Patents by Inventor Jean-Michel Joerger

Jean-Michel Joerger 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 synthesising vitamin A
    Patent number: 11365169
    Abstract: A method for preparing a compound of formula (I) in which R1 is selected from H and alkyls, R2 is selected from H, alkyls, OR? where R? is selected from alkyls, silyls, CO-alkyl, R3 is selected from the acyl groups of the CO(R?) type, and the CO(OR?), CO(NR?R??), PO(OR?)(OR??), PO(OR?)(R??) groups where R? and R??, independently of each other, are selected from H and alkyls, R represents a C(R4)?C(R5)(R6) group where R4, R5 and R6, independently of each other, are selected from H, linear or cyclic alkyls and alkenyls, aryls, alkylaryls, or R4 and R5 together form a saturated or unsaturated, substituted or unsubstituted ring, from a compound of formula (II) or a compound of formula (III) in which, R, R1, R2 and R3 have the above definition.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: June 21, 2022
    Inventors: Patrick Rey, Robert Huet, Jean-Michel Joerger, Vivien Henryon
  • METHOD FOR SYNTHESISING VITAMIN A
    Publication number: 20210309597
    Abstract: A method for preparing a compound of formula (I) in which R1 is selected from H and alkyls, R2 is selected from H, alkyls, OR? where R? is selected from alkyls, silyls, CO-alkyl, R3 is selected from the acyl groups of the CO(R?) type, and the CO(OR?), CO(NR?R??), PO(OR?)(OR??), PO(OR?)(R??) groups where R? and R??, independently of each other, are selected from H and alkyls, R represents a C(R4)?C(R5)(R6) group where R4, R5 and R6, independently of each other, are selected from H, linear or cyclic alkyls and alkenyls, aryls, alkylaryls, or R4 and R5 together form a saturated or unsaturated, substituted or unsubstituted ring, from a compound of formula (II) or a compound of formula (ill) in which, R, R1, R2 and R3 have the above definition.
    Type: Application
    Filed: August 19, 2019
    Publication date: October 7, 2021
    Inventors: Patrick REY, Robert HUET, Jean-Michel JOERGER, Vivien HENRYON
  • Method for preparing an amino acid from 2 aminobutyrolactone
    Patent number: 8853428
    Abstract: The invention relates to a method for preparing an amino acid, or its salts, from 2-aminobutyrolactone (2ABL), said amino acid fitting the formula I, XCH2CH2CHNH2COOH, wherein X is such that X? represents a nucleophilic ion, according to which N-carboxylation of 2-aminobutyrolactone (2ABL) is achieved with carbon dioxide, and the thereby obtained 2ABL carbamate is reactive with an XH reagent or its salts.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: October 7, 2014
    Assignee: Adisseo France S.A.S.
    Inventors: Robert Huet, Jean-Michel Joerger, Vivien Henryon
  • METHOD FOR PREPARING AN AMINO ACID FROM 2 AMINOBUTYROLACTONE
    Publication number: 20130184474
    Abstract: The invention relates to a method for preparing an amino acid, or its salts, from 2-aminobutyrolactone (2ABL), said amino acid fitting the formula I, XCH2CH2CHNH2COOH, wherein X is such that X? represents a nucleophilic ion, according to which N-carboxylation of 2-aminobutyrolactone (2ABL) is achieved with carbon dioxide, and the thereby obtained 2ABL carbamate is reactive with an XH reagent or its salts.
    Type: Application
    Filed: October 4, 2011
    Publication date: July 18, 2013
    Applicant: ADISSEO FRANCE S.A.S.
    Inventors: Robert Huet, Jean-Michel Joerger, Vivien Henryon