Inventor · disambiguated record
Dennis K. Clapper
Also filed as: CLAPPER DENNIS · CLAPPER DENNIS K
32 granted patents·5 pending applications·1,008 citations·filing 1984–2021
98Inventor score
Files withBAKER HUGHES INC22MILCHEM INC4BAKER HUGHES A GE CO LLC2BAKER HUGHES OILFIELD OPERATIONS LLC2OTTO MICHAEL J2
Top patents by PatentIndex Score
37 records- 0196US8627902B2Estimating drill cutting origination depth using marking agentsHAMMER AARON C·Filed 2011·Granted Jan 14, 2014·43 cites·20 claims
- 0293US6790812B2Acid soluble, high fluid loss pill for lost circulationBAKER HUGHES INC·Filed 2001·Granted Sep 14, 2004·129 cites·94 claims
- 0391US6703351B2Water-based drilling fluids using latex additivesBAKER HUGHES INC·Filed 2001·Granted Mar 9, 2004·78 cites·33 claims
- 0491US6635604B1Low molecular weight water soluble organic compounds as crystallization point suppressants in brinesBAKER HUGHES INC·Filed 2000·Granted Oct 21, 2003·59 cites·81 claims
- 0590US7271131B2Fluid loss control and sealing agent for drilling depleted sand formationsBAKER HUGHES INC·Filed 2003·Granted Sep 18, 2007·61 cites·12 claims
- 0687US6204224B1Polyalkyl methacrylate copolymers for rheological modification and filtration control for ester and synthetic based drilling fluidsBAKER HUGHES INC·Filed 1999·Granted Mar 20, 2001·90 cites·21 claims
- 0787US4830765AModified non-polluting liquid phase shale swelling inhibition drilling fluid and method of using sameBAKER HUGHES INC·Filed 1987·Granted May 16, 1989·51 cites·1 claims
- 0885US4963273AModified non-polluting liquid phase shale swelling inhibition drilling fluid and method of using sameBAKER HUGHES INC·Filed 1988·Granted Oct 16, 1990·46 cites·2 claims
- 0984US5057234ANon-hydrocarbon invert emulsions for use in well drilling operationsBAKER HUGHES INC·Filed 1990·Granted Oct 15, 1991·49 cites·9 claims
- 1084US4575428AInvert emulsion drilling fluid comprising oligamide compositionMILCHEM INC·Filed 1984·Granted Mar 11, 1986·47 cites·16 claims
- 1183US4941981AModified non-polluting liquid phase shale swelling inhibition drilling fluidBAKER HUGHES INC·Filed 1988·Granted Jul 17, 1990·52 cites·1 claims
- 1282US5141920AHydrocarbon invert emulsions for use in well drilling operationsBAKER HUGHES INC·Filed 1991·Granted Aug 25, 1992·43 cites·2 claims
- 1378US7651980B2High temperature filtration control using water based drilling fluid systems comprising water soluble polymersBAKER HUGHES INC·Filed 2006·Granted Jan 26, 2010·9 cites·10 claims
- 1478US6080704AGlycols as gas hydrate inhibitors in drilling, drill-in, and completion fluidsFiled 1997·Granted Jun 27, 2000·52 cites·23 claims
- 1576US8716197B2Lubricating compositions for use with downhole fluidsOTTO MICHAEL J·Filed 2012·Granted May 6, 2014·1 cites·17 claims
- 1676US6194216B1Method for determination of amine-based additives in drilling fluid filtratesBAKER HUGHES INC·Filed 2000·Granted Feb 27, 2001·17 cites·18 claims
- 1772US5837655APurified paraffins as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluidsFiled 1996·Granted Nov 17, 1998·62 cites·25 claims
- 1871US8053394B2Drilling fluids with redispersible polymer powdersBAKER HUGHES INC·Filed 2010·Granted Nov 8, 2011·3 cites·11 claims
- 1971US4663076AInvert emulsion drilling fluid comprising oligamide compositionMILCHEM INC·Filed 1985·Granted May 5, 1987·24 cites·8 claims
- 2068US6165945ABlends of glycol derivatives as gas hydrate inhibitors in water base drilling, drill-in, and completion fluidsBAKER HUGHES INC·Filed 1998·Granted Dec 26, 2000·27 cites·7 claims
- 2168US5919738AFluids for use in drilling and completion operations comprising water insoluble colloidal complexes for improved rheology and filtration controlBAKER HUGHES INC·Filed 1997·Granted Jul 6, 1999·26 cites·55 claims
- 2267US7393813B2Water-based drilling fluids using latex additivesBAKER HUGHES INC·Filed 2003·Granted Jul 1, 2008·8 cites·20 claims
- 2366US7749943B2Method and drilling fluid systems and lost circulation pills adapted to maintain the particle size distribution of component latex particles before and after freezing of the latex particles in the presence of waterBAKER HUGHES INC·Filed 2005·Granted Jul 6, 2010·2 cites·56 claims
- 2465US10221636B2Polymer-modified asphalt for drilling fluid applicationsBAKER HUGHES INC·Filed 2017·Granted Mar 5, 2019·2 cites·16 claims
- 2558US2019225856A1Electrically conductive oil-based fluidsBAKER HUGHES A GE CO LLC·Filed 2019·Application pending·0 cites
- 2657US4735732AFiltration control additive for invert emulsion drilling fluids and method of preparationMILCHEM INC·Filed 1985·Granted Apr 5, 1988·14 cites·1 claims
- 2756US11499081B2Stabilized water-dispersible latex additives for drilling fluidsBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2021·Granted Nov 15, 2022·0 cites·17 claims
- 2853US10400152B2Liquid loaded powders made from hybrid calcium carbonate for oil and gas drilling fluidsBAKER HUGHES INC·Filed 2016·Granted Sep 3, 2019·0 cites·18 claims
- 2952US10280356B2Electrically conductive oil-based fluidsBAKER HUGHES INC·Filed 2015·Granted May 7, 2019·0 cites·9 claims
- 3048US8273689B2Method for lubricating and/or reducing corrosion of drilling equipmentOTTO MICHAEL J·Filed 2004·Granted Sep 25, 2012·1 cites·29 claims
- 3148US4728444AFiltration control additive for invert emulsion drilling fluids and method of preparationMILCHEM INC·Filed 1986·Granted Mar 1, 1988·12 cites·1 claims
- 3247US11155748B2Star polymers and methods of use for downhole fluidsBAKER HUGHES OILFIELD OPERATIONS LLC·Filed 2019·Granted Oct 26, 2021·0 cites·18 claims
- 3346US10858567B2Invert emulsions having a non-aqueous based internal phase containing dissolved saltsOSGOUEI REZA ETTEHADI·Filed 2018·Granted Dec 8, 2020·0 cites·22 claims
- 3442US2019359878A1Additives useful for drilling fluidsBAKER HUGHES A GE CO LLC·Filed 2019·Application pending·0 cites
- 3542US2019185728A1Downhole fluids having balanced rheological properties, methods of manufacture, and applications thereofCLAPPER DENNIS·Filed 2017·Application pending·0 cites
- 3639US2006270562A1Drilling fluids with redispersible polymer powdersBAKER HUGHES INC·Filed 2006·Application pending·0 cites
- 3731US2016326423A1Downhole fluid compositions and methods of using carbon black particlesBAKER HUGHES INC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →