Patents by Inventor Jan Hilmers

Jan Hilmers 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 to treat industrial wastewater
    Patent number: 9376335
    Abstract: The present invention concerns a process for treatment of industrial waste water containing both easy biodegradable and heavy biodegradable matter wherein the process comprises the two steps of first treating the waste water in a bioreactor wherein a nitrate solution is added and secondly treating the waste water in a chemical oxidation step wherein an oxidizer, permanganate, is added.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: June 28, 2016
    Assignee: YARA INTERNATIONAL ASA
    Inventors: Tim Corben, Wolfram Franke, Marina Ettl, Jan Hilmers
  • PROCESS TO TREAT INDUSTRIAL WASTEWATER
    Publication number: 20140027377
    Abstract: The present invention concerns a process for treatment of industrial waste water containing both easy biodegradable and heavy biodegradable matter wherein the process comprises the two steps of first treating the waste water in a bioreactor wherein a nitrate solution is added and secondly treating the waste water in a chemical oxidation step wherein an oxidizer, permanganate, is added.
    Type: Application
    Filed: March 26, 2012
    Publication date: January 30, 2014
    Inventors: Tim Corben, Wolfram Franke, Marina Ettl, Jan Hilmers