
2 |
1 |
0 |
0 |
5 |
| SANDIA CORPORATION |
1 |
1 |
3 |
0 |
0 |
5 |
| SHIN KOBE ELECTRIC MACHINERY CO., LTD. |
2 |
3 |
0 |
0 |
0 |
5 |
| VOLKSWAGEN AKTIENGESELLSCHAFT |
1 |
1 |
0 |
2 |
1 |
5 |
| YAZAKI CORP. |
1 |
2 |
1 |
0 |
1 |
5 |