Patents by Inventor Matthijs Van De Waal

Matthijs Van De Waal 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).

  • Use of thio derivatives as perfuming and flavoring ingredients
    Patent number: 7008919
    Abstract: The compounds of formula in the form of any one of their isomers or of mixtures thereof, and wherein R represents a hydrogen atom or an acetyl group, R1 represents a methyl or an ethyl group and R2 represents a C3–C4 linear or branched alkyl group, are useful for the perfume and flavor industries.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: March 7, 2006
    Assignee: Firmenich SA
    Inventors: Matthijs Van De Waal, Sina Dorothea Escher, Yvan Niclass
  • Use of thio derivatives as perfuming and flavoring ingredients
    Publication number: 20030040460
    Abstract: The compounds of formula 1
    Type: Application
    Filed: March 25, 2002
    Publication date: February 27, 2003
    Inventors: Matthijs Van De Waal, Sina Dorothea Escher, Yvan Niclass
  • 1-methoxy-3-hexanethiol and its S-acetyl derivative as perfuming and flavoring ingredients
    Patent number: 6129941
    Abstract: A compound of formula ##STR1## wherein R represents a hydrogen atom or an acetyl group, is useful in perfumery and in the field of flavors. The compound of formula (I) confer an odor and flavor effect extremely powerful of the clary-sage type, even when used in small amounts.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: October 10, 2000
    Assignee: Firmenich SA
    Inventors: Sina Dorothea Escher, Matthijs Van De Waal