Patents by Inventor Francois Langreney

Francois Langreney 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).

  • Apparatus for the continuous crystallization of sugar
    Patent number: 4069065
    Abstract: Apparatus for the continuous crystallization of sugar comprising a tank separated into two longitudinal zones, one heated and the other not heated, transverse walls being provided in the upper part of the vat to avoid mixtures in the longitudinal direction due to the bubbling and splashing.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: January 17, 1978
    Inventor: Francois Langreney