Patents by Inventor Corinna Freitag

Corinna Freitag 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).

  • Diesel oxidation catalyst with layer structure for improved hydrocarbon conversion
    Patent number: 8252258
    Abstract: Provided is a diesel oxidation catalyst for the treatment of exhaust gas emissions from a diesel engine and a method for treating a diesel exhaust gas stream, the method comprising providing a diesel oxidation catalyst and contacting said diesel exhaust gas stream with said diesel oxidation catalyst for the treatment of exhaust gas emissions. More particularly, the present invention is directed to a catalyst structure comprising three distinct layers; in which layer comprises a precious metal component such as palladium is located between two hydrocarbon storage layers comprising a molecular sieve such as a zeolite.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: August 28, 2012
    Assignee: BASF Corporation
    Inventors: Torsten W. Müller-Stach, Torsten Neubauer, Alfred H. Punke, Gerd Grubert, Attilio Siani, Corinna Freitag
  • Diesel Oxidation Catalyst With Layer Structure for Improved Hydrocarbon Conversion
    Publication number: 20100180582
    Abstract: Provided is a diesel oxidation catalyst for the treatment of exhaust gas emissions from a diesel engine and a method for treating a diesel exhaust gas stream, the method comprising providing a diesel oxidation catalyst and contacting said diesel exhaust gas stream with said diesel oxidation catalyst for the treatment of exhaust gas emissions. More particularly, the present invention is directed to a catalyst structure comprising three distinct layers; in which layer comprises a precious metal component such as palladium is located between two hydrocarbon storage layers comprising a molecular sieve such as a zeolite.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 22, 2010
    Applicant: BASF Catalysts LLC
    Inventors: Torsten Wolfgang Mueller-Stach, Torsten Neubauer, Alfred Helmut Punke, Gerd Grubert, Attilio Siani, Corinna Freitag