Patents by Inventor Jürgen Matthäus Wagner

Jürgen Matthäus Wagner 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 producing substituted indanones
    Patent number: 6245944
    Abstract: A process for preparing a compound of the formula I where R1 and R2 are hydrogen or C1-C4-alkyl and R3 is C1-C10-alkyl, phenyl or C1-C4-alkyl-substituted phenyl, comprises reacting a compound II with a compound of the formula III where X is chlorine, bromine or iodine, in the presence of a Friedel-Crafts catalyst in one step to give a compound I.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: June 12, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Carsten Süling, Heike Gregorius, Walter Dobler, Roland Hingmann, Bernhard Rieger, Ulf Dietrich, Jürgen Matthäus Wagner, Hans-Joachim Müller