Patents by Inventor Pradeep K. Rai

Pradeep K. Rai 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 for solubilizing and separating large fullerenes
    Patent number: 8591854
    Abstract: We have discovered that size dependent solubility of large fullerenes in strong acids is dependent on acid strength. This provides a scalable method for separating large fullerenes by size. According to some embodiments, a method for processing a fullerene starting material comprises large fullerenes comprises mixing the starting material with a first concentrated sulfuric acid solution so as to obtain a first dispersion comprising a first portion of the large fullerenes solubilized in the first concentrated sulfuric acid solution.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: November 26, 2013
    Assignee: William Marsh Rice University
    Inventors: Pradeep K. Rai, A. Nicholas Parra-Vasquez, Haiqing Peng, Robert Hauge, Matteo Pasquali
  • Methods for Solubilizing and Separating Large Fullerenes
    Publication number: 20110318248
    Abstract: We have discovered that size dependent solubility of large fullerenes in strong acids is dependent on acid strength. This provides a scalable method for separating large fullerenes by size. According to some embodiments, a method for processing a fullerene starting material comprises large fullerenes comprises mixing the starting material with a first concentrated sulfuric acid solution so as to obtain a first dispersion comprising a first portion of the large fullerenes solubilized in the first concentrated sulfuric acid solution.
    Type: Application
    Filed: August 8, 2008
    Publication date: December 29, 2011
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventors: Pradeep K. Rai, A. Nicholas Parra-Vasquez, Haiqing Peng, Robert Hauge, Matteo Pasquali