Patents by Inventor Franck Duffournier

Franck Duffournier 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).

  • Cosmetic compositions with optical variability
    Publication number: 20050008595
    Abstract: A composition having, for an incident illumination of 45°, a variation Dh of hue angle h of at least 50°, and, for example, of at least 70°, when the angle of observation is varied from ?10° to +30°, and a difference (?a*2+?b*2)1/2 of at least 5 when the angle of observation is varied from ?30° to ?70°.
    Type: Application
    Filed: May 14, 2004
    Publication date: January 13, 2005
    Inventors: Franck Duffournier, Gaetan Chevalier