Patents by Inventor Bernd Kirrmann

Bernd Kirrmann 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 manganese complexes of salen compounds
    Patent number: 6794526
    Abstract: A process for the preparation of manganese complexes of salen compounds which comprises carrying out the reaction of a salen compound with a manganese compound in DMF is described. In a preferred embodiment, the salen compound itself is synthesised likewise in DMF and reacted without intermediate isolation to form the manganese complex.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: September 21, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Gerhard Beck, Claus Korhummel, Hanspeter Baier, Frank Bachmann, Cornelia Makowka, Reiner Linde, Bernd Kirrmann
  • Process for the preparation of manganese complexes of salen compounds
    Publication number: 20030100763
    Abstract: A process for the preparation of manganese complexes of salen compounds which comprises carrying out the reaction of a salen compound with a manganese compound in DMF is described. In a preferred embodiment, the salen compound itself is synthesised likewise in DMF and reacted without intermediate isolation to form the manganese complex.
    Type: Application
    Filed: January 2, 2003
    Publication date: May 29, 2003
    Inventors: Gerhard Beck, Claus Korhummel, Hanspeter Baier, Frank Bachmann, Cornelia Makowka, Reiner Linde, Bernd Kirrmann