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I-Hsiang Yu
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Lexington, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for short message service and instant messaging c...
Patent number
7,720,082
Issue date
May 18, 2010
NeuStar, Inc.
Sharon Fridman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus supporting short message services in a wireles...
Patent number
6,535,746
Issue date
Mar 18, 2003
Verizon Laboratories Inc.
I-Hsiang Yu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods and apparatus for local number portability in telecommunica...
Patent number
6,445,785
Issue date
Sep 3, 2002
Verizon Laboratories Inc.
May Y. Chan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for validating subscriber identities in a communi...
Patent number
6,338,140
Issue date
Jan 8, 2002
Iridium LLC
Leslie D. Owens
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for supporting short message services in a wir...
Patent number
6,240,296
Issue date
May 29, 2001
Verizon Laboratories Inc.
I-Hsiang Yu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Worldwide wireless subscriber access service
Patent number
6,192,241
Issue date
Feb 20, 2001
Verizon Laboratories Inc.
I-Hsiang Yu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for selecting a cellular system for communicat...
Patent number
5,787,347
Issue date
Jul 28, 1998
GTE Laboratories Incorporated
I-Hsiang Yu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for local number portability using nongeograph...
Patent number
5,764,745
Issue date
Jun 9, 1998
GTE Laboratories Incorporated
May Y. Chan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM AND METHOD FOR SHORT MESSAGE SERVICE AND INSTANT MESSAGING C...
Publication number
20080130663
Publication date
Jun 5, 2008
NeuStar, Inc.
Sharon Fridman
H04 - ELECTRIC COMMUNICATION TECHNIQUE