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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 381, Electrical Audio Signal Processing Systems and Devices

( 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
~Individually Owned Patent 43 68 67 68 52 298
SONY CORPORATION 9 9 13 16 12 59
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 4 12 13 13 15 57
NEW TRANSDUCERS LIMITED 18 10 9 7 6 50
KONINKLIJKE PHILIPS ELECTRONICS N.V. 0 4 9 15 10 38
SIEMENS AUDIOLOGISCHE TECHNIK GMBH 4 6 9 5 7 31
PIONEER CORPORATION 1 0 5 13 9 28
PHONAK AG 1 2 7 10 5 25
CITIZEN ELECTRONICS CO., LTD. 2 1 6 10 4 23
FUJITSU LIMITED 5 2 6 8 0 21
HARMAN INTERNATIONAL INDUSTRIES, INC. 4 5 4 5 3 21
AMERICAN TECHNOLOGY CORPORATION 6 4 5 2 3 20
STAR MICRONICS CO., LTD. 0 2 5 8 4 19
YAMAHA CORPORATION 1 3 4 8 2 18
GN RESOUND AS 3 3 1 5 5 17
MURATA MANUFACTURING CO., LTD. 1 3 6 3 4 17
BOSE CORPORATION 2 2 2 8 2 16
ETYMOTIC RESEARCH, INC. 3 2 3 6 1 15
CREATIVE TECHNOLOGY LIMITED 1 2 1 5 5 14
NEC CORPORATION 6 2 2 3 1 14
SAMSUNG ELECTRONICS CO., LTD. 2 2 7 3 0 14
TEXAS INSTRUMENTS, INCORPORATED 1 2 2 6 3 14
WIDEX A/S 0 0 3 9 2 14
SONIC INNOVATIONS, INC. 2 4 3 3 0 12
THOMSON LICENSING S.A. 0 1 3 5 2 11
TELEFONAKTIEBOLAGET LM ERICSSON 0 3 2 3 2 10
UNITED STATES OF AMERICA, NAVY 1 4 1 2 2 10
INTERNATIONAL BUSINESS MACHINES CORPORATION 1 4 1 1 2 9
MITSUBISHI DENKI KABUSHIKI KAISHA 1 0 1 4 3 9
NOKIA MOBILE PHONES LTD. 3 1 1 3 1 9
PIONEER ELECTRONIC CORPORATION 2 4 1 1 1 9
AKG ACOUSTICS GMBH 0 1 4 1 2 8
HARMAN AUDIO ELECTRONIC SYSTEMS GMBH 1 2 2 2 1 8
JL AUDIO, INC. 2 2 3 1 0 8
SANYO ELECTRIC CO., LTD. 1 0 2 3 2 8
U.S. PHILIPS CORPORATION 5 3 0 0 0 8
VISTEON GLOBAL TECHNOLOGIES, INC. 1 1 2 1 3 8
ALPINE ELECTRONICS INC. 0 0 2 2 3 7
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 2 2 3 7
KABUSHIKI KAISHA AUDIO-TECHNICA 2 1 1 1 2 7
KNOWLES ELECTRONICS, LLC 1 0 3 3 0 7
MICRO EAR TECHNOLOGY, INC. 0 4 1 1 1 7
MOTOROLA, INC. 1 0 3 2 1 7
PLANTRONICS INC 0 1 1 3 2 7
SAMSUNG ELECTRO-MECHANICS CO., LTD. 0 2 3 1 1 7
SIEMENS VDO AUTOMOTIVE, INC. 0 0 0 1 6 7
TOPHOLM & WESTERMANN APS 1 2 0 3 1 7
GN RESOUND NORTH AMERICA CORPORATION 0 1 3 2 0 6
LUCENT TECHNOLOGIES INC. 0 1 3 2 0 6
OTICON A/S 0 0 2 3 1 6
SARNOFF CORPORATION & CO., LTD. 2 3 0 0 1 6
TAKY ELECTRONICS CO., LTD. 1 3 0 1 1 6
BELTONE ELECTRONICS CORPORATION 1 1 1 2 0 5
BERNAFON AG 1 1 2 0 1 5
CENTRAL RESEARCH LABORATORIES LIMITED 0 2 3 0 0 5
CIRRUS LOGIC, INC. 1 1 1 1 1 5
DAIMLER-CHRYSLER AKTIENGESELLSCHAFT 1 1 0 0 3 5
GN NETCOM A/S 0 2 1 1 1 5
INSOUND MEDICAL, INC. 0 0 1 1 3 5
LAKE TECHNOLOGY LIMITED 0 0 1 4 0 5
LG ELECTRONICS INC. 0 1 2 2 0 5
MEILOON INDUSTRIAL CO., LTD. 0 0 3 1 1 5
ROBERT BOSCH GMBH 0 0 3 2 0 5
SENNHEISER ELECTRONIC GMBH & CO. KG 1 2 0 1 1 5
SONIONMICROTRONIC NEDERLAND B.V. 0 0 1 2 2 5
TEMCO JAPAN CO., LTD. 1 1 0 1 2 5


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Electronic Information Products Division - PTMB
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Alexandria VA 22313-1450

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email: oeip@uspto.gov

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