Patents by Inventor Ramanathan S Lalgudi

Ramanathan S Lalgudi 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: 8193142
    Abstract: A cleaning composition comprises a dispersion. The dispersion includes an acidic aqueous phase and a suspended particle. The particle is coated with an acid stable coating.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: June 5, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Ramanathan S Lalgudi, Rob J Cain
  • Patent number: 8129069
    Abstract: A fuel cell component is made with a composite including a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material. In another embodiment, the fuel cell component is made with a composite including a non-proton conducting polymer, a water insoluble inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the heteropolyacid causing the composite to show proton conductivity. In a further embodiment, the fuel cell component is made with a composite comprising a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the composite having substantially identical structure of the unmodified heteropolyacid.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 6, 2012
    Assignee: Battelle Memorial Institute
    Inventors: Ramanathan S. Lalgudi, Jay R. Sayre, Bhima R. Vijayendran
  • Publication number: 20110104495
    Abstract: A filled nanoparticle includes a nanosized polymer shell encapsulating a reactive chemical. In another aspect, a filled nanoparticle includes a nanosized polymer shell encapsulating a core which includes a reactive functional group attached to a polymer. A miniemulsion polymerization process of producing filled nanoparticles includes: providing a mixture comprising monomer, initiator or catalyst to aid polymerization, reactive chemical, surfactant and water; shearing the mixture to form a miniemulsion of nanosized particles dispersed in water, the nanosized particles comprising the monomer combined with the reactive chemical; and then heating the miniemulsion to polymerize the monomer and produce filled nanoparticles comprising a nanosized polymer shell encapsulating the reactive chemical.
    Type: Application
    Filed: May 12, 2009
    Publication date: May 5, 2011
    Inventors: Ramanathan S. Lalgudi, Jeff J. Boyce, Barry L. McGraw
  • Publication number: 20110105653
    Abstract: The present invention relates to a coating that includes a film forming binder, a solvent, and a metal complex that functions as a drier. In some preferred embodiments, the metal complex is an aluminum compound, and more particularly an aluminum compound having certain preferred structures as disclosed herein.
    Type: Application
    Filed: February 9, 2009
    Publication date: May 5, 2011
    Inventors: Ramanathan S. Lalgudi, Barry L. McGraw, Robert J. Cain
  • Publication number: 20110053275
    Abstract: A corrosion detection product is a coating including a film forming material and a complexing agent, the complexing agent forming a complex when it comes into contact with a corrosion byproduct produced by corrosion of a substrate on which the coating is applied, the complex being detectably different from the complexing agent when the coating is exposed to radiation in order to detect the corrosion, the complexing agent being immobilized in the coating to reduce leaching of the complexing agent or the complex from the coating.
    Type: Application
    Filed: April 9, 2009
    Publication date: March 3, 2011
    Inventors: Ramanathan S. Lalgudi, Barry L. McGraw, Robert J. Cain
  • Publication number: 20110053825
    Abstract: A cleaning composition comprises a dispersion. The dispersion includes an acidic aqueous phase and a suspended particle. The particle is coated with an acid stable coating.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Ramanathan S. LALGUDI, Rob J. Cain
  • Publication number: 20110053446
    Abstract: A stain repellent composition comprising a cellulose based compound which has been modified hydrophobically.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 3, 2011
    Applicant: Reckitt & Colman (Overseas) Limited
    Inventors: Ramanathan S. LALGUDI, Rob J. Cain
  • Patent number: 7897650
    Abstract: An ionically conductive polymer is a copolymer including first and second polymer segments. The first polymer segments have a hydrophobic character and a high oxygen permeability. The second polymer segments have a hydrophilic character and a low oxygen permeability. The copolymer has an ionic conductivity of at least about 1×10?5 S/cm at any point within a temperature range of from 30° C. to 150° C. and a relative humidity range of from 20% to 100%. The ionically conductive polymer can be used in an electrochemical device such as a fuel cell, for example, used as a binder in an electrode or used to produce a membrane.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 1, 2011
    Inventors: Jay R. Sayre, Ramanathan S. Lalgudi, Bhima R. Vijayendran
  • Patent number: 7892341
    Abstract: A stain repellent composition comprising a cellulose based compound which has been modified hydrophobically.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: February 22, 2011
    Inventors: Ramanathan S Lalgudi, Rob J. Cain
  • Publication number: 20110003231
    Abstract: A fuel cell component is made with a composite including a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material. In another embodiment, the fuel cell component is made with a composite including a non-proton conducting polymer, a water insoluble inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the heteropolyacid causing the composite to show proton conductivity. In a further embodiment, the fuel cell component is made with a composite comprising a proton conducting polymer, a water insoluble proton conducting inorganic material, and a heteropolyacid immobilized by chemically bonding to the inorganic material, the composite having substantially identical structure of the unmodified heteropolyacid.
    Type: Application
    Filed: September 29, 2006
    Publication date: January 6, 2011
    Inventors: Ramanathan S. Lalgudi, Jay R. Sayre, Bhima R. Vijayendran
  • Publication number: 20100234479
    Abstract: A proton conducting hydrocarbon-based polymer has acid groups on side chains attached to the main chain, where the acid groups are between 7 and 12 atoms away from the main chain. Another polymer includes a semi-fluorinated aromatic hydrocarbon main chain and side chains that include at least one —CF2— group and an acid group. Another polymer includes an aromatic hydrocarbon main chain and side chains that include at least one —CH2-CF2— group and an acid group. Another aromatic polymer includes acid groups attached to both the main chain and the side chains where less than about 65 weight percent of the acid groups are attached to the side chains. Another aromatic polymer includes side chains attached to the main chain that include at least one aryl ring, and acid groups attached to both the main chain and to the aryl groups. Another polymer includes an aliphatic hydrocarbon main chain, side chains that include at least one deactivating aryl ring, and acid groups attached to the deactivating aryl rings.
    Type: Application
    Filed: September 29, 2006
    Publication date: September 16, 2010
    Applicant: BATTELLE MEMORIAL INSITITUTE
    Inventors: Ramanathan S. Lalgudi, Bhima R. Vijayendran, Jeffrey Cafmeyer, Jay R. Sayre
  • Publication number: 20100126981
    Abstract: An electrically conductive coating composition is provided for use on aircraft and other substrate surfaces to prevent the formation of ice or to melt ice. The conductive coating composition may include a nanomaterial such as carbon nanotubes dispersed in a solvent which may be applied to a substrate surface to form a thin film which is resistively heatable. The conductive coating may also comprise a nanomaterial formed from carbon nanotubes or fullerenes grafted to a polymer containing an active functional group which renders a substrate surface icephobic and is also resistively heatable.
    Type: Application
    Filed: August 1, 2007
    Publication date: May 27, 2010
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Amy M. Heintz, Anne-Claire Christiaen, Bhima Rao Vijayendran, Joel D. Elhard, Ramanathan S. Lalgudi, Wayne B. Robbins, Abhishek Gupta, Jeffrey Cafmeyer
  • Publication number: 20090111027
    Abstract: An ionically conductive polymer has the chemical structure 1 as shown herein. Examples of the polymer include 4,4?-(4-(1H-benzo[d]imidazol-2-yl)butane-2,2-diyl)diphenol, sulfonated poly(aryl ether sulfone) containing benzimidazole backbone, sulfonated poly(aryl ether sulfone) containing carboxylic acid backbone, and sulfonated poly(aryl ether sulfone) containing benzimidazole backbone from carboxylic acid containing sulfonated poly(aryl ether sulfone). The polymer has intrinsic ion conducting properties so that it is effectively conductive even under low water conditions. In one embodiment, the polymer has an ionic conductivity of at least 1×10?5 S/cm at a temperature of 120° C. when the polymer is substantially anhydrous.
    Type: Application
    Filed: October 26, 2007
    Publication date: April 30, 2009
    Applicant: Battelle Memorial Institute
    Inventors: Ramanathan S. Lalgudi, Jeffrey Boyce, Jay Sayre, Bhima R. Vijayendran
  • Publication number: 20090061277
    Abstract: An ionically conductive polymer is a copolymer including first and second polymer segments. The first polymer segments have a hydrophobic character and a high oxygen permeability. The second polymer segments have a hydrophilic character and a low oxygen permeability. The copolymer has an ionic conductivity of at least about 1×10?5 S/cm at any point within a temperature range of from 30° C. to 150° C. and a relative humidity range of from 20% to 100%. The ionically conductive polymer can be used in an electrochemical device such as a fuel cell, for example, used as a binder in an electrode or used to produce a membrane.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 5, 2009
    Inventors: Jay R. Sayre, Ramanathan S. Lalgudi, Bhima R. Vijayendran