Patents by Inventor Guisheng Pan

Guisheng Pan 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: 11951196
    Abstract: The present invention relates to core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate, the core shell silica particles prepared by: i) admixing an amount of silica particles in water with an amount of a base, wherein the base comprises a monovalent metal ion, to produce core shell silica particles, each core shell silica particle comprising a silica core, and a surface of the silica core etched with a silicate of the monovalent metal ion; and ii) reacting the core shell silica particles formed in step i) with a metal salt comprising a second metal ion, to form core shell silica particles comprising silicate of the second metal ion on the surface of the silica core.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: April 9, 2024
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Suman Chopra
  • Publication number: 20230346660
    Abstract: Described herein are nonaqueous oral care compositions comprising an orally acceptable vehicle, a whitening agent; and one or more gelling agents wherein the one or more gelling agents comprises a salt of a fatty acid; along with methods of making and using same.
    Type: Application
    Filed: August 30, 2021
    Publication date: November 2, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Lin FEI, Suman CHOPRA
  • Publication number: 20230338273
    Abstract: Described herein are nonaqueous oral care compositions comprising an orally acceptable vehicle, a whitening agent; and a gelling system comprising one or more gelling agents wherein the one or more gelling agents comprise a monovalent salt of a fatty acid and a divalent salt of a fatty acid; along with methods of making and using same.
    Type: Application
    Filed: August 30, 2021
    Publication date: October 26, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Lin FEI, Suman CHOPRA
  • Publication number: 20230320943
    Abstract: Solid oral care compositions and methods for the same are disclosed. The oral care composition may include an orally acceptable vehicle and one or more whitening agents. The oral care composition may be a toothpaste in the form of a solid film. The one or more whitening agents may include at least one of a source of hydrogen peroxide, a non-peroxide bleaching agent, or a combination thereof. The method for preparing the oral care composition may include contacting the orally acceptable vehicle, the one or more whitening agents, and water with one another to prepare a slurry, and preparing the solid film with the slurry.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Gregory SZEWCZYK, Suman CHOPRA
  • Publication number: 20230270637
    Abstract: Described herein are nonaqueous oral care compositions comprising an orally acceptable vehicle, a whitening agent; and one or more gelling agents wherein the one or more gelling agents comprises a salt of a fatty acid; along with methods of making and using same.
    Type: Application
    Filed: August 30, 2021
    Publication date: August 31, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Lin FEI, Suman CHOPRA
  • Publication number: 20230263711
    Abstract: The present invention relates to core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate, the core shell silica particles prepared by: i) admixing an amount of silica particles in water with an amount of a base, wherein the base comprises a monovalent metal ion, to produce core shell silica particles, each core shell silica particle comprising a silica core, and a surface of the silica core etched with a silicate of the monovalent metal ion; and ii) reacting the core shell silica particles formed in step i) with a metal salt comprising a second metal ion, to form core shell silica particles comprising silicate of the second metal ion on the surface of the silica core.
    Type: Application
    Filed: February 15, 2023
    Publication date: August 24, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Suman Chopra
  • Publication number: 20230255865
    Abstract: Described herein are high water oral care composition comprising an orally acceptable vehicle; a thickening system; one or more abrasives; and one or more gelling agents, wherein the one or more gelling agents comprise a salt of a fatty acid; and wherein the salt is a monovalent salt, a divalent salt, or a combination thereof. Also disclosed are methods of making and using the same.
    Type: Application
    Filed: August 30, 2021
    Publication date: August 17, 2023
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Lin FEI, Suman CHOPRA, Pooja KULKARNI
  • Patent number: 11602495
    Abstract: The present invention relates to core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate, the core shell silica particles prepared by: i) admixing an amount of silica particles in water with an amount of a base, wherein the base comprises a monovalent metal ion, to produce core shell silica particles, each core shell silica particle comprising a silica core, and a surface of the silica core etched with a silicate of the monovalent metal ion; and ii) reacting the core shell silica particles formed in step i) with a metal salt comprising a second metal ion, to form core shell silica particles comprising silicate of the second metal ion on the surface of the silica core.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: March 14, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Suman Chopra
  • Patent number: 11596593
    Abstract: Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: March 7, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe
  • Publication number: 20220265535
    Abstract: This invention provides core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core etched with group I metal silicate. These core shell silica particles have high surface charge density and anti-bacterial activity. Also provided are compositions comprising core shell silica particles, process of making the core shell silica particles and methods of reducing or inhibiting bacterial activity by administering the core shell silica particles or compositions thereof.
    Type: Application
    Filed: May 10, 2022
    Publication date: August 25, 2022
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Suman CHOPRA
  • Patent number: 11400032
    Abstract: The present invention provides a tooth whitening oral care composition comprising: (i) a dye having a blue to blue-violet color with a hue angle in the CIELAB system ranging from 200 to 320 degrees; (ii) core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate; (iii) an orally acceptable carrier vehicle comprising a non-aqueous solvent; and wherein the composition comprises water in an amount of from 3 weight % to 30 weight %.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: August 2, 2022
    Assignee: Colgate-Palmolive Company
    Inventors: Venda Maloney, Suman Chopra, Hallena Strotman, Guisheng Pan
  • Patent number: 11324678
    Abstract: This invention provides core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core etched with group I metal silicate. These core shell silica particles have high surface charge density and anti-bacterial activity. Also provided are compositions comprising core shell silica particles, process of making the core shell silica particles and methods of reducing or inhibiting bacterial activity by administering the core shell silica particles or compositions thereof.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: May 10, 2022
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Suman Chopra
  • Publication number: 20210401692
    Abstract: Oral care compositions and methods for the same are provided herein. The oral care composition may include an orally acceptable vehicle, a peroxide whitening agent, and one or more gelling agents. The gelling agents may include a fatty acid. The gelling agents may be free or substantially free of fatty alcohols. The gelling agents may include at least one of palmitic acid, stearic acid, or mixtures thereof.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng PAN, Lin FEI, Suman CHOPRA
  • Patent number: 11141364
    Abstract: Oral care compositions and methods for the same are provided herein. The oral care composition may include an orally acceptable vehicle, a peroxide whitening agent, and one or more gelling agents. The gelling agents may include a fatty acid. The gelling agents may be free or substantially free of fatty alcohols. The gelling agents may include at least one of palmitic acid, stearic acid, or mixtures thereof.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 12, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Lin Fei, Suman Chopra
  • Patent number: 11083674
    Abstract: Compounds and methods for preparing and using the compounds are disclosed herein. The method for preparing the compounds may include contacting a metal ion or salt thereof with an alkali metal polyphosphate salt in an aqueous medium. The method may also include adding a base to increase a pH of the aqueous medium.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: August 10, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Dennis Ontumi, Lin Fei, Suman Chopra, Tatiana Brinzari, Michael Stranick, Long Pan
  • Publication number: 20210137815
    Abstract: Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 13, 2021
    Applicant: Colgate-Palmolive Company
    Inventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe
  • Patent number: 10959936
    Abstract: Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: March 30, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Lynette A. Zaidel, Guisheng Pan, Suman K. Chopra, Prakasarao Mandadi, Michael Prencipe
  • Patent number: 10925818
    Abstract: Anhydrous oral care compositions and methods for making and using the same are described herein. The anhydrous oral care compositions may include an orally acceptable vehicle, a peroxide whitening agent, and an abrasive system. The abrasive system may include at least one abrasive having a pellicle cleaning ratio (PCR) greater than or equal to 100.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: February 23, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Lin Fei, Suman Chopra
  • Publication number: 20200345615
    Abstract: Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Lynette A. ZAIDEL, Guisheng PAN, Suman K. CHOPRA, Prakasarao MANDADI, Michael PRENCIPE
  • Patent number: 10758472
    Abstract: Oral care compositions comprising: (a) a peroxide complex comprising a peroxide component and an N-vinyl heterocyclic polymer (e.g., poly-N-vinyl polylactam, or poly-N-vinyl-polyimide); (b) a whitening agent (e.g., hydrogen peroxide); and (c) an orally acceptable carrier. In one embodiment, the carrier comprises a film forming material. Methods are also provided for making an oral care composition comprising: (a) mixing a whitening agent, silicone adhesive and carrier fluid to form a homogenous mixture; (b) adding a peroxide complex to said homogenous mixture, wherein said complex comprises hydrogen peroxide and an N-vinyl heterocyclic polymer; and (c) mixing under vacuum.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: September 1, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe