Patents by Inventor Suresh K. Donthu

Suresh K. Donthu 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).

  • Patent number: 8647814
    Abstract: Method for nanopatterning of inorganic materials, such as ceramic (e.g. metal oxide) materials, and organic materials, such as polymer materials, on a variety of substrates to form nanopatterns and/or nanostructures with control of dimensions and location, all without the need for etching the materials and without the need for re-alignment between multiple patterning steps in forming nanostructures, such as heterostructures comprising multiple materials. The method involves patterning a resist-coated substrate using electron beam lithography, removing a portion of the resist to provide a patterned resist-coated substrate, and spin coating the patterned resist-coated substrate with a liquid precursor, such as a sol precursor, of the inorganic or organic material. The remaining resist is removed and the spin coated substrate is heated at an elevated temperature to crystallize the deposited precursor material.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: February 11, 2014
    Assignee: Northwestern University
    Inventors: Vinayak P. Dravid, Suresh K. Donthu, Zixiao Pan
  • Patent number: 8524415
    Abstract: A high surface area support material is formed of an intimate mixture of carbon clusters and titanium oxide clusters. A catalytic metal, such as platinum, is deposited on the support particles and the catalyzed material used as an electrocatalyst in an electrochemical cell such as a PEM fuel cell. The composite material is prepared by thermal decomposition and oxidation of an intimate mixture of a precursor carbon polymer, a titanium alkoxide and a surfactant that serves as a molecular template for the mixed precursors.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: September 3, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Mei Cai, Suresh K. Donthu, Martin S. Ruthkosky, Ion C. Halalay
  • Publication number: 20110081600
    Abstract: A high surface area support material is formed of an intimate mixture of carbon clusters and titanium oxide clusters. A catalytic metal, such as platinum, is deposited on the support particles and the catalyzed material used as an electrocatalyst in an electrochemical cell such as a PEM fuel cell. The composite material is prepared by thermal decomposition and oxidation of an intimate mixture of a precursor carbon polymer, a titanium alkoxide and a surfactant that serves as a molecular template for the mixed precursors.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 7, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mei Cai, Suresh K. Donthu, Martin S. Ruthkosky, Ion C. Halalay
  • Publication number: 20090142640
    Abstract: A high surface area support material is formed of an intimate mixture of carbon clusters and titanium oxide clusters. A catalytic metal, such as platinum, is deposited on the support particles and the catalyzed material us as an electrocatalyst in an electrochemical cell such as a PEM fuel cell. The composite material is prepared by thermal decomposition and oxidation of an intimate mixture of a precursor carbon polymer, a titanium alkoxide and a surfactant that serves as a molecular template for the mixed precursors.
    Type: Application
    Filed: May 7, 2008
    Publication date: June 4, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Mei Cai, Suresh K. Donthu, Martin S. Ruthkosky, Ion C. Halalay