Patents by Inventor Jean-Louis Druex

Jean-Louis Druex 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 the ionic exchange of ionized starches and the ionized starches thus obtained
    Patent number: 5300150
    Abstract: The invention has as its object a process for the ionic exchange of ionised starches, consisting of washing the ionised starch which is in the form of a granular solid by means of a solution containing one or more exchange ions capable of replacing the counter-ions present on the starch.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: April 5, 1994
    Assignee: Roquette Freres
    Inventors: Patrick Fuertes, Jean-Louis Druex