Patents by Inventor Claudia Stammen

Claudia Stammen 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).

  • Clear, cosmetic preparations containing fatty alcohol polyglycol ethers, ether sulfates and/or alk(en)yl oligoglycosides, and methods of preparing the same
    Patent number: 6723311
    Abstract: Cosmetic preparations comprising: (a) a mixture of two or more surfactants selected from the group consisting of (a1) fatty alcohol polyglycol ether sulfates, (a2) fatty alcohol polyglycol ethers, and (a3) alk(en)yl oligoglycosides; and (b) one or more oil components; wherein the mixture of surfactants is present in an amount of from 50 to 80% by weight, and the one or more oil components is present in an amount of from 20 to 50% by weight, based upon a total weight of the mixture and the one or more oil components; are disclosed. Also disclosed are methods of preparing such cosmetic preparations.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: April 20, 2004
    Assignee: Cognis Deutschland GmbH & Co. KG
    Inventors: Werner Seipel, Hermann Hensen, Norbert Boyxen, Celia Kosboth, Claudia Stammen