Patents by Inventor Felix Castellano

Felix Castellano 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).

  • Water soluble luminescence oxygen sensor and method
    Patent number: 6306661
    Abstract: The oxygen concentration of a sample is determined utilizing a water-soluble metal ligand complex which is brought into interactive proximity with the sample to form a mixture. The mixture is irradiated with electromagnetic light energy so as to cause emission of light indicative of oxygen. The emitted light is measured, and the measurement utilized so as to determine oxygen concentration of the sample.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: October 23, 2001
    Inventors: Joseph R. Lakowicz, Felix Castellano
  • Method of conducting an assay of a sample containing an analyte of interest
    Patent number: 6214628
    Abstract: In accordance with the present invention, a method of conducting an assay of a sample containing an analyte of interest includes the step of forming a mixture so as to bring a metal-ligand complex into interactive proximity with the sample containing the analyte of interest. The mixture is irradiated with electromagnetic light energy so as to cause emission of light indicative of the analyte of interest. The emitted light is measured, and the measurement of the emitted light is utilized to measure the analyte of interest. The metal-ligand complex can be [Re(bcp)(CO)3(4-COOHPy)]+, [Os(phen)2(aphen)]2+, [Os(tpy)(triphos)]2+, [Os(tppz)2]2+, and [Os(ttpy)2]2+, or the like. Also, the present invention is directed to a metal-ligand complex of the formula [Re(bcp)(CO)3(4-COOHPy)]+.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: April 10, 2001
    Inventors: Joseph R. Lakowicz, Felix Castellano, Zakir Murtaza