Inventor

KOEPKE JEFFERY W

US14 patents

Patents

14 patents

US5472049ADec 5, 1995

Hydraulic fracturing of shallow wells

UNION OIL CO209 citations96

US4777157AOct 11, 1988

Hydrocracking catalyst

UNION OIL CO34 citations92

US4469905ASep 4, 1984

Process for producing and extracting C2 to C6 alcohols

UNION OIL CO44 citations90

US4847018AJul 11, 1989

Process for producing petroleum sulfonates

UNION OIL CO29 citations89

US4414137ANov 8, 1983

Catalytically active amorphous silica

UNION OIL CO19 citations81

US4871445AOct 3, 1989

Hydrocarbon conversion

UNION OIL CO10 citations74

US4883601ANov 28, 1989

Process for purifying an aqueous, hydrogen sulfide-scrubbing solution

UNION OIL CO13 citations73

US4618738AOct 21, 1986

Hydrocarbon conversion process with catalytically active amorphous silica

UNION OIL CO7 citations73

US4548705AOct 22, 1985

Hydrocracking with catalytically active amorphous silica and zeolites

UNION OIL CO15 citations73

US4530400AJul 23, 1985

Process for enhanced oil recovery employing synthetic sulfonates and petroleum sulfonate blends

UNION OIL CO8 citations73

US4513158AApr 23, 1985

Polymerization and oligomerization with catalytically active amorphous silica

UNION OIL CO9 citations73

US4481102ANov 6, 1984

Cracking with catalytically active amorphous silica

UNION OIL CO11 citations73

US4446036AMay 1, 1984

Process for enhanced oil recovery employing petroleum sulfonate blends

UNION OIL CO10 citations71

US4501925AFeb 26, 1985

Chemical reaction promoted by catalytically active amorphous silica

UNION OIL CO6 citations62