Inventor · disambiguated record
Borislav J. Tchakarov
Also filed as: TCHAKAROV BORISLAV · TCHAKAROV BORISLAV J
33 granted patents·4 pending applications·810 citations·filing 1993–2024
98Inventor score
Files withBAKER HUGHES INC13WELL RESOLUTIONS TECH13TCHAKAROV BORISLAV J4BOB FOURNET COMPANY2COMPUTALOG LIMITED2
Top patents by PatentIndex Score
37 records- 0198US11326437B2Universal bottomhole assembly node (UBHAN) providing communications to and from rotary steerable systems (RSS) and real time azimuthal resistivity imaging for geosteering and pressure while drilling (FWD) for well controlWELL RESOLUTIONS TECH·Filed 2020·Granted May 10, 2022·6 cites·21 claims
- 0298US10072490B1Boundary tracking control module for rotary steerable systemsWELL RESOLUTIONS TECH·Filed 2018·Granted Sep 11, 2018·12 cites·20 claims
- 0397US11098572B2Boundary tracking control module for rotary steerable systemsWELL RESOLUTIONS TECH·Filed 2020·Granted Aug 24, 2021·4 cites·20 claims
- 0496US6218662B1Downhole carbon dioxide gas analyzerWESTERN ATLAS INT INC·Filed 1998·Granted Apr 17, 2001·246 cites·23 claims
- 0595US6627873B2Down hole gas analyzer method and apparatusBAKER HUGHES INC·Filed 2001·Granted Sep 30, 2003·88 cites·26 claims
- 0690US11725462B1Electrical wet connection between LWD/MWD tools with longitudinal and rotational degree of freedom and pressure protection eliminating vibration and shock effectsWELL RESOLUTIONS TECH·Filed 2022·Granted Aug 15, 2023·2 cites·20 claims
- 0789US10648319B2Boundary tracking control module for rotary steerable systemsWELL RESOLUTIONS TECH·Filed 2018·Granted May 12, 2020·3 cites·18 claims
- 0885US10337322B2Modular resistivity sensor for downhole measurement while drillingWELL RESOLUTIONS TECH·Filed 2017·Granted Jul 2, 2019·3 cites·14 claims
- 0985US6484801B2Flexible joint for well logging instrumentsBAKER HUGHES INC·Filed 2001·Granted Nov 26, 2002·76 cites·24 claims
- 1083US9273517B2Downhole closed-loop geosteering methodologyTCHAKAROV BORISLAV J·Filed 2010·Granted Mar 1, 2016·13 cites·19 claims
- 1182US9638819B2Modular resistivity sensor for downhole measurement while drillingWELL RESOLUTIONS TECH·Filed 2014·Granted May 2, 2017·5 cites·19 claims
- 1281US11466565B2Modular resistivity sensor for downhole measurement while drillingWELL RESOLUTIONS TECH·Filed 2019·Granted Oct 11, 2022·1 cites·20 claims
- 1381US6903553B2Method and apparatus for a quadrupole transmitter for directionally sensitive induction toolBAKER HUGHES INC·Filed 2003·Granted Jun 7, 2005·37 cites·31 claims
- 1479US7411388B2Rotary position sensor and method for determining a position of a rotating bodyBAKER HUGHES INC·Filed 2005·Granted Aug 12, 2008·11 cites·19 claims
- 1577US9851465B2Apparatus and methods for communicating downhole dataWELL RESOLUTIONS TECH·Filed 2014·Granted Dec 26, 2017·5 cites·19 claims
- 1676US12228027B2Universal bottomhole assembly node (UBHAN)WELL RESOLUTIONS TECH·Filed 2022·Granted Feb 18, 2025·0 cites·17 claims
- 1774US2024418080A1Systems and apparatus for downhole communicationWELL RESOLUTIONS TECH·Filed 2024·Application pending·0 cites
- 1872US12078057B1Systems and apparatus for downhole communicationWELL RESOLUTIONS TECH·Filed 2023·Granted Sep 3, 2024·0 cites·10 claims
- 1972US7530407B2Rotary coring device and method for acquiring a sidewall core from an earth formationBAKER HUGHES INC·Filed 2005·Granted May 12, 2009·16 cites·18 claims
- 2068US6002643APulserCOMPUTALOG LTD·Filed 1997·Granted Dec 14, 1999·60 cites·17 claims
- 2167US7673704B2Variable positioning deep cutting rotary coring tool with expandable bitBAKER HUGHES INC·Filed 2006·Granted Mar 9, 2010·9 cites·20 claims
- 2267US5348091ASelf-adjusting centralizerBOB FOURNET COMPANY·Filed 1993·Granted Sep 20, 1994·47 cites·19 claims
- 2365US7921913B2Vacuum insulated dewar flaskBAKER HUGHES INC·Filed 2005·Granted Apr 12, 2011·9 cites·23 claims
- 2464US8570045B2Drilling system for making LWD measurements ahead of the bitTCHAKAROV BORISLAV J·Filed 2009·Granted Oct 29, 2013·9 cites·43 claims
- 2560US6937022B2Method and apparatus for a quadrupole transmitter for directionally sensitive induction toolBAKER HUGHES INC·Filed 2003·Granted Aug 30, 2005·19 cites·28 claims
- 2660US5660238ASwitch actuator and flow restrictor pilot valve assembly for measurement while drilling toolsBOB FOURNET COMPANY·Filed 1996·Granted Aug 26, 1997·43 cites·11 claims
- 2759US8171990B2In-situ formation strength testing with coringTCHAKAROV BORISLAV J·Filed 2008·Granted May 8, 2012·7 cites·20 claims
- 2859US7716978B2High resolution capacitance high conductivity fluid sensorBAKER HUGHES INC·Filed 2007·Granted May 18, 2010·5 cites·21 claims
- 2956US8141419B2In-situ formation strength testingTCHAKAROV BORISLAV J·Filed 2008·Granted Mar 27, 2012·6 cites·15 claims
- 3056US5934378ACentralizers for a downhole toolCOMPUTALOG LIMITED·Filed 1997·Granted Aug 10, 1999·37 cites·11 claims
- 3154US7762328B2Formation testing and sampling tool including a coring deviceBAKER HUGHES CORP·Filed 2006·Granted Jul 27, 2010·3 cites·18 claims
- 3249US2021079782A1Autonomous logging-while-drilling assemblyWELL RESOLUTIONS TECH·Filed 2020·Application pending·0 cites
- 3345US5836388AFlexible joint for downhole toolsCOMPUTALOG LIMITED·Filed 1997·Granted Nov 17, 1998·22 cites·15 claims
- 3441US7649357B2Side entry leak protection for downhole toolsBAKER HUGHES INC·Filed 2006·Granted Jan 19, 2010·0 cites·25 claims
- 3539US7373994B2Self cleaning coring bitBAKER HUGHES INC·Filed 2004·Granted May 20, 2008·6 cites·29 claims
- 3637US2009164128A1In-situ formation strength testing with formation samplingBAKER HUGHES INC·Filed 2008·Application pending·0 cites
- 3736US2005030036A1Side entry leak protection for sondesBAKER HUGHES INC·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →