Patents by Inventor Wolfgang Horz

Wolfgang Horz 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).

  • Biological method of treating sewage containing high concentrations of sludge
    Patent number: 6048460
    Abstract: The invention relates to a process for the biological treatment of waste water, in which a mixture of activated sludge and waste water is treated with gas in an activation stage and the activated sludge is separated off from the treated waste water by flotation, wherein the concentration of the activated sludge in the activation stage is .gtoreq.6 g/l and wherein the flotation is a pressure-relief flotation.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: April 11, 2000
    Assignee: Hoechst Research & Technology Deutschand GmbH & Co. KG
    Inventors: Wolfgang Horz, Friedhelm Zorn, Hans Lohe