Patents by Inventor Richard Vadaszy

Richard Vadaszy 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).

  • Stabilizer for urea nitrogen color reagent
    Patent number: 4543337
    Abstract: A storage stable diagnostic reagent for colorimetric determination of urea nitrogen, the reagent having enhanced sensitivity, and comprises a chromogenic agent, a color enhancer, and a cyothioamine, as well as method employing said reagent.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: September 24, 1985
    Assignee: Technicon Instruments Corporation
    Inventors: Sigrid G. Klotzsch, Richard Vadaszy