Inventor · disambiguated record
Harold E. A. Hansen, Ii
Also filed as: HANSEN HAROLD E · HANSEN HAROLD E A · HANSEN II HAROLD E A
16 granted patents·1 pending application·273 citations·filing 1992–2013
94Inventor score
Top patents by PatentIndex Score
17 records- 0190USRE39722ETelephone call/voice processing systemESTECH SYSTEMS INC·Filed 2005·Granted Jul 10, 2007·16 cites·49 claims
- 0279US7068684B1Quality of service in a voice over IP telephone systemESTECH SYSTEMS INC·Filed 2001·Granted Jun 27, 2006·26 cites·61 claims
- 0378US6925167B2Service observing in a voice over IP telephone systemESTECH SYSTEMS INC·Filed 2002·Granted Aug 2, 2005·24 cites·4 claims
- 0472US5351290ATelecommunications fraud prevention system and methodINTELLICALL INC·Filed 1992·Granted Sep 27, 1994·64 cites·2 claims
- 0571US7221741B1Dialing using caller IDESTECH SYSTEMS INC·Filed 2000·Granted May 22, 2007·13 cites·19 claims
- 0670US6252944B1Telephone call/voice processing systemESTECH SYSTEMS INC·Filed 1997·Granted Jun 26, 2001·54 cites·49 claims
- 0768US7564834B1Shared knowledge in a telephone systemESTECH SYSTEMS INC·Filed 2002·Granted Jul 21, 2009·9 cites·14 claims
- 0867US8194845B2Telephone systemHANSEN HAROLD E A·Filed 2008·Granted Jun 5, 2012·2 cites·3 claims
- 0967US7421066B1Telephone call/voice processing systemESTECH SYSTEMS INC·Filed 2001·Granted Sep 2, 2008·6 cites·34 claims
- 1065US7123699B2Voice mail in a voice over IP telephone systemESTECH SYSTEMS INC·Filed 2002·Granted Oct 17, 2006·8 cites·5 claims
- 1163US6842505B1Communications system enhanced with human presence sensing capabilitiesESTECH SYSTEMS INC·Filed 1999·Granted Jan 11, 2005·38 cites·33 claims
- 1260US7860083B2Shared knowledge in a telephone systemESTECH SYSTEMS INC·Filed 2009·Granted Dec 28, 2010·0 cites·19 claims
- 1357US7826440B1Quality of service in a remote telephoneESTECH SYSTEMS INC·Filed 2002·Granted Nov 2, 2010·4 cites·54 claims
- 1457US2014029736A1Telecommunications System and MethodESTECH SYSTEMS INC·Filed 2013·Application pending·0 cites
- 1550US8538002B2Telephone systemHANSEN HAROLD E·Filed 2012·Granted Sep 17, 2013·0 cites·18 claims
- 1647US8391298B2Phone directory in a voice over IP telephone systemSUDER ERIC G·Filed 2003·Granted Mar 5, 2013·1 cites·19 claims
- 1739US6940962B1Dial on-holdESTECH SYSTEMS INC·Filed 1997·Granted Sep 6, 2005·8 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →