Patents by Inventor Dionysios D. Dionysiou

Dionysios D. Dionysiou 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).

  • Synthesis and immobilization of a ferrous sulfite catalyst and method of degrading fluorinated organic chemicals in aqueous media
    Patent number: 11400438
    Abstract: A composition includes an aqueous solution including at least one fluorinated organic compound; and a reaction product of a source of iron(II) and a source of sulfite in the presence of water and molecular hydrogen. A method of making a catalyst includes reacting a source of iron(II) and a source of sulfite in the presence of water and molecular hydrogen. The water may include less than or equal to 1 weight percent dissolved molecular oxygen. The catalyst may be used for degrading fluorinated organic chemicals in aqueous media.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 2, 2022
    Assignees: University of Cincinnati, The United States of America as Represented by the Administrator of the U.S. Environmental Protection Agency
    Inventors: Dionysios D. Dionysiou, Wael H. M. Abdelraheem, Mallikarjuna N. Nadagouda
  • SYNTHESIS AND IMMOBILIZATION OF A FERROUS SULFITE CATALYST AND METHOD OF DEGRADING FLUORINATED ORGANIC CHEMICALS IN AQUEOUS MEDIA
    Publication number: 20200179909
    Abstract: A composition includes an aqueous solution including at least one fluorinated organic compound; and a reaction product of a source of iron(II) and a source of sulfite in the presence of water and molecular hydrogen. A method of making a catalyst includes reacting a source of iron(II) and a source of sulfite in the presence of water and molecular hydrogen. The water may include less than or equal to 1 weight percent dissolved molecular oxygen. The catalyst may be used for degrading fluorinated organic chemicals in aqueous media.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 11, 2020
    Inventors: Dionysios D. Dionysiou, Wael H.M. Abdelraheem, Mallikarjuna N. Nadagouda