Inventor · disambiguated record
Michael Feustel
Also filed as: FEUSTEL MICHAEL
52 granted patents·17 pending applications·1,126 citations·filing 1988–2021
98Inventor score
Files withCLARIANT INT LTD16CLARIANT GMBH15CLARIANT PRODUKTE DEUTSCHLAND13HOECHST AG7LEINWEBER DIRK6
Top patents by PatentIndex Score
69 records- 0198US5391632ATerpolymers based on α,β-unsaturated dicarboxylic anhydrides, α,β-unsaturated compounds and polyoxyalkylene ethers of lower unsaturated alcoholsHOECHST AG·Filed 1994·Granted Feb 21, 1995·122 cites·16 claims
- 0296US5186720AUse of products of the reaction of alkenyl-spiro-bislactones with amines as paraffin-dispersantsHOECHST AG·Filed 1990·Granted Feb 16, 1993·99 cites·15 claims
- 0395US6566309B1Additives for inhibiting gas hydrate formationCLARIANT GMBH·Filed 2000·Granted May 20, 2003·70 cites·7 claims
- 0494US8034748B2Additives for inhibiting the formation of gas hydratesCLARIANT PRODUKTE DEUTSCHLAND·Filed 2007·Granted Oct 11, 2011·16 cites·8 claims
- 0594US5998530AFlowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resinsCLARIANT GMBH·Filed 1998·Granted Dec 7, 1999·125 cites·34 claims
- 0693US4985048APolymer mixtures for improving the low-temperature flow properties of mineral oil distillatesHOECHST AG·Filed 1988·Granted Jan 15, 1991·67 cites·5 claims
- 0792US5925233AUse of alkanesulfonic acids as asphaltene-dispersing agentsCLARIANT GMBH·Filed 1997·Granted Jul 20, 1999·85 cites·9 claims
- 0890US8123930B2Additives for crude oilsCOHRS CARSTEN·Filed 2006·Granted Feb 28, 2012·16 cites·10 claims
- 0990US5254652ATerpolymers of ethylene, their preparation, and their use as additives for mineral oil distillatesHOECHST AG·Filed 1991·Granted Oct 19, 1993·56 cites·4 claims
- 1089US7435845B2Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradabilityCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Oct 14, 2008·28 cites·2 claims
- 1188US7160507B2Corrosion inhibitors with improved water solubility and improved film persistenceCLARIANT GMBH·Filed 2002·Granted Jan 9, 2007·18 cites·10 claims
- 1286US7253138B2Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradabilityCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Aug 7, 2007·17 cites·8 claims
- 1384US7183240B2Additives for inhibiting the formation of gas hydratesCLARIANT PRODUKTE DEUTSCHLAND·Filed 2002·Granted Feb 27, 2007·26 cites·10 claims
- 1484US6894007B2Additives for inhibiting gas hydrate formationCLARIANT GMBH·Filed 2002·Granted May 17, 2005·33 cites·9 claims
- 1582US6180683B1Synergistic mixtures of alkylphenol-formaldehyde resins with oxalkylated amines as asphaltene dispersantsCLARIANT GMBH·Filed 1998·Granted Jan 30, 2001·55 cites·6 claims
- 1681US8293690B2Dispersions of polymer oil additivesFEUSTEL MICHAEL·Filed 2007·Granted Oct 23, 2012·6 cites·24 claims
- 1781US7893009B2Polymers and their production and use as gas hydrate inhibitorsCLARIANT PRODUKTE DEUTSCHLAND·Filed 2006·Granted Feb 22, 2011·8 cites·7 claims
- 1880US6372918B1Compound for inhibiting corrosionCLARIANT GMBH·Filed 2000·Granted Apr 16, 2002·17 cites·6 claims
- 1979US8067651B21-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved biodegradabilityLEINWEBER DIRK·Filed 2008·Granted Nov 29, 2011·3 cites·9 claims
- 2078US7348451B2Additives for inhibiting gas hydrate formationCLARIANT PRODUKTE DEUTSCHLAND·Filed 2007·Granted Mar 25, 2008·5 cites·7 claims
- 2177US5705603APolyetheramines with polymers of α, β-unsaturated dicarboxylic acidsHOECHST AG·Filed 1995·Granted Jan 6, 1998·41 cites·6 claims
- 2276US7569615B2Alkoxylated dendrimers and use thereof as biodegradable demulsifiersCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Aug 4, 2009·14 cites·8 claims
- 2376US6465528B1Aromatic aldehyde resins and their use as emulsion breakersCLARIANT GMBH·Filed 2000·Granted Oct 15, 2002·14 cites·5 claims
- 2474US7214814B2Additives for inhibiting gas hydrate formationCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted May 8, 2007·13 cites·9 claims
- 2574US6821933B2Additives for improving the cold flow properties and the storage stability of crude oilCLARIANT INT LTD·Filed 2001·Granted Nov 23, 2004·10 cites·11 claims
- 2673US7615102B2Corrosion and gas hydrate inhibitors with an increased biological degradability and a reduced toxicityCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Nov 10, 2009·12 cites·13 claims
- 2773US6063146AEthercarboxylic acids as asphaltene dispersants in crude oilsCLARIANT GMBH·Filed 1998·Granted May 16, 2000·30 cites·5 claims
- 2873US5948237AUse of sarcosinates as asphaltene-dispersing agentsCLARIANT GMBH·Filed 1997·Granted Sep 7, 1999·13 cites·6 claims
- 2972US7341617B2Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradabilityCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Mar 11, 2008·7 cites·10 claims
- 3067US6204420B1Synergistic mixtures of phosphoric esters with carboxylic acids or carboxylic acid derivatives as asphaltene dispersantsCLARIANT GMBH·Filed 1999·Granted Mar 20, 2001·24 cites·9 claims
- 3167US5439981AGraft polymers, their preparation and use as pour point depressants and flow improvers for crude oils, residual oils and middle distillatesHOECHST AG·Filed 1993·Granted Aug 8, 1995·18 cites·20 claims
- 3266US8735332B2Use of pyroglutamic acid esters as gas hydrate inhibitors with improved biodegradabilityLEINWEBER DIRK·Filed 2006·Granted May 27, 2014·2 cites·8 claims
- 3365US7323609B2Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradabilityCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Jan 29, 2008·6 cites·11 claims
- 3464US11981876B2Wax inhibitors with improved flowabilityCLARIANT INT LTD·Filed 2020·Granted May 14, 2024·0 cites·29 claims
- 3561US8722589B2Use of 1-alkyl-5-oxopyrrolidine-3-carboxylic esters as gas hydrate inhibitors with improved biodegradabilityLEINWEBER DIRK·Filed 2008·Granted May 13, 2014·1 cites·8 claims
- 3660US6678766B1Synchronous communication bus and process for synchronous communication between circuit modulesSCI WORX GMBH·Filed 2000·Granted Jan 13, 2004·8 cites·8 claims
- 3759US11692053B2Polymeric pour point depressants for waxy crude oilsCLARIANT INT LTD·Filed 2021·Granted Jul 4, 2023·0 cites·25 claims
- 3859US7008561B2Ether carboxylic acids based on alkoxylated mercaptobenzothiazoles and use of the same as corrosion inhibitorsCLARIANT GMBH·Filed 2002·Granted Mar 7, 2006·5 cites·9 claims
- 3958US9029160B2Method for determining the content of hydrogen sulfide in crude and residual oilsFEUSTEL MICHAEL·Filed 2012·Granted May 12, 2015·1 cites·25 claims
- 4058US7297823B2Additives for inhibiting the formation of gas hydratesCLARIANT PRODUKTE DEUTSCHLAND·Filed 2001·Granted Nov 20, 2007·5 cites·9 claims
- 4156US8598101B2Dispersions of polymer oil additivesCLARIANT FINANCE BVI LTD·Filed 2012·Granted Dec 3, 2013·0 cites·2 claims
- 4255US2009057618A1Corrosion inhibitors containing amphoteric surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 4354US9452981B2Pyroglutamic acid esters with improved biodegradabilityFEUSTEL MICHAEL·Filed 2011·Granted Sep 27, 2016·0 cites·9 claims
- 4454US5349019ANew copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oilsHOECHST AG·Filed 1993·Granted Sep 20, 1994·12 cites·7 claims
- 4553US8349215B2Corrosion inhibitors having increased biological degradability and minimized toxicityCLARIANT FINANCE BVI LTD·Filed 2008·Granted Jan 8, 2013·0 cites·6 claims
- 4653US6803492B2Additives based on components present in petroleum for improving the cold flow properties of crude and distillate oilsCLARIANT INT LTD·Filed 2002·Granted Oct 12, 2004·7 cites·11 claims
- 4753US2010234592A1Corrosion Inhibitors Having Increased Biodegradability and Reduced ToxicityLEINWEBER DIRK·Filed 2007·Application pending·0 cites
- 4851US2012065394A1Corrosion Inhibitors Having Increased Biodegradability and Reduced ToxicityLEINWEBER DIRK·Filed 2011·Application pending·0 cites
- 4950US11976248B2Dispersions of polymeric oil additivesCLARIANT INT LTD·Filed 2018·Granted May 7, 2024·0 cites·33 claims
- 5050US2009057617A1Corrosion inhibitors containing anionic surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
Showing the top 50 of 69 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →