Patents by Inventor Jean Ladet

Jean Ladet 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 treatment of anthocyane extracts
    Patent number: 4083779
    Abstract: A method of treatment of an anthocyanic extract, characterized in that it mainly comprises an ultrafiltration stage which consists in separating from said extract by ultrafiltration, on the one hand a liquid filtrate which passes through an ultrafilter membrane and on the other hand a first concentrate containing more condensed forms of anthocyanins, and a reverse osmosis stage which consists in separating from said filtrate by reverse osmosis, on the one hand a diffusate which passes through a reverse osmosis membrane and on the other hand a second concentrate which contains less condensed forms of anthocyanins.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: April 11, 1978
    Assignee: S.E.F.C.A.L. Societe d'Etudes, de Fabrication et de Commercialisation de Colorants Alimentaires
    Inventors: Pierre Combe, Jean Ladet