Inventor · disambiguated record
William Todd Marshall
Also filed as: MARSHALL WILLIAM T · MARSHALL WILLIAM TODD
38 granted patents·1,643 citations·filing 1985–2018
98Inventor score
Files withAT & T CORP22AT & T IP II LP9KALMANEK CHARLES ROBERT JR3AMERICAN TELEPHONE & TELEGRAPH1BELLOVIN STEVEN MICHAEL1
Top patents by PatentIndex Score
38 records- 0197US7492886B1Method for allocating network resourcesAT & T IP II LP·Filed 2007·Granted Feb 17, 2009·55 cites·19 claims
- 0296US6324279B1Method for exchanging signaling messages in two phasesAT & T CORP·Filed 1999·Granted Nov 27, 2001·271 cites·60 claims
- 0395US7305081B1Method for exchanging signaling messages in two phasesAT & T CORP·Filed 2006·Granted Dec 4, 2007·31 cites·32 claims
- 0493US7778240B1Method for performing gate coordination on a per-call basisAT & T IP II LP·Filed 2007·Granted Aug 17, 2010·18 cites·10 claims
- 0590US6823059B2Method for allocating network resourcesAT & T CORP·Filed 2002·Granted Nov 23, 2004·49 cites·59 claims
- 0689US7742467B1Method for performing segmented resource reservationAT & T IP II LP·Filed 2007·Granted Jun 22, 2010·16 cites·16 claims
- 0789US6498797B1Method and apparatus for communication services on a networkAT & T CORP·Filed 1998·Granted Dec 24, 2002·153 cites·29 claims
- 0887US6577718B1Method for call forwarding without hairpinning and with split billingAT & T CORP·Filed 1999·Granted Jun 10, 2003·92 cites·15 claims
- 0987US6574335B1Method for simulating a ring back for a call between parties in different communication networksAT & T CORP·Filed 1999·Granted Jun 3, 2003·126 cites·15 claims
- 1086US8249059B2Method for performing gate coordination on a per-call basisKALMANEK CHARLES ROBERT JR·Filed 2010·Granted Aug 21, 2012·6 cites·18 claims
- 1186US6694429B1Method for establishing call state information without maintaining state information at gate controllersAT & T CORP·Filed 1999·Granted Feb 17, 2004·76 cites·71 claims
- 1285US7151772B1Method for performing lawfully-authorized electronic surveillanceAT & T CORP·Filed 1999·Granted Dec 19, 2006·114 cites·10 claims
- 1384US7274662B1Method for performing segmented resource reservationAT & T CORP·Filed 1999·Granted Sep 25, 2007·128 cites·7 claims
- 1482US7035410B1Method and apparatus for enhanced security in a broadband telephony networkAT & T CORP·Filed 2000·Granted Apr 25, 2006·36 cites·25 claims
- 1582US6748070B2Method for allocating network resourcesAT & T CORP·Filed 2002·Granted Jun 8, 2004·24 cites·40 claims
- 1681US7206397B1Method for allocating network resourcesAT & T CORP·Filed 2005·Granted Apr 17, 2007·7 cites·50 claims
- 1781US6483912B1Method for allocating network resourcesAT & T CORP·Filed 1999·Granted Nov 19, 2002·86 cites·39 claims
- 1880US7245610B1Method for performing gate coordination on a per-call basisAT & T CORP·Filed 2004·Granted Jul 17, 2007·15 cites·10 claims
- 1979US6915421B1Method for establishing call state information without maintaining state information at gate controllersAT & T CORP·Filed 2003·Granted Jul 5, 2005·13 cites·71 claims
- 2078US6983040B1Method for call forwarding without hairpinning and with split billingAT & T CORP·Filed 2003·Granted Jan 3, 2006·14 cites·1 claims
- 2177US7289490B1Method for performing gate coordination on a per-call basisAT & T CORP·Filed 2004·Granted Oct 30, 2007·12 cites·6 claims
- 2276US7711098B1Method for call forwarding without hairpinning and with split billingAT & T IP II LP·Filed 2005·Granted May 4, 2010·3 cites·2 claims
- 2375US8284911B1Method for call forwarding without hairpinning and with split billingKALMANEK CHARLES ROBERT JR·Filed 2009·Granted Oct 9, 2012·3 cites·2 claims
- 2474US6757290B1Method for performing gate coordination on a per-call basisAT & T CORP·Filed 1999·Granted Jun 29, 2004·45 cites·6 claims
- 2573US9277058B2Methods, systems, and products for voice-over internet protocol callsAT & T IP II LP·Filed 2014·Granted Mar 1, 2016·1 cites·20 claims
- 2673US6098188APacket framerLUCENT TECHNOLOGIES INC·Filed 1995·Granted Aug 1, 2000·81 cites·6 claims
- 2769US9112923B1Method for performing lawfully-authorized electronic surveillanceKALMANEK JR CHARLES ROBERT·Filed 2006·Granted Aug 18, 2015·4 cites·6 claims
- 2869US6870845B1Method for providing privacy by network address translationAT & T CORP·Filed 1999·Granted Mar 22, 2005·64 cites·26 claims
- 2967US4852127AUniversal protocol data receiverAMERICAN TELEPHONE & TELEGRAPH·Filed 1985·Granted Jul 25, 1989·30 cites·9 claims
- 3066US5524116APacket framerAT & T CORP·Filed 1995·Granted Jun 4, 1996·59 cites·42 claims
- 3165US10237414B2Methods, systems, and products for voice-over internet protocol callsAT & T IP II LP·Filed 2018·Granted Mar 19, 2019·0 cites·20 claims
- 3264US9942411B2Methods, systems, and products for voice-over internet protocol callsAT & T IP II LP·Filed 2017·Granted Apr 10, 2018·0 cites·20 claims
- 3361US9762739B2Methods, systems, and products for voice-over internet protocol callsAT & T IP II LP·Filed 2016·Granted Sep 12, 2017·0 cites·20 claims
- 3456US8873547B2Method for performing gate coordination on a per-call basisKALMANEK CHARLES ROBERT JR·Filed 2012·Granted Oct 28, 2014·0 cites·18 claims
- 3556US8107479B2Method and system for telephony and high-speed data access on a broadband access networkBELLOVIN STEVEN MICHAEL·Filed 2003·Granted Jan 31, 2012·3 cites·4 claims
- 3656US7027581B1Method for exchanging signaling messages in two phasesAT & T CORP·Filed 2003·Granted Apr 11, 2006·3 cites·12 claims
- 3734US6665299B1Method and system for telephony and high speed data access on a broadband access networkAT & T CORP·Filed 1999·Granted Dec 16, 2003·5 cites·4 claims
- 3833US7920542B1Method and apparatus for providing secure voice/multimedia communications over internet protocolAT & T IP II LP·Filed 2005·Granted Apr 5, 2011·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →