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Chuyun Wu
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Dublin, OH, US
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last 30 patents
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Patent Grant
Method and apparatus for tracking call processing failure data in a...
Patent number
6,826,718
Issue date
Nov 30, 2004
SBC Holdings Properties, L.P.
Chuyun Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Method and apparatus for tracking call processing failure data in a...
Publication number
20050147052
Publication date
Jul 7, 2005
Chuyun Wu
H04 - ELECTRIC COMMUNICATION TECHNIQUE