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

Patenting In Technology Classes,
Breakout By Organization

Count of 2007 - 2011 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 2007 2008 2009 2010 2011 Total
RICOH COMPANY, LTD. 16 15 27 34 17 109
NATIONAL SEMICONDUCTOR CORPORATION 14 17 24 14 14 83
TEXAS INSTRUMENTS, INCORPORATED 10 12 10 19 30 81
ROHM COMPANY LIMITED 11 8 18 16 14 67
INTERSIL AMERICAS INC. 11 9 8 11 21 60
POWER INTEGRATIONS, INC. 8 7 10 12 14 51
RICHTEK TECHNOLOGY CORP. 9 4 10 11 14 48
INTERNATIONAL RECTIFIER CORPORATION 8 5 8 8 15 44
INTEL CORPORATION 8 7 10 11 5 41
FREESCALE SEMICONDUCTOR, INC. 4 4 8 15 9 40
INFINEON TECHNOLOGIES AG 6 4 8 11 11 40
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC 2 4 7 15 11 39
~INDIVIDUALLY OWNED PATENT 10 7 9 7 6 39
LINEAR TECHNOLOGY CORPORATION 7 9 5 9 7 37
PANASONIC CORPORATION 0 0 9 15 11 35
SEIKO INSTRUMENTS INC. 3 4 7 6 11 31
SAMSUNG ELECTRONICS CO., LTD. 3 4 3 8 11 29
FUJITSU LIMITED 12 8 3 0 5 28
MICREL INCORPORATED 9 7 5 6 1 28
STMICROELECTRONICS S.R.L. 4 3 8 4 9 28
ANALOG DEVICES, INC. 5 4 5 6 3 23
SYSTEM-GENERAL CORPORATION 2 2 11 5 3 23
RENESAS TECHNOLOGY CORPORATION 7 6 5 4 0 22
INTERNATIONAL BUSINESS MACHINES CORPORATION 2 5 2 4 8 21
MARVELL WORLD TRADE LTD. 4 3 5 4 4 20
MONOLITHIC POWER SYSTEMS, INC. 1 1 2 5 11 20
NXP B.V. 4 4 4 3 4 19
SILICON LABORATORIES INC. 0 8 6 3 2 19
BROADCOM CORPORATION 2 4 4 5 3 18
MARVELL INTERNATIONAL LTD. 2 1 5 6 4 18
SANKEN ELECTRIC COMPANY LIMITED 6 2 2 3 5 18
DELL PRODUCTS, L.P. 1 4 6 0 6 17
TOSHIBA CORPORATION 3 1 6 4 3 17
DENSO CORPORATION 6 1 2 3 4 16
FAIRCHILD SEMICONDUCTOR CORPORATION 0 3 3 8 2 16
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 10 6 0 0 0 16
O2 MICRO INTERNATIONAL LTD. 1 4 5 5 1 16
ST-ERICSSON SA 0 0 3 6 7 16
RENESAS ELECTRONICS CORP. 0 0 0 2 13 15
DELTA ELECTRONICS INC. 3 2 3 1 4 13
TEXAS INSTRUMENTS DEUTSCHLAND GMBH 1 3 2 1 6 13
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. 3 0 6 4 0 13
ADVANCED ANALOG TECHNOLOGY, INC. 1 2 3 3 3 12
ATMEL CORPORATION 5 3 1 3 0 12
FUJITSU SEMICONDUCTOR LIMITED 0 0 0 4 8 12
HONG FU JIN PRECISION INDUSTRY (SHENZHEN) CO., LTD. 2 2 0 6 2 12
MEDIATEK INC. 0 2 4 2 4 12
OKI SEMICONDUCTOR CO., LTD. 0 0 5 3 4 12
STMICROELECTRONICS S.A. 1 4 4 2 1 12
FUJITSU MICROELECTRONICS LIMITED 0 0 4 7 0 11
MICRON TECHNOLOGY, INC. 2 2 2 2 3 11
POWER-ONE, INC. 3 5 1 2 0 11
CHIL SEMICONDUCTOR, INC. 0 1 3 4 2 10
CIRRUS LOGIC, INC. 0 0 0 4 6 10
DIALOG SEMICONDUCTOR GMBH 4 1 4 1 0 10
INFINEON TECHNOLOGIES AUSTRIA AG 0 0 0 2 8 10
MITSUBISHI DENKI KABUSHIKI KAISHA 1 1 1 5 2 10
NEC ELECTRONICS CORPORATION 2 3 2 3 0 10
PRIMARION, INC. 3 1 3 0 3 10
ADVANCED ANALOGIC TECHNOLOGIES, INC. 0 0 1 5 3 9
CYPRESS SEMICONDUCTOR CORP. 1 2 1 1 4 9
HYNIX SEMICONDUCTOR INC. 1 1 1 2 4 9
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, TAIWAN 2 2 0 2 3 9
MITSUMI ELECTRIC CO., LTD. 2 2 2 3 0 9
MURATA MANUFACTURING CO., LTD. 4 1 2 1 1 9
SIEMENS AKTIENGESELLSCHAFT 2 3 1 3 0 9
VOLTERRA SEMICONDUCTOR CORPORATION 1 1 2 3 2 9
FAIRCHILD KOREA SEMICONDUCTOR, LTD. 0 0 3 3 2 8
FARADAY TECHNOLOGY CORPORATION 3 1 0 3 1 8
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 1 0 5 0 2 8
HONEYWELL INTERNATIONAL INC. 1 1 3 1 2 8
L& L ENGINEERING, LLC 0 0 2 2 4 8
ABB RESEARCH LTD. 0 0 0 6 1 7
ANPEC ELECTRONICS CORPORATION 1 1 3 0 2 7
APPLE, INC. 1 0 1 3 2 7
ASUSTEK COMPUTER INC. 0 1 3 1 2 7
CANON KABUSHIKI KAISHA 3 1 0 2 1 7
ENPIRION, INC. 0 1 1 2 3 7
INVENTEC CORPORATION 0 0 1 4 2 7
LUTRON ELECTRONICS COMPANY, INC. 1 1 2 2 1 7
NOVATEK MICROELECTRONICS CORP. 0 2 3 1 1 7
REALTEK SEMICONDUCTOR CORPORATION 1 1 4 1 0 7
SEIKO EPSON CORPORATION 1 1 2 3 0 7
SEMTECH CORPORATION 1 3 1 2 0 7
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 3 2 1 1 0 7
ZILKER LABS, INC. 1 1 1 3 1 7
ACTIVE-SEMI, INC. 0 0 0 3 3 6
AIMTRON TECHNOLOGY CORP. 5 1 0 0 0 6
ALTERA CORPORATION 2 0 2 1 1 6
ARTESYN TECHNOLOGIES, INC. 0 3 3 0 0 6
ASTEC INTERNATIONAL, LTD. 0 1 1 1 3 6
FUJI ELECTRIC DEVICE TECHNOLOGY CO., LTD. 0 0 3 1 2 6
FUJI ELECTRIC SYSTEMS CO., LTD. 0 0 0 2 4 6
FUJITSU TEN LIMITED 0 0 1 4 1 6
HITACHI, LTD 2 0 2 0 2 6
RF MICRO DEVICES, INC. 1 2 2 0 1 6
SKYWORKS SOLUTIONS, INC. 0 1 2 2 1 6
UPI SEMICONDUCTOR CORPORATION 0 0 0 0 6 6
WOLFSON MICROELECTRONICS LIMITED 0 1 2 2 1 6
ADVANTEST CORP. 0 1 1 1 2 5
CAMBRIDGE SEMICONDUCTOR LIMITED 0 0 2 3 0 5
MICROSEMI CORP. 0 1 0 0 4 5
NVIDIA CORPORATION 2 0 3 0 0 5
QUALCOMM, INC. 0 1 0 3 1 5
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. 1 0 1 2 1 5


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email: oeip@uspto.gov

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