Patents by Inventor Erhard Henning Fleischhauer

Erhard Henning Fleischhauer 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 preparing pseudoionone
    Patent number: 8921605
    Abstract: Use of pure lanthanum oxide which is obtained by calcination of oxygen-containing lanthanum salts at temperatures of at least 700° C. as heterogeneous catalyst in the aldol condensation of citral and acetone to give pseudoionone, and process for the preparation of pseudoionone by aldol condensation of citral and acetone in the liquid phase using pure lanthanum oxide.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 30, 2014
    Assignee: DSM IP Assets B.V.
    Inventors: Wolfgang Hölderich, Verena Ritzerfeld, Bernhard Markus Ernst Russbüldt, Erhard Henning Fleischhauer, Werner Bonrath, Reinhard Karge, Jan Schütz
  • PROCESS FOR PREPARING PSEUDOIONONE
    Publication number: 20130310607
    Abstract: Use of pure lanthanum oxide which is obtained by calcination of oxygen-containing lanthanum salts at temperatures of at least 700° C. as heterogeneous catalyst in the aldol condensation of citral and acetone to give pseudoionone, and process for the preparation of pseudoionone by aldol condensation of citral and acetone in the liquid phase using pure lanthanum oxide.
    Type: Application
    Filed: July 19, 2011
    Publication date: November 21, 2013
    Applicant: DSM IP ASSETS B.V.
    Inventors: Wolfgang Hölderich, Verena Ritzerfeld, Bernhard Markus Ernst Russbüldt, Erhard Henning Fleischhauer, Werner Bonrath, Reinhard Karge, Jan Schütz