Patents by Inventor Jean-Louis Magadur

Jean-Louis Magadur 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).

  • Method for sampling and fixing urinary metabolites on an immobilizing support and apparatus therefor
    Patent number: 4159193
    Abstract: A method for sampling and fixing urinary metabolites on an immobilizing support which is a paper comprising a substance appropriately activated before use. The determination of the or each required metabolite is expressed in relation to the determination of a metabolite where excretion is constant with time. The appropriately activated substance may be an ion exchange resin or silica gel. The method may be used for determining delta-aminolevulinic acid (ALA), or trichloroacetic acid and trichloroethanol conjugated with glucuronic acid, in urine samples.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: June 26, 1979
    Assignee: I.N.R.S., Institut National de Recherche et de Securite pour la Prevention des Accidents du travail et des Maladies Professionnelles
    Inventors: Philippe Gauntley, Jean-Louis Magadur, Georges Morel