Assignee
IPC INFORMATION SYSTEMS INC
US·10 granted patents·569 citations·filing 1991–1997
Top patents by PatentIndex Score
10 records- 0190US5535197AShared buffer switching moduleIPC INFORMATION SYSTEMS INC·Filed 1994·Granted Jul 9, 1996·148 cites·55 claims
- 0284US5870441ADistributed clocking systemIPC INFORMATION SYSTEMS INC·Filed 1997·Granted Feb 9, 1999·61 cites·18 claims
- 0383US5577075ADistributed clocking systemIPC INFORMATION SYSTEMS INC·Filed 1991·Granted Nov 19, 1996·62 cites·34 claims
- 0479US5623489AChannel allocation system for distributed digital switching networkIPC INFORMATION SYSTEMS INC·Filed 1995·Granted Apr 22, 1997·127 cites·34 claims
- 0579US5255264ADistributed control switching network for multi-line telephone communicationsIPC INFORMATION SYSTEMS INC·Filed 1991·Granted Oct 19, 1993·82 cites·37 claims
- 0666US5237571ABroadcast system for distributed switching networkIPC INFORMATION SYSTEMS INC·Filed 1991·Granted Aug 17, 1993·38 cites·35 claims
- 0746US5379280AConferencing system for distributed switching networkIPC INFORMATION SYSTEMS INC·Filed 1991·Granted Jan 3, 1995·21 cites·47 claims
- 0842US6212177B1Remotely accessible key telephone systemIPC INFORMATION SYSTEMS INC·Filed 1996·Granted Apr 3, 2001·18 cites·11 claims
- 0940USRE36354EKey telephone system with virtual private linesIPC INFORMATION SYSTEMS INC·Filed 1994·Granted Oct 26, 1999·8 cites·10 claims
- 1033US5214691AKey telephone system with virtual private linesIPC INFORMATION SYSTEMS INC·Filed 1991·Granted May 25, 1993·4 cites·8 claims
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