Patents by Inventor Eric Walther

Eric Walther 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: 12583809
    Abstract: The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention also comprises a process for producing compound of formula (I).
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 24, 2026
    Assignee: FIRMENICH SA
    Inventors: Anthony Alexander Birkbeck, Atulkumar Manvar, Eric Walther
  • Publication number: 20250223261
    Abstract: The present disclosure generally relates to an improved process for making certain aminoquinoline compounds that have utility as sweeteners and sweetness-enhancing agents. In certain aspects, the disclosure provides a method of making certain such aminoquinoline compounds by a process that includes reacting an aminobenzonitrile compound with an alkyl acetoacetate compound to form an enaminonitrile compound that is subsequently converted to an aminoquinoline compound.
    Type: Application
    Filed: April 28, 2023
    Publication date: July 10, 2025
    Applicant: Firmenich SA
    Inventors: Jean-Francois BASSET, Eric WALTHER, Herve MOSIMANN, Harvey RANDALL, Simon LINDER, Maurus MARTY
  • Publication number: 20230271911
    Abstract: The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention also comprises a process for producing compound of formula (I).
    Type: Application
    Filed: July 20, 2021
    Publication date: August 31, 2023
    Inventors: Anthony Alexander BIRKBECK, Atulkumar MANVAR, Eric WALTHER
  • Patent number: 10597605
    Abstract: A composition of matter comprising a) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1 represents a hydrogen atom or a C1-2 alkyl group; and R represents a group of formula —CH2C(Me)2OH; with R being, relative to position 1, a meta, a para substituent of the aromatic ring or a mixture thereof; and b) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1 and R have the same meaning as defined in formula (I); their uses as perfuming ingredients as well as perfuming composition and consumer products including such a composition of matter and a process to prepare the composition.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 24, 2020
    Assignee: FIRMENICH SA
    Inventors: Lionel Saudan, Francesco Santoro, Eric Walther
  • Patent number: 10526562
    Abstract: A composition of matter including: a) at least one compound of formula (I) in the form of any one of its isomers or a mixture thereof; wherein R1 represents a hydrogen atom or a C1-2 alkyl group; R2 represents a hydrogen atom or a methyl group; and R represents a group of formula —[CH2]nC(Me)2OH, wherein n is 0, 1 or 2; with R being, relative to position 1, an ortho, meta or para substituent of the aromatic ring; and b) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1, R2 and R have the same meaning as defined in formula (I); uses of the composition of matter as perfuming ingredients, perfuming compositions and in consumer products, along with a process to prepare the composition of matter.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: January 7, 2020
    Assignee: Firmenich SA
    Inventors: Eric Walther, Julien Coulomb
  • Publication number: 20190276769
    Abstract: A composition of matter comprising a) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1 represents a hydrogen atom or a C1-2 alkyl group; and R represents a group of formula —CH2C(Me)2OH; with R being, relative to position 1, a meta, a para substituent of the aromatic ring or a mixture thereof; and b) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1 and R have the same meaning as defined in formula (I); their uses as perfuming ingredients as well as perfuming composition and consumer products including such a composition of matter and a process to prepare the composition.
    Type: Application
    Filed: January 17, 2018
    Publication date: September 12, 2019
    Applicant: FIRMENICH SA
    Inventors: Lionel SAUDAN, Francesco SANTORO, Eric WALTHER
  • Publication number: 20190249111
    Abstract: A composition of matter including: a) at least one compound of formula (I) in the form of any one of its isomers or a mixture thereof; wherein R1 represents a hydrogen atom or a C1-2 alkyl group; R2 represents a hydrogen atom or a methyl group; and R represents a group of formula —[CH2]nC(Me)2OH, wherein n is 0, 1 or 2; with R being, relative to position 1, an ortho, meta or para substituent of the aromatic ring; and b) at least one compound of formula in the form of any one of its isomers or a mixture thereof; wherein R1, R2 and R have the same meaning as defined in formula (I); uses of the composition of matter as perfuming ingredients, perfuming compositions and in consumer products, along with a process to prepare the composition of matter.
    Type: Application
    Filed: January 17, 2018
    Publication date: August 15, 2019
    Inventors: Eric WALTHER, Julien COULOMB
  • Patent number: 6995291
    Abstract: The present invention relates to the field of organic synthesis and more precisely to a process for the synthesis of an unsaturated aldehyde or ketone by oxidation of the corresponding alcohol. The oxidation is performed by a hypochlorite salt and a catalytic amount of a N-(2,2,6,6-tetraalkyl-4-piperidinyl-N-oxyl)-2-amino-1,3,5-triazine compound, preferably a N-oxyl derivative of one of the polymers known under the trademark Chimassorb® 944 or 2020.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: February 7, 2006
    Assignee: Firmenich SA
    Inventor: Eric Walther
  • Publication number: 20040064000
    Abstract: The present invention relates to the field of organic synthesis and more precisely to a process for the synthesis of an unsaturated aldehyde or ketone by oxidation of the corresponding alcohol. The oxidation is performed by a hypochlorite salt and a catalytic amount of a N-(2,2,6,6-tetraalkyl-4-piperidinyl-N-oxyl)-2-amino-1,3,5-triazine compound, preferably a N-oxyl derivative of one of the polymers known under the trademark Chimassorb® 944 or 2020.
    Type: Application
    Filed: September 22, 2003
    Publication date: April 1, 2004
    Inventor: Eric Walther