~Individually Owned Patent |
62 |
72 |
56 |
73 |
72 |
335 |
AT&T CORP. |
56 |
66 |
66 |
29 |
43 |
260 |
LUCENT TECHNOLOGIES INC. |
74 |
64 |
42 |
39 |
40 |
259 |
NORTEL NETWORKS LIMITED |
51 |
44 |
31 |
41 |
43 |
210 |
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION |
9 |
11 |
15 |
33 |
75 |
143 |
AVAYA TECHNOLOGY CORP. |
1 |
25 |
27 |
30 |
33 |
116 |
TELEFONAKTIEBOLAGET LM ERICSSON |
22 |
21 |
20 |
23 |
25 |
111 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
9 |
17 |
14 |
22 |
40 |
102 |
ALCATEL |
15 |
15 |
13 |
22 |
24 |
89 |
SIEMENS AKTIENGESELLSCHAFT |
14 |
10 |
21 |
19 |
24 |
88 |
NEC CORPORATION |
14 |
18 |
18 |
16 |
21 |
87 |
AMERITECH CORPORATION |
17 |
16 |
32 |
20 |
0 |
85 |
FUJITSU LIMITED |
14 |
25 |
11 |
14 |
19 |
83 |
SIEMENS INFORMATION AND COMMUNICATIONS NETWORKS, INC. |
16 |
14 |
16 |
12 |
25 |
83 |
SAMSUNG ELECTRONICS CO., LTD. |
20 |
10 |
16 |
10 |
10 |
66 |
MCI COMMUNICATIONS CORP. |
20 |
15 |
20 |
4 |
4 |
63 |
CISCO TECHNOLOGY, INC. |
6 |
6 |
7 |
16 |
27 |
62 |
3COM CORPORATION |
5 |
8 |
13 |
12 |
18 |
56 |
BRITISH TELECOMMUNICATION, PLC |
13 |
15 |
10 |
9 |
6 |
53 |
ALCATEL USA SOURCING, L.P. |
14 |
18 |
10 |
6 |
0 |
48 |
ERICSSON, INC. |
17 |
11 |
9 |
7 |
4 |
48 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
3 |
8 |
10 |
12 |
15 |
48 |
SPRINT COMMUNICATIONS COMPANY L.P. |
3 |
4 |
9 |
11 |
21 |
48 |
GENESYS TELECOMMUNICATIONS LABORATORIES, INC. |
14 |
13 |
11 |
4 |
5 |
47 |
AGERE SYSTEMS INC. |
0 |
0 |
2 |
21 |
23 |
46 |
SBC TECHNOLOGY RESOURCES, INC. |
5 |
6 |
5 |
9 |
21 |
46 |
CONEXANT SYSTEMS, INC. |
6 |
4 |
13 |
9 |
13 |
45 |
SBC PROPERTIES, L.P. |
0 |
0 |
0 |
10 |
31 |
41 |
MOTOROLA, INC. |
9 |
1 |
12 |
8 |
10 |
40 |
WORLDCOM, INC. |
0 |
0 |
14 |
17 |
9 |
40 |
BELL ATLANTIC NETWORK SERVICES, INC. |
15 |
16 |
5 |
0 |
2 |
38 |
QWEST COMMUNICATIONS INTERNATIONAL INC. |
1 |
8 |
7 |
10 |
11 |
37 |
NOKIA CORPORATION |
0 |
0 |
1 |
14 |
20 |
35 |
NOKIA MOBILE PHONES LTD. |
6 |
8 |
3 |
9 |
8 |
34 |
INTEL CORPORATION |
3 |
3 |
4 |
10 |
12 |
32 |
MITEL CORPORATION |
6 |
3 |
5 |
8 |
7 |
29 |
CANON KABUSHIKI KAISHA |
7 |
4 |
7 |
4 |
6 |
28 |
VERIZON SERVICES CORP. |
0 |
0 |
6 |
4 |
17 |
27 |
TOSHIBA CORPORATION |
3 |
5 |
7 |
4 |
7 |
26 |
NOKIA NETWORKS OY |
0 |
6 |
12 |
3 |
4 |
25 |
AGERE SYSTEMS GUARDIAN CORP. |
0 |
7 |
16 |
1 |
0 |
24 |
PARADYNE CORPORATION |
5 |
5 |
2 |
5 |
7 |
24 |
LEGERITY, INC. |
0 |
5 |
4 |
7 |
7 |
23 |
ADVANCED MICRO DEVICES, INC. |
8 |
6 |
4 |
1 |
3 |
22 |
HARRIS CORP. |
5 |
11 |
3 |
1 |
2 |
22 |
SILICON LABORATORIES INC. |
4 |
5 |
5 |
4 |
4 |
22 |
NOKIA TELECOMMUNICATIONS OY |
9 |
5 |
5 |
2 |
0 |
21 |
SONY CORPORATION |
6 |
2 |
3 |
6 |
2 |
19 |
NORTHERN TELECOM LIMITED |
16 |
2 |
0 |
0 |
0 |
18 |
OKI ELECTRIC INDUSTRY CO., LTD. |
2 |
3 |
2 |
4 |
7 |
18 |
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) |
3 |
4 |
6 |
3 |
0 |
16 |
TELLABS OPERATIONS INC. |
3 |
5 |
1 |
6 |
1 |
16 |
MICROSOFT CORPORATION |
0 |
1 |
7 |
3 |
4 |
15 |
U.S. PHILIPS CORPORATION |
11 |
4 |
0 |
0 |
0 |
15 |
UNISYS CORPORATION |
1 |
4 |
3 |
4 |
3 |
15 |
WALKER DIGITAL, LLC |
1 |
8 |
2 |
2 |
2 |
15 |
ADTRAN |
0 |
2 |
0 |
8 |
4 |
14 |
HEWLETT-PACKARD COMPANY |
2 |
4 |
5 |
3 |
0 |
14 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
0 |
0 |
2 |
5 |
7 |
14 |
MCI WORLDCOM, INC. |
3 |
3 |
6 |
2 |
0 |
14 |
QUALCOMM, INC. |
3 |
4 |
3 |
1 |
3 |
14 |
HITACHI, LTD |
0 |
2 |
4 |
4 |
3 |
13 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
3 |
2 |
2 |
3 |
3 |
13 |
RONALD A. KATZ TECHNOLOGY LICENSING L.P. |
4 |
1 |
5 |
2 |
1 |
13 |
MICROSTRATEGY, INC. |
0 |
1 |
1 |
2 |
8 |
12 |
ROCKWELL ELECTRONIC COMMERCE CORP. |
0 |
2 |
3 |
5 |
2 |
12 |
TELTRONICS, INC. |
0 |
1 |
0 |
9 |
2 |
12 |
TEXAS INSTRUMENTS, INCORPORATED |
2 |
4 |
1 |
2 |
3 |
12 |
VERIZON LABORATORIES INC. |
0 |
1 |
4 |
3 |
4 |
12 |
BROTHER KOGYO KABUSHIKI KAISHA |
5 |
3 |
2 |
1 |
0 |
11 |
CONCERTO SOFTWARE, INC. |
0 |
0 |
1 |
2 |
8 |
11 |
DAVOX CORPORATION |
4 |
3 |
4 |
0 |
0 |
11 |
DEUTSCHE TELEKOM AG |
0 |
1 |
2 |
7 |
1 |
11 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
0 |
0 |
0 |
3 |
8 |
11 |
THOMSON LICENSING S.A. |
1 |
2 |
3 |
4 |
1 |
11 |
ADC TELECOMMUNICATIONS, INC. |
0 |
0 |
1 |
0 |
9 |
10 |
ASPECT COMMUNICATIONS CORP. |
1 |
1 |
3 |
1 |
4 |
10 |
ATT WIRELESS SERVICES INC |
0 |
1 |
3 |
4 |
2 |
10 |
HITACHI TELECOM TECHNOLOGIES, LTD. |
2 |
1 |
3 |
1 |
3 |
10 |
MITEL KNOWLEDGE CORPORATION |
0 |
0 |
3 |
1 |
6 |
10 |
TELCORDIA TECHNOLOGIES, INC. |
3 |
3 |
0 |
1 |
3 |
10 |
TURNSTONE SYSTEMS, INC. |
0 |
1 |
3 |
5 |
1 |
10 |
ULTRATEC, INC. |
2 |
2 |
1 |
5 |
0 |
10 |
INFINEON TECHNOLOGIES AG |
0 |
0 |
0 |
5 |
4 |
9 |
INTERVOICE LIMITED PARTNERSHIP |
2 |
2 |
2 |
1 |
2 |
9 |
LG ELECTRONICS INC. |
1 |
0 |
0 |
3 |
5 |
9 |
MCI, INC. |
0 |
0 |
0 |
0 |
9 |
9 |
ROCKWELL INTERNATIONAL CORPORATION |
4 |
4 |
0 |
1 |
0 |
9 |
SECURELOGIX CORPORATION |
0 |
3 |
0 |
0 |
6 |
9 |
T-NETIX, INC. |
1 |
0 |
1 |
6 |
1 |
9 |
WESTELL TECHNOLOGIES, INC. |
3 |
4 |
1 |
0 |
1 |
9 |
WINBOND ELECTRONICS CORP. |
2 |
2 |
1 |
3 |
1 |
9 |
A G COMMUNICATION SYSTEMS CORPORATION |
3 |
1 |
2 |
0 |
2 |
8 |
ASPECT TELECOMMUNICATIONS CORPORATION |
6 |
1 |
1 |
0 |
0 |
8 |
BELL CANADA |
2 |
1 |
2 |
1 |
2 |
8 |
MUREX SECURITIES, LTD. |
2 |
1 |
2 |
3 |
0 |
8 |
NEC AMERICA, INC. |
0 |
0 |
4 |
3 |
1 |
8 |
SANYO ELECTRIC CO., LTD. |
0 |
1 |
2 |
3 |
2 |
8 |
SNIP, INC. |
3 |
1 |
2 |
2 |
0 |
8 |
TERADYNE, INC. |
1 |
0 |
3 |
1 |
3 |
8 |
CONVERGYS CMG UTAH INC. |
0 |
3 |
2 |
1 |
1 |
7 |
FRANCE TELECOM |
1 |
1 |
2 |
1 |
2 |
7 |
GENERAL ELECTRIC COMPANY |
0 |
0 |
2 |
1 |
4 |
7 |
INTERSIL CORPORATION, INC. |
1 |
1 |
1 |
2 |
2 |
7 |
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. |
0 |
1 |
4 |
2 |
0 |
7 |
RICOH COMPANY, LTD. |
4 |
0 |
2 |
0 |
1 |
7 |
ROCKWELL SEMICONDUCTOR SYSTEMS, INC. |
4 |
2 |
1 |
0 |
0 |
7 |
TEKELEC |
1 |
1 |
0 |
3 |
2 |
7 |
U.S. WEST INC. |
6 |
0 |
1 |
0 |
0 |
7 |
AMERICA ONLINE, INC. |
0 |
0 |
0 |
4 |
2 |
6 |
CENTILLIUM COMMUNICATIONS, INC. |
0 |
1 |
0 |
1 |
4 |
6 |
COMVERSE, LTD. |
0 |
0 |
0 |
1 |
5 |
6 |
ECI TELECOM LTD. |
0 |
0 |
1 |
2 |
3 |
6 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
2 |
1 |
2 |
0 |
1 |
6 |
HELLO DIRECT, INC. |
2 |
2 |
1 |
0 |
1 |
6 |
INET TECHNOLOGIES, INC. |
1 |
1 |
2 |
2 |
0 |
6 |
KONINKLIJKE KPN N.V. |
0 |
0 |
2 |
3 |
1 |
6 |
LG INFORMATION & COMMUNICATIONS, LTD. |
2 |
0 |
0 |
2 |
2 |
6 |
METRO ONE TELECOMMUNICATIONS, INC. |
0 |
0 |
2 |
1 |
3 |
6 |
NCR CORPORATION |
1 |
3 |
2 |
0 |
0 |
6 |
NEC INFRONTIA CORPORATION |
0 |
0 |
2 |
2 |
2 |
6 |
SPRINT SPECTRUM L.P. |
0 |
0 |
0 |
3 |
3 |
6 |
TOLLGRADE COMMUNICATIONS, INC. |
0 |
2 |
1 |
3 |
0 |
6 |
VERIZON CORPORATE SERVICES GROUP INC. |
0 |
0 |
1 |
2 |
3 |
6 |
ZARLINK SEMICONDUCTOR INC. |
0 |
0 |
0 |
4 |
2 |
6 |
BROADCOM CORPORATION |
0 |
0 |
1 |
0 |
4 |
5 |
CHARLES INDUSTRIES, LTD. |
0 |
0 |
3 |
1 |
1 |
5 |
COMVERSE, INC. |
0 |
0 |
0 |
1 |
4 |
5 |
CONVERGYS CUSTOMER MANAGEMENT GROUP INC. |
1 |
0 |
0 |
2 |
2 |
5 |
CYBIOTRONICS LIMITED |
3 |
1 |
0 |
0 |
1 |
5 |
DENSO CORPORATION |
1 |
0 |
3 |
1 |
0 |
5 |
INLINE CONNECTION CORPORATION |
0 |
4 |
0 |
1 |
0 |
5 |
PITNEY-BOWES, INC. |
0 |
0 |
2 |
1 |
2 |
5 |
PLANTRONICS INC |
0 |
0 |
0 |
1 |
4 |
5 |
SER SOLUTIONS, INC. |
0 |
5 |
0 |
0 |
0 |
5 |
SUN MICROSYSTEMS, INC. |
0 |
2 |
2 |
0 |
1 |
5 |