Patents by Inventor Nathalie Dartnell

Nathalie Dartnell 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).

  • Microemulsion containing a perfuming concentrate and corresponding product
    Patent number: 5389607
    Abstract: The invention relates to a non-alcoholic perfuming product comprising a lipophilic phase based on a concentrate of odoriferous substance or perfume and a water-soluble phase, the said phases being combined in a microemulsion and the content of concentrate of odoriferous substances being between approximately 5 and 50% by weight of the product, a surfactant based on polyethylene glycol, a first cosurfactant based on polyglycerol and a second cosurfactant based on ether phosphate also being combined in the microemulsion.Application to the production of cosmetic products.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: February 14, 1995
    Assignee: Yves Saint Laurent Parfums
    Inventors: Nathalie Dartnell, Bernard Breda
  • Microemulsion containing a perfuming concentrate and corresponding product
    Patent number: 5252555
    Abstract: The invention relates to a non-alcoholic perfuming product comprising a lipophilic phase based on a concentrate of odoriferous substance or perfume and a water-soluble phase, the said phases being combined in a microemulsion and the content of concentrate of odoriferous substances being between approximately 5 and 50% by weight of the product, a surfactant based on polyethylene glycol, a first cosurfactant based on polyglycerol and a second cosurfactant based on ether phosphate also being combined in the microemulsion.Application to the production of cosmetic products.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: October 12, 1993
    Assignee: Yves Saint Laurent Parfumes
    Inventors: Nathalie Dartnell, Bernard Breda