Patents Assigned to Difftech AS
  • Method and device for determining penetration of gaseous substance through a membrane
    Patent number: 7004010
    Abstract: This invention relates to a method and device for measuring the penetration of gases through a package material. More specific, it relates to a method for predicting the transmission rate of the gaseous substance through the walls of a package as a function of time from a limited number of measured concentrations of the gaseous substance within the package. Even more specific, it relates to a method and device for testing the oxygen transmission rates into packages employed for instance for food or pharmaceutical products under realistic storing conditions.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: February 28, 2006
    Assignee: Difftech AS
    Inventors: Hanne Larsen, Achim Kohler
  • Method and device for determining penetration of gaseous substance through a membrane
    Publication number: 20050076705
    Abstract: This invention relates to a method and device for measuring the penetration of gases through a package material. More specific, it relates to a method for predicting the transmission rate of the gaseous substance through the walls of a package as a function of time from a limited number of measured concentrations of the gaseous substance within the package. Even more specific, it relates to a method and device for testing the oxygen transmission rates into packages employed for instance for food or pharmaceutical products under realistic storing conditions.
    Type: Application
    Filed: January 18, 2002
    Publication date: April 14, 2005
    Applicant: Difftech AS
    Inventors: Hanne Larsen, Achim Kohler