Inventor · disambiguated record
Robert Lowmaster
Also filed as: LOWMASTER ROBERT · LOWMASTER ROBERT P · LOWMASTER ROBERT PAUL
11 granted patents·6 pending applications·26 citations·filing 2003–2014
86Inventor score
Files withAT & T IP I LP4SBC KNOWLEDGE VENTURES LP4AT & T KNOWLEDGE VENTURES LP2ELIAS MARK ANTHONY2LOWMASTER ROBERT2
Top patents by PatentIndex Score
17 records- 0168US8391276B2Methods and apparatus to form secure cross-virtual private network communications sessionsELIAS MARK A·Filed 2008·Granted Mar 5, 2013·3 cites·19 claims
- 0265US7260089B2Remote worker access on networked PBX systems using a VoIP platformSBC KNOWLEDGE VENTURES LP·Filed 2004·Granted Aug 21, 2007·7 cites·20 claims
- 0364US7356023B2System and method for facilitating packetized calls between managed networksSBC KNOWLEDGE VENTURES LP·Filed 2003·Granted Apr 8, 2008·9 cites·25 claims
- 0463US8879543B2Methods and apparatus to form secure cross-virtual private network communication sessionsAT & T IP I LP·Filed 2013·Granted Nov 4, 2014·1 cites·20 claims
- 0563US8279850B2Methods and apparatus to implement voice over internet protocol (VoIP) phonesELIAS MARK ANTHONY·Filed 2006·Granted Oct 2, 2012·3 cites·21 claims
- 0657US7664251B2Abbreviated dialing between PBX and Centrex systems using a VoIP platformAT & T IP I LP·Filed 2004·Granted Feb 16, 2010·3 cites·13 claims
- 0757US2010091766A1Abbreviated dialing using a voip platformAT & T IP I LP·Filed 2009·Application pending·0 cites
- 0856US9246879B2Methods and apparatus to form secure cross-virtual private network communication sessionsAT & T IP I LP·Filed 2014·Granted Jan 26, 2016·0 cites·20 claims
- 0949US8107462B2System and method of routing telephone callsLOWMASTER ROBERT·Filed 2007·Granted Jan 31, 2012·0 cites·22 claims
- 1049US2008137648A1System and Method for Facilitating Calls Between Packet-Based NetworksSBC KNOWLEDGE VENTURES LP·Filed 2008·Application pending·0 cites
- 1148US2006133350A1System and method for inter-working centrex with a managed VoIP providerLOWMASTER ROBERT P·Filed 2004·Application pending·0 cites
- 1247US2008298347A1Method and system for playing packetized annoucements to telephone network end office switching systems from a centralized digital recorded announcement unitAT & T KNOWLEDGE VENTURES LP·Filed 2008·Application pending·0 cites
- 1346US9154336B2Methods and apparatus to implement voice over internet protocol (VoIP) phonesELIAS MARK ANTHONY·Filed 2012·Granted Oct 6, 2015·0 cites·14 claims
- 1441US2007109963A1Internet protocol telephony proxy deviceWALTER EDWARD·Filed 2005·Application pending·0 cites
- 1540US7406158B2Method and system for playing packetized announcements to telephone network end office switching systems from a centralized digital recorded announcement unitAT & T KNOWLEDGE VENTURES LP·Filed 2003·Granted Jul 29, 2008·0 cites·23 claims
- 1639US2006222150A1Emergency call notification and responseSBC KNOWLEDGE VENTURES LP·Filed 2005·Application pending·0 cites
- 1735US9100237B2VoIP 911 address locator serviceLOWMASTER ROBERT·Filed 2005·Granted Aug 4, 2015·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →