Patents by Inventor Ulrike Jacobs

Ulrike Jacobs 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).

  • Amphiphilic compounds with at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diamides
    Patent number: 6323363
    Abstract: The invention concerns amphiphilic compounds of general formula (I) with at least two hydrophilic and at least two hydrophobic groups based on dicarboxylic acid diamides. The disclosed amphiphilic compounds mostly have a surfactant activity and are useful as emulsifiers, demulsifiers, detergents, dispersants, and hydrotropic agents for industry and household, for example in the fields of metal working, ore mining, surface finishing, washing and cleaning, cosmetics, medicine, foodstuff processing and preparation.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: November 27, 2001
    Assignee: RWE-DEA Aktiengesellschaft fuer Mineraloel und Chemie
    Inventors: Klaus Kwetkat, Ulrike Jacobs, Silvia Scholz
  • Process for preparing mono-, Di- or oligoamide alkoxylates
    Patent number: 6211409
    Abstract: A process is disclosed for preparing di- or oligoamide alkoxylates. Diamides are prepared from carboxylic acids or carboxylic acid alkyl esters and di-, oligo-, or polyamines and are alkoxylated as a melt directly after their preparation, without any further intermediate preparation process.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: April 3, 2001
    Assignee: RWE-DEA Aktiengesellschaft fuer Mineraloel und Chemie
    Inventors: Ulrike Jacobs, Uwe Kaltwasser, Klaus Kwetkat, Ernst-Jürgen Lehmann