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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 2005 - 2009 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 429, Chemistry: Electrical Current Producing Apparatus, Product, and Process

( 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 2005 2006 2007 2008 2009 Total
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 45 54 49 45 50 243
SAMSUNG SDI CO., LTD. 21 30 44 41 83 219
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 43 52 35 49 0 179
SONY CORPORATION 15 40 40 21 28 144
GENERAL MOTORS CORPORATION 32 19 34 35 11 131
SANYO ELECTRIC CO., LTD. 23 19 27 30 32 131
NISSAN MOTOR COMPANY, LIMITED 17 21 26 27 21 112
~INDIVIDUALLY OWNED PATENT 24 21 15 12 23 95
PANASONIC CORPORATION 0 0 0 8 78 86
TOYOTA JIDOSHA K.K. 11 7 10 17 31 76
TOSHIBA CORPORATION 10 12 13 11 25 71
GILLETTE COMPANY 10 16 15 9 18 68
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 12 22 10 10 9 63
UTC FUEL CELLS, LLC 20 33 4 2 0 59
DELPHI TECHNOLOGIES, INC. 10 16 9 7 10 52
BALLARD POWER SYSTEMS INC. 19 12 6 4 3 44
GM GLOBAL TECHNOLOGY OPERATIONS, INC. 0 0 0 5 37 42
LG CHEMICAL LTD. 2 2 4 4 28 40
PLUG POWER INC. 8 15 8 6 3 40
EVEREADY BATTERY COMPANY, INC. 7 2 4 9 16 38
NEC CORPORATION 5 10 7 6 8 36
HITACHI, LTD 4 8 7 4 8 31
QUALLION, LLC 2 6 6 6 11 31
HITACHI MAXELL, LTD. 1 3 7 9 8 28
GENERAL ELECTRIC COMPANY 5 6 3 4 8 26
UTC POWER CORPORATION 0 0 7 10 9 26
CANON KABUSHIKI KAISHA 4 1 2 5 12 24
3M INNOVATIVE PROPERTIES COMPANY 1 3 5 5 9 23
MTI MICROFUEL CELLS, INC. 5 3 7 4 3 22
PROTON ENERGY SYSTEMS, INC. 5 5 5 4 2 21
UNIVERSITY OF CALIFORNIA, THE REGENTS OF 6 7 5 2 1 21
VALENCE TECHNOLOGY, INC. 8 4 4 3 2 21
FUELCELL ENERGY, INC. 6 2 3 7 2 20
NGK INSULATORS LTD. 11 4 1 1 3 20
WILSON GREATBATCH TECHNOLOGIES, INC. 9 8 1 0 0 18
HYDROGENICS CORPORATION 5 5 0 6 1 17
CALIFORNIA INSTITUTE OF TECHNOLOGY 0 3 4 5 4 16
DENSO CORPORATION 2 3 5 3 3 16
IDATECH LLC 6 2 3 3 2 16
MEDTRONIC INC. 5 0 2 3 6 16
MITSUBISHI CHEMICAL CORPORATION 6 2 6 0 2 16
SIEMENS AKTIENGESELLSCHAFT 4 1 3 6 2 16
GS YUASA CORPORATION 0 6 3 1 5 15
MOTOROLA, INC. 6 5 3 1 0 15
ANGSTROM POWER INC. 2 5 4 2 1 14
COMMISSARIAT A L'ENERGIE ATOMIQUE 0 2 4 3 5 14
E. I. DU PONT DE NEMOURS AND COMPANY 1 4 2 3 4 14
OVONIC BATTERY COMPANY, INC. 2 2 8 0 2 14
UBE INDUSTRIES LTD. 3 1 4 0 6 14
UCHICAGO ARGONNE LLC 0 1 3 7 3 14
BLOOM ENERGY CORPORATION 0 2 2 3 5 12
CORNING INCORPORATED 1 0 5 3 3 12
HYUNDAI MOTOR COMPANY 2 3 3 0 4 12
UNITED STATES OF AMERICA, ARMY 2 3 1 2 4 12
UNITED STATES OF AMERICA, NAVY 1 4 3 1 3 12
BLACK & DECKER INC. 1 2 4 2 2 11
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 5 0 4 2 0 11
WILSON GREATBATCH LTD. 1 0 1 4 5 11
FORSCHUNGSZENTRUM JULICH GMBH 2 2 3 1 2 10
NISSHINBO INDUSTRIES, INC. 8 2 0 0 0 10
ROBERT BOSCH GMBH 1 0 2 3 4 10
ASAHI GLASS COMPANY, LTD. 3 1 3 1 1 9
GORE ENTERPRISE HOLDINGS, INC. 1 2 2 2 2 9
JOHNSON MATTHEY PUBLIC LIMITED COMPANY 3 3 0 3 0 9
NUCELLSYS GMBH 0 2 3 4 0 9
POLYPLUS BATTERY COMPANY, INC. 2 0 3 2 2 9
SEIMI CHEMICAL CO., LTD. 1 1 1 3 3 9
UNIVERSITY OF CHICAGO 5 3 1 0 0 9
AISIN SEIKI KABUSHIKI KAISHA 5 0 1 1 1 8
FORD MOTOR COMPANY 2 1 2 1 2 8
FUJI PHOTO FILM CO., LTD 3 5 0 0 0 8
KYOCERA CORPORATION 1 0 3 2 2 8
NEC TOKIN CORPORATION 3 1 4 0 0 8
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 0 0 6 0 2 8
SHINKO ELECTRIC INDUSTRIES CO., LTD. 0 2 3 2 1 8
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. 0 1 2 1 4 8
UNIVERSITY OF ILLINOIS 1 1 3 0 3 8
BALLARD POWER SYSTEMS AG 7 0 0 0 0 7
DAIMLER AG 0 0 0 1 6 7
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. 1 2 0 0 4 7
HONEYWELL INTERNATIONAL INC. 0 1 0 3 3 7
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 1 2 0 1 3 7
JAPAN STORAGE BATTERY COMPANY LIMITED 5 2 0 0 0 7
MITSUBISHI MATERIALS CORPORATION 1 1 3 1 1 7
NITTO DENKO CORPORATION 2 1 0 2 2 7
OVONIC FUEL CELL COMPANY LLC 0 3 2 1 1 7
POLYFUEL, INC. 0 2 1 2 2 7
RELION, INC. 2 4 0 1 0 7
ROLLS-ROYCE PLC 0 1 0 4 2 7
A123SYSTEMS, INC. 0 1 1 3 1 6
ALBERTA RESEARCH COUNCIL INC. 3 0 2 1 0 6
ASIA PACIFIC FUEL CELL TECHNOLOGIES, LTD. 1 3 2 0 0 6
BATTELLE MEMORIAL INSTITUTE 0 0 3 2 1 6
CASIO COMPUTER CO. LTD. 1 0 0 1 4 6
CYMBET CORPORATION 0 2 2 1 1 6
DAI NIPPON PRINTING CO. LTD 1 2 0 0 3 6
GAS TECHNOLOGY INSTITUTE 2 2 0 2 0 6
HITACHI CHEMICAL COMPANY, LTD. 1 0 1 4 0 6
ION AMERICA CORPORATION 2 4 0 0 0 6
KABUSHIKIKAISHA EQUOS RESEARCH CO., LTD. 2 2 1 1 0 6
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY 0 3 1 1 1 6
NAN YA PRINTED CIRCUIT BOARD CORPORATION 0 0 0 0 6 6
NUVERA FUEL CELLS EUROPE S.R.L. 1 1 2 1 1 6
PLURION LIMITED 0 0 4 0 2 6
PROTONEX TECHNOLOGY CORPORATION 1 1 1 1 2 6
QUESTAIR TECHNOLOGIES INC. 2 2 1 1 0 6
ROVCAL, INC. 3 1 1 0 1 6
SHOWA DENKO KABUSHIKI KAISHA 1 0 1 2 2 6
SION POWER CORPORATION 0 0 2 3 1 6
TDK CORPORATION 0 0 2 4 0 6
TEXACO OVONIC FUEL CELL, LLC 2 4 0 0 0 6
VERSA POWER SYSTEMS, LTD. 0 0 4 0 2 6
AEROVIRONMENT INC. 0 0 0 0 5 5
BRIDGESTONE CORPORATION 1 1 1 1 1 5
CABOT CORPORATION 1 1 2 0 1 5
CERAMIC FUEL CELLS LIMITED 1 2 0 1 1 5
DAIDO METAL COMPANY 0 2 1 2 0 5
DARAMIC, INC. 2 1 1 1 0 5
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE 1 1 1 2 0 5
ENERDEL, INC. 2 2 0 0 1 5
FUJITSU LIMITED 0 2 0 0 3 5
JOHNSON CONTROLS TECHNOLOGY COMPANY 3 1 0 1 0 5
LYNNTECH, INC. 2 2 0 0 1 5
MITSUBISHI DENKI KABUSHIKI KAISHA 1 2 1 0 1 5
NEAH POWER SYSTEMS INC 1 2 2 0 0 5
NIPPON KODOSHI CORPORATION 2 1 1 1 0 5
NOK CORPORATION 0 1 2 1 1 5
SAMSUNG ELECTRONICS CO., LTD. 0 0 2 1 2 5
SHIN ETSU CHEMICAL CO., LTD. 1 1 1 2 0 5
SUMITOMO CHEMICAL COMPANY, LIMITED 1 0 0 2 2 5
VB AUTOBATTERIE GMBH & CO. KGAA 1 2 0 0 2 5


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U.S. Patent and Trademark Office
Electronic Information Products Division - PTMT
P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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