Patents by Inventor Joanell Veronica Hoijer

Joanell Veronica Hoijer 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).

  • Apparatus and method for determining the quanity of an analyte in a biological sample by means of transmission photometry
    Patent number: 5770389
    Abstract: A device and method for quantitative determination of an analyte in a biological sample utilizes a non-transparent support medium for retaining a chromatogenic reaction product with the medium being exposed to a source of light for transmitting therethrough a scattered, uniform response light signal which is collected at a photosensitive device whereby the amount of the analyte is correlated to the intensity of the response light signal. The response light signal may be converted to a time-duration signal proportional to light intensity to facilitate the quantitative determination.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: June 23, 1998
    Assignee: Abbott Laboratories
    Inventors: Shan-Fun Ching, Joanell Veronica Hoijer, Donald Irvine Stimpson, Julian Gordon