PF

Paul W. Fellner

AS Ameritech Services: 6 patents #2 of 20Top 10%
AT AT&T: 1 patents #10,626 of 18,772Top 60%
OT Open Text: 1 patents #320 of 434Top 75%
Overall (All Time): #605,251 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12368728 Security event transformation and logging systems and methods Niyazi Eray Goknel, Johannes Mayr, Aqil Ahmed 2025-07-22
7796746 Method and system for call tracing James F. Langdon 2010-09-14
7221751 Method and system for call tracing James F. Langdon 2007-05-22
6925164 Method and system for call tracing James F. Langdon 2005-08-02
6718031 Method and system for call tracing James F. Langdon 2004-04-06
6404882 Method and system for call tracing James F. Langdon 2002-06-11
6243458 Method and system for call tracing James F. Langdon 2001-06-05
5999616 Method and system for call tracing James F. Langdon 1999-12-07