Patents by Inventor Phillippe Laval

Phillippe Laval 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 the production of methionine
    Patent number: 6911557
    Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: June 28, 2005
    Assignee: Adisseo France S.A.S.
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
  • Process for the production of methionine
    Patent number: 6545179
    Abstract: A process for the production of methionine which comprises (a) hydrolysing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Aventis Animal Nutrition, SA
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros
  • Process for the production of methionine
    Publication number: 20030045753
    Abstract: A process for the production of methionine which comprises (a) hydrolyzing the methionine amide in the presence of a catalyst comprising titanium to produce ammonium methioninate, said catalyst having a porosity of from 5 to 1000 nm, a total pore volume of from 0.2 to 0.55 cm3/g and a surface area of from 30 to 150 m2/g, and (b) a second step of recuperating methionine from the ammonium methioninate salt by removing ammonia. Also claimed is an industrial process for the production of methionine incorporating the aforementioned hydrolysis.
    Type: Application
    Filed: August 14, 2002
    Publication date: March 6, 2003
    Applicant: Aventis Animal Nutrition, S.A.
    Inventors: Herve Ponceblanc, Jean-Christophe Rossi, Phillippe Laval, Georges Gros