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Feng Cao
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Sunnyvale, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Distributing policies to protect against voice spam and denial-of-s...
Patent number
8,402,507
Issue date
Mar 19, 2013
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Real-time location information from mobile devices including embedd...
Patent number
8,238,935
Issue date
Aug 7, 2012
Cisco Technology, Inc.
Wen-hsiung Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for distributed IP telephony tracking
Patent number
7,974,394
Issue date
Jul 5, 2011
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sharing and tracking real-time location for mobile users
Patent number
7,831,259
Issue date
Nov 9, 2010
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Butterfly network with switches set for two node disjoint paths and...
Patent number
7,787,449
Issue date
Aug 31, 2010
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for providing optimal VoIP call routing in VRF...
Patent number
7,653,048
Issue date
Jan 26, 2010
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Butterfly network with switches set for two node disjoint paths and...
Patent number
7,113,506
Issue date
Sep 26, 2006
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Butterfly network with switches set for two node disjoint paths and...
Patent number
6,618,371
Issue date
Sep 9, 2003
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
REAL-TIME LOCATION INFORMATION FROM MOBILE DEVICES INCLUDING EMBEDD...
Publication number
20090298512
Publication date
Dec 3, 2009
Wen-hsiung Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISTRIBUTING POLICIES TO PROTECT AGAINST VOICE SPAM AND DENIAL-OF-S...
Publication number
20090094666
Publication date
Apr 9, 2009
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SHARING AND TRACKING REAL-TIME LOCATION FOR MOBILE USERS
Publication number
20080318593
Publication date
Dec 25, 2008
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Butterfly network with switches set for two node disjoint paths and...
Publication number
20070070993
Publication date
Mar 29, 2007
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for providing optimal VoIP call routing in VRF...
Publication number
20060227765
Publication date
Oct 12, 2006
Cisco Technology, Inc.
Feng Cao
H04 - ELECTRIC COMMUNICATION TECHNIQUE