LUCENT TECHNOLOGIES INC. |
24 |
19 |
48 |
29 |
12 |
132 |
FUJITSU LIMITED |
27 |
33 |
26 |
21 |
20 |
127 |
NEC CORPORATION |
26 |
23 |
24 |
14 |
9 |
96 |
NORTEL NETWORKS LIMITED |
13 |
15 |
17 |
32 |
19 |
96 |
ALCATEL |
20 |
21 |
14 |
24 |
6 |
85 |
~Individually Owned Patent |
7 |
10 |
12 |
9 |
12 |
50 |
CIENA CORPORATION |
10 |
8 |
9 |
4 |
12 |
43 |
HITACHI, LTD |
6 |
6 |
8 |
10 |
4 |
34 |
AT&T CORP. |
1 |
5 |
10 |
9 |
7 |
32 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
1 |
6 |
10 |
9 |
4 |
30 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
4 |
7 |
5 |
4 |
7 |
27 |
SAMSUNG ELECTRONICS CO., LTD. |
6 |
4 |
4 |
5 |
5 |
24 |
SIEMENS AKTIENGESELLSCHAFT |
2 |
3 |
4 |
8 |
7 |
24 |
AGILENT TECHNOLOGIES, INC. |
3 |
4 |
6 |
6 |
4 |
23 |
CORVIS CORPORATION |
3 |
2 |
7 |
5 |
5 |
22 |
UNIVERSITY OF CALIFORNIA, THE REGENTS OF |
0 |
1 |
6 |
9 |
6 |
22 |
SONY CORPORATION |
5 |
3 |
6 |
1 |
3 |
18 |
NIPPON TELEGRAPH & TELEPHONE CORP. |
1 |
2 |
5 |
5 |
3 |
16 |
SCIENTIFIC-ATLANTA, INC. |
1 |
9 |
3 |
3 |
0 |
16 |
BRITISH TELECOMMUNICATION, PLC |
7 |
5 |
1 |
1 |
1 |
15 |
NORTHROP GRUMMAN CORPORATION |
0 |
1 |
5 |
4 |
4 |
14 |
AVANEX CORPORATION |
2 |
3 |
2 |
4 |
2 |
13 |
CORNING INCORPORATED |
1 |
5 |
5 |
2 |
0 |
13 |
OKI ELECTRIC INDUSTRY CO., LTD. |
2 |
1 |
3 |
2 |
5 |
13 |
CHORUM TECHNOLOGIES LP |
3 |
3 |
6 |
0 |
0 |
12 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
2 |
3 |
5 |
2 |
0 |
12 |
TELEFONAKTIEBOLAGET LM ERICSSON |
1 |
2 |
6 |
1 |
2 |
12 |
TYCOM (US) INC. |
4 |
8 |
0 |
0 |
0 |
12 |
INFINEON TECHNOLOGIES AG |
0 |
2 |
2 |
5 |
2 |
11 |
JDS UNIPHASE CORPORATION |
1 |
2 |
0 |
1 |
7 |
11 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
2 |
1 |
0 |
6 |
2 |
11 |
TERABEAM CORPORATION |
0 |
2 |
0 |
4 |
5 |
11 |
TRW INC. |
2 |
6 |
3 |
0 |
0 |
11 |
WORLDCOM, INC. |
0 |
4 |
4 |
3 |
0 |
11 |
CISCO PHOTONICS ITALY, S.R.L. |
1 |
3 |
4 |
1 |
1 |
10 |
CISCO TECHNOLOGY, INC. |
0 |
1 |
4 |
2 |
3 |
10 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
0 |
4 |
3 |
1 |
2 |
10 |
HARRIS CORP. |
5 |
0 |
2 |
1 |
2 |
10 |
MARCONI COMMUNICATIONS LIMITED |
3 |
3 |
3 |
1 |
0 |
10 |
OPNEXT JAPAN, INC. |
0 |
1 |
2 |
2 |
5 |
10 |
CANON KABUSHIKI KAISHA |
3 |
2 |
3 |
0 |
1 |
9 |
CONTRAVES SPACE AG |
3 |
2 |
1 |
1 |
2 |
9 |
SUMITOMO ELECTRIC INDUSTRIES CO., LTD. |
1 |
1 |
2 |
2 |
3 |
9 |
TOSHIBA CORPORATION |
1 |
3 |
1 |
2 |
2 |
9 |
TYCO TELECOMMUNICATIONS (US) INC. |
0 |
1 |
2 |
5 |
1 |
9 |
AGERE SYSTEMS INC. |
1 |
1 |
3 |
1 |
2 |
8 |
KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA |
7 |
1 |
0 |
0 |
0 |
8 |
SYCAMORE NETWORKS, INC. |
0 |
4 |
2 |
1 |
1 |
8 |
AGERE SYSTEMS OPTOELECTRONICS GUARDIAN CORP. |
6 |
1 |
0 |
0 |
0 |
7 |
FINISAR CORPORATION, INC. |
0 |
0 |
0 |
1 |
6 |
7 |
KDD CORPORATION |
0 |
2 |
3 |
2 |
0 |
7 |
KOKUSAI ELECTRIC CO., LTD. |
0 |
4 |
0 |
2 |
1 |
7 |
LIGHTPOINTE COMMUNICATIONS, INC. |
1 |
1 |
0 |
1 |
4 |
7 |
SPRINT COMMUNICATIONS COMPANY L.P. |
0 |
1 |
3 |
1 |
2 |
7 |
STRATALIGHT COMMUNICATIONS, INC. |
0 |
3 |
1 |
2 |
1 |
7 |
UNITED STATES OF AMERICA, NAVY |
0 |
4 |
1 |
2 |
0 |
7 |
BOEING COMPANY |
0 |
2 |
0 |
2 |
2 |
6 |
DORSAL NETWORKS, INC. |
0 |
0 |
1 |
1 |
4 |
6 |
FITEL U.S.A. CORP. |
0 |
2 |
2 |
0 |
2 |
6 |
HUGHES ELECTRONICS CORP. |
2 |
2 |
1 |
1 |
0 |
6 |
JDS FITEL INC. |
2 |
1 |
2 |
1 |
0 |
6 |
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY |
0 |
1 |
3 |
1 |
1 |
6 |
MCI COMMUNICATIONS CORP. |
5 |
1 |
0 |
0 |
0 |
6 |
MOTOROLA, INC. |
0 |
0 |
1 |
2 |
3 |
6 |
NOKIA CORPORATION |
0 |
0 |
0 |
4 |
2 |
6 |
SENECA NETWORKS, INC. |
4 |
2 |
0 |
0 |
0 |
6 |
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) |
1 |
2 |
1 |
0 |
2 |
6 |
ADVANTEST CORP. |
0 |
2 |
0 |
3 |
0 |
5 |
AGERE SYSTEMS GUARDIAN CORP. |
0 |
5 |
0 |
0 |
0 |
5 |
FUJI XEROX CO., LTD. |
2 |
1 |
1 |
1 |
0 |
5 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
0 |
2 |
2 |
1 |
0 |
5 |
LOCKHEED MARTIN CORPORATION |
2 |
2 |
0 |
0 |
1 |
5 |
MARCONI COMMUNICATIONS, INC. |
0 |
1 |
3 |
1 |
0 |
5 |
NOKIA NETWORKS OY |
1 |
4 |
0 |
0 |
0 |
5 |
PIRELLI CAVI E SISTEMI S.P.A. |
3 |
1 |
1 |
0 |
0 |
5 |
QUANTUM BRIDGE COMMUNICATIONS, INC. |
0 |
1 |
2 |
1 |
1 |
5 |
TELCORDIA TECHNOLOGIES, INC. |
4 |
1 |
0 |
0 |
0 |
5 |
TELLABS OPERATIONS INC. |
0 |
1 |
0 |
2 |
2 |
5 |
ZILOG, INC. |
2 |
1 |
1 |
0 |
1 |
5 |