Inventor · disambiguated record
Hwan Jang Tang
Also filed as: TANG HWAN · TANG HWAN JANG
13 granted patents·1 pending application·142 citations·filing 2002–2017
89Inventor score
Top patents by PatentIndex Score
14 records- 0188US7577131B2System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internetIBASIS INC·Filed 2003·Granted Aug 18, 2009·74 cites·17 claims
- 0287US8265062B2System and method for accomplishing special call treatment in a voice over internet protocol telephone systemTANG HWAN-JANG·Filed 2005·Granted Sep 11, 2012·32 cites·53 claims
- 0385US9392436B2Method and apparatus for voice over LTEIBASIS INC·Filed 2014·Granted Jul 12, 2016·7 cites·31 claims
- 0482US10979890B2Policy control frameworkIBASIS INC·Filed 2016·Granted Apr 13, 2021·5 cites·40 claims
- 0581US9788188B2Method and system for hub breakout roamingIBASIS INC·Filed 2013·Granted Oct 10, 2017·7 cites·37 claims
- 0677US10911932B2Method and system for hub breakout roamingIBASIS INC·Filed 2017·Granted Feb 2, 2021·2 cites·38 claims
- 0772US7529225B2System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internetIBASIS INC·Filed 2002·Granted May 5, 2009·15 cites·52 claims
- 0854US8351421B2System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internetIBASIS INC·Filed 2009·Granted Jan 8, 2013·0 cites·16 claims
- 0947US10291661B2Method and system for call routingIBASIS INC·Filed 2014·Granted May 14, 2019·0 cites·34 claims
- 1047US9693219B2User profile conversion to support roamingIBASIS INC·Filed 2014·Granted Jun 27, 2017·0 cites·19 claims
- 1147US9444738B2System and method for monitoring the volume of calls carried by a voice over internet protocol telephone systemYURCHENKO VITALIY·Filed 2008·Granted Sep 13, 2016·0 cites·23 claims
- 1247US8248957B2System and method for voice over internet protocol (VoIP) and facsimile over internet protocol (FoIP) calling over the internetJOSEPH AJAY·Filed 2009·Granted Aug 21, 2012·0 cites·11 claims
- 1347US2017041233A1System and method for monitoring the volume of calls carried by a voice over internet protocol telephone systemIBASIS INC·Filed 2016·Application pending·0 cites
- 1439US10979462B2Identifying voice over LTE usersIBASIS INC·Filed 2015·Granted Apr 13, 2021·0 cites·17 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →