Patents by Inventor Samit Guha

Samit Guha 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).

  • Colorimetric and fluorimetric fluoride sensing
    Patent number: 8541240
    Abstract: The present invention generally relates to fluoride receptor reagent compounds that are derived from one or more N-aryl or heteroaryl substituted 1,4,5,8-naphthalenetetracarboxydiimide (NDI) units. The invention also relates to associated methods for the detection of fluoride in a composition. ?-electron orbitals present in the NDI unit of the reagents form a complex with fluoride anions. It is believed that the anion-? interaction results in a charge transfer process between the fluoride anion and the NDI unit, resulting in a number of measurable effects (e.g., colorimetric response).
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: September 24, 2013
    Assignee: Florida State University Research Foundation, Inc.
    Inventors: Sourav Saha, Samit Guha
  • COLORIMETRIC AND FLUORIMETRIC FLUORIDE SENSING
    Publication number: 20110294229
    Abstract: The present invention generally relates to fluoride receptor reagent compounds comprising one or more N-aryl or heteroaryl substituted 1,4,5,8-naphthalenetetracarboxydiimide (NDI) units and an associated method for the detection of fluoride in a composition. ?-electron orbitals present in the NDI unit of the reagents form a complex with fluoride anions. It is believed that the anion-? interaction results in a charge transfer process between the fluoride anion and the NDI unit, resulting in a number of measurable effects (e.g., colorimetric response).
    Type: Application
    Filed: May 31, 2011
    Publication date: December 1, 2011
    Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Sourav Saha, Samit Guha