Patents by Inventor Walter Trösch

Walter Trösch 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).

  • Publication number: 20170145361
    Abstract: A bioreactor is disclosed. The bioreactor comprises at least one rise chamber containing a growth medium and at least one fall chamber connected to the at least one rise chamber at a top and at a bottom to form a loop. A first gas inlet is connected to the at least one rise chamber for supplying a gas flow to the at least one rise chamber and a second gas inlet supplied gas enriched with carbon dioxide.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 25, 2017
    Inventors: Peter Bergmann, Walter Troesch, Peter Ripplinger
  • Publication number: 20120214198
    Abstract: The present invention relates to bioprocess engineering methods in which aqueous phases of anaerobic biologically treated organic suspensions are supplied to algal cultures as media components. The present invention also relates to the use of aqueous phases of anaerobic biologically treated organic suspensions as media components of algal cultures. Additionally, the present invention relates to the use of aqueous phases of anaerobic biologically treated organic suspensions to improve the growth conditions of algae in photobioreactors. Furthermore, the present invention relates to the use of algae for the treatment of aqueous phases of anaerobic biologically treated organic suspensions, in particular of anaerobic biologically treated sewage filtrate. The present invention also relates to bioprocess engineering devices (100) comprising a bioreactor (1), in particular a fermentation tower and a photobioreactor (3).
    Type: Application
    Filed: October 15, 2010
    Publication date: August 23, 2012
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: Walter Trösch
  • Patent number: 7374928
    Abstract: The invention relates to a bioreactor for cultivating microorganisms, as well as a method for its production. The invention is characterized in that the bioreactor (1) comprises two identically constructed base elements (2,3) that are constructed in trough shape and consist of a bottom part (4) and four side parts (5) arranged on a bottom part (4) and having an inside depth T1. The base element (2,3) consists of a light permeable material. The identically constructed base elements (2,3) are arranged on each other so as to exactly cover each other. A flow guide device is arranged inside the identically constructed base elements (2,3).
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 20, 2008
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V
    Inventor: Walter Trösch
  • Patent number: 6509188
    Abstract: A photobioreactor is described that has a reactor chamber that is made of light-transparent material and that has an increased surface area.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: January 21, 2003
    Assignee: Fraunhofer-Gesellschaft Zur
    Inventors: Walter Trösch, Ulrike Schmid-Staiger, Armin Zastrow, Alexander Retze, Franz Brucker
  • Patent number: 6146532
    Abstract: The present invention relates to a process for the biological purification of wastewater in which a liquid stream is fed to the aerobic biological purification stage, which liquid stream has already been freed in advance from undissolved substances using a membrane separation process.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: November 14, 2000
    Assignee: Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.
    Inventor: Walter Troesch
  • Patent number: 5746920
    Abstract: A process and apparatus for purifying lactose-containing wastewater. The process comprises first treating the wastewater with base. The treated wastewater is then introduced into a fermenter where the lactose present in the wastewater is fermented to form a fermentation broth and lactic acid. The broth is advantageously subjected to purification and the purified broth is subjected to bipolar electrodialysis to yield concentrated lactic acid and base solutions from the purified broth. A device is provided for carrying out the process.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: May 5, 1998
    Assignee: Fraunhofer-Gesellschaft zur Foerder der Angewandten Forschung e.V.
    Inventors: Peter Boergardts, Wolfgang Krischke, Walter Troesch