Patents by Inventor Lin Fei

Lin Fei 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: 20190159983
    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: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Guisheng Pan, Lin Fei, Suman Chopra
  • Patent number: 10299998
    Abstract: Provided is a single phase oral care composition having a whitening agent; a first abrasive selected from calcium pyrophosphate, calcium carbonate, and dicalcium phosphate; a second abrasive that may include sodium metaphosphate; an anticalculus agent; and a substantially anhydrous carrier that may include an ethylene oxide/propylene oxide copolymer. In the composition, a wt % of the second abrasive is equal to or greater than a wt % of the first abrasive.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: May 28, 2019
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Suman Chopra, Prakasarao Mandadi
  • Publication number: 20190053992
    Abstract: Methods for preparing high loading core shell silica (CSS) particles, or CSS particles having a relatively greater amount of surface active silicate groups than CSS particles prepared according to conventional methods is provided. The method may include contacting silica particles with a base having a first metal ion to produce core shell silica particles. Each of the core shell silica particles may include a silica core and a silicate of the first metal ion etched on a surface of the silica core. The method may also include contacting each of the core shell silica particles having the silicate of the first metal ion with an acidic aqueous solution including a metal salt having a second metal ion to produce core shell silica particles including the silica core and a silicate of the second metal ion on the surface of the silica core.
    Type: Application
    Filed: August 18, 2017
    Publication date: February 21, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Saide TANG, Lin FEI, Suman CHOPRA
  • Patent number: 10149804
    Abstract: Described herein are oral care compositions comprising a thickening system comprising a first thickening agent and a second thickening agent, wherein the first thickening agent comprises greater than 15 wt % of the mixture of the first and second thickening agents in the thickening system.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 11, 2018
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Prakasarao Mandadi, Suman Chopra, Michael Prencipe
  • Patent number: 10076476
    Abstract: Provided is an oral care composition comprising a peroxide source, a polyhydric alcohol and a surfactant system having an HLB value of from 4 to 13, wherein the combined amount of the polyhydric alcohol and the surfactant system is from 60 weight % to 95 weight % by total weight of the composition, and wherein the weight ratio of the polyhydric alcohol to the surfactant system is from 9:1 to 1:4. The composition is resistant to peroxide decomposition.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 18, 2018
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Suman Chopra
  • Patent number: 10071159
    Abstract: Described herein are compositions comprising an active compound from an extract of magnolia, or a derivative thereof; and a non-surfactant electrolyte in an amount effective to stabilize the composition, and methods of making and using the same.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 11, 2018
    Assignee: Colgate-Palmolive Company
    Inventors: Shyamala Pillai, Lin Fei, Guofeng Xu
  • Patent number: 9999585
    Abstract: Described herein are oral care compositions comprising (i) a whitening complex comprising crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, and (ii) a hydrogen peroxide stabilizing agent comprising a clay comprising a lithium magnesium silicate or a sodium magnesium silicate, or a combination thereof.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 19, 2018
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Prakasarao Mandadi, Suman Chopra
  • Publication number: 20170326043
    Abstract: Disclosed is a stable whitening dentifrice composition including an orally acceptable vehicle including a whitening agent, and a colorant encapsulated by a protective barrier, wherein the protective barrier suppresses migration of the colorant into the orally acceptable vehicle for a duration of time of at least about 1 day. Methods of preparing the whitening dentifrice composition and using the composition to whiten tooth surfaces are also disclosed.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 16, 2017
    Applicant: Colgate-Palmolive Company
    Inventors: Lin FEI, Suman CHOPRA, Prakasarao MANDADI
  • Publication number: 20170312195
    Abstract: Provided is an oral care composition comprising a peroxide source, a polyhydric alcohol and a surfactant system having an HLB value of from 4 to 13, wherein the combined amount of the polyhydric alcohol and the surfactant system is from 60 weight % to 95 weight % by total weight of the composition, and wherein the weight ratio of the polyhydric alcohol to the surfactant system is from 9:1 to 1:4. The composition is resistant to peroxide decomposition.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 2, 2017
    Applicant: Colgate-Palmolive Company
    Inventors: Lin FEI, Suman CHOPRA
  • Patent number: 9801940
    Abstract: Disclosed herein are methods of enhancing the solubility and delivery of one or more active ingredients found in magnolia extract, or a synthetic analog thereof, in an oral composition.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: October 31, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Ravi Subramanyam, Guofeng Xu
  • Patent number: 9795548
    Abstract: Described herein are compositions comprising isopropyl magnolol; a surfactant system; and an orally acceptable carrier, together with methods of making and using the same.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 24, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Ying Yang, Stanistav Jaracz, Geofeng Xu
  • Publication number: 20170296447
    Abstract: Described herein are oral care compositions comprising a thickening system comprising a first thickening agent and a second thickening agent, wherein the first thickening agent comprises greater than 15 wt % of the mixture of the first and second thickening agents in the thickening system.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 19, 2017
    Applicant: Colgate-Palmolive Company
    Inventors: Lin FEI, Prakasarao MANDADI, Suman CHOPRA, Michael PRENCIPE
  • Patent number: 9724280
    Abstract: Described herein are oral care compositions (for tooth whitening) comprising a thickening system comprising a first thickening agent and a second thickening agent, wherein the first thickening agent comprises greater than 15 wt % of the mixture of the first and second thickening agents in the thickening system. The compositions comprise crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide with a thickening system comprising silica and crosslinked polyvinylpyrrolidone.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: August 8, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Prakasarao Mandadi, Suman Chopra, Michael Prencipe
  • Publication number: 20170212040
    Abstract: This application is directed to methods of assessing polymer deposition on dental surfaces using near infrared spectroscopy, providing a rapid and efficient method to screen for and identify optimal polymers for use in oral care formulations, (i) near infra red (IR) absorption of a dental substrate is measured in the absence of a polymer under test, and subsequently of the test sample comprising the dental substrate contacted with the test polymer. After washing or rinsing the test sample near IR of it is determined again (iii). The IR absorption of the test polymer itself is also measured (ii). Through the comparison of the three measurements (i), (ii), and (iii) the degree of deposition and retention of the test polymer on the test sample is determined.
    Type: Application
    Filed: July 24, 2014
    Publication date: July 27, 2017
    Applicant: Colgate-Palmolive Company
    Inventors: Deborah Ann PERU, Rensl DILLON, Shira PILCH, Venda Porter MALONEY, Lin FEI
  • Publication number: 20170143599
    Abstract: Provided is a single phase oral care composition having a whitening agent; a first abrasive selected from calcium pyrophosphate, calcium carbonate, and dicalcium phosphate; a second abrasive that may include sodium metaphosphate; an anticalculus agent; and a substantially anhydrous carrier that may include an ethylene oxide/propylene oxide copolymer. In the composition, a wt % of the second abrasive is equal to or greater than a wt % of the first abrasive.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 25, 2017
    Applicant: Colgate-Palmolive Company
    Inventors: Lin Fei, Suman Chopra, Prakasarao Mandadi
  • Patent number: 9561193
    Abstract: Described herein are compositions comprising antibacterially effective amounts of a compound of Formula (I): or a salt thereof in which R1 and R2 are each independently (C1-C6) alkyl or (C2 C6) alkenyl, and a carrier. Suitable carriers include orally acceptable carriers and dermatologically acceptable carriers. The disclosed compositions include oral care and personal care compositions useful for treating or preventing oral and skin conditions, respectively.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: February 7, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Neelima Utgikar, Guofeng Xu, Ying Yang, Lin Fei
  • Publication number: 20160303011
    Abstract: Described herein are oral care compositions comprising a crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, together with a fatty amphiphile; including some embodiments which further comprise a calcium abrasive.
    Type: Application
    Filed: December 5, 2013
    Publication date: October 20, 2016
    Inventors: Guisheng Pan, Prakasarao Mandadi, Lin Fei, Suman Kumar Chopra
  • Publication number: 20160296434
    Abstract: A tooth whitening composition containing a complex of a triarylmethane dye in with a magnesium alkali metal silicate clay in combination with an orally acceptable carrier.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 13, 2016
    Applicant: Colgate-Palmolive Company
    Inventors: Lin Fei, Suman K. Chopra
  • Patent number: 9439843
    Abstract: The invention provides oral care compositions comprising isobutyl magnolol and propylene glycol monolaurate, together with methods of making and using the same. Also described is a method of enhancing the solubility of isobutyl magnolol in an oral care composition comprising effective amount of propylene glycol monolaurate. The composition is for use in the treatment of caries, gingivitis, periodontitis, tooth yellowing and halitosis.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 13, 2016
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Stanislav Jaracz, Ying Yang, Guofeng Xu
  • Patent number: 9370472
    Abstract: Described herein are oral care compositions comprising (i) a whitening complex comprising crosslinked polyvinylpyrrolidone complexed with hydrogen peroxide, and (ii) a thickening agent comprising a crosslinked polyvinylpyrrolidone, the composition further comprising (iii) a nonionic rheology modifier selected from at least one of a polysorbate surfactant and an alkylene glycol ester of a C6-C12 fatty acid, or a mixture thereof.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 21, 2016
    Assignee: Colgate-Palmolive Company
    Inventors: Lin Fei, Suman Chopra