Inventor

JOHNSTON DAVID EDWARD

CA5 patents

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

BCE INC

2 patents

US7587033B2Sep 8, 2009

Methods and systems for rendering voice mail messages amenable to electronic processing by mailbox owners

BCE INC21 citations90

US7864930B2Jan 4, 2011

Systems and methods for registration and retrieval of voice mail contact information

BCE INC6 citations60

NEWSTEP NETWORKS INC

2 patents

US6766009B2Jul 20, 2004

Method and system for correlating telephone calls with information delivery

NEWSTEP NETWORKS INC15 citations81

US6839422B2Jan 4, 2005

Method and apparatus for providing local call treatment discrimination for selected calls on a switched telephone network

NEWSTEP NETWORKS INC8 citations71

REVD NETWORKS INC

1 patent

US6724876B2Apr 20, 2004

Method and apparatus for effecting telecommunications service features using call control information extracted from a bearer channel in a telecommunications network

REVD NETWORKS INC32 citations87