Skip menu navigation Home > Listing of Viewable PTMD Reports > Table of Contents for This Set of Reports


U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 2000 - 2004 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 363, Electric Power Conversion 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 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 28 32 32 19 13 124
LUCENT TECHNOLOGIES INC. 41 12 0 0 0 53
SONY CORPORATION 5 13 19 8 7 52
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 20 15 16 51
MITSUBISHI DENKI KABUSHIKI KAISHA 10 14 9 8 8 49
MURATA MANUFACTURING CO., LTD. 12 13 9 11 4 49
HITACHI, LTD 6 8 16 13 5 48
DELTA ELECTRONICS INC. 4 5 15 13 5 42
TOSHIBA CORPORATION 11 7 6 6 4 34
SIEMENS AKTIENGESELLSCHAFT 8 10 5 1 8 32
GENERAL ELECTRIC COMPANY 6 10 6 3 4 29
POWER INTEGRATIONS, INC. 2 4 8 5 9 28
FUJI ELECTRIC CO., LTD. 9 3 7 4 2 25
U.S. PHILIPS CORPORATION 14 7 4 0 0 25
ASTEC INTERNATIONAL, LTD. 6 7 7 2 2 24
INTEL CORPORATION 3 5 5 7 2 22
INTERNATIONAL BUSINESS MACHINES CORPORATION 4 4 11 2 1 22
TEXAS INSTRUMENTS, INCORPORATED 2 8 4 5 3 22
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 3 5 10 2 1 21
SANKEN ELECTRIC COMPANY LIMITED 1 2 5 9 3 20
ASEA BROWN BOVERI AB 6 4 6 3 0 19
INFINEON TECHNOLOGIES AG 0 8 2 7 2 19
ALCATEL 6 6 2 1 3 18
SAMSUNG ELECTRONICS CO., LTD. 4 6 5 0 3 18
TDK CORPORATION 3 3 3 5 4 18
POWERWARE CORPORATION 1 9 3 3 1 17
STMICROELECTRONICS S.R.L. 5 3 8 0 1 17
FUJITSU LIMITED 1 4 4 4 2 15
INTERNATIONAL RECTIFIER CORPORATION 3 3 2 2 4 14
NEC CORPORATION 4 3 5 2 0 14
SANYO ELECTRIC CO., LTD. 3 3 1 3 4 14
CANON KABUSHIKI KAISHA 2 4 2 3 2 13
ERICSSON, INC. 5 4 3 0 0 12
MOTOROLA, INC. 6 2 4 0 0 12
TELEFONAKTIEBOLAGET LM ERICSSON 5 2 5 0 0 12
ARTESYN TECHNOLOGIES, INC. 1 2 2 3 3 11
SEIKO EPSON CORPORATION 0 5 4 0 2 11
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC 2 2 6 1 0 11
HONEYWELL INTERNATIONAL INC. 0 5 1 2 2 10
PHILIPS ELECTRONICS NORTH AMERICA CORP. 5 2 3 0 0 10
SYSTEM-GENERAL CORPORATION 0 0 1 3 6 10
DENSO CORPORATION 2 4 0 1 2 9
FAIRCHILD SEMICONDUCTOR CORPORATION 0 0 6 3 0 9
ILLINOIS TOOL WORKS INC. 2 2 1 3 1 9
NORTHROP GRUMMAN CORPORATION 4 1 3 0 1 9
ROCKWELL TECHNOLOGIES, LLC 2 6 1 0 0 9
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 2 2 2 3 0 9
THOMSON LICENSING S.A. 4 2 1 2 0 9
BOEING COMPANY 1 0 3 1 3 8
MATSUSHITA ELECTRIC WORKS, LTD. 6 1 0 1 0 8
O2 MICRO INTERNATIONAL LTD. 0 1 2 2 3 8
OTIS ELEVATOR COMPANY 6 0 1 0 1 8
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBH 2 4 0 2 0 8
ROBERT BOSCH GMBH 1 3 3 1 0 8
SANSHA ELECTRIC MANUFACTURING CO., LTD. 2 3 1 1 1 8
TECHNICAL WITTS, INC. 2 2 3 1 0 8
VIRGINIA TECH INTELLECTUAL PROPERTIES, INC. 0 1 2 2 3 8
ADVANCED ENERGY INDUSTRIES, INC. 0 1 1 3 2 7
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 0 1 1 4 1 7
KABUSHIKI KAISHA YASKAWA DENKI 1 1 3 0 2 7
LG ELECTRONICS INC. 1 3 3 0 0 7
STMICROELECTRONICS S.A. 2 1 2 2 0 7
UNIVERSITY OF HONG KONG 1 0 4 1 1 7
DELL PRODUCTS, L.P. 2 3 0 1 0 6
FAIRCHILD KOREA SEMICONDUCTOR, LTD. 2 2 1 1 0 6
FIDELIX Y.K. 2 1 2 0 1 6
HEWLETT-PACKARD COMPANY 1 1 3 1 0 6
HUGHES ELECTRONICS CORP. 3 3 0 0 0 6
IWATT, INC. 0 2 4 0 0 6
KOKUSAN DENKI CO., LTD 0 2 1 2 1 6
MOBILITY ELECTRONICS, INC. 0 0 0 2 4 6
NAGANO JAPAN RADIO CO., LTD. 1 5 0 0 0 6
OKI ELECTRIC INDUSTRY CO., LTD. 1 2 0 2 1 6
POWER-ONE, INC. 0 4 2 0 0 6
SEMTECH CORPORATION 1 1 0 1 3 6
SGS-THOMSON MICROELECTRONICS S.A. 3 3 0 0 0 6
ABB (SCHWEIZ) AG 0 1 1 1 2 5
ABB PATENT GMBH 1 2 1 1 0 5
BALLARD POWER SYSTEMS CORPORATION 0 0 1 2 2 5
COMARCO WIRELESS TECHNOLOGIES, INC. 1 2 0 0 2 5
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 4 0 1 0 0 5
DENSEI-LAMBDA KABUSHIKI KAISHA 0 0 2 2 1 5
DEUTSCHE THOMSON-BRANDT GMBH 3 1 1 0 0 5
DI/DT, INC. 0 0 0 1 4 5
FUNAI ELECTRIC CO., LTD. 0 3 0 1 1 5
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 0 2 3 5
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. 2 2 1 0 0 5
LINFINITY MICROELECTRONICS, INC. 0 3 1 1 0 5
NOKIA CORPORATION 0 2 0 2 1 5
ROBICON CORPORATION 1 2 1 0 1 5
ROCKWELL AUTOMATION TECHNOLOGIES, INC. 0 0 4 1 0 5
SEMIKRON ELEKTRONIK GMBH 1 0 1 0 3 5
SHINDENGEN ELECTRIC MANUFACTURING CO., LTD 2 1 0 1 1 5
SWITCH POWER, INC. 0 3 1 1 0 5
TYCO ELECTRONICS POWER SYSTEMS, INC. 0 0 0 2 3 5
VLT CORPORATION 1 2 1 1 0 5


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

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

address of PTMD pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


Top

Skip menu navigation Home > Listing of Viewable PTMD Reports > Table of Contents for This Set of Reports