Patents by Inventor Espen KOWALEWSKI

Espen KOWALEWSKI 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: 20180179875
    Abstract: A configuration of elongate subsurface heaters (20) in a subsurface oil shale formation (10) for use in hydrocarbon production. The heaters (20) are grouped into a series of columns (40), and the columns extend generally perpendicular to the sedimentary layers (50) of the subsurface oil shale formation (10). The heaters may also be grouped into a series of layers, with each layer extending in one sedimentary layer of the oil shale formation.
    Type: Application
    Filed: June 3, 2016
    Publication date: June 28, 2018
    Inventors: Margrete HÃ¥nes WESENBERG, Espen KOWALEWSKI