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David Cowings
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El Cerrito, CA, US
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Patents Grants
last 30 patents
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Patent Grant
System and method for filtering fraudulent email messages
Patent number
8,271,588
Issue date
Sep 18, 2012
Symantec Corporation
Mark Bruno
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for filtering spam messages utilizing URL filteri...
Patent number
8,145,710
Issue date
Mar 27, 2012
Symantec Corporation
David Cowings
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for certifying mass emailings
Patent number
8,135,778
Issue date
Mar 13, 2012
Symantec Corporation
Ren Chin
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for maintaining reputation lists of IP address...
Patent number
8,010,609
Issue date
Aug 30, 2011
Symantec Corporation
David Cowings
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for detecting spam in email messages and email...
Patent number
7,941,490
Issue date
May 10, 2011
Symantec Corporation
David O. Cowings
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
System and method for filtering spam messages utilizing URL filteri...
Publication number
20090070872
Publication date
Mar 12, 2009
David Cowings
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and apparatus for maintaining reputation lists of IP address...
Publication number
20060288076
Publication date
Dec 21, 2006
David Cowings
H04 - ELECTRIC COMMUNICATION TECHNIQUE