Inventor · disambiguated record
Khanh Duong
Also filed as: DUONG KHANH · DUONG KHANH A · DUONG KHANH ANH
18 granted patents·7 pending applications·162 citations·filing 2004–2024
94Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP6ABBOTT CARDIOVASCULAR SYSTEMS INC3DUONG KHANH ANH3VILLAREAL STEVEN G3DUONG KHANH A2
Top patents by PatentIndex Score
25 records- 0197US7367394B2Formation evaluation while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted May 6, 2008·71 cites·37 claims
- 0283US8336622B2Formation evaluation while drillingVILLAREAL STEVEN G·Filed 2011·Granted Dec 25, 2012·5 cites·21 claims
- 0382US10113383B2Positive retention lock ring for tubing hangerVETCO GRAY INC·Filed 2014·Granted Oct 30, 2018·7 cites·19 claims
- 0481US8631878B2Wellhead annulus seal assembly and method of using sameDUONG KHANH A·Filed 2010·Granted Jan 21, 2014·9 cites·9 claims
- 0580US8668021B2Energizing ring nose profile and seal entranceDUONG KHANH A·Filed 2010·Granted Mar 11, 2014·7 cites·16 claims
- 0677US8056625B2Formation evaluation while drillingVILLAREAL STEVEN G·Filed 2009·Granted Nov 15, 2011·10 cites·14 claims
- 0776US9364361B2Striped sheaths for medical devicesABBOTT CARDIOVASCULAR SYSTEMS·Filed 2014·Granted Jun 14, 2016·6 cites·19 claims
- 0873US8636064B2Formation evaluation while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2012·Granted Jan 28, 2014·2 cites·20 claims
- 0973US8118097B2Formation evaluation while drillingVILLAREAL STEVEN G·Filed 2009·Granted Feb 21, 2012·8 cites·37 claims
- 1067US9163739B2High temperature coating resistant to damage from decompressionHUNTER RICK C·Filed 2011·Granted Oct 20, 2015·2 cites·28 claims
- 1165US8720586B2Hybrid sealDUONG KHANH ANH·Filed 2011·Granted May 13, 2014·3 cites·13 claims
- 1264US7367392B2Wellbore apparatus with sliding shieldsSCHLUMBERGER TECHNOLOGY CORP·Filed 2004·Granted May 6, 2008·27 cites·43 claims
- 1363US10711603B2Formation evaluation while drillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2018·Granted Jul 14, 2020·0 cites·16 claims
- 1463US2024350136A1Vessel closure device with improved safety and tract hemostasisABBOTT CARDIOVASCULAR SYSTEMS INC·Filed 2024·Application pending·0 cites
- 1562US8851185B2Dual metal seal systemDUONG KHANH ANH·Filed 2012·Granted Oct 7, 2014·2 cites·11 claims
- 1661US8870186B2Seal assembly for a casing hangerHOANG CHAU·Filed 2012·Granted Oct 28, 2014·3 cites·12 claims
- 1754US10449074B2Striped sheaths for medical devicesABBOTT CARDIOVASCULAR SYSTEMS INC·Filed 2016·Granted Oct 22, 2019·0 cites·10 claims
- 1854US10433996B2Striped sheaths for medical devicesABBOTT CARDIOVASCULAR SYSTEMS INC·Filed 2016·Granted Oct 8, 2019·0 cites·16 claims
- 1953US2014116783A1Formation Evaluation While DrillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2014·Application pending·0 cites
- 2052US2025320568A1Multiplex biosensor for rapid point-of-care diagnosticsHEMEMICS BIOTECHNOLOGIES INC·Filed 2023·Application pending·0 cites
- 2147US2015267819A1Seal Element Having Contoured V-SpringVETCO GRAY INC·Filed 2014·Application pending·0 cites
- 2242US2008087470A1Formation Evaluation While DrillingSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Application pending·0 cites
- 2338US2016326869A1Piston Design for Downhole PulserGE ENERGY OILFIELD TECH INC·Filed 2016·Application pending·0 cites
- 2438US2013299193A1Positive retention lock ring for tubing hangerDUONG KHANH ANH·Filed 2012·Application pending·0 cites
- 2532US10594068B2Retention of electrical spring contacts for wet connection of down-hole tool componentsPRIME DOWNHOLE MFG LLC·Filed 2015·Granted Mar 17, 2020·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →