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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 1998 - 2002 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 320, Electricity: Battery or Capacitor Charging or Discharging

( 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 1998 1999 2000 2001 2002 Total
~Individually Owned Patent 31 34 40 41 38 184
MOTOROLA, INC. 13 14 15 15 13 70
SONY CORPORATION 7 11 12 11 9 50
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 0 3 10 16 14 43
SAMSUNG ELECTRONICS CO., LTD. 8 13 6 4 4 35
FUJITSU LIMITED 6 4 4 6 11 31
SANYO ELECTRIC CO., LTD. 6 8 6 5 6 31
SEIKO INSTRUMENTS INC. 2 6 11 7 3 29
ERICSSON, INC. 9 8 6 2 0 25
HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) 2 4 6 7 5 24
NEC CORPORATION 6 4 6 3 5 24
TOYODA JIDOSHOKKI SEISAKUSHO KABUSHIKI KAISHA 0 0 5 9 8 22
BLACK & DECKER INC. 2 4 6 6 3 21
MAKITA CORPORATION 1 2 3 8 7 21
INTERNATIONAL BUSINESS MACHINES CORPORATION 3 4 2 5 5 19
HEWLETT-PACKARD COMPANY 3 0 5 3 7 18
HITACHI, LTD 2 3 4 6 3 18
LUCENT TECHNOLOGIES INC. 3 4 8 1 2 18
TOYOTA JIDOSHA K.K. 1 5 7 3 2 18
CANON KABUSHIKI KAISHA 7 4 5 0 1 17
TELEFONAKTIEBOLAGET LM ERICSSON 1 2 2 8 4 17
U.S. PHILIPS CORPORATION 2 6 4 3 2 17
COMPAQ COMPUTER CORPORATION, INC. 5 6 5 0 0 16
YAZAKI CORP. 2 2 0 9 1 14
DELL PRODUCTS, L.P. 1 3 4 5 0 13
GENERAL MOTORS CORPORATION 1 1 4 3 4 13
INTERMEC IP CORP. 0 3 6 4 0 13
NISSAN MOTOR COMPANY, LIMITED 2 2 6 0 2 12
ALCATEL 0 2 3 1 5 11
FORD GLOBAL TECHNOLOGIES, INC. 1 0 0 7 3 11
JEOL LTD. 2 2 2 2 2 10
LOCKHEED MARTIN CORPORATION 2 3 2 1 2 10
MIDTRONICS, INC. 0 0 2 4 4 10
NATIONAL SEMICONDUCTOR CORPORATION 1 2 3 2 2 10
NOKIA MOBILE PHONES LTD. 3 0 2 2 3 10
TEXAS INSTRUMENTS, INCORPORATED 3 0 0 4 3 10
DALLAS SEMICONDUCTOR CORPORATION 1 2 2 3 1 9
MITSUBISHI DENKI KABUSHIKI KAISHA 0 3 2 0 4 9
MITSUMI ELECTRIC CO., LTD. 1 1 1 5 1 9
SNAP-ON TECHNOLOGIES, INC. 0 0 0 7 2 9
SPACE SYSTEMS/LORAL, INC. 0 3 5 0 1 9
TOSHIBA CORPORATION 3 2 4 0 0 9
DENSO CORPORATION 0 0 2 4 2 8
HITACHI KOKI COMPANY, LIMITED 0 3 2 1 2 8
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 0 0 0 8 8
ROHM COMPANY LIMITED 0 5 1 2 0 8
SIEMENS AKTIENGESELLSCHAFT 0 0 3 3 2 8
DELPHI TECHNOLOGIES, INC. 0 0 1 3 3 7
SUMITOMO WIRING SYSTEMS, LTD., CO. 2 4 1 0 0 7
TELXON CORPORATION 5 0 0 1 1 7
JAPAN STORAGE BATTERY COMPANY LIMITED 0 0 0 6 0 6
MURATA MANUFACTURING CO., LTD. 0 0 1 5 0 6
NORAND CORPORATION 3 2 1 0 0 6
PACKARD BELL NEC INC. 4 1 0 1 0 6
QUALCOMM, INC. 0 0 3 3 0 6
VB AUTOBATTERIE GMBH 0 2 2 1 1 6
YAMAHA HATSUDOKI KABUSHIKI KAISHA, YAMAHA MOTOR CO., LTD. 2 2 0 0 2 6
BOEING COMPANY 0 1 1 0 3 5
HUGHES ELECTRONICS CORP. 0 1 2 2 0 5
HYUNDAI MOTOR CO., LTD. 0 0 1 2 2 5
INTERNATIONAL COMPONENTS CORPORATION 2 2 0 0 1 5
JOHNS HOPKINS UNIVERSITY 0 1 1 1 2 5
JOHNSON CONTROLS TECHNOLOGY COMPANY 0 0 2 2 1 5
O2 MICRO INTERNATIONAL LTD. 0 0 0 4 1 5
RICOH COMPANY, LTD. 0 2 0 2 1 5
STRYKER CORPORATION 0 1 2 2 0 5
TOTAL BATTERY MANAGEMENT, INC. 1 1 2 1 0 5
UNITED STATES OF AMERICA, ARMY 1 0 2 2 0 5


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