PL

Patricia A. Landgren

TN Tango Networks: 62 patents #2 of 9Top 25%
Nortel Networks Limited: 4 patents #772 of 5,294Top 15%
📍 Plano, TX: #66 of 4,842 inventorsTop 2%
🗺 Texas: #1,053 of 125,132 inventorsTop 1%
Overall (All Time): #32,320 of 4,157,543Top 1%
66
Patents All Time

Issued Patents All Time

Showing 51–66 of 66 patents

Patent #TitleCo-InventorsDate
8634800 System, method, and apparatus for using alternative numbers for routing voice calls and short messages in a communications network Andrew Silver 2014-01-21
8488598 Call flow system and method for use in a VoIP telecommunication system Andrew Silver, Lathan Lewis 2013-07-16
8457615 Method and apparatus of supporting wireless femtocell communications Andrew Silver 2013-06-04
8433371 System and method for enabling DTMF detection in a VoIP network Andrew Silver, Lathan Lewis 2013-04-30
8412241 System, method, and apparatus for using alternative numbers for routing voice calls and short messages in a communications network Andrew Silver 2013-04-02
8271049 System and method for enabling DTMF detection in a VoIP network Andrew Silver, Lathan Lewis 2012-09-18
8086254 System, method, and apparatus for using alternative numbers for routing voice calls and short messages in a communications network Andrew Silver 2011-12-27
8023479 Mobile application gateway for connecting devices on a cellular network with individual enterprise and data networks Andrew Silver, Lathan Lewis, Glen Schmid 2011-09-20
8024455 System, method, and computer-readable medium for implementing intelligent network service functionality in a network Lathan Lewis, Andrew Silver 2011-09-20
7903635 System and method for enabling DTMF detection in a VoIP network Andrew Silver, Lathan Lewis 2011-03-08
7873032 Call flow system and method use in VoIP telecommunication system Andrew Silver, Lathan Lewis 2011-01-18
7843901 Call flow system and method for use in a legacy telecommunication system Andrew Silver, Lathan Lewis 2010-11-30
6198917 System and method of operation for correctly routing location update service messages in a cellular digital packet data system Cecil L. Taylor 2001-03-06
6115754 System and method for appending location information to a communication sent from a mobile terminal operating in a wireless communication system to an internet server 2000-09-05
5881060 Integrated cellular voice and digital packet data telecommunications systems and methods for their operation Glenn Morrow, Emad A. Qaddoura, Charles J. Derrick, Kenneth W. Pecot, Nivedan Thadasina +2 more 1999-03-09
5711008 Cellular packet data arrangement Martin Gallant, Emad A. Qaddoura 1998-01-20