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Yi Zhang
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Austin, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for migrating active communication session bet...
Patent number
10,397,341
Issue date
Aug 27, 2019
AT&T Intellectual Property I, L.P.
Marco Schneider
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for migrating active communication session bet...
Patent number
10,064,031
Issue date
Aug 28, 2018
AT&T Intellectual Property I, L.P.
Marco Schneider
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for migrating active communication session bet...
Patent number
9,756,137
Issue date
Sep 5, 2017
AT&T Intellectual Property I, L.P.
Marco Schneider
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for migrating active communication session bet...
Patent number
9,537,704
Issue date
Jan 3, 2017
AT&T Intellectual Property I, L.P.
Marco Schneider
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Calling card system for voice and data transmission over a public n...
Patent number
7,525,950
Issue date
Apr 28, 2009
SBC Properties, L.P.
Yi Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR MIGRATING ACTIVE COMMUNICATION SESSION BET...
Publication number
20180332123
Publication date
Nov 15, 2018
AT&T INTELLECTUAL PROPERTY I, L.P.
Marco SCHNEIDER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MIGRATING ACTIVE COMMUNICATION SESSION BET...
Publication number
20170332219
Publication date
Nov 16, 2017
AT&T INTELLECTUAL PROPERTY I, L.P.
Marco SCHNEIDER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MIGRATING ACTIVE COMMUNICATION SESSION BET...
Publication number
20170078407
Publication date
Mar 16, 2017
AT&T INTELLECTUAL PROPERTY I, L.P.
Marco SCHNEIDER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MIGRATING BETWEEN TERMINALS
Publication number
20070274292
Publication date
Nov 29, 2007
SBC Knowledge Ventures, L.P.
MARCO SCHNEIDER
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Methods and apparatus for automated provisioning of voice over inte...
Publication number
20070086432
Publication date
Apr 19, 2007
Marco Schneider
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for migrating messaging services between service...
Publication number
20060215632
Publication date
Sep 28, 2006
SBC Knowledge Ventures, L.P.
Thomas Adams
H04 - ELECTRIC COMMUNICATION TECHNIQUE