Patents by Inventor Bernard Riefling

Bernard Riefling 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 reaction of halogenated aromatics with electrophiles
    Patent number: 5262556
    Abstract: The invention relates to a process for the reaction of fluorinated or chlorinated aromatics with electrophiles at the ortho position relative to the fluorine or chlorine atom, characterized in that a strong base is added to a mixture of the fluorinated or chlorinated aromatic and the electrophile.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: November 16, 1993
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Bernard Riefling, Jurgen Seubert, Volker Reiffenrath, Reinhard Hittich