Inventor

ZAHN DAVID A

US3 patents

⚠️ This page may combine multiple inventors who share the name “ZAHN DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LUCENT TECHNOLOGIES INC

1 patent

US7388490B2Jun 17, 2008

Methods and systems for locating VOIP terminals for improved 911 service

LUCENT TECHNOLOGIES INC39 citations89

ALCATEL LUCENT USA INC

1 patent

US7792264B2Sep 7, 2010

Ring tone selected by calling party of third party played to called party

ALCATEL LUCENT USA INC14 citations82

PFLEGING GERALD W

1 patent

US8160220B2Apr 17, 2012

Request to block use of remotely selected ring tone

PFLEGING GERALD W5 citations55