Patents by Inventor Mariana A. Ioneva

Mariana A. Ioneva 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).

  • Titania-coated honeycomb catalyst matrix for UV-photocatalytic oxidation of organic pollutants, and process for making
    Patent number: 6649561
    Abstract: A titania-coated honeycomb catalyst matrix is provided for the ultraviolet-photocatalytic oxidation of organic pollutants in a flowing fluid. A honeycomb-shaped skeletal structure (12) has a thin, lightweight substrate (18) of metal or ceramic, typically an aluminum alloy, and a surface coating (20) of photocatalyst, such as titania. The photocatalyst (20) is bonded to the substrate (18) via a thin oxide layer (18′) on the substrate. The oxide layer (18′) may be grown on the substrate. The photocatalyst coating (20) is made by mixing (30) titania powder in a TiO2 sol-gel to form a titania slurry. The substrate with oxide layer is coated (30) with the titania slurry and then heat treated (31). The photocatalyst coating (20) is typically applied to substrate sheets (40, 60, 62) preformed for assembly into a honeycomb-shaped skeletal structure (12) having an array of parallel cells (46, 46′).
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: November 18, 2003
    Assignee: United Technologies Corporation
    Inventors: Joseph J. Sangiovanni, Zissis A. Dardas, Mariana A. Ioneva, Lin Li
  • Titania-coated honeycomb catalyst matrix for UV-photocatalytic oxidation of organic pollutants, and process for making
    Publication number: 20020160913
    Abstract: A titania-coated honeycomb catalyst matrix is provided for the ultraviolet-photocatalytic oxidation of organic pollutants in a flowing fluid. A honeycomb-shaped skeletal structure (12) has a thin, lightweight substrate (18) of metal or ceramic, typically an aluminum alloy, and a surface coating (20) of photocatalyst, such as titania. The photocatalyst (20) is bonded to the substrate (18) via a thin oxide layer (18′) on the substrate. The oxide layer (18′) may be grown on the substrate. The photocatalyst coating (20) is made by mixing (30) titania powder in a TiO2 sol-gel to form a titania slurry. The substrate with oxide layer is coated (30) with the titania slurry and then heat treated (31). The photocatalyst coating (20) is typically applied to substrate sheets (40, 60, 62) preformed for assembly into a honeycomb-shaped skeletal structure (12) having an array of parallel cells (46, 46′).
    Type: Application
    Filed: February 26, 2001
    Publication date: October 31, 2002
    Inventors: Joseph J. Sangiovanni, Zissis A. Dardas, Mariana A. Ioneva, Lin Li