Patents by Inventor Nathalie Sophie Letzelter
Nathalie Sophie Letzelter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170158994Abstract: A single or multi-phase water-soluble cleaning pouch comprising a cleaning composition and an enveloping material, the pouch comprises at least one compartment comprising an aqueous composition, the aqueous composition comprising (i) in the range of from 45 percent by weight to 60 percent by weight based on the total weight of the aqueous composition of at least one complexing agent (A) selected from the group consisting of methylglycine diacetic acid, glutamic acid diacetic acid, their salts and mixtures thereof; (ii) in the range of from 1 percent by weight to 30 percent by weight based on the weight of component (A) of at least one homo- or copolymer of (meth)acrylic acid (B) that is either partially or fully neutralized, and (iii) water.Type: ApplicationFiled: December 1, 2016Publication date: June 8, 2017Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA
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Publication number: 20170029751Abstract: A process for reducing malodour in a pack comprising a cleaning composition, the composition comprising a cleaning-active capable of generating malodour and an oxidizing agent, the process comprising the steps of: i) creating a mixture comprising the cleaning-active capable of generating malodour and the oxidising agent; ii) leaving the mixture to rest for a resting period of at least 24 hours; and iii) optionally converting the mixture into a unit-dose product; and iv) packing the mixture resulting from step ii) or the unit-dose product resulting from step iii) into a pack.Type: ApplicationFiled: July 26, 2016Publication date: February 2, 2017Inventors: Nathalie Sophie LETZELTER, Laura Jane CAUFIELD, Philip Andrew CUNNINGHAM
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Publication number: 20170029750Abstract: A multi-phase unit-dose cleaning product comprising: i) an amine-containing cleaning active selected from the group consisting of aminocarboxylic complexing agent, amine oxide surfactant and mixtures thereof; and ii) an oxidizing agent wherein at least 30% of the amine-containing cleaning active is in a different phase from the oxidizing agent.Type: ApplicationFiled: July 26, 2016Publication date: February 2, 2017Inventors: Nathalie Sophie LETZELTER, Elena ALDA
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Patent number: 9476011Abstract: An automatic dishwashing liquor comprising: a) from about 0.5 to about 10 ppm of orthophosphate expressed as elementary phosphorous; b) from about 40 to about 600 ppm of a first polymer comprising: i) carboxylic acid monomers; ii) monomers comprising a sulfonic acid group wherein the monomers comprising a sulfonic acid group represent 10% or less of the polymer on a molar basis; c) from about 15 to about 150 ppm of a phosphonate; d) a bleach system comprising bleach and a bleach catalyst; and e) less than 30 ppm of polyphosphate.Type: GrantFiled: July 10, 2013Date of Patent: October 25, 2016Assignee: The Procter & Gamble CompanyInventors: Nathalie Sophie Letzelter, Alexander Charles Hollingsworth, Fernando Solache Leon, Victoria Wray, Neil Bradley
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Publication number: 20160222323Abstract: A method of automatic dishwashing comprising the step of delivering into a dishwasher a cleaning product comprising a particulate loose-powder composition comprising an organic complexing agent, bleach, manganese bleach catalyst and free of phosphate and wherein the manganese bleach catalyst is in the form of a delayed release particle.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: Nathalie Sophie LETZELTER, Fernando SOLACHE LEON, Claire URQUHART
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Publication number: 20160222324Abstract: A method of automatic dishwashing comprising the step of delivering into a dishwasher a cleaning product comprising a particulate loose-powder composition comprising an organic complexing agent, bleach, manganese bleach catalyst and free of phosphate and wherein the manganese bleach catalyst is in the form of a delayed release particle.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: Nathalie Sophie LETZELTER, Fernando SOLACHE LEON, Claire URQUHART
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Publication number: 20160222321Abstract: A detergent pack comprising a plurality of water-soluble unit-dose detergent products the products comprising a detergent composition and an enveloping material the detergent composition comprising: a) a malodour-generating amine-containing cleaning active; and b) a malodour reducing agent comprising a carboxylic functionality. wherein the composition comprises from about 15% to 50% of amine-containing cleaning active.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: Nathalie Sophie LETZELTER, Laura Jane CAUFIELD, Kevin Graham BLYTH
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Publication number: 20160222325Abstract: A phosphate-free automatic dishwashing detergent composition in unit-dose form having a weight of from about 8 to about 25 grams, the composition comprising: i) greater than about 5 to about 8 grams of an organic complexing agent; ii) a dispersant polymer; iii) from about 1 to about 3 grams of bleach and wherein the complexing agent and the dispersant polymer are in a weight ratio of from about 5:1 to about 25:1.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: Nathalie Sophie LETZELTER, Ashmita RANDHAWA, SANDRINE ANNETTE HENRIETTE VIALLET
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Publication number: 20160222330Abstract: A moisture-permeable detergent pack comprising a plurality of water-soluble unit-dose detergent products the products comprising a phosphate-free detergent composition and an enveloping material the detergent composition comprising: a) a moisture sensitive ingredient; and b) from 15% to 50% by weight of the product of an aminocarboxylic complexing agent wherein the aminocarboxylic complexing agent is in the form of a hygroscopic particle.Type: ApplicationFiled: January 28, 2016Publication date: August 4, 2016Inventors: Nathalie Sophie LETZELTER, Graham Peter CALVERT, Sarah Jane MELVILLE
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Publication number: 20160145544Abstract: A single or multi-compartment water-soluble cleaning pouch comprising a cleaning composition and an enveloping material, the pouch comprising at least one compartment comprising a liquid composition said liquid composition comprising a mixture of a complexing agent and an eRH reducing agent wherein the complexing agent is selected from the group consisting of methyl glycine diacetic acid, its salts and mixtures thereof and the eRH reducing agent is a salt of an organic acid selected from the group consisting of mono-, di-carboxylic acids and mixtures thereof.Type: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
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Publication number: 20160145545Abstract: A single or multi-compartment water-soluble cleaning pouch comprising a cleaning composition and an enveloping material, the pouch comprising at least one compartment comprising a liquid composition said liquid composition comprising an aminocarboxylic complexing agent wherein the composition has a pH of from about 10 to about 11 as measured as a 1% aqueous solution at 22° C.Type: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
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Publication number: 20160145543Abstract: A single or multi-compartment water-soluble cleaning pouch comprising a cleaning composition and an enveloping material, the pouch comprising at least one compartment comprising a liquid composition said liquid composition comprising a mixture of a first complexing agent and a second complexing agent wherein the first complexing agent is selected from the group consisting of methyl glycine diacetic acid, its salts and mixtures thereof and wherein the mixture of the complexing agents comprises at least 10% by weight thereof of the first complexing agent and the liquid composition has an eRH of about 65% or less at 20° C.Type: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
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Publication number: 20160145546Abstract: A single or multi-compartment water-soluble cleaning pouch comprising a cleaning composition and an enveloping material, the pouch comprising at least one compartment comprising a liquid composition said liquid composition comprising (A) in the range of from 30 to 60% by weight of a complexing agent, selected from the group consisting of methylglycine diacetic acid, glutamic acid diacetic acid, their salts and mixtures thereof, (B) in the range of from 700 ppm to 7% by weight of a polymer being selected from polyamines wherein the hydrogen atoms of the amines have been partially or fully substituted by CH2COOH groups, partially or fully neutralized with alkali metal cations, ppm and percentages referring to the liquid composition.Type: ApplicationFiled: November 19, 2015Publication date: May 26, 2016Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
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Publication number: 20140179586Abstract: Multi-compartment water-soluble pack comprising a cleaning composition and an enveloping material where the pack comprises a first compartment containing a first composition in liquid form comprising: i) a hygroscopic material; and ii) more than about 15% of water; wherein the first composition has an equilibrium relative humidity of less than about 65% at 20° C.Type: ApplicationFiled: December 12, 2013Publication date: June 26, 2014Applicant: The Procter & Gamble CompanyInventors: Nathalie Sophie LETZELTER, Nikola CURCIC, Elena ALDA, Karen Margaret PRESTON, Robby Renilde Francois KEULEERS
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Publication number: 20140174478Abstract: An automatic dishwashing detergent composition containing a suds suppressor, a high foaming surfactant, a low foaming non-ionic surfactant, and a builder provides for superior cleaning without high levels of foam.Type: ApplicationFiled: December 12, 2013Publication date: June 26, 2014Applicant: The Procter & Gamble CompanyInventors: Nathalie Sophie LETZELTER, Sandrine VIALLET, Robby Renilde Francois KEULEERS
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Publication number: 20140053877Abstract: An automatic dishwashing liquor comprising: a) from about 0.5 to about 10 ppm of orthophosphate expressed as elementary phosphorous; b) from about 40 to about 600 ppm of a first polymer comprising: i) carboxylic acid monomers; ii) monomers comprising a sulfonic acid group wherein the monomers comprising a sulfonic acid group represent more than 10% of the polymer on a molar basis; c) from about 15 to about 150 ppm of a phosphonate; d) a bleach system comprising bleach and a bleach catalyst; and e) less than 30 ppm of polyphosphate.Type: ApplicationFiled: July 10, 2013Publication date: February 27, 2014Inventors: Nathalie Sophie LETZELTER, Alexander Charles HOLLINGSWORTH, Fernando SOLACHE LEON, Victoria WRAY, Neil BRADLEY
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Publication number: 20140053878Abstract: An automatic dishwashing liquor comprising: a) from about 0.5 to about 10 ppm of orthophosphate expressed as elementary phosphorous; b) from about 40 to about 600 ppm of a first polymer comprising: i) carboxylic acid monomers; ii) monomers comprising a sulfonic acid group wherein the monomers comprising a sulfonic acid group represent 10% or less of the polymer on a molar basis; c) from about 15 to about 150 ppm of a phosphonate; d) a bleach system comprising bleach and a bleach catalyst; and e) less than 30 ppm of polyphosphate.Type: ApplicationFiled: July 10, 2013Publication date: February 27, 2014Inventors: Nathalie Sophie LETZELTER, Alexander Charles HOLLINGSWORTH, Fernando SOLACHE LEON, Victoria WRAY, Neil BRADLEY
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Patent number: 7074754Abstract: The present invention relates to an auxiliary composition, for use in the laundering or treatment of fabrics, comprising a co-particulate admix, the co-particulate admix comprises: (i) clay; and (ii) a hydrophobic component; and (iii) a charged polymeric fabric-softening boosting component; wherein the auxiliary composition further comprises a flocculating aid and optionally one or more adjunct components.Type: GrantFiled: February 3, 2005Date of Patent: July 11, 2006Assignee: The Procter & Gamble CompanyInventors: Kevin Graham Blyth, Andrew Russell Graydon, Nathalie Sophie Letzelter, Glen Steven Ward, Kevin Lee Kott
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Patent number: 6984618Abstract: The present invention relates to a softening-through-the-wash composition comprising: (i) a fabric-softening cationic quaternary ammonium di-ester compound comprising a cationic quaternary ammonium component having the formula: wherein, each R is independently selected from C12–C22 alkyl groups; and (ii) a source of acid selected from the group consisting of C12–C22 fatty acids, mono-alkyl esters of a C12-C22 alkyl sulphuric acids, C11–C13 alkyl benzene sulphonic acids, anionic derivatives thereof, salts thereof, and combinations thereof; and (iii) clay; and (iv) one or more adjunct components.Type: GrantFiled: December 5, 2002Date of Patent: January 10, 2006Assignee: The Procter & Gamble CompanyInventors: Stephen Wayne Heinzman, Nathalie Sophie Letzelter, Fiona Susan Williams, Leanne Bolton
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Patent number: 6881717Abstract: The present invention relates to fabric softening component comprising a clay, a flocculating agent, a surfactant and a carrier material. The carrier material is preferably a powdered or granular builder or alkalinity source. The component is preferably a spray-dried particle, extrudate or an agglomerate. It preferably comprises at least a sulphate and/or sulphonate surfactant, a zeolite and/or phosphate builder and a carbonate salt. Highly preferred is that the component also comprises a brightener.Type: GrantFiled: March 30, 2000Date of Patent: April 19, 2005Assignee: The Procter & Gamble CompanyInventors: Robin Gibson Hall, Nathalie Sophie Letzelter