Inventor · disambiguated record
John H. Duerksen
Also filed as: DUERKSEN JOHN H
11 granted patents·869 citations·filing 1983–1991
93Inventor score
Top patents by PatentIndex Score
11 records- 0197US5145003AMethod for in-situ heated annulus refining processCHEVRON RES & TECH·Filed 1991·Granted Sep 8, 1992·297 cites·24 claims
- 0296US5054551AIn-situ heated annulus refining processCHEVRON RES & TECH·Filed 1990·Granted Oct 8, 1991·256 cites·20 claims
- 0385US4488598ASteam, noncondensable gas and foam for steam and distillation drive _in subsurface petroleum productionCHEVRON RES·Filed 1983·Granted Dec 18, 1984·67 cites·3 claims
- 0477US4607700AAlpha-olefin sulfonate dimer surfactant cyclic steam stimulation process for recovering hydrocarbons from a subterranean formationCHEVRON RES·Filed 1984·Granted Aug 26, 1986·47 cites·31 claims
- 0574US4556107ASteam injection including alpha-olephin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formationCHEVRON RES·Filed 1983·Granted Dec 3, 1985·42 cites·29 claims
- 0669US4576232ANon-condensible gas injection including alpha-olefin sulfonate dimer surfactant additives and a process of stimulating hydrocarbon recovery from a subterranean formationCHEVRON RES·Filed 1983·Granted Mar 18, 1986·25 cites·26 claims
- 0766US5131471ASingle well injection and production systemCHEVRON RES & TECH·Filed 1990·Granted Jul 21, 1992·50 cites·11 claims
- 0859US5014787ASingle well injection and production systemCHEVRON RES·Filed 1989·Granted May 14, 1991·29 cites·7 claims
- 0952US4572294ANon-condensible gas injection including alpha-olefin sulfonate surfactant additivesCHEVRON RES·Filed 1984·Granted Feb 25, 1986·19 cites·23 claims
- 1049US5024275AMethod of recovering hydrocarbons using single well injection/production systemCHEVRON RES·Filed 1989·Granted Jun 18, 1991·22 cites·12 claims
- 1138US5123485AMethod of flowing viscous hydrocarbons in a single well injection/production systemCHEVRON RES & TECH·Filed 1989·Granted Jun 23, 1992·15 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →