Patents by Inventor Claus-Jürgen Maier

Claus-Jürgen Maier 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).

  • Synthesis of 2-chloromethyl-6-methylbenzoic ester
    Patent number: 6989462
    Abstract: A process is described for preparing compounds of formula (I) where R is H, optionally halogen-substituted alkyl, cycloalkyl, aryl, alkyl-aryl or heteroaryl, and, in alkyl and cycloalkyl, one or more CH2 groups may be replaced by —O—. The compounds of the formula (I) are valuable intermediates in the synthesis of PPAR agonists.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: January 24, 2006
    Assignee: Sanofi-Aventis Deutschland GmbH
    Inventors: Claus-Jürgen Maier, Tobias Metzenthin, Joachim Graeser, Richard Bicker, Javier Manero