Patents by Inventor Bhima R. Vijayendran
Bhima R. Vijayendran 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).
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Publication number: 20210147696Abstract: In this invention, electrolytic, photochemical, chemical, and encapsulation processes can be used to achieve substantially completely stable doped carbon nanotubes. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: ApplicationFiled: January 27, 2021Publication date: May 20, 2021Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Patent number: 10913864Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: GrantFiled: September 15, 2016Date of Patent: February 9, 2021Assignee: Battelle Memorial InstituteInventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Patent number: 10144638Abstract: A method is described for preparing carbon nanotube dispersions in organic solvents such as chloroform and methyl ethyl ketone. Structures resulting from organic dispersions are also disclosed. The dispersing agents used in this method comprise long chain hydrocarbons, halogen-substituted hydrocarbons, fluorocarbons, or a mixture of hydrocarbons, halogen-substituted hydrocarbons, and fluorocarbons; wherein the hydrocarbons, halogen-substituted hydrocarbons and fluorocarbons have from 6 to 40 carbons in a chain, at least one alkene or alkyne moiety, and at least one pendant carboxylic acid, phosphonic acid, and/or sulfonic acid group or an ester of these acids.Type: GrantFiled: March 9, 2007Date of Patent: December 4, 2018Assignee: Battelle Memorial InstituteInventors: Amy M. Heintz, Jeffrey Cafmeyer, Joel D. Elhard, Bhima R. Vijayendran
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Patent number: 10059848Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: GrantFiled: May 23, 2016Date of Patent: August 28, 2018Assignee: Battelle Memorial InstituteInventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Publication number: 20170002212Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Publication number: 20160268014Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: ApplicationFiled: May 23, 2016Publication date: September 15, 2016Inventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Patent number: 9365728Abstract: In this invention, processes which can be used to achieve stable doped carbon nanotubes are disclosed. Preferred CNT structures and morphologies for achieving maximum doping effects are also described. Dopant formulations and methods for achieving doping of a broad distribution of tube types are also described.Type: GrantFiled: March 9, 2007Date of Patent: June 14, 2016Assignee: Battelle Memorial InstituteInventors: Amy M. Heintz, Steven Risser, Joel D. Elhard, Bryon P. Moore, Tao Liu, Bhima R. Vijayendran
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Patent number: 9126137Abstract: A polymer nanocomposite for separating a target gas from a second gas in a gas mixture includes: (a) a matrix formed from a modified polymer, and (b) nanoparticles incorporated in the matrix, the nanoparticles being functionalized to have a stable interaction with the matrix. The modified polymer has a backbone including (i) a polymer having a selectivity for the target gas over the second gas, and (ii) functional groups covalently linked to the polymer (i) as part of the backbone. The functional groups are capable of further increasing the selectivity of the modified polymer by interacting with the target gas and/or with the second gas.Type: GrantFiled: July 18, 2013Date of Patent: September 8, 2015Assignee: Battelle Memorial InstituteInventors: Bhima R. Vijayendran, Ramanathan S. Lalgudi
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Patent number: 8686092Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coating formulations.Type: GrantFiled: January 26, 2012Date of Patent: April 1, 2014Assignee: Battelle Memorial InstituteInventors: Bhima R. Vijayendran, Jerry L. King, II, Katherine P. Mitchell, Michael C. Clingerman, Jeffrey T. Cafmeyer
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Patent number: 8603714Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The resins were formulated into toner formulations such as those useful in printers and copiers.Type: GrantFiled: February 14, 2011Date of Patent: December 10, 2013Assignees: Battelle Memorial Institute, Advanced Image Resources, LLCInventors: Bhima R. Vijayendran, Jerry L. King, II, Jeffrey Clark, Jan Bartus
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Patent number: 8481184Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent?? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.Type: GrantFiled: February 24, 2012Date of Patent: July 9, 2013Assignee: Battelle Memorial InstituteInventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran
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Patent number: 8378010Abstract: A method of forming a stable latex polymer emulsion is provided which includes mixing one or more monomers including polymerizable acid monomers, esters, and unsaturated monomers with water and a soy protein. The emulsion is then polymerized and may be formed into adhesive compositions having improved water resistance and mechanical strength.Type: GrantFiled: March 10, 2008Date of Patent: February 19, 2013Assignee: Battelle Memorial InstituteInventors: James D. Browning, Bhima R. Vijayendran
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Patent number: 8362195Abstract: 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: GrantFiled: October 26, 2007Date of Patent: January 29, 2013Inventors: Ramanathan S. Lalgudi, Jeffrey Boyce, Jay Sayre, Bhima R. Vijayendran
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Patent number: 8357643Abstract: A lubricant from plant and/or animal oils and fats; methods for producing a lubricating oil, and the oil produced thereby. The lubricant is derived from an animal or plant fat or oil having an iodine number above about 7, and produced by epoxi-dising the fat or oil and (1) reacting the epoxidised fat or oil with a carboxylic acid anhydride in the presence of a basic catalyst to produce a diester, or (2) hydrogenating the epoxidised fat or oil to generate mono-alcohols and acylating the alcohol functionality with acid anhydrides, acid chlorides or carboxylic acids to produce a mono-ester.Type: GrantFiled: August 10, 2005Date of Patent: January 22, 2013Assignee: Battelle Memorial InstituteInventors: Herman Benecke, Bhima R. Vijayendran, Jeffrey Cafmeyer
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Publication number: 20120276470Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent-? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.Type: ApplicationFiled: February 24, 2012Publication date: November 1, 2012Applicant: BATTELLE MEMORIAL INSTITUTEInventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran
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Patent number: 8222367Abstract: 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: GrantFiled: September 29, 2006Date of Patent: July 17, 2012Assignee: Battelle Memorial InstituteInventors: Ramanathan S. Lalgudi, Bhima R. Vijayendran, Jeffrey Cafmeyer, Jay R. Sayre
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Publication number: 20120136116Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coating formulations.Type: ApplicationFiled: January 26, 2012Publication date: May 31, 2012Inventors: Bhima R. Vijayendran, Jerry L. King, II, Katherine P. Mitchell, Michael C. Clingerman, Jeffrey T. Cafmeyer
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Patent number: 8148501Abstract: Absorbent hydrogels are formed by reacting a protein meal base, a radical initiator and a polymerizable monomer. Optionally, a cross-linking agent and/or a radical accelerant, such as tetramethylethylenediamine (TMEDA) or sodium bisulfite (NaHSO3), is also added to the mixture. Preferably, the radical initiator is ammonium persulfate (APS) or potassium persulfate (KPS), and the cross-linking agent is preferably trifunctional trimethylolpropane trimethacrylate (TMPTMA) or methylene bis acrylamide (MBA). The polymerizable monomer is preferably acrylic acid, or a combination of acrylic acid and acrylamide. The as-formed hydrogel is washed in order to extract non-reactant components from the gel and then dried. The resultant absorbent and superabsorbent hydrogels have high water uptake ratios, and can be utilized for a variety of applications.Type: GrantFiled: February 23, 2009Date of Patent: April 3, 2012Assignee: Battelle Memorial InstituteInventors: Herman P. Benecke, Bhima R. Vijayendran, Kevin B. Spahr
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Patent number: 8129069Abstract: 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: GrantFiled: September 29, 2006Date of Patent: March 6, 2012Assignee: Battelle Memorial InstituteInventors: Ramanathan S. Lalgudi, Jay R. Sayre, Bhima R. Vijayendran
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Patent number: 8124260Abstract: This invention relates in general to components of electrochemical devices, and to methods of preparing the components. The components and methods include the use of a composition comprising an ionically conductive polymer and at least one solvent, where the polymer and the solvent are selected based on the thermodynamics of the combination. In one embodiment, the invention relates to a component for an electrochemical device which is prepared from a composition comprising a true solution of an ionically conductive polymer and at least one solvent, the polymer and the at least one solvent being selected such that |? solvent?? solute|<1, where ? solvent is the Hildebrand solubility parameter of the at least one solvent and where ? solute is the Hildebrand solubility parameter of the polymer.Type: GrantFiled: November 16, 2005Date of Patent: February 28, 2012Assignee: Battelle Memorial InstituteInventors: Jay R. Sayre, Megan E. Sesslar, James L. White, John R. Stickel, Mark C. Stasik, Bhima R. Vijayendran