Inventor · disambiguated record
Stian Hegna
Also filed as: HEGNA STIAN
52 granted patents·6 pending applications·211 citations·filing 2006–2024
98Inventor score
Top patents by PatentIndex Score
58 records- 0194US8456950B2Method for wave decomposition using multi-component motion sensorsHEGNA STIAN·Filed 2010·Granted Jun 4, 2013·20 cites·12 claims
- 0289US8902698B2Methods and apparatus for seismic exploration using pressure changes caused by sea-surface variationsHEGNA STIAN·Filed 2011·Granted Dec 2, 2014·10 cites·24 claims
- 0389US8596409B2Systems and methods for producing directed seismic waves in waterPARKES GREGORY ERNEST·Filed 2011·Granted Dec 3, 2013·11 cites·21 claims
- 0487US7539079B2System and method for determining positions of towed marine source-array elementsPGS GEOPHYSICAL AS·Filed 2006·Granted May 26, 2009·27 cites·22 claims
- 0586US9910063B2Magnetometer as an orientation sensorPGS GEOPHYSICAL AS·Filed 2016·Granted Mar 6, 2018·3 cites·20 claims
- 0684US9329293B2Systems and methods for removing acquisition related effects from seismic dataPGS GEOPHYSICAL AS·Filed 2013·Granted May 3, 2016·6 cites·42 claims
- 0784US7881159B2Seismic streamers which attentuate longitudinally traveling wavesPGS GEOPHYSICAL AS·Filed 2006·Granted Feb 1, 2011·19 cites·31 claims
- 0883US7733740B2Sensor mount for marine seismic streamerPGS GEOPHYSICAL AS·Filed 2007·Granted Jun 8, 2010·13 cites·18 claims
- 0982US10459100B2Survey techniques using streamers at different depthsPGS GEOPHYSICAL AS·Filed 2013·Granted Oct 29, 2019·5 cites·27 claims
- 1082US9903966B2Seismic data acquisitionPGS GEOPHYSICAL AS·Filed 2014·Granted Feb 27, 2018·4 cites·21 claims
- 1182US9874646B2Seismic data processingPGS GEOPHYSICAL AS·Filed 2014·Granted Jan 23, 2018·4 cites·13 claims
- 1282US9684086B2Method for acquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the sourcePGS GEOPHYSICAL AS·Filed 2015·Granted Jun 20, 2017·2 cites·13 claims
- 1382US9513392B2Estimation of direct arrival signals based on predicted direct arrival signals and measurementsPGS GEOPHYSICAL AS·Filed 2014·Granted Dec 6, 2016·4 cites·24 claims
- 1482US8345510B2Method for aquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source(s)PGS GEOPHYSICAL AS·Filed 2009·Granted Jan 1, 2013·18 cites·8 claims
- 1581US9110180B2Method for acquiring and processing marine seismic data to extract and constructively use the up-going and down-going wave-fields emitted by the source(s)PGS GEOPHYSICAL AS·Filed 2012·Granted Aug 18, 2015·4 cites·5 claims
- 1681US8792297B2Methods for gathering marine geophysical dataHILLESUND ØYVIND·Filed 2010·Granted Jul 29, 2014·5 cites·15 claims
- 1779US9921325B2Wavefield separation based on a matching operator between sensor responses in multi-component streamersPGS GEOPHYSICAL AS·Filed 2014·Granted Mar 20, 2018·4 cites·31 claims
- 1877US11099287B2Seismic data processingPGS GEOPHYSICAL AS·Filed 2018·Granted Aug 24, 2021·1 cites·18 claims
- 1976US10267936B2Estimating an earth responsePGS GEOPHYSICAL AS·Filed 2017·Granted Apr 23, 2019·1 cites·20 claims
- 2075US10338255B2Noise attenuationPGS GEOPHYSICAL AS·Filed 2017·Granted Jul 2, 2019·1 cites·29 claims
- 2175US9411062B2Method and system for determining source signatures after source ghost removalPARKES GREGORY ERNEST·Filed 2012·Granted Aug 9, 2016·3 cites·10 claims
- 2275US8902699B2Method for separating up and down propagating pressure and vertical velocity fields from pressure and three-axial motion sensors in towed streamersSÖLLNER WALTER·Filed 2010·Granted Dec 2, 2014·4 cites·44 claims
- 2375US8600680B2Method for eliminating spectral constraints of acquisition system and earth filtering effectsPARKES GREGORY ERNEST·Filed 2011·Granted Dec 3, 2013·4 cites·18 claims
- 2474US11092710B2Inversion techniques using streamers at different depthsPGS GEOPHYSICAL AS·Filed 2013·Granted Aug 17, 2021·3 cites·18 claims
- 2573US10495770B2Individual actuation within a source subarrayPGS GEOPHYSICAL AS·Filed 2016·Granted Dec 3, 2019·1 cites·26 claims
- 2673US7518953B2Method for detecting air gun faults in a marine seismic source arrayPGS GEOPHYSICAL AS·Filed 2007·Granted Apr 14, 2009·11 cites·6 claims
- 2772US11480701B2Non-uniform towing patterns in marine geophysical surveysPGS GEOPHYSICAL AS·Filed 2018·Granted Oct 25, 2022·1 cites·18 claims
- 2872US9915745B2Separation of up-going and down-going wavefields including the direct arrivalPGS GEOPHYSICAL AS·Filed 2016·Granted Mar 13, 2018·1 cites·28 claims
- 2971US9851464B2Methods for gathering marine geophysical dataPGS GEOPHYSICAL AS·Filed 2014·Granted Dec 26, 2017·2 cites·20 claims
- 3071US9442209B2Methods and systems for reconstruction of low frequency particle velocity wavefields and deghosting of seismic streamer dataSÖLLNER WALTER·Filed 2012·Granted Sep 13, 2016·3 cites·20 claims
- 3170US9482766B2Time-efficient tests to detect air gun faultsPGS GEOPHYSICAL AS·Filed 2013·Granted Nov 1, 2016·3 cites·21 claims
- 3269US10073183B2Methods and systems that attenuate noise in seismic dataPGS GEOPHYSICAL AS·Filed 2015·Granted Sep 11, 2018·1 cites·35 claims
- 3367US12379517B2Using ambient acoustic energy as a passive source in marine seismic surveysPGS GEOPHYSICAL AS·Filed 2022·Granted Aug 5, 2025·0 cites·50 claims
- 3466US11579323B2Noise attenuationPGS GEOPHYSICAL AS·Filed 2019·Granted Feb 14, 2023·0 cites·20 claims
- 3565US8982663B2Subsurface imaging systems and methods with multi-source survey component segregation and redeterminationAARON PETER·Filed 2011·Granted Mar 17, 2015·3 cites·18 claims
- 3665US2025060497A1Using Uncontrolled Acoustic Energy in Combination with Controlled Seismic Source Energy to Retrieve Information About a SubsurfacePGS GEOPHYSICAL AS·Filed 2024·Application pending·0 cites
- 3764US11125900B2Estimating an earth responsePGS GEOPHYSICAL AS·Filed 2019·Granted Sep 21, 2021·0 cites·21 claims
- 3863US2020081147A1Individual Actuation within a Source SubarrayPGS GEOPHYSICAL AS·Filed 2019·Application pending·0 cites
- 3962US9291737B2Methods and systems for imaging subterranean formations with primary and multiple reflectionsSOLLNER WALTER·Filed 2012·Granted Mar 22, 2016·3 cites·22 claims
- 4061US12099155B2Attenuation of axial vibration noise in pressure sensor measurementsPGS GEOPHYSICAL AS·Filed 2021·Granted Sep 24, 2024·0 cites·31 claims
- 4161US10401518B2Estimation of direct arrival signals based on predicted direct arrival signals and measurementsPGS GEOPHYSICAL AS·Filed 2016·Granted Sep 3, 2019·0 cites·19 claims
- 4260US9001618B2Method of attenuating noise in marine seismic streamers utilizing varied sensor spacing and position-dependent band-pass filtersHEGNA STIAN·Filed 2007·Granted Apr 7, 2015·5 cites·12 claims
- 4358US10989825B2Method and system for determining source signatures after source ghost removalPGS GEOPHYSICAL AS·Filed 2016·Granted Apr 27, 2021·0 cites·16 claims
- 4456US11994640B2Attenuation of low-frequency noise in continuously recorded wavefieldsPGS GEOPHYSCIAL AS·Filed 2020·Granted May 28, 2024·0 cites·21 claims
- 4556US11573345B2Inline sourcePGS GEOPHYSICAL AS·Filed 2020·Granted Feb 7, 2023·0 cites·22 claims
- 4654US10557749B2Isolating a portion of electric potentials generated by a hydrophone indicative of particle motion or pressurePGS GEOPHYSICAL AS·Filed 2017·Granted Feb 11, 2020·0 cites·21 claims
- 4747US2020333485A1Randomizing sweeps in a marine surveyPGS GEOPHYSICAL AS·Filed 2020·Application pending·0 cites
- 4846US9207340B2Marine seismic streamer cable with noise suppressing sensor supportSTENZEL ANDRE·Filed 2008·Granted Dec 8, 2015·1 cites·28 claims
- 4945US10234578B2Methods and systems to operate marine sources to avoid air in water effectsPGS GEOPHYSICAL AS·Filed 2014·Granted Mar 19, 2019·0 cites·31 claims
- 5043US2020033503A1Alternating Current Coupled Accelerometer CalibrationPGS GEOPHYSICAL AS·Filed 2018·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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