Inventor · disambiguated record
Harald Westerdahl
Also filed as: WESTERDAHL HARALD
22 granted patents·2 pending applications·795 citations·filing 1999–2019
96Inventor score
Files withNORSKE STATS OLJESELSKAP5STATOIL ASA5STATOIL PETROLEUM AS5NORGES GEOTEKNISKE INST2NORSK HYDRO AS2
Top patents by PatentIndex Score
24 records- 0195US6859038B2Method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic wavesSTATOIL ASA·Filed 2002·Granted Feb 22, 2005·63 cites·101 claims
- 0293US6628119B1Method and apparatus for determining the content of subterranean reservoirsNORSKE STATS OLJESELSKAP·Filed 1999·Granted Sep 30, 2003·124 cites·37 claims
- 0390US9081111B2Method of providing seismic dataAMUNDSEN LASSE·Filed 2011·Granted Jul 14, 2015·12 cites·43 claims
- 0489US6717411B2Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic wavesSTATOIL ASA·Filed 2002·Granted Apr 6, 2004·61 cites·29 claims
- 0586US6696839B2Electromagnetic methods and apparatus for determining the content of subterranean reservoirsSTATOIL ASA·Filed 2002·Granted Feb 24, 2004·51 cites·18 claims
- 0685US7026819B2Electromagnetic surveying for mapping the content of subterranean reservoirsNORGES GEOTEKNISKE INST·Filed 2003·Granted Apr 11, 2006·29 cites·38 claims
- 0785US6480000B1Device and method for measurement of resistivity outside of a wellpipeNORSKE STATS OLJESELSKAP·Filed 1999·Granted Nov 12, 2002·112 cites·26 claims
- 0884US6864684B2Electromagnetic methods and apparatus for determining the content of subterranean reservoirsSTATOIL ASA·Filed 2004·Granted Mar 8, 2005·44 cites·28 claims
- 0981US7145341B2Method and apparatus for recovering hydrocarbons from subterranean reservoirsELECTROMAGNETIC GEOSERVICES AS·Filed 2004·Granted Dec 5, 2006·40 cites·30 claims
- 1076US7456632B2Method for monitoring low-resistivity formation using polarized wavesNORSK HYDRO AS·Filed 2004·Granted Nov 25, 2008·17 cites·17 claims
- 1176US6900639B2Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic wavesSTATOIL ASA·Filed 2004·Granted May 31, 2005·30 cites·28 claims
- 1274US6556014B1Device and method for measurement by guided waves on a metal string in a wellNORSKE STATS OLJESELSKAP·Filed 1999·Granted Apr 29, 2003·56 cites·40 claims
- 1372US7982465B2Electromagnetic method on shallow water using a controlled sourceMULTIFIELD GEOPHYSICS AS·Filed 2007·Granted Jul 19, 2011·7 cites·17 claims
- 1471US6612397B2Shear wave generatorNORGES GEOTEKNISKE INST·Filed 2000·Granted Sep 2, 2003·41 cites·10 claims
- 1571US6525540B1Method and device for detection of em waves in a wellNORSKE STATS OLJESELSKAP·Filed 1999·Granted Feb 25, 2003·63 cites·45 claims
- 1667US11733418B2P/S wave measurement and compensationSTATOIL PETROLEUM AS·Filed 2019·Granted Aug 22, 2023·0 cites·22 claims
- 1762US10386520B2Seismic sensor recording systemSTATOIL PETROLEUM AS·Filed 2014·Granted Aug 20, 2019·2 cites·13 claims
- 1858US7453265B2Device for monitoring of oil-water interfaceNORSK HYDRO AS·Filed 2004·Granted Nov 18, 2008·21 cites·20 claims
- 1956US10365388B2P/S wave measurement and compensationSTATOIL PETROLEUM AS·Filed 2015·Granted Jul 30, 2019·0 cites·14 claims
- 2056US9389323B2Apparatus for marine seismic surveySTATOIL PETROLEUM AS·Filed 2014·Granted Jul 12, 2016·0 cites·11 claims
- 2154US2019271790A1Seismic sensor recording systemSTATOIL PETROLEUM AS·Filed 2019·Application pending·0 cites
- 2248US6714153B1Device for electromagnetic detection of geological properties in a wellNORSKE STATS OLJESELSKAP·Filed 1999·Granted Mar 30, 2004·22 cites·18 claims
- 2345US11181654B2Method for deghosting seismic dataEQUINOR ENERGY AS·Filed 2018·Granted Nov 23, 2021·0 cites·22 claims
- 2429US2009114473A1Shear wave generatorNGI·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →