P

Inventor

O'BRIEN JR JAMES D

US5 patents
⚠️ This page may combine multiple inventors who share the name “O'BRIEN JR JAMES D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LEVEL 3 COMMUNICATIONS LLC

3 patents
US7363381B2Apr 22, 2008

Routing calls through a network

LEVEL 3 COMMUNICATIONS LLC44 citations91
US7369535B2May 6, 2008

Voice over Internet Protocol real time protocol routing

LEVEL 3 COMMUNICATIONS LLC13 citations82
US8374167B2Feb 12, 2013

Voice over internet protocol real time protocol routing

LEVEL 3 COMMUNICATIONS LLC1 citations61

BRIDGEPORT NETWORKS INC

1 patent
US7809381B2Oct 5, 2010

Presence detection for cellular and internet protocol telephony

BRIDGEPORT NETWORKS INC50 citations90

LEVEL 3 COMMUNICATION LLC

1 patent
US8780893B2Jul 15, 2014

Voice over internet protocol real time protocol routing

LEVEL 3 COMMUNICATION LLC2 citations60