Patents by Inventor KAI HOEHN

KAI HOEHN 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 utilizing liquid manure material
    Patent number: 6387272
    Abstract: A process for utilizing the material of ammonium-containing effluent which contains further soluble constituents and, possible additional solids, comprising: a) optionally separating off the solids, b) concentrating the substantially solids-free ammonium-containing effluent to give an aqueous concentrate having an increased content of ammonium and additional soluble constituents, with simultaneous recovery of substantially ammonium-free pure water, c) precipitating ammonium as magnesium ammonium phosphate from the ammonium-containing aqueous concentrate, and d) separating off precipitated magnesium ammonium phosphate with recovery of substantially ammonium-free residual concentrate which at least partially contains the additional soluble constituents.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: May 14, 2002
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Thomas Hirth, Rainer Schweppe, Kai Höhn
  • PROCESS FOR UTILIZING LIQUID MANURE MATERIAL
    Publication number: 20010043900
    Abstract: A process for utilizing the material of ammonium-containing effluent which contains further soluble constituents and, possible additional solids, comprising:
    Type: Application
    Filed: July 6, 1999
    Publication date: November 22, 2001
    Inventors: THOMAS HIRTH, RAINER SCHWEPPE, KAI HOEHN