~Individually Owned Patent |
72 |
56 |
73 |
72 |
59 |
332 |
AT&T CORP. |
66 |
66 |
29 |
43 |
23 |
227 |
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION |
11 |
15 |
33 |
75 |
71 |
205 |
LUCENT TECHNOLOGIES INC. |
64 |
42 |
39 |
40 |
17 |
202 |
NORTEL NETWORKS LIMITED |
44 |
31 |
41 |
43 |
23 |
182 |
AVAYA TECHNOLOGY CORP. |
25 |
27 |
30 |
33 |
16 |
131 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
17 |
14 |
22 |
40 |
30 |
123 |
TELEFONAKTIEBOLAGET LM ERICSSON |
21 |
20 |
23 |
25 |
9 |
98 |
SIEMENS AKTIENGESELLSCHAFT |
10 |
21 |
19 |
24 |
23 |
97 |
ALCATEL |
15 |
13 |
22 |
25 |
17 |
92 |
CISCO TECHNOLOGY, INC. |
6 |
7 |
16 |
27 |
30 |
86 |
NEC CORPORATION |
18 |
18 |
16 |
21 |
12 |
85 |
FUJITSU LIMITED |
25 |
11 |
14 |
19 |
10 |
79 |
SBC PROPERTIES, L.P. |
0 |
0 |
10 |
31 |
30 |
71 |
AMERITECH CORPORATION |
16 |
32 |
20 |
0 |
1 |
69 |
SIEMENS INFORMATION AND COMMUNICATIONS NETWORKS, INC. |
14 |
16 |
12 |
25 |
2 |
69 |
SAMSUNG ELECTRONICS CO., LTD. |
10 |
16 |
10 |
10 |
14 |
60 |
SPRINT COMMUNICATIONS COMPANY L.P. |
4 |
9 |
11 |
21 |
12 |
57 |
3COM CORPORATION |
8 |
13 |
12 |
18 |
5 |
56 |
AGERE SYSTEMS INC. |
0 |
2 |
21 |
23 |
10 |
56 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
8 |
10 |
12 |
15 |
10 |
55 |
INTEL CORPORATION |
3 |
4 |
10 |
12 |
20 |
49 |
SBC TECHNOLOGY RESOURCES, INC. |
6 |
5 |
9 |
21 |
7 |
48 |
BRITISH TELECOMMUNICATION, PLC |
15 |
10 |
9 |
6 |
6 |
46 |
NOKIA CORPORATION |
0 |
1 |
14 |
20 |
11 |
46 |
MCI COMMUNICATIONS CORP. |
15 |
20 |
4 |
4 |
2 |
45 |
CONEXANT SYSTEMS, INC. |
4 |
13 |
9 |
13 |
2 |
41 |
QWEST COMMUNICATIONS INTERNATIONAL INC. |
8 |
7 |
10 |
11 |
4 |
40 |
WORLDCOM, INC. |
0 |
14 |
17 |
9 |
0 |
40 |
MOTOROLA, INC. |
1 |
12 |
8 |
10 |
5 |
36 |
ALCATEL USA SOURCING, L.P. |
18 |
10 |
6 |
0 |
1 |
35 |
VERIZON SERVICES CORP. |
0 |
6 |
4 |
17 |
7 |
34 |
GENESYS TELECOMMUNICATIONS LABORATORIES, INC. |
13 |
11 |
4 |
5 |
0 |
33 |
ERICSSON, INC. |
11 |
9 |
7 |
4 |
0 |
31 |
LEGERITY, INC. |
5 |
4 |
7 |
7 |
7 |
30 |
NOKIA MOBILE PHONES LTD. |
8 |
3 |
9 |
8 |
2 |
30 |
NOKIA NETWORKS OY |
6 |
12 |
3 |
4 |
5 |
30 |
SILICON LABORATORIES INC. |
5 |
5 |
4 |
4 |
9 |
27 |
TOSHIBA CORPORATION |
5 |
7 |
4 |
7 |
3 |
26 |
CANON KABUSHIKI KAISHA |
4 |
7 |
4 |
6 |
4 |
25 |
AGERE SYSTEMS GUARDIAN CORP. |
7 |
16 |
1 |
0 |
0 |
24 |
OKI ELECTRIC INDUSTRY CO., LTD. |
3 |
2 |
4 |
7 |
8 |
24 |
BELL ATLANTIC NETWORK SERVICES, INC. |
16 |
5 |
0 |
2 |
0 |
23 |
MITEL CORPORATION |
3 |
5 |
8 |
7 |
0 |
23 |
INFINEON TECHNOLOGIES AG |
0 |
0 |
5 |
4 |
13 |
22 |
MICROSOFT CORPORATION |
1 |
7 |
3 |
4 |
6 |
21 |
PARADYNE CORPORATION |
5 |
2 |
5 |
7 |
2 |
21 |
MCI, INC. |
0 |
0 |
0 |
9 |
10 |
19 |
MICROSTRATEGY, INC. |
1 |
1 |
2 |
8 |
7 |
19 |
TEXAS INSTRUMENTS, INCORPORATED |
4 |
1 |
2 |
3 |
9 |
19 |
ADTRAN |
2 |
0 |
8 |
4 |
4 |
18 |
LG ELECTRONICS INC. |
0 |
0 |
3 |
5 |
10 |
18 |
HARRIS CORP. |
11 |
3 |
1 |
2 |
0 |
17 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
0 |
0 |
3 |
8 |
6 |
17 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
0 |
2 |
5 |
7 |
2 |
16 |
SONY CORPORATION |
2 |
3 |
6 |
2 |
3 |
16 |
ADVANCED MICRO DEVICES, INC. |
6 |
4 |
1 |
3 |
1 |
15 |
HITACHI, LTD |
2 |
4 |
4 |
3 |
2 |
15 |
VERIZON CORPORATE SERVICES GROUP INC. |
0 |
1 |
2 |
3 |
9 |
15 |
VERIZON LABORATORIES INC. |
1 |
4 |
3 |
4 |
3 |
15 |
ROCKWELL ELECTRONIC COMMERCE CORP. |
2 |
3 |
5 |
2 |
2 |
14 |
ROCKWELL ELECTRONIC COMMERCE TECHNOLOGIES LLC |
0 |
0 |
2 |
2 |
10 |
14 |
SHARP KABUSHIKI KAISHA (SHARP CORPORATION) |
4 |
6 |
3 |
0 |
1 |
14 |
TELLABS OPERATIONS INC. |
5 |
1 |
6 |
1 |
1 |
14 |
THOMSON LICENSING S.A. |
2 |
3 |
4 |
1 |
4 |
14 |
UNISYS CORPORATION |
4 |
3 |
4 |
3 |
0 |
14 |
WALKER DIGITAL, LLC |
8 |
2 |
2 |
2 |
0 |
14 |
METRO ONE TELECOMMUNICATIONS, INC. |
0 |
2 |
1 |
3 |
7 |
13 |
HEWLETT-PACKARD COMPANY |
4 |
5 |
3 |
0 |
0 |
12 |
NOKIA TELECOMMUNICATIONS OY |
5 |
5 |
2 |
0 |
0 |
12 |
TEKELEC |
1 |
0 |
3 |
2 |
6 |
12 |
TELTRONICS, INC. |
1 |
0 |
9 |
2 |
0 |
12 |
ADC TELECOMMUNICATIONS, INC. |
0 |
1 |
0 |
9 |
1 |
11 |
ASPECT COMMUNICATIONS CORP. |
1 |
3 |
1 |
4 |
2 |
11 |
CONCERTO SOFTWARE, INC. |
0 |
1 |
2 |
8 |
0 |
11 |
DEUTSCHE TELEKOM AG |
1 |
2 |
7 |
1 |
0 |
11 |
MCI WORLDCOM, INC. |
3 |
6 |
2 |
0 |
0 |
11 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
2 |
2 |
3 |
3 |
1 |
11 |
QUALCOMM, INC. |
4 |
3 |
1 |
3 |
0 |
11 |
SPRINT SPECTRUM L.P. |
0 |
0 |
3 |
3 |
5 |
11 |
ATT WIRELESS SERVICES INC |
1 |
3 |
4 |
2 |
0 |
10 |
BROADCOM CORPORATION |
0 |
1 |
0 |
4 |
5 |
10 |
INTERVOICE LIMITED PARTNERSHIP |
2 |
2 |
1 |
2 |
3 |
10 |
MITEL KNOWLEDGE CORPORATION |
0 |
3 |
1 |
6 |
0 |
10 |
SECURELOGIX CORPORATION |
3 |
0 |
0 |
6 |
1 |
10 |
T-NETIX, INC. |
0 |
1 |
6 |
1 |
2 |
10 |
TELCORDIA TECHNOLOGIES, INC. |
3 |
0 |
1 |
3 |
3 |
10 |
TERADYNE, INC. |
0 |
3 |
1 |
3 |
3 |
10 |
TURNSTONE SYSTEMS, INC. |
1 |
3 |
5 |
1 |
0 |
10 |
ULTRATEC, INC. |
2 |
1 |
5 |
0 |
2 |
10 |
HITACHI TELECOM TECHNOLOGIES, LTD. |
1 |
3 |
2 |
3 |
0 |
9 |
RONALD A. KATZ TECHNOLOGY LICENSING L.P. |
1 |
5 |
2 |
1 |
0 |
9 |
SANYO ELECTRIC CO., LTD. |
1 |
2 |
3 |
2 |
1 |
9 |
BELL CANADA |
1 |
2 |
1 |
2 |
2 |
8 |
CENTILLIUM COMMUNICATIONS, INC. |
1 |
0 |
1 |
4 |
2 |
8 |
CONVERGYS CMG UTAH INC. |
3 |
2 |
1 |
1 |
1 |
8 |
INTERSIL CORPORATION, INC. |
1 |
1 |
2 |
2 |
2 |
8 |
KONINKLIJKE KPN N.V. |
0 |
2 |
3 |
1 |
2 |
8 |
NEC AMERICA, INC. |
0 |
4 |
3 |
1 |
0 |
8 |
SIEMENS COMMUNICATIONS, INC. |
0 |
0 |
0 |
0 |
8 |
8 |
AMERICA ONLINE, INC. |
0 |
0 |
4 |
2 |
1 |
7 |
BROTHER KOGYO KABUSHIKI KAISHA |
3 |
2 |
1 |
0 |
1 |
7 |
COMVERSE, LTD. |
0 |
0 |
1 |
5 |
1 |
7 |
DAVOX CORPORATION |
3 |
4 |
0 |
0 |
0 |
7 |
FRANCE TELECOM |
1 |
2 |
1 |
2 |
1 |
7 |
GENERAL ELECTRIC COMPANY |
0 |
2 |
1 |
4 |
0 |
7 |
MATSUSHITA GRAPHIC COMMUNICATION SYSTEMS, INC. |
1 |
4 |
2 |
0 |
0 |
7 |
NEC INFRONTIA CORPORATION |
0 |
2 |
2 |
2 |
1 |
7 |
WINBOND ELECTRONICS CORP. |
2 |
1 |
3 |
1 |
0 |
7 |
ZARLINK SEMICONDUCTOR INC. |
0 |
0 |
4 |
2 |
1 |
7 |
CONVERGYS CUSTOMER MANAGEMENT GROUP INC. |
0 |
0 |
2 |
2 |
2 |
6 |
DICTAPHONE CORPORATION |
0 |
0 |
0 |
4 |
2 |
6 |
ECI TELECOM LTD. |
0 |
1 |
2 |
3 |
0 |
6 |
INLINE CONNECTION CORPORATION |
4 |
0 |
1 |
0 |
1 |
6 |
INTERACTIVE INTELLIGENCE, INC. |
0 |
1 |
1 |
2 |
2 |
6 |
MUREX SECURITIES, LTD. |
1 |
2 |
3 |
0 |
0 |
6 |
NMS COMMUNICATIONS CORPORATION |
0 |
1 |
0 |
3 |
2 |
6 |
SNIP, INC. |
1 |
2 |
2 |
0 |
1 |
6 |
SUN MICROSYSTEMS, INC. |
2 |
2 |
0 |
1 |
1 |
6 |
TOLLGRADE COMMUNICATIONS, INC. |
2 |
1 |
3 |
0 |
0 |
6 |
WESTELL TECHNOLOGIES, INC. |
4 |
1 |
0 |
1 |
0 |
6 |
2WIRE, INC. |
1 |
0 |
0 |
3 |
1 |
5 |
A G COMMUNICATION SYSTEMS CORPORATION |
1 |
2 |
0 |
2 |
0 |
5 |
ACOUSTIC TECHNOLOGIES, INC. |
0 |
1 |
1 |
2 |
1 |
5 |
ADC DSL SYSTEMS, INC. |
0 |
0 |
1 |
1 |
3 |
5 |
ALTIGEN COMMUNICATIONS, INC. |
1 |
1 |
0 |
2 |
1 |
5 |
AMERITECH SERVICES, INC. |
2 |
1 |
0 |
1 |
1 |
5 |
CHARLES INDUSTRIES, LTD. |
0 |
3 |
1 |
1 |
0 |
5 |
CISCO SYSTEMS, INC. |
0 |
2 |
2 |
0 |
1 |
5 |
COMVERSE, INC. |
0 |
0 |
1 |
4 |
0 |
5 |
CORNING CABLE SYSTEMS LLC |
0 |
1 |
1 |
1 |
2 |
5 |
DENSO CORPORATION |
0 |
3 |
1 |
0 |
1 |
5 |
INET TECHNOLOGIES, INC. |
1 |
2 |
2 |
0 |
0 |
5 |
MINDSPEED TECHNOLOGIES, INC. |
0 |
0 |
0 |
4 |
1 |
5 |
NATIONAL SEMICONDUCTOR CORPORATION |
0 |
1 |
0 |
1 |
3 |
5 |
NCR CORPORATION |
3 |
2 |
0 |
0 |
0 |
5 |
PITNEY-BOWES, INC. |
0 |
2 |
1 |
2 |
0 |
5 |
PLANTRONICS INC |
0 |
0 |
1 |
4 |
0 |
5 |
RICOH COMPANY, LTD. |
0 |
2 |
0 |
1 |
2 |
5 |
ROCKWELL INTERNATIONAL CORPORATION |
4 |
0 |
1 |
0 |
0 |
5 |
SER SOLUTIONS, INC. |
5 |
0 |
0 |
0 |
0 |
5 |
STMICROELECTRONICS S.A. |
0 |
2 |
0 |
1 |
2 |
5 |
STMICROELECTRONICS S.R.L. |
0 |
0 |
1 |
2 |
2 |
5 |
WEST CORPORATION |
0 |
0 |
0 |
2 |
3 |
5 |