Patents by Inventor Dag Normann Øvrebø

Dag Normann Øvrebø 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).

  • Apparatus and method for treatment of wet organic matter to produce biogas
    Patent number: 11268057
    Abstract: Apparatus for treatment of wet organic matter to produce biogas, comprising a closed reactor (11) for anaerobic digestion of the wet organic matter. The anaerobic reactor comprises two vertical 5 tubes, a vertically arranged outer tube (14) defining a first reactor chamber (111) enveloping a vertically arranged inner tube (15) which is divided into a first region (112a) and a second region (112b) of a second reactor chamber (112) by a vertical partitioning wall (16). The first reactor chamber comprises a particle retaining unit (31) connecting the first and the second reactor chambers. The anaerobic reactor (11) exhibits a top discharge pipe (18) for gas developed in either 0 of the two reactor chambers (111, 112). A method for treatment of wet organic matter is also contemplated.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 8, 2022
    Assignees: UNIVERSITETET I SØRØST-NORGE, WATERMENT AS, YARA INTERNATIONAL ASA
    Inventors: Rune Bakke, Dag Normann Øvrebø
  • APPARATUS AND METHOD FOR TREATMENT OF WET ORGANIC MATTER TO PRODUCE BIOGAS
    Publication number: 20190359921
    Abstract: Apparatus for treatment of wet organic matter to produce biogas, comprising a closed reactor (11) for anaerobic digestion of the wet organic matter. The anaerobic reactor comprises two vertical 5 tubes, a vertically arranged outer tube (14) defining a first reactor chamber (111) enveloping a vertically arranged inner tube (15) which is divided into a first region (112a) and a second region (112b) of a second reactor chamber (112) by a vertical partitioning wall (16). The first reactor chamber comprises a particle retaining unit (31) connecting the first and the second reactor chambers. The anaerobic reactor (11) exhibits a top discharge pipe (18) for gas developed in either 0 of the two reactor chambers (111, 112). A method for treatment of wet organic matter is also contemplated.
    Type: Application
    Filed: January 17, 2018
    Publication date: November 28, 2019
    Applicants: Universitetet i Sørøst-Norge, Waterment AS, Yara International ASA
    Inventors: Rune Bakke, Dag Normann Øvrebø