Patents by Inventor Barbara Hohenberg

Barbara Hohenberg 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).

  • Cross-linked polyglycerol esters
    Patent number: 11807603
    Abstract: The invention relates to a polyglycerol partial ester obtainable by esterification of a polyglycerol with a carboxylic acid mixture comprising at least one polyhydroxycarboxylic acid of a hydroxycarboxylic acid having 8 to 32 carbon atoms, at least one short-chain dicarboxylic acid having 2 to 16, preferably 6 to 14, particularly preferably 8 to 12, carbon atoms, at least one long-chain dicarboxylic acid having 24 to 44, preferably 30 to 40, particularly preferably 34 to 38, carbon atoms, and at least one fatty acid selected from linear, unsaturated and branched, saturated fatty acids having 14 to 24 carbon atoms, to a method for preparing polyglycerol partial esters, and to the use of corresponding polyglycerol partial esters as W/O emulsifier.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: November 7, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Jan Marian Von Hof, Achim Friedrich, Wolfgang Berkels, Barbara Hohenberg, Oliver Springer, Juergen Meyer
  • CROSS-LINKED POLYGLYCEROL ESTERS
    Publication number: 20190202771
    Abstract: The invention relates to a polyglycerol partial ester obtainable by esterification of a polyglycerol with a carboxylic acid mixture comprising at least one polyhydroxycarboxylic acid of a hydroxycarboxylic acid having 8 to 32 carbon atoms, at least one short-chain dicarboxylic acid having 2 to 16, preferably 6 to 14, particularly preferably 8 to 12, carbon atoms, at least one long-chain dicarboxylic acid having 24 to 44, preferably 30 to 40, particularly preferably 34 to 38, carbon atoms, and at least one fatty acid selected from linear, unsaturated and branched, saturated fatty acids having 14 to 24 carbon atoms, to a method for preparing polyglycerol partial esters, and to the use of corresponding polyglycerol partial esters as W/O emulsifier.
    Type: Application
    Filed: May 15, 2017
    Publication date: July 4, 2019
    Applicant: Evonik Degussa GmbH
    Inventors: Jan Marian Von Hof, Achim Friedrich, Wolfgang Berkels, Barbara Hohenberg, Oliver Springer, Juergen Meyer