Patents by Inventor Rakesh Voggu

Rakesh Voggu 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).

  • Methods and compositions for the separation of single-walled carbon nanotubes
    Patent number: 8580223
    Abstract: Embodiments herein describe a composition including at least one water-soluble complex having a water-soluble separation agent including a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group; and a semiconducting single-walled carbon nanotube in an aqueous solution. Further embodiments describe a method of separating metallic single-walled carbon nanotubes and semiconducting single-walled carbon nanotubes including providing carbon nanotubes having an admixture of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes; and combining the admixture with a water-soluble separation agent in an aqueous solution to form a mixture, in which the water-soluble separation agent includes a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: November 12, 2013
    Assignee: Jawaharlal Nehru Centre for Advanced Scientific Research
    Inventors: Chintamani Nagesa Ramachandra Rao, Subi Jacob George, Rakesh Voggu, Kotagiri Venkata Rao
  • METHODS AND COMPOSITIONS FOR THE SEPARATION OF SINGLE-WALLED CARBON NANOTUBES
    Publication number: 20120286215
    Abstract: Embodiments herein describe a composition including at least one water-soluble complex having a water-soluble separation agent including a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group; and a semiconducting single-walled carbon nanotube in an aqueous solution. Further embodiments describe a method of separating metallic single-walled carbon nanotubes and semiconducting single-walled carbon nanotubes including providing carbon nanotubes having an admixture of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes; and combining the admixture with a water-soluble separation agent in an aqueous solution to form a mixture, in which the water-soluble separation agent includes a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group.
    Type: Application
    Filed: July 18, 2012
    Publication date: November 15, 2012
    Applicant: JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RESEARCH
    Inventors: Chintamani Nagesa Ramachand RAO, Subi Jacob GEORGE, Rakesh VOGGU, K. Venkata RAO
  • Methods and compositions for the separation of single-walled carbon nanotubes
    Patent number: 8246928
    Abstract: Embodiments herein describe a composition including at least one water-soluble complex having a water-soluble separation agent including a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group; and a semiconducting single-walled carbon nanotube in an aqueous solution. Further embodiments describe a method of separating metallic single-walled carbon nanotubes and semiconducting single-walled carbon nanotubes including providing carbon nanotubes having an admixture of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes; and combining the admixture with a water-soluble separation agent in an aqueous solution to form a mixture, in which the water-soluble separation agent includes a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: August 21, 2012
    Assignee: Jawaharlal Nehru Centre for Advanced Scientific Research
    Inventors: Chintamani Nagesa Ramachandra Rao, Subi Jacob George, Rakesh Voggu, K. Venkata Rao