Patents by Inventor Helge Ahrens

Helge Ahrens 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).

  • Dressing
    Patent number: 6822132
    Abstract: A dressing especially for covering wounds or preventing or treating blisters, comprising a water vapor pervious carrier film uniformly covered with an adhesive layer, wherein there is centrally disposed on the adhesive layer a water vapor pervious polyurethane matrix which is beveled from an especially central point to the edge of the adhesive layer, although the periphery of the adhesive layer is at least partially not covered by the polyurethane matrix.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: November 23, 2004
    Assignee: Beiersdorf AG
    Inventors: Helge Ahrens, Carsten Hartkopf, Jochen Kenndoff, Ulrich Köhler, Dirk Lenz, Robert Mayan, Günther Sachau, Ingrid Wesselkamp
  • Self-adhesive wound dressings with adhesive wound management region
    Publication number: 20020160037
    Abstract: A wound dressing comprising a moisture vapor pervious polyurethane matrix beveled from an especially central point of the wound dressing toward the edge.
    Type: Application
    Filed: September 19, 2001
    Publication date: October 31, 2002
    Inventors: Helge Ahrens, Michael Schink, Jochen Kenndoff, Gunther Sachau, Reiner Leutz
  • Dressing
    Publication number: 20020156411
    Abstract: A dressing especially for covering wounds or preventing or treating blisters, comprising a water vapor pervious carrier film uniformly covered with an adhesive layer, wherein there is centrally disposed on the adhesive layer a water vapor pervious polyurethane matrix which is beveled from an especially central point to the edge of the adhesive layer, although the periphery of the adhesive layer is at least partially not covered by the polyurethane matrix.
    Type: Application
    Filed: September 13, 2001
    Publication date: October 24, 2002
    Applicant: Beiersdorf Aktiengesellschaft
    Inventors: Helge Ahrens, Carsten Hartkopf, Jochen Kenndoff, Ulrich Kohler, Dirk Lenz, Robert Mayan, Gunther Sachau, Ingrid Wesselkamp