Patents by Inventor Frank Reichmann

Frank Reichmann 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 recovering unsaturated fatty acids and derivatives thereof
    Patent number: 5777141
    Abstract: A process for the recovery of unsaturated fatty acids with at least 16 carbon atoms in the molecule or a derivative of such a fatty acid from a mixture of fatty acids and/or fatty acid derivatives by column chromatography with supercritical or liquid carbon dioxide as the mobile phase comprises using aluminum oxide, optionally pretreated with alkali, as the stationary phase. The pre-treatment of the aluminum oxide is conveniently effected by contacting the particulate aluminum oxide with an aqueous solution of an alkali metal or alkaline earth metal hydroxide, optionally supplemented with a water-miscible or water-soluble organic solvent, in the pH range of about 10 to about 13 over several hours. The unsaturated fatty acids or fatty acid derivatives produced chromatographically in this manner are suitable as valuable active agents in the fields of nutrition and medicine.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Roche Vitamins Inc.
    Inventors: Gerd Brunner, Frank Reichmann