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Zhijian Xu
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Duluth, GA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Methods, apparatus and articles of manufacture to monitor communica...
Patent number
8,908,505
Issue date
Dec 9, 2014
AT&T Intellectual Property I, L.P.
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods, apparatus and articles of manufacture to monitor communica...
Patent number
8,498,203
Issue date
Jul 30, 2013
AT&T Intellectual Property I, L.P.
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods, apparatus and articles of manufacture to monitor communica...
Patent number
8,279,771
Issue date
Oct 2, 2012
AT&T Intellectual Property I, L.P.
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatus to detect border gateway protocol session fai...
Patent number
7,804,781
Issue date
Sep 28, 2010
AT&T Intellectual Property I, L.P.
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for providing predictive maintenance relating to trunk opera...
Patent number
7,773,727
Issue date
Aug 10, 2010
AT&T Intellectual Property II, L.P.
Hossein Eslambolchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for providing detection of fault location for defect calls i...
Patent number
7,505,567
Issue date
Mar 17, 2009
AT&T Corp.
Hossein Eslambolchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO MONITOR COMMUNICA...
Publication number
20130294258
Publication date
Nov 7, 2013
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO MONITOR COMMUNICA...
Publication number
20120269073
Publication date
Oct 25, 2012
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO MONITOR COMMUNICA...
Publication number
20110075567
Publication date
Mar 31, 2011
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Methods and Apparatus to Detect Border Gateway Protocol Session Fai...
Publication number
20100124170
Publication date
May 20, 2010
Zhijian Xu
H04 - ELECTRIC COMMUNICATION TECHNIQUE