Patents by Inventor Michael Rückriegel

Michael Rückriegel 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).

  • Catalyst for the synthesis of alkyl mercaptan and process for the production thereof
    Patent number: 7691776
    Abstract: The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: April 6, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Hubert Redlingshöfer, Christoph Weckbecker, Andreas Dörflein, Michael Rückriegel
  • CATALYST FOR THE SYNTHESIS OF ALKYL MERCAPTAN AND PROCESS FOR THE PRODUCTION THEREOF
    Publication number: 20090306432
    Abstract: The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.
    Type: Application
    Filed: August 14, 2009
    Publication date: December 10, 2009
    Applicant: Evonik Degussa GmbH
    Inventors: HUBERT REDLINGSHÖFER, CHRISTOPH WECKBECKER, ANDREAS DÖRFLEIN, MICHAEL RÜCKRIEGEL
  • Catalyst for the synthesis of alkyl mercaptan and process for the production thereof
    Patent number: 7592288
    Abstract: The invention relates to an oxidic catalyst containing cesium and tungsten for the synthesis of alkyl mercaptans from alkanols and hydrogen sulfide, and to a process for the production of this catalyst, wherein the molar ratio of cesium to tungsten is <2:1.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: September 22, 2009
    Assignee: Evonik Degussa GmbH
    Inventors: Hubert Redlingshöfer, Christoph Weckbecker, Andreas Dörflein, Michael Rückriegel