Patents by Inventor H. V. Rasika Dias

H. V. Rasika Dias 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: 7893288
    Abstract: A new class of fluorinated or polyhalogenated triazepentadienes are disclosed. The synthesized triazapentadienes are thermally stable, soluble in typical solvents and have several metal binding sites for complexation with metal ions. The compounds are prepared as colorless crystalline solids. Synthesis takes advantage of a reaction with triethylamine. Synthesized triazapentadienes (with and without complexed metals) inhibit bacterial growth of both Gram positive and Gram-negative bacteria.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 22, 2011
    Assignee: Board of Regents, The University of Texas System
    Inventors: H. V. Rasika Dias, Lorraine G. van Waasbergen, Jaime A. Flores
  • Publication number: 20100282998
    Abstract: The present invention relates to a method of synthesizing poly(3,4-ethylenedioxythiophene), PEDOT in a reaction medium, an acid, an oxidant and an aqueous polyelectrolyte, and compositions thereof. The method is non-stoichiometric and provides no by-products, except water, or solid waste requiring post treatment. The method provides high yields of a composition that exhibits high conductivity.
    Type: Application
    Filed: November 20, 2008
    Publication date: November 11, 2010
    Inventors: H. V. Rasika Dias, Milan K. Dissanayake Mudiyanselage
  • Publication number: 20100145088
    Abstract: A new class of fluorinated or polyhalogenated triazepentadienes are disclosed. The synthesized triazapentadienes are thermally stable, soluble in typical solvents and have several metal binding sites for complexation with metal ions. The compounds are prepared as colorless crystalline solids. Synthesis takes advantage of a reaction with triethylamine. Synthesized triazapentadienes (with and without complexed metals) inhibit bacterial growth of both Gram positive and Gram-negative bacteria.
    Type: Application
    Filed: January 20, 2010
    Publication date: June 10, 2010
    Inventors: H.V. Rasika Dias, Lorraine G. van Waasbergen, Jaime A. Flores
  • Patent number: 7667077
    Abstract: A new class of fluorinated or polyhalogenated triazapentadienes are disclosed. The synthesized triazapentadienes are thermally stable, soluble in typical solvents and have several metal binding sites for complexation with metal ions. The compounds are prepared as colorless crystalline solids. Synthesis takes advantage of a reaction with triethylamine. Synthesized triazapentadienes (with and without complexed metals) inhibit bacterial growth of both Gram positive and Gram-negative bacteria.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: February 23, 2010
    Assignee: Board of Regents, The University of Texas
    Inventors: H. V. Rasika Dias, Lorraine G. Van Waasbergen, Jaime A. Flores