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Keith S. Fischer
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Sunnyvale, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for communicating data and management information
Patent number
6,311,220
Issue date
Oct 30, 2001
Nortel Networks Limited
Keith S. Fischer
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for locating and isolating a fault within a to...
Patent number
6,219,335
Issue date
Apr 17, 2001
Nortel Networks Corporation
Wilson C. W. Luk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for locating and isolating a fault within a to...
Patent number
6,175,553
Issue date
Jan 16, 2001
Nortel Networks Corporation
Wilson C. W. Luk
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for providing a multiple-ring token ring hub e...
Patent number
6,035,340
Issue date
Mar 7, 2000
Nortel Networks Corporation
Keith Fischer
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for communicating data and management information
Patent number
6,014,704
Issue date
Jan 11, 2000
Nortel Networks Corporation
Keith S. Fischer
G06 - COMPUTING CALCULATING COUNTING