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Donald Wurch
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Rockwall, TX, US
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last 30 patents
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Patent Grant
Method and system for switching between two network access technolo...
Patent number
7,177,952
Issue date
Feb 13, 2007
Nortel Networks Limited
Donald L. Wurch
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Public telephone network, intelligent network, and internet protoco...
Patent number
6,611,533
Issue date
Aug 26, 2003
Nortel Networks Limited
Monling Liao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Computer program products, methods, and protocol for interworking s...
Patent number
6,529,524
Issue date
Mar 4, 2003
Nortel Networks Limited
Monling Liao
H04 - ELECTRIC COMMUNICATION TECHNIQUE