Inventor
VAN SLYKE DONALD C
US26 patents
⚠️ This page may combine multiple inventors who share the name “VAN SLYKE DONALD C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
UNION OIL CO
23 patentsUS5723423AMar 3, 1998
Solvent soaps and methods employing same
UNION OIL CO195 citations99
US6017854AJan 25, 2000
Simplified mud systems
UNION OIL CO110 citations98
US5333698AAug 2, 1994
White mineral oil-based drilling fluid
UNION OIL CO121 citations98
US5634984AJun 3, 1997
Method for cleaning an oil-coated substrate
UNION OIL CO94 citations97
US6255256B1Jul 3, 2001
Non-toxic, inexpensive synthetic drilling fluid
UNION OIL CO32 citations96
US6110874AAug 29, 2000
Non-toxic, inexpensive synthetic drilling fluid
UNION OIL CO45 citations96
US6107255AAug 22, 2000
Non-toxic inexpensive synthetic drilling fluid
UNION OIL CO39 citations96
US6034037AMar 7, 2000
Non-toxic inexpensive synthetic drilling fluid
UNION OIL CO68 citations96
US5958845ASep 28, 1999
Non-toxic, inexpensive synthetic drilling fluid
UNION OIL CO54 citations96
US5788781AAug 4, 1998
Method for cleaning an oil-coated substrate
UNION OIL CO69 citations96
US5780407AJul 14, 1998
Solvent soaps and methods employing same
UNION OIL CO56 citations96
US5635457AJun 3, 1997
Non-toxic, inexpensive synthetic drilling fluid
UNION OIL CO97 citations96
US5234577AAug 10, 1993
Separation of oils from solids
UNION OIL CO72 citations96
US5156686AOct 20, 1992
Separation of oils from solids
UNION OIL CO64 citations96
US6159907ADec 12, 2000
Method for treating a well employing a non-toxic, inexpensive fluid
UNION OIL CO25 citations92
US5710111AJan 20, 1998
Solids-free wellbore fluid
UNION OIL CO18 citations92
US5629270AMay 13, 1997
Thermally stable oil-base drilling fluid
UNION OIL CO19 citations92
US5556832ASep 17, 1996
Solids-free, essentially all-oil wellbore fluid
UNION OIL CO31 citations92
US5215596AJun 1, 1993
Separation of oils from solids
UNION OIL CO45 citations92
US5213625AMay 25, 1993
Separation of oils from solids
UNION OIL CO30 citations92
US5020595AJun 4, 1991
Carbon dioxide-steam co-injection tertiary oil recovery process
UNION OIL CO17 citations74
US5700763ADec 23, 1997
Thermally stable oil-based drilling fluid
UNION OIL CO3 citations63
US5696058ADec 9, 1997
Solids-free, essentially all-oil wellbore fluid
UNION OIL CO2 citations63