Patents by Inventor Leif Roar Wongraven

Leif Roar Wongraven 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 and apparatus for injecting LCD into an offshore injection well
    Patent number: 8931287
    Abstract: A water-going liquefied carbon dioxide (LCD) transport vessel having a pressurized and refrigerated LCD container, a cargo discharge pump within the container for pumping LCD out of] the container along a conduit, a booster pump for pumping LCD along the conduit to a platform, a first backflow line downstream of the cargo pump to the container, a second backflow line from downstream of the booster pump to the container, and optionally a heater arranged to heat LCD flowing from the vessel along the conduit.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: January 13, 2015
    Inventors: Audun Aspelund, Henrik Krogstad, Tor Erling Sandvik, Jan Einar Fivelstad, Roar Frode Henningsen, Leif Roar Wongraven, Tor Erik Hilden, Narve Oma
  • Vessel
    Publication number: 20080256959
    Abstract: A water-going liquefied carbon dioxide (LCD) transport vessel comprising a pressurised and refrigerated LCD container, a cargo discharge pump within said container for pumping LCD out of said container along a conduit, a booster pump for pumping LCD along the conduit to a platform, a first backflow line downstream of the cargo pump to the container, a second backflow line from downstream of the booster pump to the container, and optionally a heater arranged to heat LCD flowing from said vessel along the conduit.
    Type: Application
    Filed: July 14, 2005
    Publication date: October 23, 2008
    Applicants: STATOIL ASA, SINVENT AS, ORKLA ENGINEERING, TEEKAY NORWAY AS
    Inventors: Audun Aspelund, Henrik Krogstad, Tor Erling Sandvik, Jan Einar Fivelstad, Roar Frode Henningsen, Leif Roar Wongraven, Tor Erik Hilden, Narve Oma