Patents by Inventor Armin Bertram

Armin Bertram 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).

  • Preparation of polyenecarbonyl compounds having a high content of the all-E isomer, and of their acetals or ketals
    Patent number: 5773635
    Abstract: A process for preparing polyenecarbonyl compounds having a high all-E content and their acetals or ketals by aldol condensation or Horner-Emmons reaction comprises carrying out the reaction, for the purposes of the preferred formation of a double bond of E configuration and in order to maintain the E configuration of the double bonds in the stating compounds as completely as possible, in the presence of oxygen or an oxygen-inert gas mixture or nitric oxide or a nitric oxide-inert gas mixture and/or in the presence of specific stable radicals and/or in the presence of quinones or quinone derivatives.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: June 30, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Dobler, Wolfgang Krause, Joachim Paust, Otto Worz, Udo Rheude, Wolfram Burst, Gunter Dauwel, Armin Bertram, Bernhard Schulz, Gunter Wegner, Peter Munster, Hansgeorg Ernst, Arno Kochner, Heinz Etzrodt