Patents by Inventor Sivaram Arepalli

Sivaram Arepalli 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).

  • Isolation and purification of single walled carbon nanotube structures
    Publication number: 20100247777
    Abstract: Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
    Type: Application
    Filed: June 30, 2006
    Publication date: September 30, 2010
    Inventors: Pavel Nikolaev, Sivaram Arepalli, Mark S.F. Clarke, Daniel L. Feeback
  • Isolation and purification of single walled carbon nanotube structures
    Patent number: 7763229
    Abstract: Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: July 27, 2010
    Assignee: GB Tech, Inc.
    Inventors: Pavel Nikolaev, Sivaram Arepalli, Mark S. F. Clarke, Daniel L. Feeback
  • Isolation and purification of single walled carbon nanotube structures
    Publication number: 20080280160
    Abstract: Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
    Type: Application
    Filed: January 23, 2007
    Publication date: November 13, 2008
    Inventors: Sivaram Arepalli, Mark S. F. Clarke, Daniel L. Feeback, Pavel Nikolaev
  • Isolation and purification of single walled carbon nanotube structures
    Patent number: 7166266
    Abstract: Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: January 23, 2007
    Assignee: GB Tech, Inc.
    Inventors: Pavel Nikolaev, Sivaram Arepalli, Mark S. F. Clarke, Daniel L. Feeback
  • Isolation and purification of single walled carbon nanotube structures
    Publication number: 20030170167
    Abstract: Disclosed are methods for isolating and purifying single wall carbon nanotubes from contaminant matrix material, methods for forming arrays of substantially aligned nanotubes, and products and apparatus comprising a plurality of nanotube structures.
    Type: Application
    Filed: July 9, 2002
    Publication date: September 11, 2003
    Applicant: GB Tech, Inc.
    Inventors: Pavel Nikolaev, Sivaram Arepalli, Mark S.F. Clarke, Daniel L. Feeback
  • Analysis of isolated and purified single walled carbon nanotube structures
    Publication number: 20030012951
    Abstract: Methods of analyzing single-walled carbon nanotube structures dispersed in aqueous solutions with dispersal agents are accomplished by depositing the structures in solution on a suitable substrate and forming an array of isolated structures that are substantially free of contaminating material. Transmission electron microscopy and atomic force microscopy are utilized to characterize the isolated structures formed on the substrate.
    Type: Application
    Filed: February 22, 2002
    Publication date: January 16, 2003
    Inventors: Mark S.F. Clarke, Pavel Nikolaev, Sivaram Arepalli