Inventor · disambiguated record
Donald C. Van Slyke
Also filed as: VAN SLYKE DONALD C · Van Slyke Donald Curtis
36 granted patents·2 pending applications·1,316 citations·filing 1989–2021
98Inventor score
Files withUNION OIL CO23HALLIBURTON ENERGY SERVICES INC9CHEVRON USA INC3VAN SLYKE DONALD C2SHELL OIL CO1
Top patents by PatentIndex Score
38 records- 0197US5723423ASolvent soaps and methods employing sameUNION OIL CO·Filed 1996·Granted Mar 3, 1998·195 cites·38 claims
- 0293US6017854ASimplified mud systemsUNION OIL CO·Filed 1997·Granted Jan 25, 2000·110 cites·28 claims
- 0393US5234577ASeparation of oils from solidsUNION OIL CO·Filed 1992·Granted Aug 10, 1993·72 cites·18 claims
- 0492US5156686ASeparation of oils from solidsUNION OIL CO·Filed 1990·Granted Oct 20, 1992·64 cites·21 claims
- 0591US5635457ANon-toxic, inexpensive synthetic drilling fluidUNION OIL CO·Filed 1995·Granted Jun 3, 1997·97 cites·170 claims
- 0691US5634984AMethod for cleaning an oil-coated substrateUNION OIL CO·Filed 1994·Granted Jun 3, 1997·94 cites·78 claims
- 0790US5333698AWhite mineral oil-based drilling fluidUNION OIL CO·Filed 1993·Granted Aug 2, 1994·121 cites·100 claims
- 0889US5958845ANon-toxic, inexpensive synthetic drilling fluidUNION OIL CO·Filed 1996·Granted Sep 28, 1999·54 cites·292 claims
- 0988US6034037ANon-toxic inexpensive synthetic drilling fluidUNION OIL CO·Filed 1999·Granted Mar 7, 2000·68 cites·36 claims
- 1087US10717915B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Jul 21, 2020·1 cites·9 claims
- 1185US10557073B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Feb 11, 2020·2 cites·21 claims
- 1285US10557072B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Feb 11, 2020·2 cites·8 claims
- 1385US10435610B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Oct 8, 2019·2 cites·25 claims
- 1485US5215596ASeparation of oils from solidsUNION OIL CO·Filed 1992·Granted Jun 1, 1993·45 cites·19 claims
- 1584US6107255ANon-toxic inexpensive synthetic drilling fluidUNION OIL CO·Filed 1998·Granted Aug 22, 2000·39 cites·127 claims
- 1682US6110874ANon-toxic, inexpensive synthetic drilling fluidUNION OIL CO·Filed 1998·Granted Aug 29, 2000·45 cites·128 claims
- 1782US5788781AMethod for cleaning an oil-coated substrateUNION OIL CO·Filed 1997·Granted Aug 4, 1998·69 cites·27 claims
- 1881US6255256B1Non-toxic, inexpensive synthetic drilling fluidUNION OIL CO·Filed 1998·Granted Jul 3, 2001·32 cites·19 claims
- 1979US5780407ASolvent soaps and methods employing sameUNION OIL CO·Filed 1997·Granted Jul 14, 1998·56 cites·34 claims
- 2077US6159907AMethod for treating a well employing a non-toxic, inexpensive fluidUNION OIL CO·Filed 1998·Granted Dec 12, 2000·25 cites·146 claims
- 2177US5556832ASolids-free, essentially all-oil wellbore fluidUNION OIL CO·Filed 1992·Granted Sep 17, 1996·31 cites·16 claims
- 2276US10316237B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Jun 11, 2019·2 cites·12 claims
- 2374US11319475B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted May 3, 2022·0 cites·14 claims
- 2474US5213625ASeparation of oils from solidsUNION OIL CO·Filed 1992·Granted May 25, 1993·30 cites·20 claims
- 2572US11091683B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Aug 17, 2021·0 cites·9 claims
- 2670US5629270AThermally stable oil-base drilling fluidUNION OIL CO·Filed 1994·Granted May 13, 1997·19 cites·8 claims
- 2767US5710111ASolids-free wellbore fluidUNION OIL CO·Filed 1994·Granted Jan 20, 1998·18 cites·17 claims
- 2866US10208540B2Non-toxic, inexpensive, low viscosity mineral oil based drilling fluidCHEVRON USA INC·Filed 2015·Granted Feb 19, 2019·1 cites·21 claims
- 2964US11326086B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted May 10, 2022·0 cites·13 claims
- 3063US11091685B2Drilling fluid for downhole electrocrushing drillingHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Aug 17, 2021·0 cites·19 claims
- 3157US8222018B2Gordonia sihwensis strain and uses thereofVAN SLYKE DONALD C·Filed 2008·Granted Jul 17, 2012·0 cites·5 claims
- 3255US11739257B2Hydraulic fracturing fluidSHELL OIL CO·Filed 2021·Granted Aug 29, 2023·0 cites·3 claims
- 3355US10060189B2Hexadecene synthetic drilling fluid with improved environmental propertiesCHEVRON USA INC·Filed 2015·Granted Aug 28, 2018·0 cites·24 claims
- 3448US5020595ACarbon dioxide-steam co-injection tertiary oil recovery processUNION OIL CO·Filed 1989·Granted Jun 4, 1991·17 cites·32 claims
- 3543US2011269220A1Gordonia sihwensis and uses thereofCHEVRON USA INC·Filed 2011·Application pending·0 cites
- 3637US5700763AThermally stable oil-based drilling fluidUNION OIL CO·Filed 1996·Granted Dec 23, 1997·3 cites·20 claims
- 3735US5696058ASolids-free, essentially all-oil wellbore fluidUNION OIL CO·Filed 1995·Granted Dec 9, 1997·2 cites·14 claims
- 3830US2015322326A1Pulse power drilling fluid and methods of useVAN SLYKE DONALD C·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →