Patents by Inventor Per Martin STENSTAD

Per Martin STENSTAD 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).

  • Hybrid polymer membrane
    Patent number: 12201937
    Abstract: The present invention relates to CO2 capture from gas mixtures by use of gas separation membranes. In particular, the invention relates to a gas separation membrane comprising: a gas permeable or porous support layer; and at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer. The present invention also relates to the method of separating CO2 from a gas and to the use of the gas separation membrane.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: January 21, 2025
    Assignee: SINTEF TTO AS
    Inventors: Marius Sandru, Eugenia Mariana Sandru, Per Martin Stenstad
  • Surface modified membranes for gas separation, and a method for preparing thereof
    Patent number: 11679356
    Abstract: The present invention relates to a CO2 selective gas separation membrane and a method for preparing the gas separation membrane and the use thereof. The CO2 selective gas separation membrane comprises a gas permeable or porous support layer; and at least one gas permeable polymer layer, which is surface modified with polymer chains having CO2 philic groups, wherein the gas permeable polymer layer has a spatially controlled distribution of the CO2 philic groups on the surface thereof. The method of preparing the CO2 selective gas separation membrane, comprises the steps of: depositing at least one gas permeable polymer layer on a porous or gas permeable support layer to form a dense membrane, and surface modifying the dense membrane with polymer chains having CO2 philic groups, to obtain spatially controlled distribution of the CO2 philic groups on the surface thereof.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: June 20, 2023
    Assignee: SINTEF TTO AS
    Inventors: Marius Sandru, Eugenia Mariana Sandru, Per Martin Stenstad
  • SURFACE MODIFIED MEMBRANES FOR GAS SEPARATION, AND A METHOD FOR PREPARING THEREOF
    Publication number: 20210236987
    Abstract: The present invention relates to a CO2 selective gas separation membrane and a method for preparing the gas separation membrane and the use thereof. The CO2 selective gas separation membrane comprises a gas permeable or porous support layer; and at least one gas permeable polymer layer, which is surface modified with polymer chains having CO2 philic groups, wherein the gas permeable polymer layer has a spatially controlled distribution of the CO2 philic groups on the surface thereof. The method of preparing the CO2 selective gas separation membrane, comprises the steps of: depositing at least one gas permeable polymer layer on a porous or gas permeable support layer to form a dense membrane, and surface modifying the dense membrane with polymer chains having CO2 philic groups, to obtain spatially controlled distribution of the CO2 philic groups on the surface thereof.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 5, 2021
    Inventors: Marius SANDRU, Eugenia Mariana SANDRU, Per Martin STENSTAD
  • HYBRID POLYMER MEMBRANE
    Publication number: 20210229031
    Abstract: The present invention relates to CO2 capture from gas mixtures by use of gas separation membranes. In particular, the invention relates to a gas separation membrane comprising: a gas permeable or porous support layer; and at least one CO2 selective polymer layer comprising carbonic anhydrase (CA) enzymes fixed within the at least one CO2 selective polymer layer. The present invention also relates to the method of separating CO2 from a gas and to the use of the gas separation membrane.
    Type: Application
    Filed: April 30, 2019
    Publication date: July 29, 2021
    Inventors: Marius SANDRU, Eugenia Mariana SANDRU, Per Martin STENSTAD