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).

  • Patent number: 10857083
    Abstract: Disclosed herein are amino acid carbamate complexes, methods of synthesis thereof, oral care compositions comprising the same, and methods of making and using thereof.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: December 8, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Long Pan, Donghui Wu, Ravi Subramanyam, Hongwei Shen, Chi-Yuan Cheng, Tatiana Brinzari
  • Publication number: 20200316044
    Abstract: Described herein are complexes comprising a cationic antibacterial agent and a metal salt, personal care compositions comprising same; along with methods of making and using these complexes and compositions.
    Type: Application
    Filed: December 7, 2018
    Publication date: October 8, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Viktor DUBOVOY, Junhong MAO, Ravi SUBRAMANYAM, Long PAN, Tatiana BRINZARI
  • Publication number: 20200291047
    Abstract: Described herein are complexes comprising a cationic antibacterial agent and a metal salt; oral care compositions comprising same; along with methods of making and using these complexes and compositions.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Viktor DUBOVOY, Long PAN, Ravi SUBRAMANYAM, Tatiana BRINZARI
  • Publication number: 20200230039
    Abstract: The disclosure provides a zinc-arginine complex, methods of making the same, and methods of using the same in oral care compositions.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 23, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Chi-Yuan CHENG, Tatiana BRINZARI, Long PAN, Ravi SUBRAMANYAM
  • Patent number: 10703766
    Abstract: Described herein are complexes comprising a cationic antibacterial agent and a metal salt; oral care compositions comprising same; along with methods of making and using these complexes and compositions.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: July 7, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Viktor Dubovoy, Long Pan, Ravi Subramanyam, Tatiana Brinzari
  • Publication number: 20200199156
    Abstract: Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc halide and amino acid free base in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 25, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Chi-Yuan CHENG, Tatiana BRINZARI, Long PAN, Ravi SUBRAMANYAM
  • Publication number: 20200199157
    Abstract: Disclosed herein are improved methods for the synthesis of zinc-amino acid-halide complexes via reaction of zinc oxide and amino acid hydrochloride in a solvent comprising a polyol, as well as oral care compositions comprising said complexes made according to said method.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 25, 2020
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Chi-Yuan CHENG, Tatiana BRINZARI, Long PAN, Ravi SUBRAMANYAM, Lauren EVANS, Sergio LEITE
  • Patent number: 10646422
    Abstract: The present invention provides an oral care composition comprising: (a) a first composition comprising a silica abrasive and a first zinc compound selected from zinc citrate, zinc chloride, zinc acetate, zinc lactate, zinc salicylate, zinc sulfate, and zinc nitrate; and (b) a second composition comprising a calcium carbonate abrasive; wherein the first composition and/or the second composition further comprises a second zinc compound selected from zinc oxide, zinc carbonate and zinc tartrate; and wherein the oral care composition optionally further comprises from 0.1 to 1.75 weight % of a tartar control agent, based on the total weight of the oral care composition.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: May 12, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Suzanne Jogun, Mahmoud Hassan, Navin Lewis, Xiao Yi Huang, Shao Peng Xu
  • Patent number: 10633398
    Abstract: The disclosure provides an improved synthesis for a zinc-lysine complex having the formula [Zn(C6H14N2O2)2Cl]+Cl?, in which zinc chloride is reacted with lysine, in aqueous solution. The disclosure also provides oral care and personal care compositions comprising the complex prepared by the synthesis, and methods of using these complexes and compositions.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: April 28, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Shiri Nawrocki, Ravi Subramanyam, Long Pan
  • Patent number: 10532016
    Abstract: Disclosed herein are zinc-amino acid-tripolyphosphate complexes, oral care and personal care compositions comprising zinc-amino acid-tripolyphosphate complexes, and methods of making and using the same.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: January 14, 2020
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Dennis Zhang, Donghui Wu, Ravi Subramanyam, Chi-Yuan Cheng, Long Pan, Stanislav Jaracz
  • Publication number: 20190274936
    Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an organic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the organic zinc salt and long chain polyphosphates being mixed in amounts that provide a phosphorus to zinc mole ratio of 15:1 to about 55:1. Further provided is a method of making this soluble zinc polyphosphate.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Baohua QIAO, Long PAN, Gregory SZEWCZYK, Ravi SUBRAMANYAM, Shiri NAWROCKI, Viktor DUBOVOY
  • Patent number: 10350151
    Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an organic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the organic zinc salt and long chain polyphosphates being mixed in amounts that provide a phosphorus to zinc mole ratio of 15:1 to about 55:1. Further provided is a method of making this soluble zinc polyphosphate.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: July 16, 2019
    Assignee: Colgate-Palmolive Company
    Inventors: Baohua Qiao, Long Pan, Gregory Szewczyk, Ravi Subramanyam, Shiri Nawrocki, Viktor Dubovoy
  • Publication number: 20190185490
    Abstract: Described herein are complexes comprising a cationic antibacterial agent and a metal salt; oral care compositions comprising same; along with methods of making and using these complexes and compositions.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 20, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Viktor DUBOVOY, Long PAN, Ravi SUBRAMANYAM
  • Publication number: 20190185499
    Abstract: Disclosed herein are stannous-ascorbyl phosphate and stannic-asorbyl phosphate complexes, oral care compositions stannous-ascorbyl phosphate and stannic-asorbyl phosphate complexes, and methods of making and using the same.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 20, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Chi-Yuan CHENG, Long PAN, Ravi SUBRAMANYAM
  • Publication number: 20190183755
    Abstract: The present invention provides an oral care composition comprising: (a) a first composition comprising a silica abrasive and a first zinc compound selected from zinc citrate, zinc chloride, zinc acetate, zinc lactate, zinc salicylate, zinc sulfate, and zinc nitrate; and (b) a second composition comprising a calcium carbonate abrasive; wherein the first composition and/or the second composition further comprises a second zinc compound selected from zinc oxide, zinc carbonate and zinc tartrate; and wherein the oral care composition optionally further comprises from 0.1 to 1.75 weight % of a tartar control agent, based on the total weight of the oral care composition.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Ravi SUBRAMANYAM, Suzanne JOGUN, Mahmoud HASSAN, Navin LEWIS, Xiao Yi HUANG, Shao Peng XU
  • Publication number: 20190183765
    Abstract: Disclosed herein are amino acid carbamate complexes, methods of synthesis thereof, oral care compositions comprising the same, and methods of making and using thereof.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 20, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Long PAN, Donghui WU, Ravi SUBRAMANYAM, Hongwei SHEN, Chi-Yuan CHENG, Tatiana BRINZARI
  • Publication number: 20190175479
    Abstract: Disclosed herein are zinc-amino acid-tripolyphosphate complexes, oral care and personal care compositions comprising zinc-amino acid-tripolyphosphate complexes, and methods of making and using the same.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Dennis ZHANG, Donghui WU, Ravi SUBRAMANYAM, Chi-Yuan CHENG, Long PAN, Stanislav JARACZ
  • Publication number: 20190169034
    Abstract: Disclosed herein is zinc/amino acid functionalized silica, compositions comprising the same, and oral care methods and uses for such compositions.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 6, 2019
    Applicant: Colgate-Palmolive Company
    Inventors: Viktor DUBOVOY, Tatiana BRINZARI, Michael STRANICK, Long PAN, Ravi SUBRAMANYAM
  • Patent number: 10251823
    Abstract: The present invention provides an oral care composition comprising: (a) a first composition comprising a silica abrasive and a first zinc compound selected from zinc citrate, zinc chloride, zinc acetate, zinc lactate, zinc salicylate, zinc sulfate, and zinc nitrate; and (b) a second composition comprising a calcium carbonate abrasive; wherein the first composition and/or the second composition further comprises a second zinc compound selected from zinc oxide, zinc carbonate and zinc tartrate; and wherein the oral care composition optionally further comprises from 0.1 to 1.75 weight % of a tartar control agent, based on the total weight of the oral care composition.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: April 9, 2019
    Assignee: Colgate-Palmolive Company
    Inventors: Ravi Subramanyam, Suzanne Jogun, Mahmoud Hassan, Navin Lewis, Xiao Yi Huang, Shao Peng Xu
  • Publication number: 20180296453
    Abstract: This invention relates to oral care compositions comprising an effective amount of a basic amino acid in free or salt form, together with an anionic surfactant, and to methods of using and of making such compositions.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 18, 2018
    Applicant: Colgate-Palmolive Company
    Inventors: Michael Prencipe, Diane CUMMINS, Ravi SUBRAMANYAM, Richard SULLIVAN, Ralph Peter SANTARPIA III, Sarita Vera MELLO, Lynette ZAIDEL, Suman CHOPRA, Qin WANG, Gary TAMBS, Virginia Monsul BARNES, Donghui WU, Andre MORGAN, Rajnish KOHLI, Richard ROBINSON, Sergio LEITE, Eric SIMON