Patents by Inventor Jacky Lefrancois

Jacky Lefrancois 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 of drying carrageenans
    Patent number: 5001844
    Abstract: The invention relates to a method of drying carrageenans extracted from red algae by alkaline treatment in an aqueous medium. This method consists in subjecting the moist fibers to the action of microwaves at 100 to 10,000 MHz in such a way that the temperature of the mass does not exceed 100.degree. C. Application: preparation of carrageenans.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: March 26, 1991
    Assignee: Sanofi
    Inventors: Jean-Pierre Lhonneur, Jacky Lefrancois