Patents by Inventor Sigrid Steinke

Sigrid Steinke 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).

  • Emulsifier-free, finely disperse cosmetic or dermatological formulations of the oil-in-water type
    Patent number: 5833951
    Abstract: Finely disperse, emulsifier-free cosmetic or dermatological formulations of the oil-in-water type, comprisingan oily phase comprising, as the main constituent, one or more non-polar oils, fats and/or waxes,an aqueous phase,one or more thickeners selected from the group consisting of acrylic polymers, polysaccharides and alkyl ethers thereof, these thickeners not being allowed to have emulsifier properties,and, if desired, comprising customary cosmetic or dermatological auxiliaries, additives and/or active compounds.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: November 10, 1998
    Assignee: Beiersdorf AG
    Inventors: Dorte Artz, Michael Christiansen, Uwe Schonrock, Sigrid Steinke
  • Emulsifier-free, finely disperse cosmetic or dermatological formulations of the water-in-oil type
    Patent number: 5804167
    Abstract: Finely disperse, emulsifier-free cosmetic or dermatological formulations of the water-in-oil type, comprisingoily phase comprising, as the main constituent, or more non-polar oils, fats and/or waxes,aqueous phase, or more salts of di- and/or trivalent metal cations and one or more alkylcarboxylic acids having 10-24 C atoms,and, if desired, comprising customary cosmetic or dermatological auxiliaries, additives and/or active compounds.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: September 8, 1998
    Assignee: Beiersdorf AG
    Inventors: Uwe Schonrock, Michael Christiansen, Sigrid Steinke