Patents by Inventor Ivan Sondi

Ivan Sondi 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).

  • Semiconductor nanoparticles for analysis of blood cell populations and methods of making same
    Patent number: 6514772
    Abstract: A semiconductor nanoparticle for use in analysis of biological samples is described. This semiconductor nanoparticle is composed of an aminodextran which is bound to at least one nanoparticle of the formula (X Y)n wherein X is selected from the group comprising Cd2+, Hg2+, and Zn2+ and combinations thereof, and Y is selected from the group comprising S2−, Se2− and Te2− and combinations thereof; and n=approximately 50 to 1000. Also provided are methods of making these semiconductor nanoparticles and methods of making conjugates composed of these semiconductor nanoparticles linked to ligands. Also described are uses for the conjugates in a variety of biological assays.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: February 4, 2003
    Assignee: Coulter International Corp.
    Inventors: Olavi Siiman, Egon Matijevic, Ivan Sondi
  • Novel semiconductor nanoparticles for analysis of blood cell populations and methods of making same
    Publication number: 20010039060
    Abstract: A semiconductor nanoparticle for use in analysis of biological samples is described. This semiconductor nanoparticle is composed of an aminodextran which is bound to at least one nanoparticle of the formula (XY)n wherein X is selected from the group comprising Cd2+, Hg2+, and Zn2+ and combinations thereof, and Y is selected from the group comprising S2−, Se2− and Te2− and combinations thereof; and n=approximately 50 to 1000. Also provided are methods of making these semiconductor nanoparticles and methods of making conjugates composed of these semiconductor nanoparticles linked to ligands. Also described are uses for the conjugates in a variety of biological assays.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 8, 2001
    Inventors: Olavi Siiman, Egon Matijevic, Ivan Sondi
  • Semiconductor nanoparticles for analysis of blood cell populations and methods of making same
    Patent number: 6235540
    Abstract: A semiconductor nanoparticle for use in analysis of biological samples is described. This semiconductor nanoparticle is composed of an aminodextran which is bound to at least one nanoparticle of the formula (X Y)n wherein X is selected from the group comprising Cd2+, Hg2+, and Zn2+ and combinations thereof; and Y is selected from the group comprising S2−, Se2− and Te2− and combinations thereof; and n=approximately 50 to 1000. Also provided are methods of making these semiconductor nanoparticles and methods of making conjugates composed of these semiconductor nanoparticles linked to ligands. Also described are uses for the conjugates in a variety of biological assays.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: May 22, 2001
    Assignee: Coulter International Corp.
    Inventors: Olavi Siiman, Egon Matijevic, Ivan Sondi