Patents by Inventor Klaus Fahrner

Klaus Fahrner 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 sorbic acid from sorbic acid polyester
    Publication number: 20030065218
    Abstract: The invention relates to a process for preparing sorbic acid by cleaving the sorbic acid polyester prepared from crotonaldehyde and ketene, the sorbic acid polyester being distilled and the cleavage being catalyzed by an amine, which comprises separating off the amine from the distillation residue by distillation under reduced pressure and at a temperature which is higher than the temperature of the polyester distillation and recovering it.
    Type: Application
    Filed: September 9, 2002
    Publication date: April 3, 2003
    Inventors: Christoph Mollenkopf, Erwin Weiss, Thomas Beck, Andreas Schneider, Klaus Fahrner, Stefan Purps