Inventor · disambiguated record
David Andrew Barfoot
Also filed as: BARFOOT DAVID · BARFOOT DAVID A · BARFOOT DAVID ANDREW
53 granted patents·10 pending applications·382 citations·filing 2003–2021
98Inventor score
Files withHALLIBURTON ENERGY SERVICES INC53BAE SYS INF & ELECT SYS INTEG2HALLIBURTON ENERGY SERV INC2LECO CORP2BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INFORMATION INC1
Top patents by PatentIndex Score
63 records- 0198US10309213B2Distributed optical sensing using compressive samplingHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jun 4, 2019·30 cites·26 claims
- 0297US10444391B2Noise removal for distributed acoustic sensing dataHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Oct 15, 2019·22 cites·20 claims
- 0397US10209383B2Distributed acoustic sensing systems and methods employing under-filled multi-mode optical fiberHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Feb 19, 2019·12 cites·19 claims
- 0497US9766371B2Reflector configuration for distributed sensing in an optical fiber network using multiple sets of circulatorsHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Sep 19, 2017·27 cites·16 claims
- 0597US9719846B2Mud pulse detection using distributed acoustic sensingHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Aug 1, 2017·21 cites·20 claims
- 0697US9429466B2Distributed acoustic sensing systems and methods employing under-filled multi-mode optical fiberHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Aug 30, 2016·22 cites·15 claims
- 0796US10101182B2Interferometric high fidelity optical phase demodulation using 120 degree phase separationHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Oct 16, 2018·18 cites·23 claims
- 0896US9702244B2Distributed acoustic sensing gauge length effect mitigationHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jul 11, 2017·23 cites·24 claims
- 0995US10173381B2Method of manufacturing a distributed acoustic sensing cableHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jan 8, 2019·9 cites·16 claims
- 1094US11181346B1Methods for enhanced soft-kill countermeasure using a tracking radarBAE SYS INF & ELECT SYS INTEG·Filed 2019·Granted Nov 23, 2021·17 cites·20 claims
- 1194US9557195B2Apparatus and method of multiplexed or distributed sensingHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jan 31, 2017·22 cites·31 claims
- 1294US9500767B2Geo-locating positions along optical waveguidesHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Nov 22, 2016·10 cites·6 claims
- 1393US10267141B2Distributed sensing systems and methods with efficient energy spectrum analysisHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Apr 23, 2019·17 cites·25 claims
- 1492US10018036B2Distributed sensing systems and methods with I/Q data balancing based on ellipse fittingHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jul 10, 2018·18 cites·20 claims
- 1592US9617847B2Robust optical fiber-based distributed sensing systems and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 11, 2017·21 cites·18 claims
- 1691US11248879B1Soft kill laser configuration for ground vehicle threatsBAE SYS INF & ELECT SYS INTEG·Filed 2020·Granted Feb 15, 2022·10 cites·18 claims
- 1791US7139422B2Indentation hardness test systemLECO CORP·Filed 2005·Granted Nov 21, 2006·22 cites·20 claims
- 1888US11215727B2Gauge length effect and gauge length conversionHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Jan 4, 2022·3 cites·16 claims
- 1988US10215016B2Wellbore monitoring system using strain sensitive optical fiber cable packageHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 26, 2019·4 cites·21 claims
- 2087US9316762B2Geo-locating positions along optical waveguidesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 19, 2016·7 cites·7 claims
- 2186US11111780B2Distributed acoustic sensing system with phase modulator for mitigating faded channelsHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Sep 7, 2021·5 cites·16 claims
- 2284US9091155B2Reducing disturbance during fiber optic sensingHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jul 28, 2015·8 cites·20 claims
- 2382US11953294B1System and method for active protection system range estimationBAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INFORMATION INC·Filed 2021·Granted Apr 9, 2024·3 cites·16 claims
- 2481US10215015B2Strain sensitive optical fiber cable package for downhole distributed acoustic sensingHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 26, 2019·2 cites·26 claims
- 2575US6996264B2Indentation hardness test systemLECO CORP·Filed 2003·Granted Feb 7, 2006·12 cites·23 claims
- 2674US11940583B2Gauge length effect and gauge length conversionHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Mar 26, 2024·0 cites·9 claims
- 2773US11366244B2Distributed acoustic sensing system with a polarization control device for improving signal-to-noise ratioHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Jun 21, 2022·1 cites·20 claims
- 2873US10823866B2Arrayed distributed acoustic sensing using single-photon detectorsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Nov 3, 2020·2 cites·18 claims
- 2972US9500756B2Geo-locating positions along optical waveguidesHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Nov 22, 2016·1 cites·7 claims
- 3071US8897608B2High sampling resolution DTS system and methodKALAR KENT·Filed 2010·Granted Nov 25, 2014·4 cites·1 claims
- 3169US10274628B2Acoustic device for reducing cable wave induced seismic noisesHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Apr 30, 2019·1 cites·18 claims
- 3266US9864095B2Multiplexed microvolt sensor systemsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jan 9, 2018·1 cites·15 claims
- 3363US9611734B2Connecting fiber optic cablesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 4, 2017·2 cites·9 claims
- 3462US10704377B2Well monitoring with optical electromagnetic sensing systemHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jul 7, 2020·2 cites·17 claims
- 3562US9976920B2Detection of strain in fiber optics cables induced by narrow-band signalsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 22, 2018·1 cites·19 claims
- 3661US11149520B2Mitigation of attenuation for fiber optic sensing during cementingHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Oct 19, 2021·1 cites·20 claims
- 3753US10234311B2Modifying optical signals output by a wavelength division demultiplexer to detect subterranean physical propertiesHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Mar 19, 2019·0 cites·20 claims
- 3853US8894277B2Calibrated fire detection cableBARFOOT DAVID·Filed 2010·Granted Nov 25, 2014·1 cites·12 claims
- 3952US10247851B2Hybrid fiber optic cable for distributed sensingHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Apr 2, 2019·0 cites·19 claims
- 4051US9835478B2Optical power limiting method using stimulated Brillouin scattering in fiber optic waveguidesHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Dec 5, 2017·0 cites·22 claims
- 4150US10254159B2Power limiting methods for use with optical systems in hazardous area locationsHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 9, 2019·0 cites·27 claims
- 4249US10294778B2Downhole optical communicationHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted May 21, 2019·0 cites·19 claims
- 4349US10247840B2Optical well loggingHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Apr 2, 2019·0 cites·27 claims
- 4448US11313222B2Cooled single-photon detector apparatus and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Apr 26, 2022·0 cites·20 claims
- 4548US10612371B2Partially reflective materials and coatings for optical communication in a wellboreHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Apr 7, 2020·0 cites·17 claims
- 4647US11976552B2Distributed sensing systems and methods with spatial location correlationHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted May 7, 2024·0 cites·21 claims
- 4747US11048017B2Cooled optical apparatus, systems, and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Jun 29, 2021·0 cites·23 claims
- 4846US2015086152A1Quasioptical waveguides and systemsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Application pending·0 cites
- 4945US10794177B2Mud pump stroke detection using distributed acoustic sensingHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Oct 6, 2020·0 cites·20 claims
- 5045US2017093493A1Correction of chromatic dispersion in remote distributed sensingHALLIBURTON ENERGY SERVICES INC·Filed 2014·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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