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: 20220325459
    Abstract: A water use management system may be installed in a setting that contains a primary infrastructure for water use to provide an alternate, modular infrastructure for water use. Fresh water used at various points of use, such as a shower or sink, may be diverted into the modular infrastructure prior to draining into the primary infrastructure. Once diverted, the precedent use water is received at a reservoir system where it is treated for a subsequent use. Treatment may include filtration and/or chemical treatment, and may be based upon sensor feedback from the reservoir system. Once treated, the water is ready for subsequent use and may flow from the reservoir system, via the modular infrastructure, to a subsequent point of use, such as a toilet.
    Type: Application
    Filed: March 11, 2022
    Publication date: October 13, 2022
    Inventors: Anna L. Connolly, Colin John Clarke, Robert Webbink, Nathalie Sophie Letzelter
  • Publication number: 20220316190
    Abstract: A water use management system may be installed in a setting that contains a primary infrastructure for water use to provide an alternate, modular infrastructure for water use. Fresh water used at various points of use, such as a shower or sink, may be diverted into the modular infrastructure prior to draining into the primary infrastructure. Once diverted, the precedent use water is received at a reservoir system where it is treated for a subsequent use. Treatment may include filtration and/or chemical treatment, and may be based upon sensor feedback from the reservoir system. Once treated, the water is ready for subsequent use and may flow from the reservoir system, via the modular infrastructure, to a subsequent point of use, such as a toilet.
    Type: Application
    Filed: March 11, 2022
    Publication date: October 6, 2022
    Inventors: Anna L. Connolly, Colin John Clarke, Robert Webbink, Nathalie Sophie Letzelter
  • Patent number: 11414629
    Abstract: A method of washing dishware in a dishwasher comprising the step of delivering into the dishwasher: a) a first composition comprising oxygen bleach and substantially free of enzymes; followed by b) a second composition comprising enzymes wherein the first composition has a pH of at least 11 and the pH of the first composition is at least 1 pH unit greater the pH of the second composition wherein the pH is measured at wash concentration at 20° C.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 16, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Shari Joy Soper, Sylvan Amos, Kristopher L. Delgado, Elliott Stowe, Sarah Galea
  • Publication number: 20200369989
    Abstract: A method of washing dishware in a dishwasher comprising the step of delivering into the dishwasher: a) a first composition comprising oxygen bleach and substantially free of enzymes; followed by b) a second composition comprising enzymes wherein the first composition has a pH of at least 11 and the pH of the first composition is at least 1 pH unit greater the pH of the second composition wherein the pH is measured at wash concentration at 20° C.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 26, 2020
    Inventors: Nathalie Sophie LETZELTER, Shari Joy SOPER, Sylvan AMOS, Kristopher L. DELGADO, Elliott STOWE, Sarah GALEA
  • Patent number: 10472597
    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: Grant
    Filed: July 26, 2016
    Date of Patent: November 12, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Elena Alda
  • Patent number: 10377969
    Abstract: A process for making a particle, the particle includes: a) a nitrogen-containing cleaning-active in the form of a salt wherein the salt has a pH in 1% weight aqueous solution measured at 25° C. greater than 9; and b) a malodor-reducing agent including an acid group wherein the process includes the step of adding the malodor-reducing agent to the nitrogen-containing cleaning-active wherein the malodor-reducing agent is added in the absence of water.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 13, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Julie Ellis
  • Publication number: 20190194576
    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: February 26, 2019
    Publication date: June 27, 2019
    Inventors: Nathalie Sophie LETZELTER, Laura Jane CAUFIELD, Kevin Graham BLYTH
  • Patent number: 10301578
    Abstract: A method of cleaning a soiled dishware load in an automatic dishwashing machine including the step of subjecting the load to a wash liquor including at least 700 ppm of an aminocarboxylated complexing agent and wherein the liquor is free of phosphate and free of dispersant polymer.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 28, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Rachel Elizabeth Martin
  • Patent number: 10287533
    Abstract: An automatic dishwashing cleaning composition including a dispersant polymer and a surface-modification surface-substantive polymer wherein the composition leaves glass after being washed with the composition in an automatic dishwasher with a contact angle with deionised water of less than about 50° and wherein the surface-modification surface-substantive polymer has a rivulet forming effect on water drainage from glass.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 14, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Glenn Steven Ward, Stefano Scialla, James Elliot Goodwin, Frank Hulskotter, Martin Ruebenacker, Aaron Flores-Figueroa
  • Publication number: 20190100867
    Abstract: A method of drying a wet fabric in a dryer including the steps of; a) attaching a humidity sensor to the fabric; b) placing the fabric in the dryer; c) starting the drying process; d) measuring the equilibrium relative humidity of the fabric using the humidity sensor and e) stopping the drying process when a predetermined level of the equilibrium relative humidity is achieved.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 4, 2019
    Inventor: Nathalie Sophie LETZELTER
  • Patent number: 10160937
    Abstract: Aqueous formulation with a content of (A) and (B) in the range of 40% to 60%, containing (A) a complexing agent selected from methylglycine diacetic acid (MGDA) that is at least partially neutralized with alkali metal, and at least one complexing agent other than MGDA selected from (B) glutamic acid diacetic acid (GLDA) that is at least partially neutralized with alkali metal, and, optionally, (C) a polymer being selected from polyamines, the N atoms being partially or fully substituted with CH2COOH groups, partially or fully neutralized with alkali metal cations, and, optionally, (D) at least one alkali metal salt of an organic acid, said acid being selected from mono- and dicarboxylic acids, wherein the weight ratio of complexing agent (A) to complexing agent (B) is in the range of from 10:1 to 1:10.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 25, 2018
    Assignee: BASF SE
    Inventors: Marta Reinoso Garcia, Markus Christian Biel, Dieter Boeckh, Nathalie Sophie Letzelter, Rohan Govind Murkunde, Frank Huelskoetter, Kevin George Goodall
  • Publication number: 20180355291
    Abstract: The present invention is directed towards an aqueous solution comprising (i) in the range of from 45 percent by weight to 60 percent by weight based on the total weight of the solution of at least one complexing agent (A), selected from the group consisting of methylglycine diacetic acid and its respective mono-, di-, or trialkali metal and mono-, di-or triammonium salts, and glutamic acid diacetic acid, and its respective mono-, di-, tri-or tetraalkali metal and mono-, di-, tri-or tetraammonium salts, (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, said aqueous solution being stable for at least one week.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 13, 2018
    Applicant: BASF SE
    Inventors: Marta REINOSO GARCIA, Nathalie Sophie LETZELTER, Frank HUELSKOETTER, Rohan Govind MURKUNDE, Kevin George GOODAL
  • Patent number: 10047323
    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: Grant
    Filed: January 28, 2016
    Date of Patent: August 14, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Ashmita Randhawa, Sandrine Annette Henriette Viallet
  • Patent number: 9951304
    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: Grant
    Filed: December 12, 2013
    Date of Patent: April 24, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Nathalie Sophie Letzelter, Nikola Curcic, Elena Alda, Karen Margaret Preston, Robby Renilde Francois Keuleers
  • Publication number: 20180105770
    Abstract: A phosphate-free automatic dishwashing detergent composition in unit-dose form having a weight of from about 12 to about 22 grams, the composition including: i) from about 2 to about 4.5 grams of a complexing agent selected from the group consisting of methyl glycine diacetic acid, its salts and derivatives thereof, glutamic-N,N-diacetic acid, its salts and derivatives thereof, iminodisuccinic acid, its salts and derivatives thereof, carboxy methyl inulin, its salts and derivatives thereof, and mixtures thereof; ii) from about 1 mg to about 3.5 mg of active amylase; iii) from about 5 mg to about 20 mg of active protease; iv) from about 1 to about 4 grams of bleach; and about 0.2 to about 0.5 grams a sulfonated polymer.
    Type: Application
    Filed: October 18, 2017
    Publication date: April 19, 2018
    Inventors: Serdar ACIKALIN, Nilgun Esin AKSOY ABACI, Nathalie Sophie LETZELTER, Rachel Elizabeth MARTIN, Joke GOVAERTS
  • Publication number: 20180010072
    Abstract: A process for making a particle, the particle includes: a) a nitrogen-containing cleaning-active in the form of a salt wherein the salt has a pH in 1% weight aqueous solution measured at 25° C. greater than 9; and b) a malodour-reducing agent including an acid group wherein the process includes the step of adding the malodour-reducing agent to the nitrogen-containing cleaning-active wherein the malodour-reducing agent is added in the absence of water.
    Type: Application
    Filed: July 7, 2017
    Publication date: January 11, 2018
    Inventors: Nathalie Sophie LETZELTER, Julie ELLIS
  • Publication number: 20180002643
    Abstract: Aqueous formulation with a content of (A) and (B) in the range of 40% to 60%, containing (A) a complexing agent selected from methylglycine diacetic acid (MGDA) that is at least partially neutralized with alkali metal, and at least one complexing agent other than MGDA selected from (B) glutamic acid diacetic acid (GLDA) that is at least partially neutralized with alkali metal, and, optionally, (C) a polymer being selected from polyamines, the N atoms being partially or fully substituted with CH2COOH groups, partially or fully neutralized with alkali metal cations, and, optionally, (D) at least one alkali metal salt of an organic acid, said acid being selected from mono- and dicarboxylic acids, wherein the weight ratio of complexing agent (A) to complexing agent (B) is in the range of from 10:1 to 1:10.
    Type: Application
    Filed: November 20, 2015
    Publication date: January 4, 2018
    Inventors: Marta REINOSO GARCIA, Markus Christian BIEL, Dieter BOECKH, Nathalie Sophie LETZELTER, Rohan Govind MURKUNDE, Frank HUELSKOETTER, Kevin George GOODAL
  • Publication number: 20170355929
    Abstract: An automatic dishwashing cleaning composition including a dispersant polymer and a surface-modification surface-substantive polymer wherein the composition leaves glass after being washed with the composition in an automatic dishwasher with a contact angle with deionised water of less than about 50° and wherein the surface-modification surface-substantive polymer has a rivulet forming effect on water drainage from glass.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 14, 2017
    Inventors: Nathalie Sophie LETZELTER, Glenn Steven WARD, Stefano SCIALLA, James Elliot GOODWIN, Frank HULSKOTTER, Martin RUEBENACKER, Aaron FLORES-FIGUERO
  • Publication number: 20170292094
    Abstract: A method of cleaning a soiled dishware load in an automatic dishwashing machine including the step of subjecting the load to a wash liquor including at least 700 ppm of an aminocarboxylated complexing agent and wherein the liquor is free of phosphate and free of dispersant polymer.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 12, 2017
    Inventors: Nathalie Sophie LETZELTER, Rachel Elizabeth MARTIN
  • 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