Patents by Inventor Daniel Lecat

Daniel Lecat 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).

  • Transflective colour filter, and a method of manufacturing such a filter
    Patent number: 5570240
    Abstract: A transflective optical filter comprises a single transparent or transluscent substrate; a colored slice made up of a plurality of layers, each corresponding to one color out of at least two colors; a light diffusing layer; and an opaque mask on which the marks to be displayed in color are represented by transparent zones, the colored slice and the mask consisting of photographic emulsions. A method for making that filter involves multiple exposures of a same film having a multi-colored "slice" and a monochrome photosensitive layer.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: October 29, 1996
    Assignee: Societe d'Applications Generales d'Electricite et Mecanique-Sagem
    Inventors: Christophe Deffontaines, Ambroise Parker, Daniel Lecat
  • Lipases and lipase extracts, their preparation process and their therapeutic use
    Patent number: 5075231
    Abstract: Process for the preparation of a gastric lipase. The stomachs of rabbits or horses undergo extraction by an acid aqueous medium, the lipase extract is salted out by the addition of hydrosoluble salts then, by filtration on a molecular sieve, followed by separation using ion exchange chromatography, an elution fraction containing the lipase is collected.Medicament for fighting against malabsorptions of fatty substances.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: December 24, 1991
    Assignee: Jouveinal S.A.
    Inventors: Herve Moreau, Robert Verger, Daniel Lecat, Jean-Louis Junien