Patents by Inventor Hélder Daniel Peixoto da Silva

Hélder Daniel Peixoto da Silva 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).

  • Patent number: 11814605
    Abstract: The invention provides a surfactant system, for use in household detergent compositions, which is a mixture of: (i) at least one sulfonate-functionalized alkyl polyglycoside of general formula (I): R—O-(G)n-(D)??(I) in which: R represents a straight or branched chain monovalent hydrocarbyl radical having from 6 to 22 carbon atoms; G represents a residue of a reducing saccharide, connected to R—O by means of an ethereal O-glycosidic bond; n represents a number from 1 to 10; and D represents a —CH2CH(OH)CH2—SO3M group connected to an oxygen atom of G, where M is selected from H or a monovalent cation selected from Na, K, or NH4; and (ii) at least one ethoxylated fatty acid sorbitan ester of general formula (II): Sorb-(EOn1R1)(EOn2R2)(EOn3R3)(EOn4R4)??(II) in which: Sorb represents a residue obtained by removing four hydroxyl H atoms from sorbitan; EO represents an ethyleneoxy group; R1, R2, R3 and R4 are each independently selected from H or a —C(O)R5 group in which R5 is selected from straight or b
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: November 14, 2023
    Assignee: Conopco Inc.
    Inventors: Hélder Daniel Peixoto Da Silva, Andrew Philip Parker, Craig Warren Jones, Anthony Mckee
  • Publication number: 20220195335
    Abstract: The invention provides a surfactant system, for use in household detergent compositions, which is a mixture of: (i) at least one sulfonate-functionalized alkyl polyglycoside of general formula (I): R—O-(G)n-(D) ??(I) in which: p0 R represents a straight or branched chain monovalent hydrocarbyl radical having from 6 to 22 carbon atoms; G represents a residue of a reducing saccharide, connected to R—O by means of an ethereal O-glycosidic bond; n represents a number from 1 to 10; and D represents a —CH2CH(OH)CH2—SO3M group connected to an oxygen atom of G, where M is selected from H or a monovalent cation selected from Na, K, or NH4; and (ii) at least one ethoxylated fatty acid sorbitan ester of general formula (II): Sorb-(EOn1R1)(EOn2R2)(EOn3R3)(EOn4R4) ??(II) in which: Sorb represents a residue obtained by removing four hydroxyl H atoms from sorbitan; EO represents an ethyleneoxy group; R1, R2, R3 and R4are each independently selected from H or a —C(O)R5 group in which R5 is selected from straight o
    Type: Application
    Filed: April 20, 2020
    Publication date: June 23, 2022
    Applicant: Conopco Inc., d/b/a UNILEVER
    Inventors: Hélder Daniel Peixoto Da Silva, Andrew Philip Parker, Craig Warren Jones, Anthony Mckee
  • Publication number: 20220177811
    Abstract: The invention provides a detergent composition for the non-oxidative laundering of fabric stains, the composition comprising: (a) from 0.1 to 10% (by weight based on the total weight of the composition) of N,N?-bis(2-hydroxybenzyl)-ethylenediamine-N,N?-diacetic acid (HBED) and/or salts thereof, and (b) from 3 to 80% (by weight based on the total weight of the composition) of one or more detersive surfactants.
    Type: Application
    Filed: March 25, 2020
    Publication date: June 9, 2022
    Applicant: Conopco Inc., d/b/a UNILEVER
    Inventors: Katherine Mary THOMPSON, Hélder Daniel Peixoto Da SILVA
  • Publication number: 20210340465
    Abstract: The invention provides a detergent composition for the non-oxidative laundering of fabric stains, the composition comprising: (a) from 0.1 to 10% (by weight based on the total weight of the composition) of one or more deferoxamines and/or acid addition salts thereof; and (b) from 3 to 80% (by weight based on the total weight of the composition) of one or more detersive surfactants. The invention also provides a method for the non-oxidative laundering of fabric stains, comprising diluting a dose of the detergent composition defined above to obtain a wash liquor, and washing the stained fabric with the wash liquor so formed.
    Type: Application
    Filed: October 3, 2019
    Publication date: November 4, 2021
    Applicant: Conopco Inc., d/b/a UNILEVER
    Inventors: Hélder Daniel Peixoto da Silva, Katherine Mary Thompson