Patents by Inventor Ravi Subramanyam

Ravi Subramanyam 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).

  • Processes for Making Magnolol Derivatives
    Publication number: 20150361017
    Abstract: Described herein are high yield methods for making magnolol derivatives, together with novel intermediates and uses thereof.
    Type: Application
    Filed: January 23, 2013
    Publication date: December 17, 2015
    Applicant: Colgate-Palmolive Company
    Inventors: Basi V. Subba Reddy, Ravi Subramanyam, Shashank Potnis, Jhillu Singh Yadav
  • Chalcones as enhancer of antimicrobial agents
    Patent number: 9192589
    Abstract: Compounds are described that are effective in enhancing the efficacy of antimicrobial agents. Also described are methods of using such compounds and compositions that include such compounds. The composition includes a chalcone compound and, optionally, an antimicrobial agent.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 24, 2015
    Assignees: Colgate-Palmolive Company, Council of Scientific and Industrial Research
    Inventors: Ravi Subramanyam, Laurence Du-Thumm, Ghulam Nabi Qazi, Inshad Ali Khan, Krishan Avtar Suri, Naresh Kumar Satti, Furqan Ali, Nitin Pal Kalia
  • Oral Gel for Relief of Tooth Pain
    Publication number: 20150313955
    Abstract: Disclosed herein are orally acceptable topical analgesic gels comprising a mixture of analgesic oils comprising (a) clove oil and/or eugenol, (b) a cooling agent, and (c) camphor; in an orally acceptable gel base, the gel base providing controlled release of the mixture of analgesic oils following application to a tooth; together with methods of making and using the same.
    Type: Application
    Filed: March 7, 2013
    Publication date: November 5, 2015
    Inventors: Shashank Potnis, Ravi Subramanyam, Rajitha Nair
  • Process of producing arginine employing ATCC 21831 or ATCC 21493 in an afermantation medium comprising cassava bagasse or jackfruit seed as a carbon source
    Patent number: 9150892
    Abstract: Disclosed are processes for producing Arginine by fermentation in which sugars obtained by enzymatic starch hydrolysis from inexpensive starch containing agro-wastes, such as Cassava bagasse and Jackfruit seed powder, are fermented in the presence of microorganisms to produce a fermentated liquor containing Arginine, and recovering Arginine from the liquor. The process can economically be scaled up for the production of Arginine from unrefined sugar sources as it produced Arginine in higher yields, when compared to more expensive synthetic carbon sources, like dextrose or sucrose.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: October 6, 2015
    Assignees: Colgate-Palmolive Company, Council of Scientific and Industrial Research
    Inventors: Ashok Pandey, K. Madhavan Nampoothiri, Ravi Subramanyam
  • Oral care compositions
    Patent number: 8956592
    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: February 17, 2015
    Assignee: Colgate-Palmolive Company
    Inventors: Ying Yang, Shyamala Pillai, Lin Fei, Ravi Subramanyam, Guofeng Xu
  • Analysis of substrates having agents deposited thereon
    Patent number: 8895929
    Abstract: Improved analytical, diagnostic, monitoring, and other methods (and their associated devices) for evaluating the extent of deposition of an agent onto a substrate are described. Exemplary methods may be used in the in the monitoring of the dental health of patients or in the fast, efficient screening and/or characterization of formulations in terms of their use for depositing oral actives onto tooth surfaces. The methods involve the direct or in situ analysis of substrates, onto which agents are deposited, using Near-IR spectroscopy and/or UV spectroscopy.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 25, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Jennifer Gronlund, Guofeng Xu, Deborah A. Peru, Ravi Subramanyam
  • ANALYSIS OF SUBSTRATES HAVING AGENTS DEPOSITED THEREON
    Publication number: 20140312232
    Abstract: Improved analytical, diagnostic, monitoring, and other methods (and their associated devices) for evaluating the extent of deposition of an agent onto a substrate are described. Exemplary methods may be used in the in the monitoring of the dental health of patients or in the fast, efficient screening and/or characterization of formulations in terms of their use for depositing oral actives onto tooth surfaces. The methods involve the direct or in situ analysis of substrates, onto which agents are deposited, using Near-IR spectroscopy and/or UV spectroscopy.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 23, 2014
    Inventors: Jennifer Gronlund, Guofeng Xu, Deborah A. Peru, Ravi Subramanyam
  • Fatty acid chain saturation in alkanol amine based esterquat
    Patent number: 8865640
    Abstract: A composition comprising an esterquat that is a quaternized reaction product of an alkanol amine and a fatty acid having a ratio of fatty acid to alkanol amine of 1.5 to 1.75, wherein 45 to 75% by weight of the fatty acids are saturated. Also, a method of softening a fabric and increasing fragrance delivery comprising treating the fabric with the composition.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 21, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Charles J. Schramm, Jr., Aarti Rege
  • Borinic compositions
    Patent number: 8852559
    Abstract: A stabilized oral care composition comprising a borinic acid derivative, e.g., a borinic ester.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: October 7, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Venda Porter, Andre Morgan, Stanislav Jaracz, Jennifer Gronlund, Guofeng Xu, Donghui Wu, Michael Prencipe, Ravi Subramanyam
  • Oral and Skin Care Compositions Based on a 3,3-Dialkyl-1,1-Biphenyl-2,2-Diol or a 3,3-Dialkenyl-1,1-Biphenyl-2,2-Diol
    Publication number: 20140234232
    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: Application
    Filed: September 8, 2011
    Publication date: August 21, 2014
    Applicant: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Neelima Utgikar, Guofeng Xu, Ying Yang, Lin Fei
  • Analysis of substrates having agents deposited thereon
    Patent number: 8803095
    Abstract: Improved analytical, diagnostic, monitoring, and other methods (and their associated devices) for evaluating the extent of deposition of an agent onto a substrate are described. Exemplary methods may be used in the in the monitoring of the dental health of patients or in the fast, efficient screening and/or characterization of formulations in terms of their use for depositing oral actives onto tooth surfaces. The methods involve the direct or in situ analysis of substrates, onto which agents are deposited, using Near-IR spectroscopy and/or UV spectroscopy.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: August 12, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Jennifer Gronlund, Guofeng Xu, Deborah A. Peru, Ravi Subramanyam
  • CLEANSING BAR
    Publication number: 20140213497
    Abstract: A cleansing bar comprising at least one member chosen from clay and talc, wherein a total amount of clay and talc is present in an amount that is greater than any other material in the cleansing bar, at least one cleanser chosen from soap and surfactant, and a binder present in an amount to structure the cleansing bar into a bar.
    Type: Application
    Filed: April 2, 2014
    Publication date: July 31, 2014
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Steve Misner, Long Pan, Diana Scala, Regina Hourigan, Ravi Subramanyam, Dennis Fletcher, Patricia Hall-Puzio, Shamim Ansari, Derek Le
  • Densensitizing dentifrice exhibiting dental tissue antibacterial agent uptake
    Patent number: 8778312
    Abstract: An oral composition exhibiting increased uptake by dental tissue of antibacterial compounds contained therein and eliminating or substantially reducing the discomfort and pain associated with dentinal hypersensitivity. The composition includes an orally acceptable vehicle for such composition, an effective therapeutic amount of an antibacterial compound, a mixture of anionic surfactant and amphoteric surfactant, the mixture having 0.1 wt. % to 2.0 wt. % anionic surfactant and 0.8 wt. % to 2.0 wt. % amphoteric surfactant, and a potassium ion releasable compound.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: July 15, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Guofeng Xu, Ravi Subramanyam
  • Cleansing bar
    Patent number: 8729137
    Abstract: A cleansing bar comprising at least one member chosen from clay and talc, wherein a total amount of clay and talc is present in an amount that is greater than any other material in the cleansing bar, at least one cleanser chosen from soap and surfactant, and a binder present in an amount to structure the cleansing bar into a bar.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: May 20, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Steve Misner, Long Pan, Diana Scala, Regina Hourigan, Ravi Subramanyam, Dennis Fletcher, Patricia Hall-Puzio, Shamim Ansari, Derek Le
  • Oral compositions containing biphenol antibacterial compounds
    Patent number: 8652444
    Abstract: Antiplaque oral compositions are provided that contain an orally acceptable carrier and an antibacterial effective amount of the compound of formula (I). In various embodiments, the compositions contain from about 0.001% to about 10% by weight of the compound of formula (I).
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: February 18, 2014
    Assignee: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Prem Sreenivasan
  • Compounds and Compositions
    Publication number: 20130280185
    Abstract: Described herein are compounds of Formula (I): or a salt thereof; wherein: R1 and R5 are independently selected from H, OH and alkoxy; R2-R4 and R6-R8 are independently selected from H, OH, F, Cl, Br, and I; R9 and R10 are independently selected from H, alkyl, alkenyl, alkynyl, and aryl; with the proviso that: at least one of R land R5 is OH or alkoxy; and at least one of CR2-R4 and R6-R8 is F, Cl, Br or I; compositions comprising said compounds; and methods of making and using the same.
    Type: Application
    Filed: December 21, 2010
    Publication date: October 24, 2013
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Ravi Subramanyam, Guofeng Xu, Jennifer Gronlund, Shamim Ansari
  • Synthesis of magnolol and its analogue compounds
    Patent number: 8519197
    Abstract: A method is described for producing magnolol, or a derivative or analogue thereof. The method includes obtaining MOM ether of 5,5?-diallylbiphenyl-2,2?-diol or a derivative or analogue thereof and subsequently converting the MOM ether of 5,5?-diallylbiphenyl-2,2?-diol into magnolol or a derivative or analogue thereof.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 27, 2013
    Assignees: Colgate-Palmolive Company, Indian Institute of Chemical Technology
    Inventors: Basi V. Subba Reddy, Jhillu S. Yadav, Ravi Subramanyam
  • Antibacterial 3?,5-disubstituted 2,4?-dihydroxybiphenyl compounds, derivatives and related methods
    Patent number: 8425881
    Abstract: The invention provides an antiplaque oral composition containing an orally acceptable carrier and an antibacterial effective amount of compound (I): In the structure, R1 and R2 are independently a hydrogen atom or a lower C1-4 alkyl group and R3 and R4 are independently an alkenyl or alkyl group having from 1 to 20 carbon atoms, with the proviso that R3 and R4 are not both 2-propenyl or n-propyl when R1 and R2 are both hydrogen atoms. Also included are oral compositions containing the compound (I).
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 23, 2013
    Assignee: Colgate-Palmolive Company
    Inventor: Ravi Subramanyam
  • FATTY ACID CHAIN SATURATION IN ALKANOL AMINE BASED ESTERQUAT
    Publication number: 20130059767
    Abstract: A composition comprising an esterquat that is a quaternized reaction product of an alkanol amine and a fatty acid having a ratio of fatty acid to alkanol amine of 1.5 to 1.75, wherein 45 to 75% by weight of the fatty acids are saturated. Also, a method of softening a fabric and increasing fragrance delivery comprising treating the fabric with the composition.
    Type: Application
    Filed: May 28, 2010
    Publication date: March 7, 2013
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Ravi Subramanyam, Charles J. Schramm, Aarti Rege
  • PROCESS OF PRODUCING ARGININE EMPLOYING CORYNEBACTERIUM GLUTAMICUM ATCC 21831 OR CORYNEBACTERIUM GLUTAMICUM ATCC 21493 IN AN AFERMANTATION MEDIUM COMPRISING CASSAVA BAGASSE OR JACKFRUIT SEED AS A CARBON SOURCE
    Publication number: 20120309061
    Abstract: Disclosed are processes for producing Arginine by fermentation in which sugars obtained by enzymatic starch hydrolysis from inexpensive starch containing agro-wastes, such as Cassava bagasse and Jackfruit seed powder, are fermented in the presence of microorganisms to produce a fermentated liquor containing Arginine, and recovering Arginine from the liquor. The process can economically be scaled up for the production of Arginine from unrefined sugar sources as it produced Arginine in higher yields, when compared to more expensive synthetic carbon sources, like dextrose or sucrose.
    Type: Application
    Filed: February 25, 2010
    Publication date: December 6, 2012
    Applicant: COLGATE-PALMOLIVE COMPANY
    Inventors: Ashok Pandey, K. Madhavan Nampoothiri, Ravi Subramanyam