Inventor · disambiguated record
Douglas R. Murdock
Also filed as: MURDOCK DOUGLAS R
22 granted patents·1 pending application·2,658 citations·filing 1990–2006
98Inventor score
Files withLINKUSA CORP13LINK USA CORP3MCI COMMUNICATIONS CORP3GLOBAL CROSSING LTD1GLOBAL CROSSING NORTH AMERICA1
Top patents by PatentIndex Score
23 records- 0197US5638430ACall validation systemLINKUSA CORP·Filed 1995·Granted Jun 10, 1997·197 cites·21 claims
- 0297US5633919AReal-time billing system for a call processing systemLINKUSA CORP·Filed 1995·Granted May 27, 1997·163 cites·14 claims
- 0397US5590181ACall-processing system and methodLINK USA CORP·Filed 1993·Granted Dec 31, 1996·213 cites·23 claims
- 0496US5586175ACall-processing system and methodLINKUSA CORP·Filed 1995·Granted Dec 17, 1996·144 cites·43 claims
- 0596US5483587ASystem and method for call conferencingLINKUSA CORP·Filed 1994·Granted Jan 9, 1996·232 cites·22 claims
- 0696US5222120ALong distance telephone switching system with enhanced subscriber servicesMCI COMMUNICATIONS CORP·Filed 1990·Granted Jun 22, 1993·272 cites·36 claims
- 0794US5867566AReal-time billing system for a call processing systemLINKUSA CORP·Filed 1996·Granted Feb 2, 1999·107 cites·18 claims
- 0893US6016343ACall-processing system and methodLINK USA CORP·Filed 1996·Granted Jan 18, 2000·113 cites·22 claims
- 0993US5646982ASystem and method for message deliveryLINKUSA CORP·Filed 1994·Granted Jul 8, 1997·209 cites·20 claims
- 1092US6643362B2Call-processing system and methodGLOBAL CROSSING LTD·Filed 2001·Granted Nov 4, 2003·99 cites·5 claims
- 1192US5873099ASystem and method for maintaining redundant databasesLINKUSA CORP·Filed 1995·Granted Feb 16, 1999·95 cites·38 claims
- 1292US5854833AProcessing using DEF recordsLINKUSA CORP·Filed 1995·Granted Dec 29, 1998·78 cites·25 claims
- 1392US5799156ASystem for determining an alternative application to receive message from first application when the number of times to resend the message to second application is exceededLINKUSA CORP·Filed 1995·Granted Aug 25, 1998·88 cites·46 claims
- 1489US6263372B1Method and apparatus for interfacing two or more applications in a client serverLINK USA CORP·Filed 1998·Granted Jul 17, 2001·66 cites·41 claims
- 1588US5555290ALong distance telephone switching system with enhanced subscriber servicesMCI COMMUNICATIONS CORP·Filed 1995·Granted Sep 10, 1996·116 cites·11 claims
- 1688US5546449ASystem and method for call conferencingLINKUSA CORP·Filed 1995·Granted Aug 13, 1996·114 cites·46 claims
- 1786US5903637ASystem and method for call conferencingLINKUSA CORP·Filed 1996·Granted May 11, 1999·103 cites·8 claims
- 1884US5615251AReal-time reconfigurationLINKUSA CORP·Filed 1995·Granted Mar 25, 1997·43 cites·20 claims
- 1979US6279038B1Client interfaceGLOBAL CROSSING NORTH AMERICA·Filed 1998·Granted Aug 21, 2001·96 cites·28 claims
- 2078US5619554ADistributed voice system and methodLINKUSA CORP·Filed 1994·Granted Apr 8, 1997·81 cites·16 claims
- 2163US5550899ALong distance telephone switching system with enhanced subscriber servicesMCI COMMUNICATIONS CORP·Filed 1993·Granted Aug 27, 1996·29 cites·8 claims
- 2250US2004013253A1Call processing rate quote system and methodFiled 2003·Application pending·0 cites
- 2348US8265245B2Call-processing rate quote system and methodHOGAN STEVEN J·Filed 2006·Granted Sep 11, 2012·0 cites·26 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →