Patents by Inventor Tharangattu Narayanan

Tharangattu Narayanan 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).

  • Graphite oxide coated particulate material and method of making thereof
    Patent number: 9403115
    Abstract: A process for conversion of conventional sand granules (or other particulates) to a ‘core-shell’ adsorbent granules in which GO (or GO-f) coating imparts nano structural features on the surface of the sand granules (or other particulates). Such materials are useful in a variety of engineering applications such as water purification, catalysis, capacitors, proppants, casting, and magnetic shielding.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 2, 2016
    Assignees: WILLIAM MARSH RICE UNIVERSITY, NANOHOLDINGS LLC
    Inventors: Mainak Majumder, Wei Gao, Pulickel Madhavapanicker Ajayan, Tharangattu Narayanan, Bhabendra K. Pradhan
  • BORON NITRIDE-BASED FLUID COMPOSITIONS AND METHODS OF MAKING THE SAME
    Publication number: 20140077138
    Abstract: In some embodiments, the present invention pertains to fluid compositions that generally comprise: (1) a base fluid; and (2) boron nitride-based materials dispersed in the base fluid. In some embodiments, the boron nitride-based materials may include hexagonal boron nitride. In some embodiments, the boron nitride-based materials in the fluid compositions may be less than about 1% of the weight of the fluid composition. Additional embodiments of the present invention pertain to methods of making fluid compositions. Such methods generally include dispersing boron nitride-based materials in a base fluid, such as by mixing. In some embodiments, the methods of the present invention may also include steps of exfoliating or sonicating the bulk boron nitride-based materials followed by centrifugation and drying procedures.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 20, 2014
    Applicant: William Marsh Rice University
    Inventors: Jose Jaime Taha-Tijerina, Narayanan Tharangattu Narayanan, Pulickel Madhavapanicker Ajayan, Daniel Paul Hashim
  • GRAPHITE OXIDE COATED PARTICULATE MATERIAL AND USES THEREOF
    Publication number: 20140011034
    Abstract: A process for conversion of conventional sand granules (or other particulates) to a ‘core-shell’ adsorbent granules in which GO (or GO-f) coating imparts nano structural features on the surface of the sand granules (or other particulates). Such materials are useful in a variety of engineering applications such as water purification, catalysis, capacitors, proppants, casting, and magnetic shielding.
    Type: Application
    Filed: March 18, 2011
    Publication date: January 9, 2014
    Applicants: William Marsh Rice University, NanoHoldings LLC
    Inventors: Mainak Majumder, Wei Gao, Pulickel Madhavapanicker Ajayan, Tharangattu Narayanan, Bhabendra K. Pradhan