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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Branch (PTMB)

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 2001 2002 2003 2004 2005 Total
TEXAS INSTRUMENTS, INCORPORATED 11 10 22 18 13 74
~Individually Owned Patent 16 18 5 8 11 58
STMICROELECTRONICS S.R.L. 15 13 10 2 10 50
INTEL CORPORATION 12 14 13 6 4 49
NATIONAL SEMICONDUCTOR CORPORATION 12 3 13 10 10 48
INFINEON TECHNOLOGIES AG 3 3 6 10 8 30
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 8 11 10 0 29
FUJITSU LIMITED 10 3 5 5 4 27
STMICROELECTRONICS S.A. 4 9 5 3 6 27
ROHM COMPANY LIMITED 2 5 4 3 12 26
MITSUBISHI DENKI KABUSHIKI KAISHA 11 6 4 2 2 25
LINEAR TECHNOLOGY CORPORATION 3 4 7 7 2 23
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC 3 8 3 4 4 22
MICRON TECHNOLOGY, INC. 3 2 3 7 5 20
INTERNATIONAL BUSINESS MACHINES CORPORATION 6 6 1 3 2 18
INTERSIL AMERICAS INC. 0 1 1 10 6 18
SEIKO INSTRUMENTS INC. 5 4 2 5 2 18
POWER INTEGRATIONS, INC. 1 1 3 7 5 17
VOLTERRA SEMICONDUCTOR CORPORATION 6 6 3 1 1 17
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 6 2 1 3 3 15
NEC CORPORATION 4 7 4 0 0 15
ANALOG DEVICES, INC. 5 3 0 1 5 14
PRIMARION, INC. 0 2 5 4 3 14
SAMSUNG ELECTRONICS CO., LTD. 3 2 4 2 3 14
MOTOROLA, INC. 4 3 3 2 1 13
DENSO CORPORATION 2 3 3 1 3 12
FYRE STORM, INC. 0 0 0 2 10 12
OKI ELECTRIC INDUSTRY CO., LTD. 2 2 1 2 5 12
SEMTECH CORPORATION 1 8 2 1 0 12
SIEMENS AKTIENGESELLSCHAFT 2 6 2 1 1 12
ROBERT BOSCH GMBH 4 2 2 1 1 10
SEIKO EPSON CORPORATION 1 4 2 1 2 10
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 0 2 2 4 2 10
CHAMPION MICROELECTRONIC CORP. 0 3 4 2 0 9
INTERNATIONAL RECTIFIER CORPORATION 0 0 1 5 3 9
RICOH COMPANY, LTD. 1 2 1 1 4 9
TOSHIBA CORPORATION 3 3 1 0 2 9
DELTA ELECTRONICS INC. 1 1 2 1 3 8
HITACHI, LTD 0 4 2 1 1 8
MAXIM INTEGRATED PRODUCTS, INC. 2 6 0 0 0 8
RICHTEK TECHNOLOGY CORP. 0 1 1 0 6 8
TDK CORPORATION 1 1 1 3 2 8
U.S. PHILIPS CORPORATION 7 1 0 0 0 8
FAIRCHILD SEMICONDUCTOR CORPORATION 1 0 2 1 3 7
GENERAL ELECTRIC COMPANY 2 2 3 0 0 7
MICREL INCORPORATED 2 1 1 1 2 7
SONY CORPORATION 4 0 1 2 0 7
ALCATEL 1 2 0 1 2 6
ASEA BROWN BOVERI AB 2 2 0 2 0 6
CANON KABUSHIKI KAISHA 1 4 0 1 0 6
HONEYWELL INTERNATIONAL INC. 3 2 1 0 0 6
INTERSIL CORPORATION, INC. 3 0 1 1 1 6
LUCENT TECHNOLOGIES INC. 6 0 0 0 0 6
POWER-ONE LIMITED 0 0 0 2 4 6
SYSTEM-GENERAL CORPORATION 0 0 1 2 3 6
TECHNICAL WITTS, INC. 3 0 2 1 0 6
AMI SEMICONDUCTOR, INC. 0 2 2 1 0 5
CYPRESS SEMICONDUCTOR CORP. 1 2 2 0 0 5
FUJI ELECTRIC CO., LTD. 3 1 0 0 1 5
HEWLETT-PACKARD COMPANY 3 2 0 0 0 5
MARVELL INTERNATIONAL LTD. 0 2 1 0 2 5
MURATA MANUFACTURING CO., LTD. 0 3 0 1 1 5
RENESAS TECHNOLOGY CORPORATION 0 0 0 3 2 5
SIGMATEL INC. 2 2 0 0 1 5
SIPEX CORPORATION 0 1 3 0 1 5
UIS ABLER ELECTRONICS CO., LTD. 0 0 0 1 4 5
WINBOND ELECTRONICS CORP. 0 0 1 2 2 5
YAZAKI CORP. 1 1 2 1 0 5


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Electronic Information Products Division - PTMB
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Alexandria VA 22313-1450

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