Patents by Inventor Ramagopal Ananth

Ramagopal Ananth 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).

  • Siloxane-triazoleglucoside and glucoside surfactant formulations for fire-fighting foam applications
    Patent number: 12290711
    Abstract: The compound below may be used in a fire-fighting formulation along with a poly(glucoside)-alkane, a poly(ethylene glycol) monoalkyl ether, and water. The value n is 2 or 3, R is a C3-C9 alkylene group, X is —O— or —N(COCH3)—, and c is a positive integer. It may be made by reacting a polysaccharide with acetic anhydride, propargyl alcohol, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane. Alternatively, it may be made by reacting a polysaccharide with propargylamine, acetic anhydride, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane.
    Type: Grant
    Filed: August 16, 2024
    Date of Patent: May 6, 2025
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Matthew Davis, Katherine Hinnant, Arthur W. Snow
  • SILOXANE-TRIAZOLEGLUCOSIDE AND GLUCOSIDE SURFACTANT FORMULATIONS FOR FIRE-FIGHTING FOAM APPLICATIONS
    Publication number: 20250073516
    Abstract: The compound below may be used in a fire-fighting formulation along with a poly(glucoside)-alkane, a poly(ethylene glycol) monoalkyl ether, and water. The value n is 2 or 3, R is a C3-C9 alkylene group, X is —O— or —N(COCH3)—, and c is a positive integer. It may be made by reacting a polysaccharide with acetic anhydride, propargyl alcohol, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane. Alternatively, it may be made by reacting a polysaccharide with propargylamine, acetic anhydride, and an azidoalkyltris(trimethylsiloxy)silane or an azidoalkylbis(trimethylsiloxy)methylsilane.
    Type: Application
    Filed: August 16, 2024
    Publication date: March 6, 2025
    Applicant: The Government of the United States of America, as represaented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Matthew Davis, Katherine Hinnant, Arthur W. Snow
  • Zwitterionic and glucoside surfactant formulations for fire-fighting foam applications
    Patent number: 11420083
    Abstract: A composition having water and first and second surfactants having the formulas below. The values m and y are non-negative integers, and n and x are positive integers. R is a zwitterionic group. R? is a siloxane group. A foam of the composition may be used to extinguish a fire.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: August 23, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Spencer L. Giles, Matthew Davis, Katherine Hinnant
  • ZWITTERIONIC AND GLUCOSIDE SURFACTANT FORMULATIONS FOR FIRE-FIGHTING FOAM APPLICATIONS
    Publication number: 20220212047
    Abstract: A composition having water and first and second surfactants having the formulas below. The values m and y are non-negative integers, and n and x are positive integers. R is a zwitterionic group. R? is a siloxane group. A foam of the composition may be used to extinguish a fire.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 7, 2022
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Spencer L. Giles, Matthew Davis, Katherine Hinnant
  • Siloxane and glucoside surfactant formulation for fire-fighting foam applications
    Patent number: 11291875
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: April 5, 2022
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles
  • SILOXANE AND GLUCOSIDE SURFACTANT FORMULATION FOR FIRE-FIGHTING FOAM APPLICATIONS
    Publication number: 20210387033
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 16, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles
  • Siloxane and glucoside surfactant formulation for fire-fighting foam applications
    Patent number: 11117008
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 14, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles
  • SILOXANE AND GLUCOSIDE SURFACTANT FORMULATION FOR FIRE-FIGHTING FOAM APPLICATIONS
    Publication number: 20190321670
    Abstract: Disclosed is a firefighting composition of the surfactants below and water. The values of m, n, x, and y are independently selected positive integers. R is an organic group. R? is a siloxane group.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 24, 2019
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Ramagopal Ananth, Arthur W. Snow, Katherine Hinnant, Spencer L. Giles