Inventor · disambiguated record
Stephan Von Tapavicza
Also filed as: VON TAPAVICZA STEPHAN
34 granted patents·1 pending application·2,254 citations·filing 1988–2005
98Inventor score
Files withHENKEL KGAA26COGNIS DEUTSCHLAND GMBH5ELF ANTAR FRANCE1EMERY OLEOCHEMICALS GMBH1MUELLER HEINZ1
Top patents by PatentIndex Score
35 records- 0196US4964615ACompositions for freeing jammed drill pipesHENKEL KGAA·Filed 1988·Granted Oct 23, 1990·129 cites·15 claims
- 0295US5403822AEsters of carboxylic acids of medium chain-length as a component of the oil phase in invert drilling mudsHENKEL KGAA·Filed 1993·Granted Apr 4, 1995·150 cites·30 claims
- 0395US5254531AOleophilic basic amine compounds as an additive for invert drilling mudsHENKEL KGAA·Filed 1992·Granted Oct 19, 1993·118 cites·25 claims
- 0495US5252554ADrilling fluids and muds containing selected ester oilsHENKEL KGAA·Filed 1992·Granted Oct 12, 1993·157 cites·38 claims
- 0594US6165946AProcess for the facilitated waste disposal of working substances based on water-in-oil invert emulsionsHENKEL KGAA·Filed 1997·Granted Dec 26, 2000·129 cites·70 claims
- 0693US6806235B1Lubricants for drilling fluidsCOGNIS DEUTSCHLAND GMBH·Filed 1999·Granted Oct 19, 2004·113 cites·12 claims
- 0793US5846601AUse of selected polyvinyl acetate dispersions for the surface stabilization of sand and/or soilHENKEL KGAA·Filed 1994·Granted Dec 8, 1998·67 cites·31 claims
- 0893US5663122AMineral additives for setting and/or controlling the rheological properties and gel structure of aqueous liquid phases and the use of such additivesHENKEL KGAA·Filed 1993·Granted Sep 2, 1997·56 cites·18 claims
- 0993US5441927AFluid drill-hole treatment agents based on polycarboxylic acid diestersHENKEL KGAA·Filed 1994·Granted Aug 15, 1995·93 cites·34 claims
- 1093US5318954AUse of selected ester oils of low carboxylic acids in drilling fluidsHENKEL KGAA·Filed 1993·Granted Jun 7, 1994·106 cites·30 claims
- 1193US5318956AUse of selected ester oils in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptabilityHENKEL KGAA·Filed 1993·Granted Jun 7, 1994·94 cites·24 claims
- 1293US5232910AUse of selected ester oils in drilling fluids and mudsHENKEL KGAA·Filed 1991·Granted Aug 3, 1993·126 cites·41 claims
- 1392US5869434AFree-flowing borehole servicing preparations containing linear α-olefins, more patricularly corresponding drilling fluidsHENKEL KGAA·Filed 1995·Granted Feb 9, 1999·112 cites·22 claims
- 1492US5106516AMonocarboxylic acid methylesters in invert drilling mudsHENKEL KGAA·Filed 1990·Granted Apr 21, 1992·82 cites·18 claims
- 1591US6022833AMulticomponent mixtures for use in geological explorationHENKEL KGAA·Filed 1997·Granted Feb 8, 2000·96 cites·20 claims
- 1690USRE36066EUse of selected ester oils in drilling fluids and mudsHENKEL KGAA·Filed 1995·Granted Jan 26, 1999·101 cites·21 claims
- 1789US5461028AFluid-drill-hole treatment agents based on carbonic acid diestersHENKEL KGAA·Filed 1991·Granted Oct 24, 1995·65 cites·17 claims
- 1889US5318955AUse of selected ethers of monofunctional alcohols in drilling fluidsHENKEL KGAA·Filed 1993·Granted Jun 7, 1994·68 cites·16 claims
- 1988US6716799B1Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil explorationCOGNIS DEUTSCHLAND GMBH·Filed 1997·Granted Apr 6, 2004·72 cites·22 claims
- 2085US6350788B1Low-foam surfactant concentrates for use in the domain of plant growth stimulationHENKEL KGAA·Filed 1998·Granted Feb 26, 2002·41 cites·16 claims
- 2183US5348938AOleophilic alcohols as a constituent of invert drilling fluidsHENKEL KGAA·Filed 1990·Granted Sep 20, 1994·45 cites·13 claims
- 2282US6946524B2Methods for producing polyester amides based on polyisobutylenes, polyester amides produced thereby, and uses therefor in stabilizing crude oilCOGNIS DEUTSCHLAND GMBH·Filed 2001·Granted Sep 20, 2005·23 cites·14 claims
- 2382US6211119B1Multiphase lubricant concentrates for use in water based systems in the field of exploratory soil drillingHENKEL KGAA·Filed 1997·Granted Apr 3, 2001·36 cites·55 claims
- 2481US7666820B2Borehole treatment agent containing low-toxic oil phaseEMERY OLEOCHEMICALS GMBH·Filed 2003·Granted Feb 23, 2010·26 cites·22 claims
- 2575US5028342ADrilling mud additives based on a polymer mixture, their use, and a process for their productionHENKEL KGAA·Filed 1989·Granted Jul 2, 1991·30 cites·23 claims
- 2674US6180572B1Aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their useHENKEL KGAA·Filed 1996·Granted Jan 30, 2001·34 cites·16 claims
- 2772US5194422AUse of selected oleophilic alcohols in water-based drilling fluids of the o/w-emulsion type and corresponding drilling fluids with improved ecological acceptabilityHENKEL KGAA·Filed 1990·Granted Mar 16, 1993·27 cites·32 claims
- 2865US6596670B1Use of selected oleophilic ethers in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptabilityCOGNIS DEUTSCHLAND GMBH·Filed 1993·Granted Jul 22, 2003·19 cites·32 claims
- 2955US5770639AUse of selected, biologically safe stabilizers in polyvinyl-ester-based impregnating compositions for soil stabilizationHENKEL KGAA·Filed 1995·Granted Jun 23, 1998·15 cites·16 claims
- 3046US5199823AAqueous resin preparations and a process for stabilizing rock and plugging cavitiesHENKEL KGAA·Filed 1990·Granted Apr 6, 1993·9 cites·17 claims
- 3140US5725610AAdditive composition for cold operability of middle distillatesELF ANTAR FRANCE·Filed 1994·Granted Mar 10, 1998·7 cites·22 claims
- 3239US2008171671A1Use of Ethoxylated Amidoamines as Emulsifiers in Drilling FluidsMUELLER HEINZ·Filed 2005·Application pending·0 cites
- 3336US6344431B1Use of selected inhibitors against the formation of solid organo-based incrustations from fluid hydrocarbon mixturesFiled 1992·Granted Feb 5, 2002·5 cites·21 claims
- 3434US6566304B1Biogenic control and limitation of the reproduction of parasitic earth nematodes in stock cultureCOGNIS DEUTSCHLAND GMBH·Filed 1999·Granted May 20, 2003·3 cites·18 claims
- 3528US5322392AProcess for rock consolidation and/or cavity filling e.g. in tunnel construction and miningHENKEL KGAA·Filed 1990·Granted Jun 21, 1994·0 cites·17 claims
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