Patents by Inventor Yingying Pi

Yingying Pi 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: 20230390175
    Abstract: A hair care composition is disclosed comprising an anti-dandruff agent selected from piroctone olamine, climbazole, ketoconazole, selenium sulfide and mixtures thereof, a copolymer comprising acrylamidopropyltrimonium chloride, and a cationic guar polymer having a molecular weight of from 0.3 to 2.5 million Dalton and a cationic degree of substitution of from 0.05 to 0.4, wherein the weight ratio of the amount of the copolymer to the amount of cationic guar polymer is in the range of from 1:10 to 10:1.
    Type: Application
    Filed: December 21, 2021
    Publication date: December 7, 2023
    Applicant: Conopco,Inc. d/b/s Unilever
    Inventors: Jingjing LIU, Yingying PI
  • Patent number: 11672751
    Abstract: A hair care composition is disclosed comprising a cationically modified guar polymer having a cationic degree of substitution of from 0.35 to 0.70, an ethoxylated alkyl sulfate anionic surfactant having a formula RO(CH2CH2O)nSO3M, wherein R is an alkyl or alkenyl group having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, 5 ammonium, substituted ammonium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3 and from 0.01 to 10% by weight of an anti-dandruff agent selected from azole based anti-fungal agents, piroctone olamine, metal pyrithione salts, selenium sulfide or mixtures thereof; wherein the degree of substitution is measured using 1H NMR and the spectrum is recorded at 25° C.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: June 13, 2023
    Assignee: CONOPCO, INC.
    Inventors: Jingjing Liu, Yingying Pi, Raghupathi Subramanian
  • Patent number: 11638685
    Abstract: A hair care composition is disclosed comprising a copolymer, an ethoxylated alkyl sulfate anionic surfactant having a formula RO(CH2CH2O)nSO3M, wherein R is an alkyl or alkenyl having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, ammonium or mixtures thereof; the degree of ethoxylation n is 2, and from 0.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: May 2, 2023
    Assignee: CONOPCO, INC.
    Inventors: Congwei Fei, Yingying Pi, Raghupathi Subramanian
  • Publication number: 20230039909
    Abstract: A hair care composition is disclosed comprising a polyhydroxy fatty acid amide surfactant of general formula (I) wherein R1 is a C1-C4 alkyl groups or hydroxy-substituted C1-C4 alkyl groups; R2CO is a linear or branched, saturated or unsaturated C12-C18 acyl group, a silicone compound, and from 0.01 to 10% by weight of an anti-dandruff agent selected from piroctone olamine, azole based anti-fungal agents and mixtures thereof.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 9, 2023
    Inventors: Yingying PI, Jian LIU
  • Publication number: 20220409506
    Abstract: A hair care composition is disclosed comprising a polyhydroxy fatty acid amide surfactant of general formula (I): wherein R1 is a C1-C4alkyl groups or hydroxy-substituted C1-C4 alkyl groups; R2CO is a linear or branched, saturated or unsaturated C3-C10 acyl group, preferably C8-C10 acyl group, an ethoxylated alkyl sulfate anionic surfactant having a formula R3O(CH2CH2O)nSO3M, wherein R3 is an alkyl or alkenyl having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, ammonium, substituted ammonium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3, and from 0.01 to 10% by weight of an anti-dandruff agent selected from piroctone olamine, azole based anti-fungal agents and mixtures thereof, wherein the weight ratio of the ethoxylated alkyl sulfate anionic surfactant to the polyhydroxy fatty acid amide surfactant ranges from 1:10 to 10:1.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 29, 2022
    Inventors: Jian LIU, Yingying PI
  • Publication number: 20220401327
    Abstract: A hair care composition is disclosed comprising a salt of acyl glycinate, an ethoxylated alkyl sulfate anionic surfactant having a formula R2O(CH2CH2O)nSO3M, wherein R2 is an alkyl or alkenyl group having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, ammonium, substituted ammonium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3; and an anti-dandruff agent selected from piroctone olamine, azole based anti-fungal agents and mixtures thereof; wherein the composition comprises the salt of acyl glycinate and the ethoxylated alkyl sulfate anionic surfactant in a weight ratio of from 1:10 to 1:1.
    Type: Application
    Filed: October 29, 2020
    Publication date: December 22, 2022
    Inventors: Jian LIU, Yingying PI
  • Publication number: 20220265541
    Abstract: A hair care composition is disclosed comprising an anti-dandruff agent selected from piroctone olamine, selenium sulfide and mixtures thereof and a copolymer comprising acrylamidopropyltrimonium chloride, wherein the weight ratio of the amount of the copolymer to the amount of the anti-dandruff agent is in the range of from 1:5 to 1:1.
    Type: Application
    Filed: June 29, 2020
    Publication date: August 25, 2022
    Inventors: Jingjing LIU, Yingying PI, Xia ZHENG
  • Publication number: 20220040076
    Abstract: A hair care composition is disclosed comprising from 0.5 to 45% by weight of a salt of acyl glutamate and an anti-dandruff agent of piroctone olamine, wherein the salt of acyl glutamate and the anti-dandruff agent are present in a weight ratio of from 5:1 to 50:1, and wherein the composition does not comprise other anionic surfactants in addition to the salt of acyl glutamate.
    Type: Application
    Filed: January 6, 2020
    Publication date: February 10, 2022
    Inventors: Shaokun CHANG, Jian LIU, Yingying PI, Xia ZHENG
  • Patent number: 11179309
    Abstract: This invention relates to a hair care composition which provides the desired anti-dandruff efficacy with uniform deposition of the active materials on hair/scalp. This is achieved through a judicious combination of a specific cationic deposition polymer and selective anti-dandruff agent of the right particle size.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: November 23, 2021
    Assignee: Conopco, Inc.
    Inventors: Shaokun Chang, Jingjing Liu, Yingying Pi, Raghupathi Subramanian
  • Publication number: 20200337980
    Abstract: A hair care composition is disclosed comprising a cationically modified guar polymer having a cationic degree of substitution of from 0.35 to 0.70, an ethoxylated alkyl sulfate anionic surfactant having a formula RO(CH2CH2O)nSO3M, wherein R is an alkyl or alkenyl group having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, 5 ammonium, substituted ammonium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3 and from 0.01 to 10% by weight of an anti-dandruff agent selected from azole based anti-fungal agents, piroctone olamine, metal pyrithione salts, selenium sulfide or mixtures thereof; wherein the degree of substitution is measured using 1H NMR and the spectrum is recorded at 25° C.
    Type: Application
    Filed: November 5, 2018
    Publication date: October 29, 2020
    Inventors: Jingjing LIU, Yingying PI, Raghupathi SUBRAMANIAN
  • Publication number: 20200289397
    Abstract: A hair care composition is disclosed comprising a copolymer, an ethoxylated alkyl sulfate anionic surfactant having a formula RO(CH2CH2O)nSO3M, wherein R is an alkyl or alkenyl having from 8 to 18 carbon atoms; M is a solubilising cation comprising sodium, potassium, ammonium or mixtures thereof; the degree of ethoxylation n is 2, and from 0.
    Type: Application
    Filed: November 14, 2018
    Publication date: September 17, 2020
    Inventors: Congwei FEI, Yingying PI, Raghupathi SUBRAMANIAN
  • Patent number: 10463597
    Abstract: Disclosed is a personal care composition comprising cooling active and copolymer comprising acrylamidopropyltrimonium chloride, wherein the weight ratio of the amount of the cooling active to the amount of the copolymer is in the range from 1:5 to 100:1. The copolymer improves deposition of the cooling active during topical application of the product to skin.
    Type: Grant
    Filed: April 28, 2013
    Date of Patent: November 5, 2019
    Assignee: Conopco, Inc.
    Inventors: Amit Jayaswal, Zhengrong Li, Yingying Pi
  • Publication number: 20190192407
    Abstract: The invention provides an antimicrobial personal cleansing composition comprising: (i) an aqueous continuous phase including one or more anionic cleansing surfactants, (ii) a dispersed phase including dispersed particles of zinc pyrithione (ZPT) in combination with one or more additional zinc salts; (iii) a cationic deposition polymer selected from one or more cationic polygalactomannans having an average molecular weight (Mw) of from 1 million to 3 million g/mol and a cationic degree of substitution of from 0.13 to 0.3; (iv) an anionic polymeric rheology modifier selected from one or more carboxylic acid polymers, and (v) a nonionic polymeric rheology modifier selected from one or more nonionic cellulose ethers.
    Type: Application
    Filed: August 4, 2017
    Publication date: June 27, 2019
    Inventors: Leo DERICI, Shaokun CHANG, Yingying PI
  • Publication number: 20180360716
    Abstract: This invention relates to a hair care composition which provides the desired anti-dandruff efficacy with uniform deposition of the active materials on hair/scalp. This is achieved through a judicious combination of a specific cationic deposition polymer and selective anti-dandruff agent of the right particle size.
    Type: Application
    Filed: November 28, 2016
    Publication date: December 20, 2018
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Shaokun CHANG, Jingjing LIU, Yingying PI, Raghupathi SUBRAMANIAN
  • Publication number: 20160279048
    Abstract: A hair care composition is disclosed comprising cationic deposition polymer and discrete dispersed droplets of a water-insoluble conditioning agent, wherein the cationic deposition polymer comprises at least 90% by weight cationically-modified guar by weight of the cationic deposition polymer and wherein the cationically-modified guar comprises first cationically-modified guar polymer having a charge density of greater than 1.2 meq/g and a molecular weight of at least 1 million g/mol, and second cationically-modified guar polymer having a charge density of from 0.8 to 1.2 meq/g and a molecular weight of at least 1 million g/mol.
    Type: Application
    Filed: October 1, 2014
    Publication date: September 29, 2016
    Applicant: Conopco,Inc., d/b/a UNILEVER
    Inventors: Amit JAYASWAL, Yingying PI, Zhengrong LI
  • Publication number: 20150110728
    Abstract: Disclosed is a personal care composition comprising cooling active and copolymer comprising acrylamidopropyltrimonium chloride, wherein the weight ratio of the amount of the cooling active to the amount of the copolymer is in the range from 1:5 to 100:1. The copolymer improves deposition of the cooling active during topical application of the product to skin.
    Type: Application
    Filed: April 26, 2013
    Publication date: April 23, 2015
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Amit Jayaswal, Zhengrong Li, Yingying Pi