Inventor · disambiguated record
Tawassul Ali Khan
Also filed as: KHAN TAWASSUL A · KHAN TAWASSUL ALI
14 granted patents·1 pending application·530 citations·filing 1978–2013
94Inventor score
Technology areasG01V
Files withNONLINEAR SEISMIC IMAGING INC8WESTERN ATLAS INT INC3GEOSOURCE INC2HALLIBURTON GEOPHYS SERVICE1KHAN TAWASSUL A1
Top patents by PatentIndex Score
15 records- 0191US4982374AMethod of source coding and harmonic cancellation for vibrational geophysical survey sourcesHALLIBURTON GEOPHYS SERVICE·Filed 1989·Granted Jan 1, 1991·120 cites·8 claims
- 0284US6175536B1Cross-well seismic mapping method for determining non-linear properties of earth formations between wellboresWESTERN ATLAS INT INC·Filed 1997·Granted Jan 16, 2001·86 cites·9 claims
- 0382US6597632B2Mapping subsurface fractures using nonlinearity measurementsNONLINEAR SEISMIC IMAGING INC·Filed 2001·Granted Jul 22, 2003·52 cites·9 claims
- 0481US6789018B1Mapping reservoir rocks using frequency spectral broadening and the presence of the slow-waveNONLINEAR SEISMIC IMAGING INC·Filed 2003·Granted Sep 7, 2004·49 cites·2 claims
- 0578US6631783B2Mapping reservoir characteristics using earth's nonlinearity as a seismic attributeNONLINEAR SEISMIC IMAGING INC·Filed 2001·Granted Oct 14, 2003·41 cites·5 claims
- 0674US6614717B1Time-lapse seismic using nonlinear seismic imagingNONLINEAR SEISMIC IMAGING INC·Filed 2001·Granted Sep 2, 2003·43 cites·5 claims
- 0769US9234971B2Direct reservoir signature using the drag waveNONLINEAR SEISMIC IMAGING INC·Filed 2013·Granted Jan 12, 2016·4 cites·6 claims
- 0868US6807487B2Mapping permeable reservoir formations by measuring the elastic nonlinear interactions of a seismic wave as it propagates through the reservoir rock matrix and its pore fluidsNONLINEAR SEISMIC IMAGING INC·Filed 2001·Granted Oct 19, 2004·28 cites·7 claims
- 0967US6009043ACross-well connectivity mapping including separation of compressional and shear wave energyWESTERN ATLAS INT INC·Filed 1998·Granted Dec 28, 1999·42 cites·10 claims
- 1059US6684159B2Mapping subsurface open fractures in a reservoir using a surface impulse and a downhole vibratory sourceKHAN TAWASSUL A·Filed 2002·Granted Jan 27, 2004·25 cites·8 claims
- 1154US6678617B2Mapping subsurface open fractures using elastically nonlinear interaction of two surface-generated wavesNONLINEAR SEISMIC IMAGING INC·Filed 2001·Granted Jan 13, 2004·14 cites·6 claims
- 1248US4246652ASeismic source signatured evaluation apparatusGEOSOURCE INC·Filed 1978·Granted Jan 20, 1981·14 cites·18 claims
- 1336US5740125ACross-well connectivity mapping including separation of compressional and shear wave energyWESTERN ATLAS INT INC·Filed 1996·Granted Apr 14, 1998·11 cites·12 claims
- 1435US2009175125A1Direct Mapping of Oil-Saturated Subsurface FormationsNONLINEAR SEISMIC IMAGING INC·Filed 2008·Application pending·0 cites
- 1527US4307790AWeight-drop seismic exploration systemGEOSOURCE INC·Filed 1978·Granted Dec 29, 1981·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →