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).

  • Publication number: 20170158994
    Abstract: 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: Application
    Filed: December 1, 2016
    Publication date: June 8, 2017
    Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA
  • Publication number: 20170029751
    Abstract: 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: Application
    Filed: July 26, 2016
    Publication date: February 2, 2017
    Inventors: Nathalie Sophie LETZELTER, Laura Jane CAUFIELD, Philip Andrew CUNNINGHAM
  • Publication number: 20170029750
    Abstract: 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: Application
    Filed: July 26, 2016
    Publication date: February 2, 2017
    Inventors: Nathalie Sophie LETZELTER, Elena ALDA
  • Patent number: 9476011
    Abstract: 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: Grant
    Filed: July 10, 2013
    Date of Patent: October 25, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Alexander Charles Hollingsworth, Fernando Solache Leon, Victoria Wray, Neil Bradley
  • Publication number: 20160222323
    Abstract: 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: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Nathalie Sophie LETZELTER, Fernando SOLACHE LEON, Claire URQUHART
  • Publication number: 20160222324
    Abstract: 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: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Nathalie Sophie LETZELTER, Fernando SOLACHE LEON, Claire URQUHART
  • Publication number: 20160222321
    Abstract: 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: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Nathalie Sophie LETZELTER, Laura Jane CAUFIELD, Kevin Graham BLYTH
  • Publication number: 20160222325
    Abstract: 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: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Nathalie Sophie LETZELTER, Ashmita RANDHAWA, SANDRINE ANNETTE HENRIETTE VIALLET
  • Publication number: 20160222330
    Abstract: 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: Application
    Filed: January 28, 2016
    Publication date: August 4, 2016
    Inventors: Nathalie Sophie LETZELTER, Graham Peter CALVERT, Sarah Jane MELVILLE
  • Publication number: 20160145544
    Abstract: 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: Application
    Filed: November 19, 2015
    Publication date: May 26, 2016
    Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
  • Publication number: 20160145545
    Abstract: 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: Application
    Filed: November 19, 2015
    Publication date: May 26, 2016
    Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
  • Publication number: 20160145543
    Abstract: 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: Application
    Filed: November 19, 2015
    Publication date: May 26, 2016
    Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
  • Publication number: 20160145546
    Abstract: 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: Application
    Filed: November 19, 2015
    Publication date: May 26, 2016
    Inventors: Nathalie Sophie LETZELTER, Frank HULSKOTTER, Rohan Govind MURKUNDE, Kevin George GOODALL, Marta REINOSO-GARCIA, Dieter Hannu BOECKH, Markus BIEL
  • Publication number: 20140179586
    Abstract: 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: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Nathalie Sophie LETZELTER, Nikola CURCIC, Elena ALDA, Karen Margaret PRESTON, Robby Renilde Francois KEULEERS
  • Publication number: 20140174478
    Abstract: 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: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Applicant: The Procter & Gamble Company
    Inventors: Nathalie Sophie LETZELTER, Sandrine VIALLET, Robby Renilde Francois KEULEERS
  • Publication number: 20140053877
    Abstract: 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: Application
    Filed: July 10, 2013
    Publication date: February 27, 2014
    Inventors: Nathalie Sophie LETZELTER, Alexander Charles HOLLINGSWORTH, Fernando SOLACHE LEON, Victoria WRAY, Neil BRADLEY
  • Publication number: 20140053878
    Abstract: 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: Application
    Filed: July 10, 2013
    Publication date: February 27, 2014
    Inventors: Nathalie Sophie LETZELTER, Alexander Charles HOLLINGSWORTH, Fernando SOLACHE LEON, Victoria WRAY, Neil BRADLEY
  • Patent number: 7074754
    Abstract: 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: Grant
    Filed: February 3, 2005
    Date of Patent: July 11, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Graham Blyth, Andrew Russell Graydon, Nathalie Sophie Letzelter, Glen Steven Ward, Kevin Lee Kott
  • Patent number: 6984618
    Abstract: 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: Grant
    Filed: December 5, 2002
    Date of Patent: January 10, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Stephen Wayne Heinzman, Nathalie Sophie Letzelter, Fiona Susan Williams, Leanne Bolton
  • Patent number: 6881717
    Abstract: 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: Grant
    Filed: March 30, 2000
    Date of Patent: April 19, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Robin Gibson Hall, Nathalie Sophie Letzelter