Inventor · disambiguated record
Robert Turnbull
Also filed as: TURNBULL ROBERT · TURNBULL ROBERT B · TURNBULL ROBERT BARRIE
12 granted patents·394 citations·filing 1994–2021
93Inventor score
Files withNORTEL NETWORKS CORP4NORTHERN TELECOM LTD4AVAYA INC1FELDMAN ALEXANDER JEFFREY1HEWLETT PACKARD DEVELOPMENT CO1
Top patents by PatentIndex Score
12 records- 0178US6088362AKey telephone system without common controlNORTEL NETWORKS CORP·Filed 1998·Granted Jul 11, 2000·87 cites·8 claims
- 0277US5787115AKey telephone system without common controlNORTHERN TELECOM LTD·Filed 1995·Granted Jul 28, 1998·86 cites·16 claims
- 0373USD609212STelephone setNORTEL NETWORKS LTD·Filed 2007·Granted Feb 2, 2010·17 cites·1 claims
- 0472USD668642STelephone handsetFELDMAN ALEXANDER JEFFREY·Filed 2010·Granted Oct 9, 2012·24 cites·1 claims
- 0572US6108630AText-to-speech driven annunciation of caller identificationNORTEL NETWORKS CORP·Filed 1997·Granted Aug 22, 2000·77 cites·56 claims
- 0668US5892814AFlexible, tapeless, personalized auto-attendant telephoneNORTHERN TELECOM LTD·Filed 1996·Granted Apr 6, 1999·51 cites·8 claims
- 0753US11895258B2Teleconferencing device with readily adaptive supportHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Feb 6, 2024·0 cites·20 claims
- 0852USD634295SKey extension module for telephoneAVAYA INC·Filed 2009·Granted Mar 15, 2011·7 cites·1 claims
- 0950US6046995AKey telephone system without common controlNORTEL NETWORKS CORP·Filed 1998·Granted Apr 4, 2000·21 cites·5 claims
- 1047US5590189AMethod of operating a microprocessor controlled telephone setNORTHERN TELECOM LTD·Filed 1994·Granted Dec 31, 1996·20 cites·5 claims
- 1130US6072826AKey telephone system without common controlNORTEL NETWORKS CORP·Filed 1998·Granted Jun 6, 2000·1 cites·16 claims
- 1230US5768367AMethod and apparatus for removing FSK in-band signalingNORTHERN TELECOM LTD·Filed 1996·Granted Jun 16, 1998·3 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →