Patents by Inventor Alexandra Teleki Harsanyi

Alexandra Teleki Harsanyi 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).

  • Gas phase production of coated titania
    Patent number: 8663380
    Abstract: A flame spray pyrolysis process for the preparation of ultrafine titania particles coated with a smooth, homogeneous coating of one or more metal oxides is provided. The metal oxide coating is achieved by contacting the titania particles with a metal oxide precursor downstream of the titania formation zone, after the titania particles have formed. The process provides titania particles with a high rutile content and a smooth and homogeneous coating of a metal oxide.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: March 4, 2014
    Assignee: Cristal USA Inc.
    Inventors: M. Kamal Akhtar, Sotiris Emmanuel Pratsinis, Martin Christian Heine, Alexandra Teleki Harsanyi, Reto Strobel
  • Surface functionalization and coating of flame-generated nanoparticles
    Publication number: 20090252965
    Abstract: A method for generating a chemically bonded organic functionality on the surface of particles or for condensing an organic compound onto the particle surface giving an organic coating is described. The method comprises a step of contacting a vapour containing an organic compound and a gaseous process stream containing flame-generated particles so as to react the organic compound with surface groups on the particles to give a chemically bonded organic functionality to the particle surface or so as to result in an organic coating.
    Type: Application
    Filed: April 28, 2006
    Publication date: October 8, 2009
    Applicant: Eidgenössische Technische Hochschule Zürich
    Inventors: Murray J. Height, Alexandra Teleki Harsanyi, Marc File, Sotiris E. Pratsinis
  • GAS PHASE PRODUCTION OF COATED TITANIA
    Publication number: 20090126604
    Abstract: A flame spray pyrolysis process for the preparation of ultrafine titania particles coated with a smooth, homogeneous coating of one or more metal oxides is provided. The metal oxide coating is achieved by contacting the titania particles with a metal oxide precursor downstream of the titania formation zone, after the titania particles have formed. The process provides titania particles with a high rutile content and a smooth and homogeneous coating of a metal oxide.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 21, 2009
    Inventors: M. Kamal Akhtar, Sotiris Emmanuel Pratsinis, Martin Christian Heine, Alexandra Teleki Harsanyi, Reto Strobel