Patents by Inventor Brigette Wegner

Brigette Wegner 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 mixtures of polyglycerol fatty esters as emulsifiers in cosmetic and pharmaceutical formulations
    Patent number: 5147644
    Abstract: Mixtures of polyglycerol fatty esters obtainable by partial esterification of a polyglycerol mixture consisting offrom 0 to 5% by weight of monoglycerol,from 15 to 40% by weight of diglycerol,from 30 to 55% by weight of triglycerol,from 10 to 25% by weight of tetraglycerol,from 0 to 15% by weight of pentaglycerol,from 0 to 10% by weight of hexaglycerol andfrom 0 to 5% by weight of higher polyglycerolswith one or more saturated fatty acids of 12 to 22 carbon atoms or one or more unsaturated fatty acids of 16 to 22 carbon atoms, where the unsaturated fatty acid or fatty acid mixture used may furthermore contain up to 10% by weight of saturated fatty acids of 16 to 22 carbon atoms and the degree of esterification of the saturated or unsaturated fatty acids in the mixture is from 20 to 70%, are used as emulsifiers in cosmetic and pharmaceutical formulations.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: September 15, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Knut Oppenlaender, Brigette Wegner, Karl Stork, Franz Frosch, Hans-Ulrich Wekel