Inventor · disambiguated record
Mark A. Ratcliffe
Also filed as: RATCLIFFE MARK · RATCLIFFE MARK A
40 granted patents·3 pending applications·570 citations·filing 1996–2023
98Inventor score
Top patents by PatentIndex Score
43 records- 0195US9674639B2Method and apparatus for virtualized network function chaining managementAT & T IP I LP·Filed 2015·Granted Jun 6, 2017·12 cites·20 claims
- 0293US5983217AApparatus and method for querying replicated databasesAT & T CORP·Filed 1997·Granted Nov 9, 1999·166 cites·16 claims
- 0392US10659427B1Call processing continuity within a cloud networkAT & T IP I LP·Filed 2019·Granted May 19, 2020·8 cites·20 claims
- 0490US10432736B2Method and apparatus for virtualized network function chaining managementAT & T IP I LP·Filed 2018·Granted Oct 1, 2019·4 cites·20 claims
- 0590US7826390B2Method and apparatus for providing a distributed subscriber load distributionAT & T IP I LP·Filed 2008·Granted Nov 2, 2010·25 cites·20 claims
- 0689US7366782B2Systems and methods for termination of session initiation protocolAT & T CORP·Filed 2004·Granted Apr 29, 2008·65 cites·3 claims
- 0788US7657015B1Method and apparatus for processing multiple services per callAT & T CORP·Filed 2005·Granted Feb 2, 2010·12 cites·3 claims
- 0887US8369313B2IMS and method of multiple S-CSCF operation in support of single PUIDAT & T IP I LP·Filed 2008·Granted Feb 5, 2013·15 cites·18 claims
- 0986US10212035B2Message flow management for virtual networksAT & T IP I LP·Filed 2016·Granted Feb 19, 2019·4 cites·20 claims
- 1081US10511480B2Message flow management for virtual networksAT & T IP I LP·Filed 2019·Granted Dec 17, 2019·2 cites·20 claims
- 1180US9930127B2Method and apparatus for virtualized network function chaining managementAT & T IP I LP·Filed 2017·Granted Mar 27, 2018·2 cites·20 claims
- 1279US9872328B2Updating connectivity with a communication network and methods thereofAT & T IP I LP·Filed 2016·Granted Jan 16, 2018·2 cites·20 claims
- 1378US6377674B1Method for global title translation processingAT & T CORP·Filed 1998·Granted Apr 23, 2002·58 cites·27 claims
- 1472US8239554B2Systems and methods for termination of session initiation protocolCHONG KOAN S·Filed 2008·Granted Aug 7, 2012·5 cites·20 claims
- 1572US8121274B2Method and apparatus for processing multiple services per callBROWN JOHN C·Filed 2009·Granted Feb 21, 2012·3 cites·20 claims
- 1669US11637761B2Systems and methods to deploy cloud-native microservices for communication services on scaleAT & T IP I LP·Filed 2022·Granted Apr 25, 2023·0 cites·20 claims
- 1769US8339956B2Method and apparatus for providing a centralized subscriber load distributionNOEL ERIC·Filed 2008·Granted Dec 25, 2012·3 cites·20 claims
- 1868US9854005B2Methods and apparatus for providing network based services to non-registering endpointsAT & T IP I LP·Filed 2017·Granted Dec 26, 2017·1 cites·19 claims
- 1968US8792480B2IMS and method of multiple S-CSCF operation in support of single PUIDAT & T IP I LP·Filed 2012·Granted Jul 29, 2014·2 cites·17 claims
- 2068US2023291662A1Systems and methods to deploy cloud-native microservices for communication services on scaleAT & T IP I LP·Filed 2023·Application pending·0 cites
- 2167US9544940B2Updating connectivity with a communication network and methods thereofAT & T IP I LP·Filed 2014·Granted Jan 10, 2017·1 cites·20 claims
- 2267US6829338B2Network having space chattering control for maximizing call throughput during overloadAT & T CORP·Filed 2002·Granted Dec 7, 2004·8 cites·12 claims
- 2366US7274780B1Network having space chattering control for maximizing call throughput during overloadAT & T CORP·Filed 2005·Granted Sep 25, 2007·2 cites·12 claims
- 2466US6101494AApparatus and method for querying replicated databases using segmentation directoriesAT & T CORP·Filed 1999·Granted Aug 8, 2000·25 cites·13 claims
- 2565US8812700B2Method and apparatus for providing network based services to non-registering endpointsLU MIN·Filed 2008·Granted Aug 19, 2014·2 cites·20 claims
- 2665US5864563AMethod for testing networkAT & T CORP·Filed 1996·Granted Jan 26, 1999·41 cites·33 claims
- 2764US10887404B2Method and apparatus for virtualized network function chaining managementAT & T IP I LP·Filed 2019·Granted Jan 5, 2021·0 cites·20 claims
- 2864US9071527B2Method and apparatus for providing a centralized subscriber load distributionAT & T IP I LP·Filed 2012·Granted Jun 30, 2015·1 cites·20 claims
- 2964US5915013AMethod and system for achieving routing of signalling informationAT & T CORP·Filed 1997·Granted Jun 22, 1999·26 cites·29 claims
- 3063US8533340B2IP multimedia subsystem virtual call/session control functionsRATCLIFFE MARK·Filed 2007·Granted Sep 10, 2013·4 cites·13 claims
- 3162US11431587B2Systems and methods to deploy cloud-native microservices for communication services on scaleAT & T IP I LP·Filed 2020·Granted Aug 30, 2022·0 cites·20 claims
- 3262US6205557B1Redundant call processingAT & T CORP·Filed 1998·Granted Mar 20, 2001·40 cites·24 claims
- 3361US9379914B2Method and system for implementing aggregate endpoints on IMS networksLU MIN·Filed 2007·Granted Jun 28, 2016·3 cites·14 claims
- 3461US8547965B2Methods, apparatus and articles of manufacture to provide uniform resource identifier portabilityLU MIN·Filed 2009·Granted Oct 1, 2013·2 cites·9 claims
- 3560US8700786B2Systems and methods for termination of session initiation protocolCHONG KOAN S·Filed 2012·Granted Apr 15, 2014·1 cites·20 claims
- 3656US9571528B2Method and apparatus for providing network based services to non-registering endpointsAT & T IP I LP·Filed 2014·Granted Feb 14, 2017·0 cites·20 claims
- 3752US9462049B2Method and apparatus for providing a centralized subscriber load distributionAT & T IP I LP·Filed 2015·Granted Oct 4, 2016·0 cites·20 claims
- 3852US6977995B1Network having space chattering control for maximizing call throughput during overloadAT & T CORP·Filed 2004·Granted Dec 20, 2005·0 cites·7 claims
- 3950US6665730B1Method and apparatus for transaction routing in a connection-oriented packet network using a non-fault-tolerant directory serverAT & T CORP·Filed 1999·Granted Dec 16, 2003·25 cites·26 claims
- 4049US8787360B2Method and apparatus for processing multiple services per callBROWN JOHN C·Filed 2012·Granted Jul 22, 2014·0 cites·13 claims
- 4143US11003516B2Geographical redundancy and dynamic scaling for virtual network functionsAT & T IP I LP·Filed 2017·Granted May 11, 2021·0 cites·15 claims
- 4238US2006165064A1Method and apparatus for a network element to track the availability of other network elementsBROWN JOHN C·Filed 2005·Application pending·0 cites
- 4336US2001053218A1Transaction bridging/forwarding in signaling system of telecommunications networkFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →