Assignee
BELL CANADA
CA·30 granted patents·9 pending applications·2,085 citations·filing 1984–2010
Top patents by PatentIndex Score
39 records- 0196US5479488AMethod and apparatus for automation of directory assistance using speech recognitionBELL CANADA·Filed 1994·Granted Dec 26, 1995·416 cites·20 claims
- 0295USD288441STubular telephone unitBELL CANADA·Filed 1985·Granted Feb 24, 1987·71 cites·1 claims
- 0393US5179420AOptical time domain reflectometer using a tunable optical sourceBELL CANADA·Filed 1991·Granted Jan 12, 1993·83 cites·13 claims
- 0490US6940973B1Method and apparatus for cancelling common mode noise occurring in communications channelsBELL CANADA·Filed 2000·Granted Sep 6, 2005·100 cites·14 claims
- 0589US5390278APhoneme based speech recognitionBELL CANADA·Filed 1991·Granted Feb 14, 1995·209 cites·28 claims
- 0688US6735293B2Method and system for facilitating telecommunications service provisioning and service assuranceBELL CANADA·Filed 2001·Granted May 11, 2004·91 cites·30 claims
- 0788US6097804AMethod and system for completing a voice connection between first and second voice terminals in a switched telephone networkBELL CANADA·Filed 1997·Granted Aug 1, 2000·212 cites·32 claims
- 0887US6226289B1Method and apparatus for dynamically routing calls in an intelligent networkBELL CANADA·Filed 1997·Granted May 1, 2001·123 cites·56 claims
- 0986US6476749B1High speed analog-to-digital converter and digital-to-analog converterBELL CANADA·Filed 1999·Granted Nov 5, 2002·76 cites·5 claims
- 1085US5881132AMethod and apparatus for monitoring selected telecommunications sessions in an intelligent switched telephone networkBELL CANADA·Filed 1997·Granted Mar 9, 1999·97 cites·17 claims
- 1183US6959056B2RFI canceller using narrowband and wideband noise estimatorsBELL CANADA·Filed 2001·Granted Oct 25, 2005·53 cites·18 claims
- 1279US6456657B1Frequency division multiplexed transmission of sub-band signalsBELL CANADA·Filed 1997·Granted Sep 24, 2002·78 cites·60 claims
- 1378US6236722B1Method and system for using TCAP signaling for improved call setup from a virtual switching pointBELL CANADA·Filed 1998·Granted May 22, 2001·92 cites·44 claims
- 1474US6961415B2Method and system for facilitating telecommunications service provisioning and service assuranceBELL CANADA·Filed 2004·Granted Nov 1, 2005·24 cites·45 claims
- 1572US4567115APressure impregnation of wood poles for preservationBELL CANADA·Filed 1984·Granted Jan 28, 1986·22 cites·22 claims
- 1671US6584179B1Method and apparatus for improving the utility of speech recognitionBELL CANADA·Filed 1997·Granted Jun 24, 2003·63 cites·26 claims
- 1770US6111946AMethod and system for providing answer supervision in a switched telephone networkBELL CANADA·Filed 1998·Granted Aug 29, 2000·36 cites·38 claims
- 1865US6456701B1Network-centric control of access to transceiversBELL CANADA·Filed 2000·Granted Sep 24, 2002·6 cites·56 claims
- 1963US6546057B1Suppression of radio frequency interference and impulse noise in communications channelsBELL CANADA·Filed 1999·Granted Apr 8, 2003·50 cites·7 claims
- 2061US5933481AMethod of controlling call traffic in a telecommunication systemBELL CANADA·Filed 1996·Granted Aug 3, 1999·45 cites·5 claims
- 2160US2003120553A1Method and apparatus for vending and delivering telephone servicesBELL CANADA·Filed 2001·Application pending·0 cites
- 2259US2006190353A1Method and apparatus for vending and delivering telephone servicesBELL CANADA·Filed 2006·Application pending·0 cites
- 2356US5698829APhotodegradation of toxic contaminantsBELL CANADA·Filed 1995·Granted Dec 16, 1997·23 cites·11 claims
- 2452US6687350B1Smart card reader and transaction systemBELL CANADA·Filed 1998·Granted Feb 3, 2004·56 cites·44 claims
- 2551US4847002AImproved stabilization of wood preservative solutions and preservation of wood by such solutionsBELL CANADA·Filed 1987·Granted Jul 11, 1989·15 cites·53 claims
- 2651US2004105536A1System for providing access to a voice mail systemBELL CANADA·Filed 2003·Application pending·0 cites
- 2750US2005289471A1Method and system for initiating communications with dispersed team members from within a virtual team environment using personal identifiersBELL CANADA·Filed 2005·Application pending·0 cites
- 2848US6493444B2Enhanced application telephone networkBELL CANADA·Filed 1999·Granted Dec 10, 2002·10 cites·27 claims
- 2948US2003099341A1Method and system for providing access to a voice mail systemBELL CANADA·Filed 2001·Application pending·0 cites
- 3047US2005234829A1Method and system for content delivery control using a parallel networkBELL CANADA·Filed 2005·Application pending·0 cites
- 3146US2010306539A1Method and system for content delivery control using a parallel networkBELL CANADA·Filed 2010·Application pending·0 cites
- 3245USD293639SWall mounted shelf and telephone unitBELL CANADA·Filed 1985·Granted Jan 12, 1988·5 cites·1 claims
- 3344US2003235281A1Method and system for providing secure access to a telephone serviceBELL CANADA·Filed 2002·Application pending·0 cites
- 3441US5719930AMethod of volume screening signalling messages in a telecommunication systemBELL CANADA·Filed 1996·Granted Feb 17, 1998·19 cites·7 claims
- 3540USD290043STelephone boothBELL CANADA·Filed 1984·Granted May 26, 1987·2 cites·1 claims
- 3638US2006112092A1Content-based image retrieval methodBELL CANADA·Filed 2003·Application pending·0 cites
- 3734USD356565STelephone kioskBELL CANADA·Filed 1993·Granted Mar 21, 1995·2 cites·1 claims
- 3828USD473521SConnector cable for computer to vehicle universal data bus (UDB) portBELL CANADA·Filed 2002·Granted Apr 22, 2003·5 cites·1 claims
- 3928US4918885AMethod and apparatus for inhibiting ice mass formationBELL CANADA·Filed 1987·Granted Apr 24, 1990·1 cites·19 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →