Inventor · disambiguated record
Alfred Oftring
Also filed as: OFTRING ALFRED
99 granted patents·12 pending applications·1,087 citations·filing 1985–2015
99Inventor score
Top patents by PatentIndex Score
111 records- 0198US5786313AUse of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereofBASF AG·Filed 1994·Granted Jul 28, 1998·102 cites·1 claims
- 0296US4816553APolyacetals, preparation thereof from dialdehydes and polyolcarboxylic acids, and use of sameBASF AG·Filed 1988·Granted Mar 28, 1989·88 cites·7 claims
- 0394US7671234B2Method for producing methylglycine-N,N-diethanoic acid-trialkali metal salts with a low by-product contentBASF AG·Filed 2006·Granted Mar 2, 2010·21 cites·8 claims
- 0493US6320064B1Fatty acid derivatives and their use as surfactants in detergents and cleanersBASF AG·Filed 2000·Granted Nov 20, 2001·23 cites·4 claims
- 0592US6380410B1Fatty acid derivatives and their use as surfactants in detergents and cleanersBASF AG·Filed 1999·Granted Apr 30, 2002·40 cites·10 claims
- 0692US5849950APreparation of glycine-N,N-diacetic acid derivativesBASF AG·Filed 1996·Granted Dec 15, 1998·57 cites·5 claims
- 0790US8163951B2Method for producing quaternary ammonium compoundsSZARVAS LASZLO·Filed 2005·Granted Apr 24, 2012·11 cites·22 claims
- 0889US6204238B1Fatty acid derivatives and their use as surfactants in detergents and cleanersBASF AG·Filed 2000·Granted Mar 20, 2001·24 cites·7 claims
- 0989US6034257AMethod for separating glycerin from reaction mixtures containing glycerin and fatty acid amides, alkoxylated amides obtained therefrom and the use thereofBASF AG·Filed 1997·Granted Mar 7, 2000·41 cites·13 claims
- 1088US7915454B2Method for producing ethylenediamineBASF SE·Filed 2008·Granted Mar 29, 2011·7 cites·19 claims
- 1187US8802894B2Process for the preparation of aqueous solutions of methylglycine-N,N-diacetic acid trialkali metal saltsOFTRING ALFRED·Filed 2012·Granted Aug 12, 2014·5 cites·20 claims
- 1286US7880036B2Production method for ethyleneamine mixturesBASF SE·Filed 2008·Granted Feb 1, 2011·6 cites·18 claims
- 1383US8299249B2Method for producing TETA by means of EDDNDAHMEN KIRSTEN·Filed 2008·Granted Oct 30, 2012·4 cites·23 claims
- 1483US7960591B2Method for producing triethylenetetramineBASF SE·Filed 2008·Granted Jun 14, 2011·4 cites·14 claims
- 1583US7880035B2Method for producing ethyleneaminesBASF SE·Filed 2008·Granted Feb 1, 2011·4 cites·14 claims
- 1683US7754911B2Method for isolating methyl glycine nitrile-N,N-diacetonitriles from an aqueous crude mixtureBASF AG·Filed 2006·Granted Jul 13, 2010·7 cites·7 claims
- 1783US5741947APreparation of alkoxylation products in the presence of mixed hydroxides modified with additivesBASF AG·Filed 1994·Granted Apr 21, 1998·42 cites·11 claims
- 1882US8455682B2Method for the production of aminodicarboxylic acid-N,N-diacetic acidsOFTRING ALFRED·Filed 2009·Granted Jun 4, 2013·5 cites·18 claims
- 1982US6004923AFatty acid derivatives and their use as surfactants in detergents and cleanersBASF AG·Filed 1996·Granted Dec 21, 1999·31 cites·9 claims
- 2081US8440852B2Method for producing tetraethylenepentamineDAHMEN KIRSTEN·Filed 2008·Granted May 14, 2013·4 cites·19 claims
- 2181US4814505APurification of n-vinylformamideBASF AG·Filed 1987·Granted Mar 21, 1989·16 cites·3 claims
- 2280US9802884B2Mixtures of MGDA enantiomers, and process for making such mixturesBASF SE·Filed 2014·Granted Oct 31, 2017·2 cites·15 claims
- 2380US6005141AUse of glycine-N,N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ions and process for the preparation thereofBASF AG·Filed 1998·Granted Dec 21, 1999·24 cites·4 claims
- 2480US4670591APreparation of N-α-alkoxyethylformamidesBASF AG·Filed 1986·Granted Jun 2, 1987·15 cites·8 claims
- 2578US6057283AFatty acid derivatives and their use as surfactants in detergents and cleanersBASF AG·Filed 1999·Granted May 2, 2000·24 cites·7 claims
- 2678US6008176AUse of glycine-N, N-diacetic acid derivatives as biodegradable complexing agents for alkaline earth metal ions and heavy metal ionsBASF AG·Filed 1998·Granted Dec 28, 1999·14 cites·10 claims
- 2777US8309759B2Preparing ether carboxylatesBAUMANN ROBERT·Filed 2011·Granted Nov 13, 2012·2 cites·17 claims
- 2875US8153845B2Method for producing aminonitrilesOFTRING ALFRED·Filed 2008·Granted Apr 10, 2012·2 cites·10 claims
- 2975US5019296ASerine-N,N-diacetic acid and derivatives as complexing agents and detergents containing sameBASF AG·Filed 1990·Granted May 28, 1991·29 cites·4 claims
- 3074US9227915B2Process for the preparation of a crystalline L-MGDA trialkali metal saltOFTRING ALFRED·Filed 2012·Granted Jan 5, 2016·2 cites·18 claims
- 3174US5856538APreparation of N-acylamino carboxylic acids and N-acylamino sulfonic acids and their alkali metal saltsBASF AG·Filed 1995·Granted Jan 5, 1999·17 cites·8 claims
- 3272US5539134AProcess for the preparation of N-alkanoyl-polyhydroxyalkylaminesBASF AG·Filed 1993·Granted Jul 23, 1996·13 cites·5 claims
- 3371US6413929B1Bleaching efficiency boosters for bleach and textile detergent compositionsBASF AG·Filed 2000·Granted Jul 2, 2002·8 cites·2 claims
- 3470US6660878B2Process for the preparation of N-phosphonomethylglycineBASF AG·Filed 2003·Granted Dec 9, 2003·4 cites·4 claims
- 3570US5817864AProcess for the preparation of glycine-N, N-diacetic acid derivativesBASF AG·Filed 1996·Granted Oct 6, 1998·13 cites·6 claims
- 3670US4978805APolyethersBASF AG·Filed 1989·Granted Dec 18, 1990·16 cites·4 claims
- 3769US8586795B2Methyl-substituted teta compoundsHUGO RANDOLF·Filed 2010·Granted Nov 19, 2013·1 cites·18 claims
- 3868US5972237AUse of heterocyclic compounds as activators for inorganic peroxy compoundsBASF AG·Filed 1996·Granted Oct 26, 1999·19 cites·13 claims
- 3968US5009805ALiquid detergent with copolymer additiveBASF AG·Filed 1989·Granted Apr 23, 1991·28 cites·7 claims
- 4067US5179201AAlkyl mono-and polyglucoside ether carboxylates, and their preparation and use thereofBASF AG·Filed 1991·Granted Jan 12, 1993·24 cites·3 claims
- 4164US7652165B2Neutralization of isophorone nitrile synthesis productsBASF AG·Filed 2003·Granted Jan 26, 2010·3 cites·16 claims
- 4264US6281394B1Method for producing vicinal diols or polyolsBASF AG·Filed 1998·Granted Aug 28, 2001·8 cites·16 claims
- 4361US8772527B2Process for isomerization of cis-2-pentenenitrile to 3-pentenenitrilesBASF SE·Filed 2013·Granted Jul 8, 2014·0 cites·6 claims
- 4461US6818793B2Method for production of n-phosphonomethylglycineBASF AG·Filed 2000·Granted Nov 16, 2004·2 cites·18 claims
- 4561US5560814AUse of thiouronium salts as brighteners for aqueous acidic electronickelization bathsBASF AG·Filed 1993·Granted Oct 1, 1996·7 cites·11 claims
- 4661US5445724APhosphonium salts and use thereof as brighteners for aqueous acidic electronickelization bathsBASF AG·Filed 1993·Granted Aug 29, 1995·14 cites·11 claims
- 4761US5077039ASubstituted glucosidesBASF AG·Filed 1989·Granted Dec 31, 1991·10 cites·6 claims
- 4860US5951841AElectroplating baths salts of aromatic hydroxy compounds and their use as brightenersBASF AG·Filed 1995·Granted Sep 14, 1999·15 cites·17 claims
- 4960US5907055AUse of triacids based on alkoxylated tertiary amines as complexing agentsBASF AG·Filed 1996·Granted May 25, 1999·7 cites·2 claims
- 5058US8586794B25-isopropyl-3-aminomethyl-2-methyl-1-amino-cyclohexane (carvone diamine), and method for the production thereofERNST MARTIN·Filed 2009·Granted Nov 19, 2013·0 cites·19 claims
Showing the top 50 of 111 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →