Patents by Inventor Daniel A. Nealon

Daniel A. Nealon 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).

  • Analytical elements containing non-reactive blocking dyes
    Patent number: 5223390
    Abstract: An analytical element for quantitatively assaying an analyte by measuring reflection density in the range 320 to 360 nm. The element comprises a reagent layer and a registration layer. One of such layers contains a dye which has a low absorbtivity band from 320 to 360 nm and a high absorbtivity band from 640 to 720 nm.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: June 29, 1993
    Assignee: Eastman Kodak Company
    Inventors: John E. Hamann, Merrit N. Jacobs, Daniel A. Nealon, Charles H. Appell, Richard L. Detwiler
  • Carbon dioxide assay for body fluids comprising carbonic anhydrase
    Patent number: 5112740
    Abstract: A multilayer element for assaying carbon dioxide is disclosed. The elememt comprises a spreading layer comprising acetazolamide, a reagent layer comprising phosphoenolpyruvate carboxylase and phosphoenolypyruvate and a registration layer comprising reduced NAD and maleate dehydrogenase.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: May 12, 1992
    Assignee: Eastman Kodak Company
    Inventors: Daniel A. Nealon, Richard B. Coolen