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Dennis Duffy
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Decatur, GA, US
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Patents Grants
last 30 patents
Information
Patent Grant
On-device activation of mobile computing devices
Patent number
10,667,125
Issue date
May 26, 2020
AT&T Intellectual Property, L.P.
Tina Steeley
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling registration of endpoint devices...
Patent number
9,143,538
Issue date
Sep 22, 2015
AT&T Intellectual Property I, L.P.
Steven A. Siegel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling customer premises public branch e...
Patent number
9,036,627
Issue date
May 19, 2015
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for sharing a single data channel for multiple...
Patent number
9,036,590
Issue date
May 19, 2015
AT&T Intellectual Property I, L.P.
Stephanie P. Parlamas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for network based fixed mobile convergence
Patent number
8,917,858
Issue date
Dec 23, 2014
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling customer premise public branch ex...
Patent number
8,625,579
Issue date
Jan 7, 2014
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling customer premise public branch ex...
Patent number
8,570,884
Issue date
Oct 29, 2013
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for sharing a single data channel for multiple...
Patent number
8,488,596
Issue date
Jul 16, 2013
AT&T Intellectual Property I, L.P.
Stephanie P. Parlamas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for network based fixed mobile convergence
Patent number
8,351,461
Issue date
Jan 8, 2013
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling customer premise public branch ex...
Patent number
8,340,085
Issue date
Dec 25, 2012
AT&T Intellectual Property I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for enabling registration of endpoint devices...
Patent number
8,305,983
Issue date
Nov 6, 2012
AT&T Intellectual Property I, L.P.
Steven A. Siegel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS FOR SHARING A SINGLE DATA CHANNEL FOR MULTIPLE...
Publication number
20130301577
Publication date
Nov 14, 2013
STEPHANIE P. PARLAMAS
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISES PUBLIC BRANCH E...
Publication number
20130089088
Publication date
Apr 11, 2013
AT&T INTELLECTUAL PROPERTY I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR NETWORK BASED FIXED MOBILE CONVERGENCE
Publication number
20130089014
Publication date
Apr 11, 2013
AT&T INTELLECTUAL PROPERTY I, L.P.
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING REGISTRATION OF ENDPOINT DEVICES...
Publication number
20130010772
Publication date
Jan 10, 2013
AT&T INTELLECTUAL PROPERTY I, L.P.
Steven A. Siegel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
Publication number
20100111078
Publication date
May 6, 2010
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
Publication number
20100111076
Publication date
May 6, 2010
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR SHARING A SINGLE DATA CHANNEL FOR MULTIPLE...
Publication number
20100111025
Publication date
May 6, 2010
Stephanie P. Parlamas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING REGISTRATION OF ENDPOINT DEVICES...
Publication number
20100111049
Publication date
May 6, 2010
Steven A. Siegel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR NETWORK BASED FIXED MOBILE CONVERGENCE
Publication number
20100111079
Publication date
May 6, 2010
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR ENABLING CUSTOMER PREMISE PUBLIC BRANCH EX...
Publication number
20100111077
Publication date
May 6, 2010
Dennis Duffy
H04 - ELECTRIC COMMUNICATION TECHNIQUE