Patents by Inventor Frédéric SCHAB

Frédéric SCHAB 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).

  • Method for purifying aromatic amino acids
    Patent number: 10975031
    Abstract: A method for purifying an amino acid from an initial mixture is disclosed, in which the amino acid includes an aromatic ring and has an acidity constant Ka, the method including: a first step of putting the initial mixture into contact with a strong cation resin, at a pH greater than or equal to pKa; and a second elution step with an aqueous solution of eluent having a pH greater than the pH of the first step, giving the possibility of collecting a flow enriched in the amino acid.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: April 13, 2021
    Assignee: Novasep Process
    Inventors: Damien Brichant, Frédéric Schab, Stanislas Baudouin, Vincent Oriez
  • Method for purifying glycol used as a hydrate inhibitor
    Patent number: 10953347
    Abstract: The invention concerns a purification method comprising: providing a flow comprising a glycol, monovalent ions and multivalent ions; treating this flow with ion exclusion chromatography comprising: injecting the flow into a chromatographic unit comprising an ion exchange stationary phase; injecting an eluent into the chromatographic unit; collecting a fraction at the outlet of the chromatographic unit; the collected fraction being enriched with glycol and depleted of monovalent ions and multivalent ions relative to the flow. The invention also concerns an installation adapted to implement this method, and its application to the regeneration of an anti-hydrate agent.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: March 23, 2021
    Assignee: Novasep Process
    Inventors: Frédéric Schab, Michel Cotillon, Teddy Ebran, Vincent Gavroy
  • Method for Purifying Glycol Used as a Hydrate Inhibitor
    Publication number: 20170361247
    Abstract: The invention concerns a purification method comprising: providing a flow comprising a glycol, monovalent ions and multivalent ions; treating this flow with ion exclusion chromatography comprising: injecting the flow into a chromatographic unit comprising an ion exchange stationary phase; injecting an eluent into the chromatographic unit; collecting a fraction at the outlet of the chromatographic unit; the collected fraction being enriched with glycol and depleted of monovalent ions and multivalent ions relative to the flow. The invention also concerns an installation adapted to implement this method, and its application to the regeneration of an anti-hydrate agent.
    Type: Application
    Filed: July 22, 2015
    Publication date: December 21, 2017
    Inventors: Frédéric Schab, Michel Cotillon, Teddy Ebran, Vincent Gavroy
  • Method For Purifying Aromatic Amino Acids
    Publication number: 20160326112
    Abstract: A method for purifying an amino acid from an initial mixture is disclosed, in which the amino acid includes an aromatic ring and has an acidity constant Ka, the method including: a first step of putting the initial mixture into contact with a strong cation resin, at a pH greater than or equal to pKa; and a second elution step with an aqueous solution of eluent having a pH greater than the pH of the first step, giving the possibility of collecting a flow enriched in the amino acid.
    Type: Application
    Filed: January 7, 2014
    Publication date: November 10, 2016
    Applicant: NOVASEP PROCESS
    Inventors: Damien BRICHANT, Frédéric SCHAB, Stanislas BAUDOUIN, Vincent ORIEZ