Patents by Inventor Axel Kirste

Axel Kirste 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).

  • Process for the preparation of vanillin
    Publication number: 20140034508
    Abstract: The present invention relates to a process for preparing vanillin, comprising an electrolysis of an aqueous, alkaline lignin-comprising suspension or solution, wherein, as anode material, a base alloy is used which is selected among Co-base alloys, Fe-base alloys, Cu-base alloys and Ni-base alloys.
    Type: Application
    Filed: July 3, 2013
    Publication date: February 6, 2014
    Inventors: Florian Stecker, Andreas Fischer, Axel Kirste, Siegfried Waldvogel, Carolin Regenbrecht, Dominik Schmitt
  • Process for the anodic dehydrodimerization of substituted phenols
    Patent number: 8449755
    Abstract: The invention relates to a process for preparing biaryl alcohols, in which anodic dehydrodimerization of substituted phenols is carried out in the presence of partially fluorinated and/or periluorinated mediators and a supporting electrolyte at a graphite electrode.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 28, 2013
    Assignee: BASF SE
    Inventors: Andreas Fischer, Itamar Michael Malkowsky, Florian Stecker, Siegfried Waldvogel, Axel Kirste
  • PROCESS FOR THE ANODIC CROSS-DEHYDRODIMERIZATION OF ARENES
    Publication number: 20120080320
    Abstract: The invention relates to a process for preparing biaryls by anodic cross-dehydrodimerization of substituted phenols with arenes in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.
    Type: Application
    Filed: June 1, 2010
    Publication date: April 5, 2012
    Applicant: BASF SE
    Inventors: Andreas Fischer, Itamar Michael Malkowsky, Florian Stecker, Siegfried R. Waldvogel, Axel Kirste
  • PROCESS FOR PREPARING UNSYMMETRICAL BIARYL ALCOHOLS
    Publication number: 20120067736
    Abstract: The invention relates to a process for preparing unsymmetrical biaryl by anodic dehydrodimerization of substituted ortho-alkoxyaryl alcohols in the presence of partially fluorinated and/or perfluorinated mediators and a supporting electrolyte.
    Type: Application
    Filed: June 1, 2010
    Publication date: March 22, 2012
    Applicant: BASF SE
    Inventors: Florian Stecker, Andreas Fischer, Itamar Michael Malkowsky, Siegfried R. Waldvogel, Axel Kirste
  • PROCESS FOR THE ANODIC DEHYDRODIMERIZATION OF SUBSTITUTED PHENOLS
    Publication number: 20110147228
    Abstract: The invention relates to a process for preparing biaryl alcohols, in which anodic dehydrodimerization of substituted phenols is carried out in the presence of partially fluorinated and/or periluorinated mediators and a supporting electrolyte at a graphite electrode.
    Type: Application
    Filed: August 28, 2009
    Publication date: June 23, 2011
    Applicant: BASF SE
    Inventors: Andreas Fischer, Itamar Michael Malkowsky, Florian Stecker, Siegfried Waldvogel, Axel Kirste