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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 379, Telephonic Communications

( 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 101 71 62 72 56 362
LUCENT TECHNOLOGIES INC. 87 69 74 64 42 336
AT&T CORP. 58 77 56 66 66 323
NORTEL NETWORKS CORPORATION 0 15 51 44 31 141
SAMSUNG ELECTRONICS CO., LTD. 34 53 20 10 16 133
MCI COMMUNICATIONS CORP. 39 33 20 15 20 127
TELEFONAKTIEBOLAGET LM ERICSSON 17 19 22 21 20 99
NEC CORPORATION 26 16 14 18 18 92
FUJITSU LIMITED 21 14 14 25 11 85
SIEMENS INFORMATION AND COMMUNICATIONS NETWORKS, INC. 0 38 16 14 16 84
NORTHERN TELECOM LIMITED 24 39 16 2 0 81
ERICSSON, INC. 21 22 17 11 9 80
AMERITECH CORPORATION 0 12 17 16 32 77
BELL ATLANTIC NETWORK SERVICES, INC. 24 16 15 16 5 76
BRITISH TELECOMMUNICATION, PLC 12 12 13 15 10 62
GENESYS TELECOMMUNICATIONS LABORATORIES, INC. 2 22 14 13 11 62
INTERNATIONAL BUSINESS MACHINES CORPORATION 7 13 9 17 14 60
SIEMENS AKTIENGESELLSCHAFT 8 7 14 10 21 60
AVAYA TECHNOLOGY CORP. 0 0 1 25 27 53
MOTOROLA, INC. 19 12 9 1 12 53
CANON KABUSHIKI KAISHA 18 16 7 4 7 52
ALCATEL USA SOURCING, L.P. 0 9 14 18 10 51
ALCATEL 0 3 15 15 13 46
U.S. PHILIPS CORPORATION 11 20 11 4 0 46
BELLSOUTH INTELLECTUAL PROPERTY MANAGMENT CORPORATION 0 7 9 11 15 42
HARRIS CORP. 10 8 5 11 3 37
SONY CORPORATION 15 10 6 2 3 36
ROCKWELL INTERNATIONAL CORPORATION 14 11 4 4 0 33
3COM CORPORATION 1 5 5 8 13 32
ADVANCED MICRO DEVICES, INC. 9 5 8 6 4 32
NOKIA MOBILE PHONES LTD. 8 7 6 8 3 32
NOKIA TELECOMMUNICATIONS OY 3 9 9 5 5 31
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 5 3 3 8 10 29
BELLSOUTH CORPORATION 15 11 1 1 0 28
SPRINT COMMUNICATIONS COMPANY L.P. 7 5 3 4 9 28
TOSHIBA CORPORATION 8 5 3 5 7 28
MITEL CORPORATION 4 7 6 3 5 25
CONEXANT SYSTEMS, INC. 0 1 6 4 13 24
U.S. WEST INC. 8 9 6 0 1 24
AGERE SYSTEMS GUARDIAN CORP. 0 0 0 7 16 23
INTEL CORPORATION 8 5 3 3 4 23
CISCO TECHNOLOGY, INC. 0 2 6 6 7 21
PARADYNE CORPORATION 7 2 5 5 2 21
BROTHER KOGYO KABUSHIKI KAISHA 5 5 5 3 2 20
MCI WORLDCOM, INC. 0 7 3 3 6 19
SBC TECHNOLOGY RESOURCES, INC. 1 2 5 6 5 19
SIEMENS BUSINESS COMMUNICATION SYSTEMS, INC. 16 3 0 0 0 19
NOKIA NETWORKS OY 0 0 0 6 12 18
RONALD A. KATZ TECHNOLOGY LICENSING L.P. 5 3 4 1 5 18
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) 2 3 3 4 6 18
DAVOX CORPORATION 5 1 4 3 4 17
QUALCOMM, INC. 5 2 3 4 3 17
HEWLETT-PACKARD COMPANY 2 3 2 4 5 16
INTERVOICE LIMITED PARTNERSHIP 7 3 2 2 2 16
QWEST COMMUNICATIONS INTERNATIONAL INC. 0 0 1 8 7 16
HITACHI, LTD 7 2 0 2 4 15
ASPECT TELECOMMUNICATIONS CORPORATION 3 3 6 1 1 14
SILICON LABORATORIES INC. 0 0 4 5 5 14
NCR CORPORATION 3 4 1 3 2 13
NYNEX SCIENCE & TECHNOLOGY, INC. 7 3 3 0 0 13
TELCORDIA TECHNOLOGIES, INC. 0 7 3 3 0 13
TEXAS INSTRUMENTS, INCORPORATED 3 3 2 4 1 13
WORLDCOM, INC. 0 0 0 0 13 13
MITSUBISHI DENKI KABUSHIKI KAISHA 3 2 3 2 2 12
STENTOR RESOURCE CENTRE, INC. 2 6 3 0 1 12
UNISYS CORPORATION 3 1 1 4 3 12
MUREX SECURITIES, LTD. 1 5 2 1 2 11
ROCKWELL SEMICONDUCTOR SYSTEMS, INC. 0 4 4 2 1 11
WALKER DIGITAL, LLC 0 0 1 8 2 11
A G COMMUNICATION SYSTEMS CORPORATION 2 2 3 1 2 10
FRANCE TELECOM 2 4 1 1 2 10
ALCATEL N. V. 6 2 1 0 0 9
DIALOGIC CORPORATION 4 2 0 2 1 9
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE 4 0 2 1 2 9
HELLO DIRECT, INC. 0 4 2 2 1 9
LEGERITY, INC. 0 0 0 5 4 9
MICROSOFT CORPORATION 0 1 0 1 7 9
OKI ELECTRIC INDUSTRY CO., LTD. 0 2 2 3 2 9
SNIP, INC. 2 1 3 1 2 9
TELLABS OPERATIONS INC. 0 0 3 5 1 9
ANTEC CORPORATION 3 2 2 1 0 8
BELL CANADA 1 2 2 1 2 8
BELL COMMUNICATIONS RESEARCH, INC. 6 2 0 0 0 8
DAEWOO TELECOM CO., LTD. 3 4 1 0 0 8
HITACHI TELECOM TECHNOLOGIES, LTD. 1 1 2 1 3 8
INVENTEC CORPORATION 2 2 2 2 0 8
OCTEL COMMUNICATIONS CORP. 2 3 3 0 0 8
ULTRATEC, INC. 1 2 2 2 1 8
WESTELL TECHNOLOGIES, INC. 0 0 3 4 1 8
DATA RACE, INC. 0 3 0 3 1 7
NIPPON TELEGRAPH & TELEPHONE CORP. 1 2 1 2 1 7
SMART TONE AUTHENTICATION, INC. 4 2 1 0 0 7
TEKNEKRON INFOSWITCH CORPORATION 1 5 1 0 0 7
WALKER ASSET MANAGEMENT LIMITED PARTNERSHIP 1 4 2 0 0 7
WINBOND ELECTRONICS CORP. 0 2 2 2 1 7
ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE 1 4 1 0 0 6
APROPOS TECHNOLOGY 0 3 0 1 2 6
CASIO PHONEMATE, INC. 4 2 0 0 0 6
COMPAQ COMPUTER CORPORATION, INC. 3 1 0 1 1 6
HOLTEK MICROELECTRONICS INC. 4 2 0 0 0 6
RICOH COMPANY, LTD. 0 0 4 0 2 6
SUMMIT TELECOM SYSTEMS, INC. 0 3 1 1 1 6
TELTREND, INC. 0 5 1 0 0 6
TERADYNE, INC. 0 2 1 0 3 6
THOMSON LICENSING S.A. 0 0 1 2 3 6
VERIZON SERVICES CORP. 0 0 0 0 6 6
ADTRAN 2 1 0 2 0 5
ASPECT COMMUNICATIONS CORP. 0 0 1 1 3 5
AST RESEARCH, INC. 2 2 1 0 0 5
CALLMANAGE LTD. 2 2 1 0 0 5
CARRIER ACCESS CORPORATION 1 3 1 0 0 5
CIDCO INCORPORATED 3 1 1 0 0 5
CIRRUS LOGIC, INC. 2 2 0 0 1 5
CONVERGYS CMG UTAH INC. 0 0 0 3 2 5
CYBIOTRONICS LIMITED 0 1 3 1 0 5
DISTRIBUTED SOFTWARE DEVELOPMENT, INC. 0 2 0 1 2 5
KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA 0 3 1 0 1 5
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. 0 0 0 1 4 5
MEDIAONE GROUP, INC. 0 1 2 0 2 5
PROTEL, INC. 3 1 0 1 0 5
QUADRUM TELECOMMUNICATIONS INC. 1 1 2 1 0 5
ROCKWELL ELECTRONIC COMMERCE CORP. 0 0 0 2 3 5
SER SOLUTIONS, INC. 0 0 0 5 0 5
SUN MICROSYSTEMS, INC. 0 1 0 2 2 5
VERIZON LABORATORIES INC. 0 0 0 1 4 5


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