Inventor · disambiguated record
Duy T. Nguyen
Also filed as: LING TIEN-FENG · NGUYEN DUY · NGUYEN DUY T · NGUYEN DUY TAM
59 granted patents·28 pending applications·463 citations·filing 1991–2025
98Inventor score
Top patents by PatentIndex Score
87 records- 0194US6365101B1Methods of preventing scaling involving inorganic compositions, and compositions thereforHERCULES INCOPORATED·Filed 2000·Granted Apr 2, 2002·60 cites·107 claims
- 0292US6333005B1Methods of preventing scaling involving inorganic compositions in combination with copolymers of maleic anhydride and isobutylene, and compositions thereforHERCULES INC·Filed 2000·Granted Dec 25, 2001·58 cites·28 claims
- 0389US8950494B2Foamers for downhole injectionNGUYEN DUY T·Filed 2010·Granted Feb 10, 2015·13 cites·16 claims
- 0488US11168244B2Compositions for enhanced oil recoveryCHAMPIONX USA INC·Filed 2017·Granted Nov 9, 2021·9 cites·9 claims
- 0588US10767104B2Compositions for enhanced oil recoveryECOLAB USA INC·Filed 2018·Granted Sep 8, 2020·6 cites·7 claims
- 0687US8551925B2Imidazoline-based heterocyclic foamers for downhole injectionNGUYEN DUY T·Filed 2007·Granted Oct 8, 2013·15 cites·7 claims
- 0786US9701888B2Microemulsion flowback aid composition and method of using sameNGUYEN DUY T·Filed 2012·Granted Jul 11, 2017·6 cites·15 claims
- 0884US10647907B2Compositions for enhanced oil recoveryECOLAB USA INC·Filed 2018·Granted May 12, 2020·4 cites·19 claims
- 0984US8746341B2Quaternary foamers for downhole injectionNGUYEN DUY T·Filed 2011·Granted Jun 10, 2014·7 cites·21 claims
- 1083US9862882B2Foam assisted liquid removal using alcohol ether sulfonatesECOLAB USA INC·Filed 2016·Granted Jan 9, 2018·3 cites·21 claims
- 1182US11312895B2Loaded, sealed nanotubes for oil recoveryTHE ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND·Filed 2020·Granted Apr 26, 2022·1 cites·20 claims
- 1281US11203709B2Compositions for enhanced oil recoveryCHAMPIONX USA INC·Filed 2017·Granted Dec 21, 2021·2 cites·8 claims
- 1381US9353261B2Demulsifier composition and method of using sameNGUYEN DUY T·Filed 2012·Granted May 31, 2016·6 cites·18 claims
- 1480US11999900B2Surface-modified nanoparticle compositions and related applications in subterranean hydrocarbon recoveryCHAMPIONX LLC·Filed 2020·Granted Jun 4, 2024·1 cites·17 claims
- 1580US7217340B2Chemical softening composition for paper productsHUNTSMAN SPEC CHEM CORP·Filed 2005·Granted May 15, 2007·3 cites·10 claims
- 1680US2025340775A1Compositions and methods for improving thermal and brine stability of nanoparticlesCHAMPIONX LLC·Filed 2025·Application pending·0 cites
- 1779US8394872B2Method of reducing the viscosity of hydrocarbon fluidsFAUST JR MARCUS D·Filed 2009·Granted Mar 12, 2013·10 cites·19 claims
- 1877US7741264B2Surface active polymers as detergentsHUNTSMAN PETROCHEMICAL LLC·Filed 2005·Granted Jun 22, 2010·5 cites·8 claims
- 1977US5723021AMethod for inhibiting deposition in pulp and papermaking systems using a composition comprising of polyvinyl alcohol, gelatin and cationic polymerBETZDEARBORN INC·Filed 1996·Granted Mar 3, 1998·19 cites·21 claims
- 2075US6143800ACompositions and method for inhibiting organic contaminant deposition in pulp and papermaking systemsHERCULES INC·Filed 1998·Granted Nov 7, 2000·20 cites·12 claims
- 2175US2025011638A1Silica substrates for slow release asphaltene control chemical squeeze treatmentsCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 2274US12384958B2Compositions and methods for improving thermal and brine stability of nanoparticlesCHAMPIONX LLC·Filed 2023·Granted Aug 12, 2025·0 cites·19 claims
- 2374US6355214B1Methods of preventing scaling involving inorganic compositions, and inorganic compositions thereforHERCULES INC·Filed 1999·Granted Mar 12, 2002·27 cites·105 claims
- 2473US9631133B2Foamers for downhole injectionNALCO CO·Filed 2015·Granted Apr 25, 2017·1 cites·8 claims
- 2572US2024360323A1Calcium based nanoparticle corrosion inhibitor additivesCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 2671US11912925B2Compositions for enhanced oil recoveryCHAMPIONX USA INC·Filed 2021·Granted Feb 27, 2024·0 cites·15 claims
- 2770US12129428B2Silica substrates for slow release asphaltene control chemical squeeze treatmentsCHAMPIONX USA INC·Filed 2021·Granted Oct 29, 2024·0 cites·18 claims
- 2870US8911615B2Recovery and separation of crude oil and water from emulsionsRANEY OLINA G·Filed 2010·Granted Dec 16, 2014·4 cites·8 claims
- 2970US7012058B2Chemical softening compositions for paper productsHUNTSMAN SPEC CHEM CORP·Filed 2003·Granted Mar 14, 2006·3 cites·4 claims
- 3070US5885419AMethods for inhibiting organic contaminant deposition in pulp and papermaking systemsBETZDEARBORN INC·Filed 1997·Granted Mar 23, 1999·13 cites·5 claims
- 3168US7923416B2Method of reducing the viscosity of hydrocarbon fluidsNALCO CO·Filed 2008·Granted Apr 12, 2011·2 cites·16 claims
- 3268US2025034336A1Microgels, methods of making microgels and methods of using microgelsUNIV FLORIDA·Filed 2022·Application pending·0 cites
- 3368US2024271030A1Surface-modified nanoparticle compositions and related applications in subterranean hydrocarbon recoveryCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 3467US12509972B2Synergistic effects of nanoparticles and surfactants for gas lift flow improvementCHAMPIONX LLC·Filed 2024·Granted Dec 30, 2025·0 cites·11 claims
- 3567US2025207013A1Treatment compositions including alumina particulateCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 3666US12173229B2Halloysite nanotubes for slow release asphaltene control chemical squeeze treatmentsCHAMPIONX USA INC·Filed 2021·Granted Dec 24, 2024·0 cites·20 claims
- 3766US10717875B2Comb-like polyetheralkanolamines in inks and coatingsHUNTSMAN PETROCHEMICAL LLC·Filed 2016·Granted Jul 21, 2020·0 cites·12 claims
- 3864US10400157B2Surfactant assisted oil recovery using alcohol ether sulfonates and cationic surfactantsECOLAB USA INC·Filed 2017·Granted Sep 3, 2019·0 cites·20 claims
- 3964US8399386B2Foamers for downhole injectionNGUYEN DUY T·Filed 2009·Granted Mar 19, 2013·1 cites·15 claims
- 4064US5562862APolybutene-based foam control composition for aqueous systemsBETZ LABORATORIES·Filed 1994·Granted Oct 8, 1996·27 cites·10 claims
- 4164US2024218234A1Paraffin wax dispersantCHAMPIONX LLC·Filed 2023·Application pending·0 cites
- 4263US9567482B2Comb-like polyetheralkanolamines in inks and coatingsHUNTSMAN PETROCHEMICAL LLC·Filed 2015·Granted Feb 14, 2017·0 cites·16 claims
- 4363US5229033APolybutene based foam control compositions for aqueous systemsBETZ PAPERCHEM INC·Filed 1991·Granted Jul 20, 1993·26 cites·5 claims
- 4463US2024327697A1Aluminium nanoparticle corrosion inhibitor additivesCHAMPIONX LLC·Filed 2024·Application pending·0 cites
- 4563US2024199955A1Corrosion inhibitor having silica nanoparticlesCHAMPIONX LLC·Filed 2023·Application pending·0 cites
- 4663US2025243369A1Treatment compositions including functionalized particulateCHAMPIONX LLC·Filed 2025·Application pending·0 cites
- 4763US2007169904A1Chemical softening composition for paper productsHUNTSMAN SPEC CHEM CORP·Filed 2007·Application pending·0 cites
- 4861US10041007B2Demulsifier composition and method of using sameECOLAB USA INC·Filed 2016·Granted Aug 7, 2018·0 cites·16 claims
- 4961US9315715B2Method of reducing the viscosity of hydrocarbonsFAUST JR MARCUS D·Filed 2009·Granted Apr 19, 2016·2 cites·20 claims
- 5060US9926486B2Surfactant assisted oil recovery using alcohol ether sulfonates and cationic surfactantsECOLAB USA INC·Filed 2014·Granted Mar 27, 2018·0 cites·20 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →