Patents by Inventor Iordan Kostov

Iordan Kostov 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).

  • Publication number: 20060013734
    Abstract: The present invention relates to optical ion sensors, including fluorescence optical ion sensors for use in liquid media in the fields of biology, biotechnology, chemistry, medicine, etc. The present invention provides for optical ion sensors that may be attached to dry hydrophilic or hydrophobic surfaces so as to allow continuous sensing. The optical sensors of the present invention may be sterilized and stored for extended periods of time before use.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 19, 2006
    Applicant: University of Maryland, Baltimore County
    Inventor: Iordan Kostov
  • Publication number: 20050090014
    Abstract: The present invention provides ratiometric fluorescent pH sensors for non-invasive, continuous monitoring of pH in such applications as fermentation processes. The ratiometric fluorescent pH sensors comprise a fluorescent dye that exhibits a shift in excitation wavelength with a corresponding shift in pH in the local environment of said fluorescent dye. Ratiometric measurements of the emission intensities at dual excitation maxima correlate to pH. Also provided is a fluorescent dye 6-methacryloyl-8-hydroxy-1,3-pyrene disulfonic acid (MA-HPDS). Further provided are systems and methods to non-invasively and continuously monitor pH.
    Type: Application
    Filed: June 30, 2003
    Publication date: April 28, 2005
    Inventors: Govind Rao, Iordan Kostov, Haley Kermis, Peter Harms