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).
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Patent number: 11951196Abstract: 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: GrantFiled: February 15, 2023Date of Patent: April 9, 2024Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Suman Chopra
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Publication number: 20230346660Abstract: 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: ApplicationFiled: August 30, 2021Publication date: November 2, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Lin FEI, Suman CHOPRA
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Publication number: 20230338273Abstract: 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: ApplicationFiled: August 30, 2021Publication date: October 26, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Lin FEI, Suman CHOPRA
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Publication number: 20230320943Abstract: 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: ApplicationFiled: April 6, 2023Publication date: October 12, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Gregory SZEWCZYK, Suman CHOPRA
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Publication number: 20230270637Abstract: 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: ApplicationFiled: August 30, 2021Publication date: August 31, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Lin FEI, Suman CHOPRA
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Publication number: 20230263711Abstract: 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: ApplicationFiled: February 15, 2023Publication date: August 24, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng Pan, Suman Chopra
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Publication number: 20230255865Abstract: 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: ApplicationFiled: August 30, 2021Publication date: August 17, 2023Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Lin FEI, Suman CHOPRA, Pooja KULKARNI
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Patent number: 11602495Abstract: 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: GrantFiled: December 18, 2014Date of Patent: March 14, 2023Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Suman Chopra
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Patent number: 11596593Abstract: 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: GrantFiled: January 22, 2021Date of Patent: March 7, 2023Assignee: Colgate-Palmolive CompanyInventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe
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Publication number: 20220265535Abstract: 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: ApplicationFiled: May 10, 2022Publication date: August 25, 2022Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Suman CHOPRA
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Patent number: 11400032Abstract: 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: GrantFiled: December 19, 2014Date of Patent: August 2, 2022Assignee: Colgate-Palmolive CompanyInventors: Venda Maloney, Suman Chopra, Hallena Strotman, Guisheng Pan
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Patent number: 11324678Abstract: 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: GrantFiled: July 16, 2019Date of Patent: May 10, 2022Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Suman Chopra
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Publication number: 20210401692Abstract: 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: ApplicationFiled: September 10, 2021Publication date: December 30, 2021Applicant: Colgate-Palmolive CompanyInventors: Guisheng PAN, Lin FEI, Suman CHOPRA
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Patent number: 11141364Abstract: 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: GrantFiled: November 30, 2017Date of Patent: October 12, 2021Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Lin Fei, Suman Chopra
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Patent number: 11083674Abstract: 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: GrantFiled: November 29, 2018Date of Patent: August 10, 2021Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Dennis Ontumi, Lin Fei, Suman Chopra, Tatiana Brinzari, Michael Stranick, Long Pan
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Publication number: 20210137815Abstract: 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: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Applicant: Colgate-Palmolive CompanyInventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe
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Patent number: 10959936Abstract: 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: GrantFiled: July 21, 2020Date of Patent: March 30, 2021Assignee: Colgate-Palmolive CompanyInventors: Lynette A. Zaidel, Guisheng Pan, Suman K. Chopra, Prakasarao Mandadi, Michael Prencipe
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Patent number: 10925818Abstract: 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: GrantFiled: November 30, 2017Date of Patent: February 23, 2021Assignee: Colgate-Palmolive CompanyInventors: Guisheng Pan, Lin Fei, Suman Chopra
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Publication number: 20200345615Abstract: 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: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: Colgate-Palmolive CompanyInventors: Lynette A. ZAIDEL, Guisheng PAN, Suman K. CHOPRA, Prakasarao MANDADI, Michael PRENCIPE
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Patent number: 10758472Abstract: 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: GrantFiled: February 20, 2018Date of Patent: September 1, 2020Assignee: Colgate-Palmolive CompanyInventors: Lynette Zaidel, Guisheng Pan, Suman Chopra, Prakasarao Mandadi, Michael Prencipe