Patents by Inventor Angelika Kühnle

Angelika Kühnle 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).

  • Surfactant mixtures for tertiary oil recovery
    Patent number: 8524643
    Abstract: Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list: an amphiphilic comb polymer having a backbone with two or more side chains attached to the backbone, the side chains differing from one another and/or the side chains differing from the backbone in their amphiphilic character, an amphiphilic polymer having one or more hydrophobic subunits [A2] based on a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged double bonds, and one or more hydrophilic subunits [B2], or an amphiphilic polymer having the general structural formula
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 3, 2013
    Assignee: BASF SE
    Inventors: Juergen Huff, Guenter Oetter, Angelika Kuehnle, Susanne Petrovic, Marcus Guzmann, Ingo Muenster, Gregor Brodt
  • Surfactant Mixtures for Tertiary Oil Recovery
    Publication number: 20120012311
    Abstract: Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list: an amphiphilic comb polymer having a backbone with two or more side chains attached to the backbone, the side chains differing from one another and/or the side chains differing from the backbone in their amphiphilic character, an amphiphilic polymer having one or more hydrophobic subunits [A2] based on a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged double bonds, and one or more hydrophilic subunits [B2], or an amphiphilic polymer having the general structural formula
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: BASF SE
    Inventors: Jüergen Huff, Günter Oetter, Angelika Kühnle, Susanne Petrovic, Marcus Guzmann, Ingo Münster, Gregor Brodt
  • Surfactant mixtures for tertiary oil recovery
    Patent number: 8053396
    Abstract: Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list: an amphiphilic comb polymer having a backbone with two or more side chains attached to the backbone, the side chains differing from one another and/or the side chains differing from the backbone in their amphiphilic character, an amphiphilic polymer having one or more hydrophobic subunits [A2] based on a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged double bonds, and one or more hydrophilic subunits [B2], or an amphiphilic polymer having the general structural formula
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: November 8, 2011
    Assignee: BASF SE
    Inventors: Jürgen Huff, Günter Oetter, Angelika Kühnle, Susanne Petrovic, Marcus Guzmann, Ingo Münster, Gregor Brodt