Patents by Inventor Myrna G. Ulanday

Myrna G. Ulanday 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).

  • Reagent and process for the determination of hemoglobin in blood
    Patent number: 4800167
    Abstract: A reagent system for determing the hemoglobin content of whole blood comprising an aqueous solution of polyvinylpyrrolidone of molecular weight from about 10,000 to about 360,000 at a pH greater than about 8.0 to denature hemoglobin in whole blood. A method is also provided wherein a blood sample is treted with an aqueous solution of polyvinylpyrrolidone of molecular weight from about 10,000 to about 360,000 at a basic pH sufficient to denature the hemoglobin present in the whole blood to form a stable product whereafter the absorbance of the stable product of the blood sample and polyvinylpyrrolidone of molecular weight from about 10,000 to about 360,000 polymer reagent system is measured at a wavelength of approximately 575 nm to determine the hemoglobin contentration.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: January 24, 1989
    Assignee: Abbott Laboratories
    Inventors: Mark W. Bailey, Myrna G. Ulanday