Patents by Inventor Elisabeth K. Sjoblom Urmann

Elisabeth K. Sjoblom Urmann 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: 6361790
    Abstract: A non-occlusive medication patch to be applied to the skin includes a porous self-supporting backing layer to give the patch the required integrity and strength by acting as a supporting framework for other components, and a flexible hydrophilic pressure-sensitive adhesive reservoir comprising a natural or synthetic polymer for the sustained release of medication to be absorbed topically through the skin into the body of a patient. The reservoir has two portions: first, an external coating layer with an exposed lower skin-contacting surface that forms a pressure-sensitive bond with the skin, and second, an upper internal portion which infiltrates the porous backing and becomes solidified therein after being applied so that the reservoir and the backing are unified, enabling the backing itself to act as a storage location for the medication-containing reservoir.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: March 26, 2002
    Assignee: LecTec Corporation
    Inventors: David Rolf, Elisabeth K. Sjoblom Urmann
  • Patent number: 6096334
    Abstract: A non-occlusive medication patch to be applied to the skin includes a porous self-supporting backing layer to give the patch the required integrity and strength by acting as a supporting framework for other components, and a flexible hydrophilic pressure-sensitive adhesive reservoir comprising a natural or synthetic polymer for the sustained release of medication to be absorbed topically through the skin into the body of a patient. The reservoir has two portions: first, an external coating layer with an exposed lower skin-contacting surface that forms a pressure-sensitive bond with the skin, and second, an upper internal portion which infiltrates the porous backing and becomes solidified therein after being applied so that the reservoir and the backing are unified, enabling the backing itself to act as a storage location for the medication-containing reservoir.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: August 1, 2000
    Assignee: LecTec Corporation
    Inventors: David Rolf, Elisabeth K. Sjoblom Urmann
  • Patent number: 6096333
    Abstract: A non-occlusive medication patch to be applied to the skin includes a porous self-supporting backing layer to give the patch the required integrity and strength by acting as a supporting framework for other components, and a flexible hydrophilic pressure-sensitive adhesive reservoir comprising a natural or synthetic polymer for the sustained release of medication to be absorbed topically through the skin into the body of a patient. The reservoir has two portions: first, an external coating layer with an exposed lower skin-contacting surface that forms a pressure-sensitive bond with the skin, and second, an upper internal portion which infiltrates the porous backing and becomes solidified therein after being applied so that the reservoir and the backing are unified, enabling the backing itself to act as a storage location for the medication-containing reservoir.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: August 1, 2000
    Assignee: LecTec Corporation
    Inventors: David Rolf, Elisabeth K. Sjoblom Urmann
  • Patent number: 5741510
    Abstract: A medication patch to be applied to the skin includes a self-supporting backing layer to give the patch the required integrity and strength by acting as a supporting framework for other components, and a flexible hydrophilic pressure-sensitive adhesive reservoir comprising a natural or synthetic polymer for the sustained release of medication to be absorbed topically through the skin into the body of a patient. The reservoir has two portions: first, an external coating layer with an exposed lower skin-contacting surface that forms a pressure-sensitive bond with the skin, and second, an upper internal portion which infiltrates the porous backing and becomes solidified therein after being applied so that the reservoir and the backing are unified, enabling the backing itself to act as a storage location for the medication-containing reservoir.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: April 21, 1998
    Assignee: Lectec Corporation
    Inventors: David Rolf, Elisabeth K. Sjoblom Urmann