Patents by Inventor Marie-France Planard

Marie-France Planard 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).

  • Polysaccharide, its applications, its production by fermentation and the pseudomonas strain which produces it
    Patent number: 5455343
    Abstract: This polysaccharide consists of repeating units which are composed of a backbone, comprising 2 radicals of D-mannose, 2 of D-glucose, 1 of D-galactose, 1 of D-glucuronic acid, 1 of D-xylose, 1 of L-lyxose and 1 of L-fucose, on which pyruvic acid groups may be grafted and of which certain of the saccharide hydroxyl groups are esterified as acetate. It can be employed as a viscosity agent for thickening and gelling.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: October 3, 1995
    Assignee: Elf Sanofi
    Inventors: Thierry Fontaine, Bernard Fournet, Marie France Planard
  • Process for preparing protease from Endothia parasitica using glucanases to reduce viscosity
    Patent number: 5187081
    Abstract: The present invention relates to a process for preparing protease from Endothia parasitica, wherein a glucanase or a mixture of glucanases acting on the viscosity increasing polysaccharides co-produced by the fungus, is introduced in the medium during or after fermentation.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: February 16, 1993
    Assignee: Sanofi
    Inventors: Rene Couderc, Bruno Eyssautier, Martine Laporte, Marie-France Planard