Inventor · disambiguated record
Dirk Leinweber
Also filed as: LEINWEBER DIRK
30 granted patents·31 pending applications·66 citations·filing 2001–2024
94Inventor score
Files withCLARIANT INT LTD30CLARIANT PRODUKTE DEUTSCHLAND9LEINWEBER DIRK9CLARIANT FINANCE BVI LTD4CLARIANT GMBH2
Top patents by PatentIndex Score
61 records- 0186US2025122418A1Synergistic Blends Of Anti-Agglomerant Gas Hydrate Inhibitors With Quaternary Alkyl Ammonium CompoundsCLARIANT INT LTD·Filed 2024·Application pending·0 cites
- 0285US7208118B2Process for the solvent-free preparation of ethercarboxylic acids having a low residual salt contentCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Apr 24, 2007·6 cites·10 claims
- 0383US2024318064A1Method Of And A Composition For Controlling Gas Hydrate Blockage Through The Addition Of A Synergistically Acting Blend With Alkoxylates Of Fatty Alcohols, Fatty Amines And Fatty AcidsCLARIANT INT LTD·Filed 2024·Application pending·0 cites
- 0481US7893009B2Polymers and their production and use as gas hydrate inhibitorsCLARIANT PRODUKTE DEUTSCHLAND·Filed 2006·Granted Feb 22, 2011·8 cites·7 claims
- 0579US8067651B21-alkyl-5-oxopyrrolidine-3-carboxylic esters with improved biodegradabilityLEINWEBER DIRK·Filed 2008·Granted Nov 29, 2011·3 cites·9 claims
- 0676US7569615B2Alkoxylated dendrimers and use thereof as biodegradable demulsifiersCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Aug 4, 2009·14 cites·8 claims
- 0773US11898091B2Synergistic blends of anti-agglomerant gas hydrate inhibitors with quaternary benzyl ammonium compoundsCLARIANT INT LTD·Filed 2020·Granted Feb 13, 2024·0 cites·31 claims
- 0873US7615102B2Corrosion 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
- 0972US12129427B2Synergistic blends of anti-agglomerant gas hydrate inhibitors with quaternary alkyl ammonium compoundsCLARIANT INT LTD·Filed 2020·Granted Oct 29, 2024·0 cites·33 claims
- 1072US11572499B2Method of and a composition for controlling gas hydrate blockage through the addition of a synergistically acting blend with a quaternary benzyl ammonium compoundCLARIANT INT LTD·Filed 2020·Granted Feb 7, 2023·0 cites·16 claims
- 1171US12037537B2Method of and a composition for controlling gas hydrate blockage through the addition of a synergistically acting blend with alkoxylates of fatty alcohols, fatty amines and fatty acidsCLARIANT INT LTD·Filed 2020·Granted Jul 16, 2024·0 cites·19 claims
- 1269US7563291B2Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and waterCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Jul 21, 2009·1 cites·13 claims
- 1367US10993898B2Fatty acid esters of oxalkylated alkylalkylenediamines and salts thereof and compositions for conditioning of hairCLARIANT INT LTD·Filed 2015·Granted May 4, 2021·1 cites·16 claims
- 1467US2024409523A1Sugar amides and mixtures thereofCLARIANT INT LTD·Filed 2022·Application pending·0 cites
- 1566US8735332B2Use of pyroglutamic acid esters as gas hydrate inhibitors with improved biodegradabilityLEINWEBER DIRK·Filed 2006·Granted May 27, 2014·2 cites·8 claims
- 1664US7671098B2Alkoxylated, cross-linked polyglycerols and use thereof as biodegradable demulsifierCLARIANT PRODUKTE DEUTSCHLAND·Filed 2004·Granted Mar 2, 2010·10 cites·8 claims
- 1761US8722589B2Use 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
- 1859US7026363B2Alkoxylated polyglycerols and their use as demulsifiersCLARIANT GMBH·Filed 2002·Granted Apr 11, 2006·8 cites·8 claims
- 1957US12138638B2Composition and method for use of 1-alkyl-5-oxopyrrolidine-3-carboxylic acids as collectors for phosphate and lithium flotationCLARIANT INT LTD·Filed 2021·Granted Nov 12, 2024·0 cites·19 claims
- 2055US2009057618A1Corrosion inhibitors containing amphoteric surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 2154US9452981B2Pyroglutamic acid esters with improved biodegradabilityFEUSTEL MICHAEL·Filed 2011·Granted Sep 27, 2016·0 cites·9 claims
- 2253US8349215B2Corrosion inhibitors having increased biological degradability and minimized toxicityCLARIANT FINANCE BVI LTD·Filed 2008·Granted Jan 8, 2013·0 cites·6 claims
- 2353US2010234592A1Corrosion Inhibitors Having Increased Biodegradability and Reduced ToxicityLEINWEBER DIRK·Filed 2007·Application pending·0 cites
- 2452US2024384202A1End-group capped, bio-based low foaming surface active agentsCLARIANT INT LTD·Filed 2022·Application pending·0 cites
- 2551US12479957B2Ethoxylated glycerol esters and method for the production thereofCLARIANT INT LTD·Filed 2020·Granted Nov 25, 2025·0 cites·16 claims
- 2651US2012065394A1Corrosion Inhibitors Having Increased Biodegradability and Reduced ToxicityLEINWEBER DIRK·Filed 2011·Application pending·0 cites
- 2750US2009057617A1Corrosion inhibitors containing anionic surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 2850US2009057615A1Corrosion inhibitors containing nonionic surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 2950US2009057616A1Corrosion inhibitors containing cationic surfactantsCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 3049US12480073B2Ethoxylated glycerol ester-containing detergent for machine dishwashingCLARIANT INT LTD·Filed 2020·Granted Nov 25, 2025·0 cites·18 claims
- 3149US2009124786A1Pyroglutamic Acid Esters With Improved BiodegradilityFEUSTEL MICHAEL·Filed 2006·Application pending·0 cites
- 3249US2010283011A1Corrosion Inhibitors Having Increased Biological Degradability And Minimized ToxicityCLARIANT FINANCE BVI LTD·Filed 2008·Application pending·0 cites
- 3348US11161804B2Unsymmetrically substituted dicarboxylic acid diamido ammonium salts and their use for gas hydrate anti-agglomerationCLARIANT INT LTD·Filed 2018·Granted Nov 2, 2021·0 cites·24 claims
- 3448US2009054268A1Use of substituted polyethyleneimines as gas hydrate inhibitors with improved biodegradabilityCLARIANT INT LTD·Filed 2008·Application pending·0 cites
- 3547US9956547B2Preparation of polyglycerolsCLARIANT INT LTD·Filed 2015·Granted May 1, 2018·0 cites·17 claims
- 3647US7815698B2Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and waterCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Oct 19, 2010·0 cites·11 claims
- 3747US2011098507A1Asphalt Dispersers On The Basis Of Phosphonic AcidsCLARIANT FINANCE BVI LTD·Filed 2008·Application pending·0 cites
- 3846US11845892B2Use of complex polyesteramines and polyester polyquaternary ammonium compounds as corrosion inhibitorsCLARIANT INT LTD·Filed 2021·Granted Dec 19, 2023·0 cites·20 claims
- 3946US9334243B2N-alkyl-N′-poly(oxyalkyl)hexahydropyrimidine-quaternary ammonium salts and the use thereof as corrosion inhibitorsLEINWEBER DIRK·Filed 2013·Granted May 10, 2016·0 cites·10 claims
- 4046US8350058B2Method for producing alkenyl succinic anhydridesCLARIANT PRODUKTE DEUTSCHLAND·Filed 2005·Granted Jan 8, 2013·0 cites·27 claims
- 4145US10238591B2Cosmetic compositions comprising estolide esters and uses for hair treatmentCLARIANT INT LTD·Filed 2016·Granted Mar 26, 2019·0 cites·20 claims
- 4245US2018282480A1Cashew Nutshell Liquid Alkoxylate Carboxylate as a New Renewable Surfactant Composition for Enhanced Oil Recovery ApplicationsCLARIANT INT LTD·Filed 2016·Application pending·0 cites
- 4344US2008214865A1Use of Polyesters in the Form of Gas Hydrate InhibitorsCLARIANT PRODUKTE DEUTSCHLAND·Filed 2006·Application pending·0 cites
- 4443US8920543B2Additives for inhibition of gas hydrate formationLEINWEBER DIRK·Filed 2011·Granted Dec 30, 2014·0 cites·16 claims
- 4543US8920542B2Additives for inhibiting gas hydrate formationLEINWEBER DIRK·Filed 2010·Granted Dec 30, 2014·0 cites·16 claims
- 4643US2022041957A1Glucamide-based surfactantsCLARIANT INT LTD·Filed 2019·Application pending·0 cites
- 4743US2020017752A1Use Of A Composition Containing At Least One Biodegradable Sugar-Amide-Compound In Combination With At Least One Sulfur-Based Synergist For Corrosion Inhibition Of A Metallic Equipment In Oilfield ApplicationsCLARIANT INT LTD·Filed 2017·Application pending·0 cites
- 4842US11266587B2Oligoester ammonium salts and their use in compositions for conditioning hairCLARIANT INT LTD·Filed 2016·Granted Mar 8, 2022·0 cites·11 claims
- 4941US2021189290A1Alkoxylated phenol derivativesCLARIANT INT LTD·Filed 2017·Application pending·0 cites
- 5041US2018291254A1Cashew Nutshell Liquid Alkoxylate Sulfate as a New Renewable Surfactant Composition for Enhanced Oil Recovery ApplicationsCLARIANT INT LTD·Filed 2016·Application pending·0 cites
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →