Assignee

SYNTELLECT INC

US·4 granted patents·101 citations·filing 1989–1991

Technology mixH04K4

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4 records

0173US5181243ASystem and method for communications security protectionSYNTELLECT INC·Filed 1989·Granted Jan 19, 1993·32 cites·32 claims
0264US5168519ASystem and method for securing DTMF transmissionSYNTELLECT INC·Filed 1991·Granted Dec 1, 1992·31 cites·20 claims
0360US4972469ASystem and method for communications security protectionSYNTELLECT INC·Filed 1990·Granted Nov 20, 1990·27 cites·16 claims
0442US5148478ASystem and method for communications security protectionSYNTELLECT INC·Filed 1990·Granted Sep 15, 1992·11 cites·84 claims

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