Inventor · disambiguated record

Marcus K. Davenport

Also filed as: DAVENPORT MARCUS K

3 granted patents·45 citations·filing 1991–1993

67Inventor score

Technology areasH04M

Files withINT TELESERVICE CORP3

Top patents by PatentIndex Score

3 records

0158US5311582AIntegrated cocot and regulated paystation telephone systemINT TELESERVICE CORP·Filed 1993·Granted May 10, 1994·36 cites·28 claims
0235US5216707ACircuit for firing paystation coin relay using power derived from telephone line tip/ring voltageINT TELESERVICE CORP·Filed 1991·Granted Jun 1, 1993·9 cites·10 claims
0325US5187739AAnswer supervision circuit for paystation telephone with non-muted microphoneINT TELESERVICE CORP·Filed 1991·Granted Feb 16, 1993·0 cites·11 claims

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