Patents by Inventor Subasri M Ayyadurai

Subasri M Ayyadurai 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).

  • Optical sensor based on PFSI membrane comprising associated benzene-1,3-diol for detecting target compounds, and method thereof
    Patent number: 9921167
    Abstract: An optical sensor for monitoring an environmental condition, the optical sensor comprising a perfluorosulfonate ionomer membrane comprising a solution, wherein the solution comprises a transition metal-free dye component, wherein exposure of the optical sensor to a specific environmental condition produces a color shift on the optical sensor.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: March 20, 2018
    Assignee: University of Cincinnati
    Inventors: Anastasios Angelopoulos, Subasri M Ayyadurai, Jonathan A. Bernstein, Daniel S. Kanter
  • Optical Sensor
    Publication number: 20160041105
    Abstract: An optical sensor for monitoring an environmental condition, the optical sensor comprising a perfluorosulfonate ionomer membrane comprising a solution, wherein the solution comprises a transition metal-free dye component, wherein exposure of the optical sensor to a specific environmental condition produces a color shift on the optical sensor.
    Type: Application
    Filed: October 23, 2015
    Publication date: February 11, 2016
    Applicant: UNIVERSITY OF CINCINNATI
    Inventors: Anastasios Angelopoulos, Subasri M Ayyadurai, Jonathan A. Berstein, Daniel S. Kanter
  • OPTICAL SENSOR
    Publication number: 20100003764
    Abstract: An optical sensor for monitoring an environmental condition, the optical sensor comprising a perfluorosulfonate ionomer membrane comprising a solution, wherein the solution comprises a transition metal-free dye component, wherein exposure of the optical sensor to a specific environmental condition produces a color shift on the optical sensor.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 7, 2010
    Inventors: Anastasios Angelopoulos, Subasri M Ayyadurai, Jonathan A. Berstein, Daniel Kanter
  • DEVELOPMENT OF PEM FUEL CELL ELECTRODES USING PULSE ELECTRODEPOSITION
    Publication number: 20090050258
    Abstract: In one embodiment of the present disclosure a method for forming a PEM fuel cell electrode is provided. The method includes applying a hydrophilic wetting agent on an electrode surface. A catalyst layer is deposited on the wetted electrode surface by pulse electrodeposition, at least a portion of the catalyst penetrating the electrode surface. The electrode surface is heat treated.
    Type: Application
    Filed: August 22, 2008
    Publication date: February 26, 2009
    Applicant: University of South Carolina
    Inventors: Branko N. Popov, Yoon-Seok Choi, Subasri M Ayyadurai, Jong-Won Lee