Patents by Inventor Jean-Louis Leuba

Jean-Louis Leuba 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).

  • Patent number: 6551633
    Abstract: A pet milk powder of a cow's milk powder which contains lactose, and lactase in an amount sufficient to reduce the symptoms of gastrointestinal intolerance in pets when the powder or a solution made from the powder is ingested by the pet. At least a portion of the lactose in the pet milk powder is hydrolyzed upon reconstitution of the powder with a solvent. Also, a pet milk-based drink made by reconstituting the powder with a solvent such as water.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: April 22, 2003
    Assignee: Nestec S.A.
    Inventors: Francois Couzy, Jean-Louis Leuba
  • Publication number: 20020192347
    Abstract: A pet milk powder of a cow's milk powder which contains lactose, and lactase in an amount sufficient to reduce the symptoms of gastrointestinal intolerance in pets when the powder or a solution made from the powder is ingested by the pet. At least a portion of the lactose in the pet milk powder is hydrolyzed upon reconstitution of the powder with a solvent. Also, a pet milk-based drink made by reconstituting the powder with a solvent such as water.
    Type: Application
    Filed: August 2, 2002
    Publication date: December 19, 2002
    Inventors: Francois Couzy, Jean-Louis Leuba, Christiane Leuba, Frederic Leuba, Aurelie Leuba
  • Patent number: 6471999
    Abstract: A pet milk powder which, when reconstituted and fed to a pet as a nutritional milk, results in reduced gastrointestinal intolerance. This powder is a cow's milk powder that contains lactose and to which is added a lactase, preferably one that is active under acidic conditions, such as a &bgr;-galactosidase.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: October 29, 2002
    Assignee: Nestec S.A.
    Inventors: Francoise Couzy, Jean-Louis Leuba
  • Publication number: 20020031571
    Abstract: A pet milk powder which, when reconstituted and fed to a pet as a nutritional milk, results in reduced gastrointestinal intolerance. This powder is a cow's milk powder that contains lactose and to which is added a lactase, preferably one that is active under acidic conditions, such as a &bgr;-galactosidase.
    Type: Application
    Filed: March 7, 2001
    Publication date: March 14, 2002
    Inventors: Francois Couzy, Jean-Louis Leuba, Christiane A. Leuba
  • Patent number: 5057542
    Abstract: Chitosan in a form of a polymer having a molecular weight of from 3,000 to 700,000 is incorporated into a cosmetic preparation in an amount effective for inhibiting growth of microorganisms in the cosmetic preparation.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: October 15, 1991
    Assignee: Nestec S.A.
    Inventors: Jean-Louis Leuba, Harriet Link, Peter Stoessel, Jean-Louis Viret
  • Patent number: 4918016
    Abstract: Enzymatic catalysts are produced from mineral particles coated with chitosan. The enzymes may be directly absorbed onto the surface after a cross-linking treatment to stablize the coating or immobilized by chemical bonds after a treatment with a bifunctional reagent, for example with glutaraldehyde. The stability of the biocatalyst is advantageously increased by retreatment with a bifunctional reagent after immobilization of the enzyme. Enzymes sensitive to glutaraldehyde are fixed by a carbodiimide. The catalysts thus prepared are insoluble in aqueous solutions. The particles are rigid and incompressible and are suitable for use in fixed-bed and fluidized-bed reactors. The immobilization yield may reach 90% depending on the circumstances.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: April 17, 1990
    Assignee: Nestec S.A.
    Inventors: Jean-Louis Leuba, Albert Renken, Erwin Flaschel
  • Patent number: 4701339
    Abstract: An extract of squid liver in a brine is prepared and the cleaned and eviscerated squid is immersed in the extract to dissolve the thin and resistant membrane situated between the flesh and the skin of the squid.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: October 20, 1987
    Assignee: Nestec S.A.
    Inventors: Jean-Louis Leuba, Inge Meyer, Else M. Andersen
  • Patent number: 4094743
    Abstract: An enzymatically active product insoluble in aqueous medium is prepared by treating chitosan as an inert support with a dialdehyde, after which an enzyme is fixed to the support thus treated. The chitosan may be in powder-form or in flake-form, for example obtained by fragmenting a film of anhydrous chitosan. The enzymatically active product insoluble in aqueous medium may be treated with a compound containing an amino group and/or with a reducing reagent. The product may be freeze dried optionally in the presence of twice its weight of mannitol.
    Type: Grant
    Filed: April 1, 1976
    Date of Patent: June 13, 1978
    Assignee: Societe d'Assistance Technique pour Produits Nestle S.A.
    Inventor: Jean-Louis Leuba