Patents by Inventor Martina Hollenbrock

Martina Hollenbrock 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 nanoscale sterols and sterol esters
    Patent number: 6316030
    Abstract: A composition containing an effective amount of nanoparticles selected from the group consisting of nanoscale sterols, nanoscale sterol esters, and mixtures thereof.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: November 13, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Christian Kropf, Thomas Foerster, Bernd Fabry, Martina Hollenbrock
  • Method for demulsifying emulsions
    Patent number: 6310106
    Abstract: A process for breaking an emulsion into a water phase and an oil phase involving: (a) providing an emulsion containing an oil phase and a water phase; (b) providing an alkoxylated C10-24 carboxylic acid ester derived by the addition of ethylene oxide and/or propylene oxide onto a ring opened epoxidized C10-24 carboxylic acid triglyceride which is ring opened with a C6-18 carboxylic acid; and (c) contacting the emulsion with a demulsifying effective amount of the alkoxylated C10-24 carboxylic acid ester. Said process has application on crude oil emulsions.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: October 30, 2001
    Assignee: Cognis Deutschland GmbH
    Inventors: Stefan Podubrin, Wolfgang Breuer, Claus-Peter Herold, Andreas Heidbreder, Thomas Foerster, Martina Hollenbrock
  • Body cleansing agent
    Patent number: 6303109
    Abstract: The invention relates to lipid soluble, water insoluble cosmetic or dermatological active substances which can be included in body cleansing agents in the form of an aqueous preparation with at least 5 wt. % water soluble ionic or non-ionic surfactant content by solubilization of the active substances with a polar lipid in lipid-surfactant mixed micelles or liquid crystals or by microemulsification with a nonpolar lipid, wherein the emulsion particles have a diameter which is less than 500 nm. Said agents are also characterized by enhanced skin penetration by the active substances.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: October 16, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Thomas Foerster, Martina Hollenbrock, Wolfhard Scholz, Wolfgang Pittermann, Michael Schmitt