Patents by Inventor Nicole Autissier

Nicole Autissier 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).

  • Process for preparing iodothyronines and iodothyroacetic acids by electrochemical reduction at controlled potential
    Patent number: 4490221
    Abstract: The invention relates to a process for preparing tri-iodo-, di-iodo- and mono-iodothyronines and tri-iodo, di-iodo and mono-iodothyroacetic acids, respectively from thyronine, triiodo or diiodothyro- nine and tetra-, tri- or diiodothyroacetic acid, by electrochemical reduction at controlled potential, in an aqueous medium rendered alkaline by the addition in particular of a tetraalkylammonium hydroxide, whereby either the iodine in 5 position or the iodine in 3 position is selectively reduced, depending on the potential at which operation is carried out, and which is determined previously by plotting a polarograph of the starting substance.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: December 25, 1984
    Assignee: Spiral Societe a Responsabilite Limitee dite
    Inventors: Edmond Collange, Michel Paris, Nicole Autissier