Inventor · disambiguated record
Frederick W. Hansen
Also filed as: HANSEN FREDERICK W
8 granted patents·650 citations·filing 1979–2000
91Inventor score
Top patents by PatentIndex Score
8 records- 0189US6430174B1Communication system supporting simultaneous voice and multimedia communications and method of operation thereforeNORTEL NETWORKS LTD·Filed 1997·Granted Aug 6, 2002·193 cites·24 claims
- 0284US5940475ATelephone system integrated text based communication apparatus and system to enhance access for TDD and/or TTY devicesNORTHERN TELECOM LTD·Filed 1997·Granted Aug 17, 1999·125 cites·25 claims
- 0378US6078650ATelephone system integrated text based communication processes to enhance access for TDD and/or TTY devicesNORTEL NETWORKS CORP·Filed 1997·Granted Jun 20, 2000·90 cites·27 claims
- 0478US6002749ATelephone system integrated text based communication apparatus and systems to establish communication links to TDD and/or TTY devices and other telephone and text server systemsNORTEL NETWORKS CORP·Filed 1997·Granted Dec 14, 1999·91 cites·34 claims
- 0575US5943395ATelephone apparatus, systems, and processes to enhance access for TDD and/or TTY devicesNORTHERN TELECOM LTD·Filed 1997·Granted Aug 24, 1999·74 cites·14 claims
- 0672US6775696B1Systems and methods for collecting and providing call traffic information to end-usersURISYS CORP·Filed 2000·Granted Aug 10, 2004·24 cites·27 claims
- 0764US5933476ATTY telephone display and related processes systems and apparatusNORTHERN TELECOM LTD·Filed 1997·Granted Aug 3, 1999·40 cites·34 claims
- 0847US4268945AMethod of assemblying a sealed structureBENDIX CORP·Filed 1979·Granted May 26, 1981·13 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →