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).

  • Chlorhexidine-cyclamate complexes and oral care compositions comprising the same
    Patent number: 12161743
    Abstract: The present disclosure provides a chlorhexidine-cyclamate complex having a formula [C22H32Cl2N10][C6H12NO3S]2 having antibacterial and antiplaque properties, together with oral care compositions comprising the complex, and methods of making and using these complexes and compositions.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: December 10, 2024
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Long Pan, Ravi Subramanyam
  • Zinc phosphate complex for oral care
    Patent number: 12109285
    Abstract: An oral care composition having a soluble zinc polyphosphate complex made by combining ingredients including an inorganic zinc salt, and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of treating a subject suffering from dentinal sensitivity applying the oral care composition to the teeth and gums of the subject.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 8, 2024
    Assignee: Colgate-Palmolive Company
    Inventors: Baohua Qiao, Long Pan, Gregory Szewczyk, Ravi Subramanyam
  • Zinc Phosphate Complex
    Publication number: 20240325440
    Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an inorganic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of making this soluble zinc polyphosphate.
    Type: Application
    Filed: June 10, 2024
    Publication date: October 3, 2024
    Applicant: Colgate-Palmolive Company
    Inventors: Baohua Qiao, Long Pan, Gregory Szewczyk, Ravi Subramanyam
  • Zinc phosphate complex
    Patent number: 12005076
    Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an inorganic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of making this soluble zinc polyphosphate.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: June 11, 2024
    Assignee: Colgate-Palmolive Company
    Inventors: Baohua Qiao, Long Pan, Gregory Szewczyk, Ravi Subramanyam
  • Zirconium-based cluster as an antiperspirant and deodorant active
    Patent number: 11918667
    Abstract: Described herein are zirconium oxychloride clusters comprising zirconium oxychloride and a basic amino acid. Personal care compositions comprising the same, and methods of making and using the same are also described.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 5, 2024
    Assignee: Colgate-Palmolive Company
    Inventors: Viktor Dubovoy, Long Pan, Ravi Subramanyam
  • Zinc-arginine-chloride complex
    Patent number: 11826448
    Abstract: The disclosure provides a zinc-arginine complex, methods of making the same, and methods of using the same in oral care compositions.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: November 28, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Tatiana Brinzari, Long Pan, Ravi Subramanyam
  • Zinc phosphate complex
    Patent number: 11690791
    Abstract: An oral care composition having a soluble zinc polyphosphate complex made by combining ingredients including a zinc salt, a plurality of long chain polyphosphates having 6 or more phosphate polymer units, and a solvent, the relative amount of organic zinc salt and long chain polyphosphates provides a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of treating a subject suffering from dentinal sensitivity applying the oral care composition to the teeth and gums of the subject.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: July 4, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Shiri Nawrocki, Viktor Dubovoy, Long Pan, Baohua Qiao, Gregory Szewczyk, Ravi Subramanyam
  • Personal care compositions
    Patent number: 11690833
    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: Grant
    Filed: December 7, 2018
    Date of Patent: July 4, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Viktor Dubovoy, Junhong Mao, Ravi Subramanyam, Long Pan, Tatiana Brinzari
  • Oral care product and methods of use and manufacture thereof
    Patent number: 11612553
    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 antibacterial agent, and to methods of using and of making such compositions.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: March 28, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Michael Prencipe, Ravi Subramanyam, Sarita V. Mello, Donghui Wu, Suman Chopra, Andre M. Morgan, Diane Cummins, Richard J. Sullivan, Ralph Peter Santarpia, III, Lynette Zaidel, Qin Wang, Gary Edward Tambs, Virginia Monsul Barnes, Rajnish Kohli, Richard Scott Robinson, Sergio Leite, Eric A. Simon
  • Antiperspirant / deodorant compositions including biodegradable amino carboxylates and methods for the same
    Patent number: 11583485
    Abstract: Antiperspirant and/or deodorant compositions and methods for the same are provided. The compositions may include an antiperspirant active or a deodorant active, water, and a preservative system. The antiperspirant active may include aluminum, and the preservative system may include a biodegradable amino carboxylate. The methods may include substituting or replacing a conventional chelant, such as EDTA, with a biodegradable chelant, such as HIDS. The methods may also include applying one of the compositions to an axillary area of a person.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: February 21, 2023
    Assignee: Colgate-Palmolive Company
    Inventors: Daniel Schankel, Viktor Dubovoy, Richard Adams, Sandra Wadeer, Christine Boyke, Long Pan, Ravi Subramanyam
  • Oral care compositions
    Patent number: 11384101
    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: June 1, 2020
    Date of Patent: July 12, 2022
    Assignee: Colgate-Palmolive Company
    Inventors: Viktor Dubovoy, Long Pan, Ravi Subramanyam, Tatiana Brinzari
  • Chlorhexidine-Cyclamate Complexes and Oral Care Compositions Comprising the Same
    Publication number: 20220192952
    Abstract: The present disclosure provides a chlorhexidine-cyclamate complex having a formula [C22H32Cl2N10][C6H12NO3S]2 having antibacterial and antiplaque properties, together with oral care compositions comprising the complex, and methods of making and using these complexes and compositions.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 23, 2022
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang HAO, Chi-Yuan CHENG, Long PAN, Ravi SUBRAMANYAM
  • Zinc phosphate complex
    Patent number: 11344486
    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: May 29, 2019
    Date of Patent: May 31, 2022
    Assignee: Colgate-Palmolive Company
    Inventors: Baohua Qiao, Long Pan, Gregory Szewczyk, Ravi Subramanyam, Shiri Nawrocki, Viktor Dubovoy
  • Chlorhexidine-cyclamate complexes and oral care compositions comprising the same
    Patent number: 11278481
    Abstract: The present disclosure provides a chlorhexidine-cyclamate complex having a formula [C22H32Cl2N10][C6H12NO3S]2 having antibacterial and antiplaque properties, together with oral care compositions comprising the complex, and methods of making and using these complexes and compositions.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 22, 2022
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Long Pan, Ravi Subramanyam
  • Zinc / amino acid-functionalized silica
    Patent number: 11186489
    Abstract: Disclosed herein is zinc/amino acid functionalized silica, compositions comprising the same, and oral care methods and uses for such compositions.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: November 30, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Viktor Dubovoy, Tatiana Brinzari, Michael Stranick, Long Pan, Ravi Subramanyam
  • Methods for synthesizing zinc-lysine-chloride complex
    Patent number: 11117906
    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: Grant
    Filed: December 16, 2019
    Date of Patent: September 14, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Tatiana Brinzari, Long Pan, Ravi Subramanyam, Lauren Evans, Sergio Leite
  • Zinc-Arginine-Chloride Complex
    Publication number: 20210275416
    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: March 4, 2021
    Publication date: September 9, 2021
    Applicant: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Tatiana Brinzari, Long Pan, Ravi Subramanyam
  • Methods for synthesizing zinc-lysine-chloride complex
    Patent number: 11091502
    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: Grant
    Filed: December 16, 2019
    Date of Patent: August 17, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Zhigang Hao, Chi-Yuan Cheng, Tatiana Brinzari, Long Pan, Ravi Subramanyam
  • Antiperspirant / Deodorant Compositions Including Biodegradable Amino Carboxylates and Methods for the Same
    Publication number: 20210177715
    Abstract: Antiperspirant and/or deodorant compositions and methods for the same are provided. The compositions may include an antiperspirant active or a deodorant active, water, and a preservative system. The antiperspirant active may include aluminum, and the preservative system may include a biodegradable amino carboxylate. The methods may include substituting or replacing a conventional chelant, such as EDTA, with a biodegradable chelant, such as HIDS. The methods may also include applying one of the compositions to an axillary area of a person.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 17, 2021
    Applicant: Colgate-Palmolive Company
    Inventors: Daniel SCHANKEL, Viktor DUBOVOY, Richard ADAMS, Sandra WADEER, Christine BOYKE, Long PAN, Ravi SUBRAMANYAM
  • Oral gel for sensitivity and tooth pain
    Patent number: 11033594
    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 comprising an anionic polymer and a basic amino acid, and the analgesic gel providing controlled release of the mixture of analgesic oils following application to a tooth together with a methods of making and using the same.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 15, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Shashank Potnis, Ravi Subramanyam, Rajitha Nair