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Ker-Ren Tu
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Manalapan, NJ, US
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Patents Grants
last 30 patents
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Patent Grant
Method and apparatus for detecting a network impairment using call...
Patent number
8,908,558
Issue date
Dec 9, 2014
AT&T Intellectual Property II, L.P.
Howard Lang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for monitoring a packet network
Patent number
8,908,557
Issue date
Dec 9, 2014
AT&T Intellectual Property II, L.P.
Howard Lang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for detecting a network impairment using call...
Patent number
8,503,313
Issue date
Aug 6, 2013
AT&T Intellectual Property II, L.P.
Howard Lang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for monitoring a packet network
Patent number
8,477,637
Issue date
Jul 2, 2013
AT&T Intellectual Property II, L.P.
Howard Lang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR DETECTING A NETWORK IMPAIRMENT USING CALL...
Publication number
20130322263
Publication date
Dec 5, 2013
AT&T Intellectual Property II, L.P.
Howard Lang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MONITORING A PACKET NETWORK
Publication number
20130272154
Publication date
Oct 17, 2013
HOWARD LANG
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR MONITORING OF A NETWORK DEVICE
Publication number
20090154362
Publication date
Jun 18, 2009
CHIN-WANG CHAO
H04 - ELECTRIC COMMUNICATION TECHNIQUE