Patents by Inventor Nils-Joel E. Nilsson

Nils-Joel E. Nilsson 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).

  • Patent number: 4422936
    Abstract: A device for the diffusion of substances between fluids through semi-permeable membranes is disclosed. The device includes a stack of alternating spacer plates and semi-permeable membranes including transverse passages for each of the fluids so that one of the fluids is conducted on one side of the membranes while the other fluid is conducted across the opposite side of the membranes, and including inlets and outlets for each of the fluids, and in which at least one of the inlets or outlets includes a fluid duct to divert that fluid from its respective transverse passage to a location between the ends of the stack so that it can be fed into or withdrawn from the device in a direction substantially perpendicular to the transverse passages at that location between the ends of the stack.
    Type: Grant
    Filed: March 17, 1981
    Date of Patent: December 27, 1983
    Assignee: Gambro AG
    Inventors: Gerhard Riede, Nils-Joel E. Nilsson