Patents by Inventor Yves Tollard D'Audiffret

Yves Tollard D'Audiffret 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).

  • Compositions containing compounds producing a cooling sensation
    Patent number: 4029759
    Abstract: Compositions, particularly edible compositions, oral compositions and flavor compositions, containing a compound imparting a cooling sensation, said compound being a hydroxymethyl or hydroxyethyl derivative of para-menthane, for example 2-hydroxymethylmenthol.
    Type: Grant
    Filed: February 15, 1973
    Date of Patent: June 14, 1977
    Assignee: Lever Brothers Company
    Inventors: Francoise Ernestine Lucie Humbert, Yves Tollard D'Audiffret
  • Menthyl ester of N-acetylglycine and oral compositions containing same
    Patent number: 3991178
    Abstract: The menthyl ester of N-acetylglycine, which is prepared by esterification of glycine with menthol and acetylation, is used in compositions containing it and an orally-acceptable carrier, especially dentifrices, to give a refreshing effect in the mouth.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: November 9, 1976
    Assignee: Lever Brothers Company
    Inventors: Francoise Humbert, Gerard Guth, Yves Tollard D'Audiffret