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Hwan-Jang Tang
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Lexington, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Identifying voice over LTE users
Patent number
10,979,462
Issue date
Apr 13, 2021
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Policy control framework
Patent number
10,979,890
Issue date
Apr 13, 2021
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for hub breakout roaming
Patent number
10,911,932
Issue date
Feb 2, 2021
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for call routing
Patent number
10,291,661
Issue date
May 14, 2019
iBasis, Inc.
Manpreet Singh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for hub breakout roaming
Patent number
9,788,188
Issue date
Oct 10, 2017
iBasis, Inc.
Richard X. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
User profile conversion to support roaming
Patent number
9,693,219
Issue date
Jun 27, 2017
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for monitoring the volume of calls carried by a v...
Patent number
9,444,738
Issue date
Sep 13, 2016
iBasis, Inc.
Vitaliy Yurchenko
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for voice over LTE
Patent number
9,392,436
Issue date
Jul 12, 2016
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for voice over internet protocol (VoIP) and facsi...
Patent number
8,351,421
Issue date
Jan 8, 2013
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for accomplishing special call treatment in a voi...
Patent number
8,265,062
Issue date
Sep 11, 2012
iBasis, Inc.
Hwan-Jang Tang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for voice over internet protocol (VoIP) and facsi...
Patent number
8,248,957
Issue date
Aug 21, 2012
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for voice over internet protocol (VoIP) and facsi...
Patent number
7,577,131
Issue date
Aug 18, 2009
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for voice over internet protocol (VoIP) and facsi...
Patent number
7,529,225
Issue date
May 5, 2009
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Policy Control Framework
Publication number
20180077564
Publication date
Mar 15, 2018
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR HUB BREAKOUT ROAMING
Publication number
20180063696
Publication date
Mar 1, 2018
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR MONITORING THE VOLUME OF CALLS CARRIED BY A V...
Publication number
20170041233
Publication date
Feb 9, 2017
iBasis, Inc.
Vitaliy YURCHENKO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Identifying Voice Over LTE Users
Publication number
20160212177
Publication date
Jul 21, 2016
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
User Profile Conversion To Support Roaming
Publication number
20160119773
Publication date
Apr 28, 2016
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method And System For Call Routing
Publication number
20140269681
Publication date
Sep 18, 2014
iBasis, Inc.
Manpreet Singh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and Apparatus For Voice Over LTE
Publication number
20140269510
Publication date
Sep 18, 2014
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and System For Hub Breakout Roaming
Publication number
20140169286
Publication date
Jun 19, 2014
iBasis, Inc.
Richard H. Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR VOICE OVER INTERNET PROTOCOL (VoIP) AND FACSI...
Publication number
20090238175
Publication date
Sep 24, 2009
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR VOICE OVER INTERNET PROTOCOL (VoIP) AND FACSI...
Publication number
20090213846
Publication date
Aug 27, 2009
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEM AND METHOD FOR MONITORING THE VOLUME OF CALLS CARRIED BY A V...
Publication number
20090010168
Publication date
Jan 8, 2009
Vitaliy YURCHENKO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for accomplishing special call treatment in a Voi...
Publication number
20060092926
Publication date
May 4, 2006
iBasis, Inc.
Hwan-Jang Tang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for voice over internet protocol (VoIP) and facsi...
Publication number
20040047345
Publication date
Mar 11, 2004
iBasis, Inc.
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for voice over Internet protocol (VoIP) and facsi...
Publication number
20030123436
Publication date
Jul 3, 2003
Ajay Joseph
H04 - ELECTRIC COMMUNICATION TECHNIQUE