Assignee
INTELLICALL INC
23 granted patents·1,003 citations·filing 1989–2005
Top patents by PatentIndex Score
23 records- 0193US4933966AMethod and apparatus for performing an automated collect callINTELLICALL INC·Filed 1989·Granted Jun 12, 1990·119 cites·54 claims
- 0287US5483581AMethod and apparatus for performing an automated collect callINTELLICALL INC·Filed 1994·Granted Jan 9, 1996·99 cites·4 claims
- 0387US4933965AShort time validity storage of a billing account number at a local telecommunications stationINTELLICALL INC·Filed 1989·Granted Jun 12, 1990·82 cites·22 claims
- 0486US4920562AAutomatic generation of billing records at a telephone paystationINTELLICALL INC·Filed 1989·Granted Apr 24, 1990·80 cites·35 claims
- 0584US4890317AAutomatic validation of telephone account numbersINTELLICALL INC·Filed 1989·Granted Dec 26, 1989·69 cites·31 claims
- 0677US4908852AMethod and apparatus for altering the access format of telephone callsINTELLICALL INC·Filed 1989·Granted Mar 13, 1990·45 cites·35 claims
- 0776US5048079ASMDR translatorINTELLICALL INC·Filed 1990·Granted Sep 10, 1991·79 cites·18 claims
- 0875US5513738ACoin handling systemINTELLICALL INC·Filed 1993·Granted May 7, 1996·51 cites·16 claims
- 0972US5388680ACoin handling system with an improved coin chuteINTELLICALL INC·Filed 1992·Granted Feb 14, 1995·65 cites·25 claims
- 1072US5351290ATelecommunications fraud prevention system and methodINTELLICALL INC·Filed 1992·Granted Sep 27, 1994·64 cites·2 claims
- 1171US5557089ACard reader system and method of operationINTELLICALL INC·Filed 1995·Granted Sep 17, 1996·47 cites·18 claims
- 1269USD342251SPay telephone unitINTELLICALL INC·Filed 1992·Granted Dec 14, 1993·17 cites·1 claims
- 1366US5093858AMethod and apparatus for performing an automated collect callINTELLICALL INC·Filed 1990·Granted Mar 3, 1992·35 cites·18 claims
- 1465US7567658B1Method to verify designation of pay telephone with an interexchange carrierINTELLICALL INC·Filed 2005·Granted Jul 28, 2009·4 cites·38 claims
- 1563US5159698ASMDR translatorINTELLICALL INC·Filed 1991·Granted Oct 27, 1992·45 cites·20 claims
- 1661US4920558AMethod and apparatus for downloading speech filesINTELLICALL INC·Filed 1989·Granted Apr 24, 1990·19 cites·21 claims
- 1751US5131027AShort time validity storageINTELLICALL INC·Filed 1990·Granted Jul 14, 1992·20 cites·4 claims
- 1848US5113433AMethod and apparatus for altering the access format of telephone callsINTELLICALL INC·Filed 1990·Granted May 12, 1992·17 cites·6 claims
- 1946US5960072AMethod and apparatus for altering the access format of telephone callsINTELLICALL INC·Filed 1993·Granted Sep 28, 1999·15 cites·5 claims
- 2042US5400400APay telephone architectureINTELLICALL INC·Filed 1993·Granted Mar 21, 1995·12 cites·8 claims
- 2141US5090548ACoin handling systemINTELLICALL INC·Filed 1990·Granted Feb 25, 1992·12 cites·16 claims
- 2234US5441138ACoin handling system with an improved coin chuteINTELLICALL INC·Filed 1994·Granted Aug 15, 1995·5 cites·6 claims
- 2330US6014433ADynamic escrow type detection systemINTELLICALL INC·Filed 1997·Granted Jan 11, 2000·2 cites·23 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →