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

Patenting In Technology Classes,
Breakout By Organization

Count of 2006 - 2010 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 323, Electricity: Power Supply or Regulation Systems

( 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 2006 2007 2008 2009 2010 Total
RICOH COMPANY, LTD. 5 16 15 27 34 97
NATIONAL SEMICONDUCTOR CORPORATION 18 14 17 24 14 87
TEXAS INSTRUMENTS, INCORPORATED 15 10 12 10 19 66
ROHM COMPANY LIMITED 9 11 8 18 16 62
INTERSIL AMERICAS INC. 18 11 9 8 11 57
POWER INTEGRATIONS, INC. 7 8 7 10 12 44
~INDIVIDUALLY OWNED PATENT 11 10 7 9 7 44
INTEL CORPORATION 4 8 7 10 11 40
INFINEON TECHNOLOGIES AG 10 6 4 8 11 39
INTERNATIONAL RECTIFIER CORPORATION 9 8 5 8 8 38
RICHTEK TECHNOLOGY CORP. 4 9 4 10 11 38
MICREL INCORPORATED 8 9 7 5 6 35
FREESCALE SEMICONDUCTOR, INC. 3 4 4 8 15 34
LINEAR TECHNOLOGY CORPORATION 4 7 9 5 9 34
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC 6 2 4 7 15 34
FUJITSU LIMITED 8 12 8 3 0 31
ANALOG DEVICES, INC. 8 5 4 5 6 28
RENESAS TECHNOLOGY CORPORATION 5 7 6 5 4 27
SEIKO INSTRUMENTS INC. 5 3 4 7 6 25
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 8 10 6 0 0 24
PANASONIC CORPORATION 0 0 0 9 15 24
STMICROELECTRONICS S.R.L. 5 4 3 8 4 24
SYSTEM-GENERAL CORPORATION 2 2 2 11 5 22
MARVELL WORLD TRADE LTD. 5 4 3 5 4 21
SAMSUNG ELECTRONICS CO., LTD. 3 3 4 3 8 21
BROADCOM CORPORATION 3 2 4 4 5 18
DENSO CORPORATION 5 6 1 2 3 17
O2 MICRO INTERNATIONAL LTD. 2 1 4 5 5 17
POWER-ONE, INC. 6 3 5 1 2 17
SILICON LABORATORIES INC. 0 0 8 6 3 17
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 2 5 2 4 16
ATMEL CORPORATION 3 5 3 1 3 15
FAIRCHILD SEMICONDUCTOR CORPORATION 1 0 3 3 8 15
MARVELL INTERNATIONAL LTD. 1 2 1 5 6 15
NXP B.V. 0 4 4 4 3 15
TOSHIBA CORPORATION 1 3 1 6 4 15
SANKEN ELECTRIC COMPANY LIMITED 1 6 2 2 3 14
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. 1 3 0 6 4 14
DELTA ELECTRONICS INC. 4 3 2 3 1 13
DIALOG SEMICONDUCTOR GMBH 2 4 1 4 1 12
STMICROELECTRONICS S.A. 1 1 4 4 2 12
DELL PRODUCTS, L.P. 0 1 4 6 0 11
FUJITSU MICROELECTRONICS LIMITED 0 0 0 4 7 11
KONINKLIJKE PHILIPS ELECTRONICS N.V. 7 1 2 1 0 11
MEDIATEK INC. 3 0 2 4 2 11
NEC ELECTRONICS CORPORATION 1 2 3 2 3 11
SIEMENS AKTIENGESELLSCHAFT 2 2 3 1 3 11
HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD. 0 2 2 0 6 10
MICRON TECHNOLOGY, INC. 2 2 2 2 2 10
MONOLITHIC POWER SYSTEMS, INC. 1 1 1 2 5 10
ADVANCED ANALOG TECHNOLOGY, INC. 0 1 2 3 3 9
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 1 1 5 9
MITSUMI ELECTRIC CO., LTD. 0 2 2 2 3 9
SEIKO EPSON CORPORATION 2 1 1 2 3 9
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 2 3 2 1 1 9
ST-ERICSSON SA 0 0 0 3 6 9
AIMTRON TECHNOLOGY CORP. 2 5 1 0 0 8
CHIL SEMICONDUCTOR, INC. 0 0 1 3 4 8
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 1 0 5 0 8
MURATA MANUFACTURING CO., LTD. 0 4 1 2 1 8
OKI SEMICONDUCTOR CO., LTD. 0 0 0 5 3 8
TDK CORPORATION 6 1 0 1 0 8
TEXAS INSTRUMENTS DEUTSCHLAND GMBH 1 1 3 2 1 8
ADVANCED ANALOGIC TECHNOLOGIES, INC. 1 0 0 1 5 7
ASTEC INTERNATIONAL, LTD. 4 0 1 1 1 7
CYPRESS SEMICONDUCTOR CORP. 2 1 2 1 1 7
FARADAY TECHNOLOGY CORPORATION 0 3 1 0 3 7
HONEYWELL INTERNATIONAL INC. 1 1 1 3 1 7
PRIMARION, INC. 0 3 1 3 0 7
REALTEK SEMICONDUCTOR CORPORATION 0 1 1 4 1 7
SEMTECH CORPORATION 0 1 3 1 2 7
VOLTERRA SEMICONDUCTOR CORPORATION 0 1 1 2 3 7
ABB RESEARCH LTD. 0 0 0 0 6 6
ARTESYN TECHNOLOGIES, INC. 0 0 3 3 0 6
ASUSTEK COMPUTER INC. 1 0 1 3 1 6
CANON KABUSHIKI KAISHA 0 3 1 0 2 6
ENPIRION, INC. 2 0 1 1 2 6
FAIRCHILD KOREA SEMICONDUCTOR, LTD. 0 0 0 3 3 6
FYRE STORM, INC. 3 3 0 0 0 6
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 3 1 0 1 1 6
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 0 2 2 0 2 6
LUTRON ELECTRONICS COMPANY, INC. 0 1 1 2 2 6
NOVATEK MICROELECTRONICS CORP. 0 0 2 3 1 6
RF MICRO DEVICES, INC. 1 1 2 2 0 6
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. 2 1 0 1 2 6
WINBOND ELECTRONICS CORP. 2 2 2 0 0 6
ZILKER LABS, INC. 0 1 1 1 3 6
ALTERA CORPORATION 0 2 0 2 1 5
ANPEC ELECTRONICS CORPORATION 0 1 1 3 0 5
APPLE COMPUTER, INC. 0 1 0 1 3 5
CAMBRIDGE SEMICONDUCTOR LIMITED 0 0 0 2 3 5
FUJITSU TEN LIMITED 0 0 0 1 4 5
HITACHI, LTD 1 2 0 2 0 5
HYNIX SEMICONDUCTOR INC. 0 1 1 1 2 5
INVENTEC CORPORATION 0 0 0 1 4 5
KIAWE FOREST, LLC 4 1 0 0 0 5
LEADTREND TECHNOLOGY CORPORATION 2 0 1 0 2 5
MICROSEMI CORP. 4 0 1 0 0 5
NVIDIA CORPORATION 0 2 0 3 0 5
SKYWORKS SOLUTIONS, INC. 0 0 1 2 2 5
VIA TECHNOLOGIES, INC. 1 0 3 1 0 5
WOLFSON MICROELECTRONICS LIMITED 0 0 1 2 2 5
XANTREX TECHNOLOGY INC. 1 0 3 1 0 5


PTMT Contacts

Questions regarding these reports should be directed to:

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

address of PTMT pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
selected PTMT files available for download at : http://www.uspto.gov/web/offices/ac/ido/oeip/taf/data/


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