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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 726, Information Security

( 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
INTERNATIONAL BUSINESS MACHINES CORPORATION 20 17 17 34 27 115
~Individually Owned Patent 15 11 11 12 7 56
SUN MICROSYSTEMS, INC. 12 3 11 9 6 41
NETWORK ASSOCIATES, INC. 1 2 5 22 7 37
MICROSOFT CORPORATION 11 6 3 4 9 33
CISCO TECHNOLOGY, INC. 4 6 3 7 3 23
INTEL CORPORATION 8 4 3 5 1 21
FUJITSU LIMITED 3 4 2 7 3 19
3COM CORPORATION 6 3 1 2 0 12
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. 0 0 3 3 6 12
HITACHI, LTD 5 3 1 1 2 12
Z4 TECHNOLOGIES, INC. 0 4 0 7 1 12
SONY CORPORATION 3 0 4 4 0 11
NORTEL NETWORKS LIMITED 2 1 3 1 2 9
LUCENT TECHNOLOGIES INC. 3 0 2 1 2 8
SAMSUNG ELECTRONICS CO., LTD. 0 0 5 3 0 8
SECURE COMPUTING CORPORATION 4 2 2 0 0 8
AT&T CORP. 5 0 0 2 0 7
CANON KABUSHIKI KAISHA 1 1 1 3 1 7
ENTRUST TECHNOLOGIES LTD. 2 1 1 3 0 7
SYMANTEC CORPORATION 0 1 1 2 3 7
COMPAQ COMPUTER CORPORATION, INC. 4 2 0 0 0 6
COMPAQ INFORMATION TECHNOLOGIES GROUP, L.P. 1 3 2 0 0 6
DELL PRODUCTS, L.P. 1 1 2 1 1 6
HEWLETT-PACKARD COMPANY 3 3 0 0 0 6
NEC CORPORATION 1 3 0 1 1 6
NCR CORPORATION 3 0 1 1 0 5
NOVELL, INC. 1 2 0 2 0 5
TELEFONAKTIEBOLAGET LM ERICSSON 1 0 1 1 2 5


PTMB Contacts

Questions regarding these reports should be directed to:

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

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

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


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